-
The Personalized Thermal Comfort Prediction Using an MH-LSTM Neural Network Method Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-18 Jaeyoun Cho, Hyunkyu Shin, Yonghan Ahn, Jongnam Ho
As demand for indoor thermal comfort increases, occupants’ subjective thermal sensation is becoming an important indicator of the building environment. Traditional models like the predicted mean vote-based model may not be reliable for individual comfort. This study proposed the multihead long short-term memory (LSTM) model to reflect physical and environment-driven data variation. Controlled experiments
-
Expression and Analysis of Uncertainty in Deep Foundation Pit Design Scheme Decision-Making Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-17 Yu Cui, Qun Wang, Tiebing Chen, Ronghui Deng, Xiaoliang Chen
The burgeoning urbanization of major cities has precipitated a critical examination of deep foundation pit projects, with escalating costs, protracted construction phases, complex site conditions, and specialized technical requirements. Selecting the optimal design scheme from multiple alternatives in a multiattribute decision-making environment poses a significant challenge. This study presents a
-
Response and Damage Characteristics of Segmental Tunnel Lining under Various Dynamic Load Conditions Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-17 Jinling Chai, Ke Wang, Shihao Wang, Yong Wang, Yi Liu
This paper investigates segmental lining, developing a numerical model to explore the dynamic interaction between saturated soil and the lining structure, and analyses the effects of the angle of incident load and the wavelength-to-diameter ratio on the displacement, deformation, and distribution of the plastic zone of the structure. The findings demonstrate that the structure experiences vertical
-
A Semantic Approach to Dynamic Path Planning for Fire Evacuation through BIM and IoT Data Integration Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-17 Bo Pang, Jianyong Shi, Liu Jiang, Zeyu Pan
Fire evacuation path planning involves multiple data sources. In order to develop a dynamic planning, a comprehensive knowledge of the environment involving building information and fire development is required. This article presents a semantic approach that integrates Building Information Modeling (BIM) and Internet of Things (IoT) information to provide a data foundation for dynamic path planning
-
Experimental Study on Mechanical Properties of CFRP-Confined Concrete Columns under Continuous Semi-Submergence of Sulfate Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-15 Mingxi Cai, Lijun Shao, Jiawei Zhang, Kaijin Xu, Jie Zhang, Penggang Li
To investigate the mechanical properties of carbon-fiber-reinforced-polymer (CFRP)-restrained concrete in a saline soil environment, the degradation of the mechanical properties of CFRP-restrained concrete columns under the effect of continuous sulfate semisoak erosion is investigated based on sulfate continuous semisoak erosion, and unrestrained concrete columns with the same specifications are used
-
Compression Mechanical Properties and Constitutive Model for Soft–Hard Interlayered Rock Mass Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-12 Jinhua Li, Yang Yang, Pan Wang, Tianyu Zhang, Peili Su, Songwei Zhao
The properties of soft–hard interbedded rock masses are significantly impacted by the strength of rock layers and the characteristics of interface surfaces. This study investigates the mechanical properties of soft–hard interlayered rock masses by preparing rock-like specimens with different interface angles. Uniaxial and triaxial compression tests were conducted to examine the compression mechanical
-
Performance of Diaphragm Walls during Ultra-Deep Excavations in Karst Areas: Field Monitoring Analysis Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-10 Xingzhong Nong, Yanhong Wang, Benhai Lin, Wentian Xu, Wuzhang Luo, Ren Tang
Deep foundation pit excavations have become more extensive for the construction of underground spaces with rapid urbanization. Diaphragm walls are commonly used to support deep excavations. However, due to the complex geological conditions in karst areas, construction accidents frequently occur during the excavation of foundation pits. This study aims to investigate the performance of diaphragm walls
-
Mechanical Performance Investigation of a Flat-Roof and Four-Slope Folded Plate Structure Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-10 Yan Yang, Meng Zhan, Yanfei Huang
The flat-roof and four-slope folded plate structure is a space thin-walled structure composed of four trapezoidal plates and a rectangular plate parallel to the bottom surface, which is widely used in various engineering applications. In order to clarify the force transmission path and stress distribution law under the action of this structural load, the folded plate structures were made by utilizing
-
Damage Identification of Full-Scale Steel Truss Structure Based on Model Condensation and Mean-Value Normalization Regularization Techniques Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-8 Huihui Chen, Haidong Zhang, Xiaojing Yuan
Structural health monitoring and damage identification aim to detect the internal damage and evaluate the health conditions of the practical engineering structure, which has been the most popular research field for several decades. The sensitivity-based method incorporated with the regularization techniques is the classical and useful approach, and it can obtain accurate damage detection results. However
-
Large Ring Test for Evaluation of Restrained Shrinkage Cracking: Calibration and Experimental Trial Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-5 Zhongyu Xu, Lucija Hanžič, Harry Asche, Jurij Karlovšek
The durability of shotcrete tunnel linings is significantly affected by restrained shrinkage cracking. Given the unique characteristics of shotcrete applied in tunnel linings, especially when dealing with accelerated shotcrete containing reinforcement fibres, it is necessary to upscale the ring test commonly used. This paper presents a comprehensive experiment using large ring tests with cast concrete
-
Mechanical Characteristics of Tailings in Different Depositional Zones: A Case Study of Caijiagou Tailings Pond in Shaanxi, China Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-5 Longfei Zhang, Zaiqiang Hu, Hongru Li, Haicheng She, Qiuxiang Qin, Xiaoliang Wang
This study examines the widespread practice of upstream tailings dam construction in metallurgical mines in China, conducting comprehensive testing and research on tailings from various depositional zones of the Caijiagou tailings pond. Analysis of the test results from three types of tailings reveals a systematic relationship between the mechanical characteristics of tailings and their depositional
-
Mechanical Performance of Tube-Gusset X-Joints Enhanced by Ring Plates Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-4 Xiaolu Li, Zhe Yang, Yan Zhao, Xinwu Wang, Xiaomin Xue, Xueming Wang
This study aims to investigate the effect of the ring plate on the mechanical performance of X-type tube-gusset joints. The failure modes, ultimate strengths, and failure mechanisms of X-joints with ring plates were investigated through experiments and finite element analyses. The results indicated that the ring plate and the chord within the effective range of the ring plate constituted the primary
-
Reverse Model for Curved Bridge Measurement Based on 3D Laser Scanning Technology Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-3 Xin Chen, Lihang Chen, Dong Liang
Receiving inspection plays a crucial role in ensuring construction quality after the completion of engineering projects. Traditional inspection measurement methods, such as manual observation means and optical equipment measurement methods, have limitations in terms of the number of measurement sites and the range of measurements. These traditional methods fail to provide accurate curve parameters
-
Intelligent Algorithm for Rock Core RQD Based on Object Detection and Image Segmentation to Suppress Noise and Vibration Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-4-3 Feng Xiong, Jintao Wang, Guohua Zhang, Xueming Shi, Hong Zheng, Junjie Hu
In the construction of the civil engineering infrastructure, the noise and vibration are affected by the geological conditions, adopting specific construction techniques based on the geological conditions is of great significance in suppressing the noise and vibration caused by the construction. To classify and evaluate the rock mass quality, the rock quality designation (RQD) is adopted widely in
-
Long-Term Performance and Durability of Heat-Treated Alkali-Activated Slag Mortar Containing Silica Fume Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-28 Naser Sameti, Ebrahim Ghiasvand, Ehsanollah Zeighami, Seyyed Mohammad Mirhosseini
This study aimed to investigate the combined influence of heat curing and partial replacement of silica fume on the long-term behavior of alkali-activated slag (AAS) mortar. Silica fume replacement levels of 0%, 5%, and 10% were examined, with curing conducted at temperatures of 23 ± 2 and 80°C. The alkaline activator consisted of sodium hydroxide solution (4 M) mixed with sodium silicate in a 3 : 1
-
Goaf Site Stability Detection in the Overlap Area of Coal Mining Subsidence and Urban Construction Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-27 Guangli Dai, Hongjia Li, Chao Liu, Huaizhan Li, Youwei Chang, Yu Chen, Yandong Gao, Yafei Yuan, Wenqi Huo
The contradiction between coal mining and urban construction in coal resource-based cities is prominent, which greatly limits the sustainable development of these cities. Pan’an New City is a key mining-induced subsidence area in Xuzhou City, which presents significant challenges to the construction of the new city. Therefore, in order to ensure the safe construction of Pan’an New City, the residual
-
Optimal Mix Design and Mechanical Properties of Rapid-Hardening Foam Concrete Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-20 Yuan Liu, Danni Zhao, Ruibo Yin, Qiang Li, Xiong Wu, Xianglong Zeng, Wei Qiao, Jiangbo Xu
This paper conducts compressive strength tests on foam concrete prepared under four factors and three levels through the design of orthogonal experiments. It delves into the phase change rules of the load–displacement curves obtained under various mix proportions. Furthermore, based on the 1-day and 3-day compressive strength values, the study explores different mix proportion results using range analysis
-
Development of a Performance Assessment Model for Contractors in Saudi Arabian Construction Projects Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-19 Ghasan Alfalah, Saad Aldajani, Nehal Elshaboury, Abobakr Al-Sakkaf, Othman Alshamrani
Saudi Arabia leads the Gulf Cooperation Council countries in the construction industry, with 63% of the region’s future projects and $1.4 trillion in building and transportation projects. Previous studies have shown that 60% of construction projects are behind the schedule. One of the reasons behind this delay is the inappropriate selection of contractors for construction projects; therefore, the development
-
Real-Time Quantitative Evaluation on the Longitudinal Slip Performance of Spherical Steel Bearings of Long-Span Bridges Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-15 Shiyang Xu, Xin Zhou, Gaoxin Wang, Youliang Ding
Spherical steel bearings play an important role in the normal longitudinal expansion of the main girders of long-span bridges. With the increase in service time, the wear damage will deteriorate the longitudinal slip performance of spherical steel bearings. In this research, a method of real-time quantitative evaluation on longitudinal slip performance is proposed through monitoring data analysis,
-
Construction Method and Process Optimization of Prestress Reverse Tensioning for Large-Span Bidirectional Suspension Steel Roof Structures Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-14 Wang Yao, Zhang Hao, Zhang Feng, Li Yang, Li Dong, Bao Min
For medium and small-scale steel structure stadiums, in order to minimize the impact of the construction process on the structural state, a prestressing construction process tailored to medium and small stadiums is proposed, taking full advantage of the inherent elastic deformation range of steel structures. The main steps of the process involve the construction of the main truss first. After the main
-
Experimental Study on Dynamic Tensile Mechanical Behavior and Fracture Mechanical Characteristics of Sandstone with a Single Prefabricated Fissure Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-12 Jie-hao Wu, Yu-xiang Du, Chang-bai Wang, Qi Zong
The structural stability of engineering rock mass under dynamic disturbance is directly associated with the fracture mechanics properties in engineering practice. Fully understanding the rock’s fracture mechanical behavior and crack evolution caused by stress concentration at the crack tip in engineering rock mass under dynamic load can offer useful insight into the rock’s dynamic fracture mechanism
-
Study on Mechanical Model for Postpeak Shear Behavior of Rock Joints Based on Degradation Characteristics of the 3D Morphology Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-12 Juan Liu, Feng Gao, Yan Xing, Xianghe Gao
The 3D morphology of the joint surface significantly influences the shear behavior of the jointrock. Constant normal load (CNL) direct shear tests with different shear displacement were conducted to understand the shear stress changing with joint roughness and damage degree during shear. The rough joint specimens were prepared using 3D scanning and printing techniques, and shear tests with different
-
Reasonable Treatment Range of Karst Cave Encountered by Super-Large Diameter Shield Tunnel in Strongly Karst-Developed Area Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-11 Jiang Wang, Jinwen Yang, Xianglin Yan
When a super-large diameter shield tunnel passes through a strongly karst-developed area, in order to ensure the stability of the tunnel and economy of karst reinforcement, the reasonable treatment range for a huge number of karst caves needs to be researched. Based on a karst treatment project of a shield tunnel with a diameter of 14.5 m, this paper studies the influence of intrusive fully filled
-
Durability of Recycled Concrete after Reinforcing the Aggregates with Permeable Crystalline Materials Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-7 Jinsong Liao, Fuhai Li, Jing Gong, Lei Zhao, Xi Tong, Xinxin Li
The utilization of recycled aggregate can significantly mitigate the extraction of natural sand and gravel. However, the practical application of recycled aggregate in engineering is impeded by its inherent characteristics, encompassing high water absorption, high crushing, and low apparent density. This study employed a soaking and air-drying method to enhance the strength of three types of aggregates
-
Research on Hydraulic Fracturing Technology of Long Boreholes along Strata of High Vast Thick Coal Seam Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-6 Chenyang Wang, Shugang Li, Li Liu, Le Liu
Gas extraction is a major technique for regional gas regulation and coal and gas comining in China. Assuring effective gas extraction operations is a crucial step in ensuring the supply of energy. The effect range of extraction drilling, pressure relief degree, and standard period of gas extraction are all constrained because of the geological constraints affecting coal gas permeability and occurrence
-
Comparative Analysis of Shear Strength Prediction Models for Reinforced Concrete Slab–Column Connections Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-6 Sarmed Wahab, Nasim Shakouri Mahmoudabadi, Sarmad Waqas, Nouman Herl, Muhammad Iqbal, Khurshid Alam, Afaq Ahmad
This research focuses on a comprehensive comparative analysis of shear strength prediction in slab–column connections, integrating machine learning, design codes, and finite element analysis (FEA). The existing empirical models lack the influencing parameters that decrease their prediction accuracy. In this paper, current design codes of American Concrete Institute 318-19 (ACI 318-19) and Eurocode
-
Analyzing the Variances in Perspectives on BIM Implementation among Korea AEC Participants Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-5 Min Ho Shin, Seong-Ah Kim
The goals and benefits of implementing building information modeling (BIM) in different facilities are comparable, although there are variations in the employed technologies. Nevertheless, when considering the practical aspects of BIM, the specific variations in implementing BIM across different facilities lack clarity. This study investigated the variations in viewpoints among participants in the
-
Influence of Plate Position on Uplift Failure State and Bearing Capacity of NT-CEP Pile Groups Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-1 Yongmei Qian, Xu Chen, Lin Sun, Xihui Wang, Yang Chen
The previous research results of the research group demonstrated that the plate position is the main factor affecting the uplift bearing capacity of the new type of concrete expanded plate pile (NT-CEP pile) group and the failure state of the soil around the pile. In this study, the visual half-section pile small-scale model of undisturbed soil tension test and ANSYS Finite Element Software comparative
-
Machine Learning Modeling Integrating Experimental Analysis for Predicting Compressive Strength of Concrete Containing Different Industrial Byproducts Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-3-1 Lakshmana Rao Kalabarige, Jayaprakash Sridhar, Sivaramakrishnan Subbaram, Palaniappan Prasath, Ravindran Gobinath
This study aimed to develop accurate models for estimating the compressive strength (CS) of concrete using a combination of experimental testing and different machine learning (ML) approaches: baseline regression models, boosting model, bagging model, tree-based ensemble models, and average voting regression (VR). The research utilized an extensive experimental dataset with 14 input variables, including
-
Research on Flexural Properties and Flexural Toughness Evaluation Method of Steel Fiber Reinforced Cementitious Composites under Polar Low Temperatures Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-29 Farun Shui, Jun Su, Junjie Huang, Yang Li, Weimin Qian
In this research, five groups of steel fiber reinforced cementitious composite (SFRCC) with different fiber volume content (0%, 0.5%, 1.0% 1.5%, and 2.0%) were designed to perform four-point flexural tests on beam specimens to study the effects of polar temperature (20, 0, −25, −50, −75, and −100°C) and fiber volume content on the flexural properties. The flexural toughness index and load holding capacity
-
Feasibility Study of Expanded Clay Aggregate Lightweight Concrete for Nonstructural Applications Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-29 Shayan Ali Khan, Fazal Hussain, Rao Arsalan Khushnood, Hassan Amjad, Farhan Ahmad
In nonstructural infill panels, common materials like expanded polystyrene panels face fire susceptibility, autoclaved aerated concrete (AAC) incurs high production costs, and traditional bricks come with a significant carbon footprint and weight. So, there is a requirement for infill panels that are not just resilient and lightweight but sustainable as well. This study seeks to address these issues
-
Stability Evaluation of the Goaf Based on Combination Weighting and Cloud Model Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-29 Linning Guo, Kepeng Hou, Huafen Sun, Yong Yang
Goaf has become one of the most significant sources of hazard affecting the safety of metal and nonmetal mines. Evaluation of goaf stability is of paramount importance for mine safety production. First, 13 indices such as rock mass structure, geological structure, and goaf volume are selected based on engineering experience and literature review to assess the stability of goaf. These indices are classified
-
Exploring the Potential of Green Microalgae-Based Phycoremediation Treated Wastewater for Sustainable Concrete Production Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-28 T. Q. K. Lam, K. S. Sreekeshava, C. Bhargavi, C. R. Ganesh, N. S. Ambale, T. M. D. Do
Wastewater pollution from domestic, industrial, and agricultural sources threatens the environment and human health. Traditional wastewater treatment methods are energy intensive, generate significant sludge, and may not remove all contaminants. This study explores the use of microalgae, Chlorella sorokinianana, to treat wastewater and evaluates its impact on concrete properties. The research aims
-
Analysis of Dynamic Evolution of Surrounding Rock Movement and Stress-Fracture in the Upward and Repeated Mining of Close-Distance Coal Seams Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-28 Ningbo Peng, Chunlei Zhang, Ruimin Feng, Arifuggaman Arif, Xi Chen, Weidong Zhang, Shuai Zhang, Mingjie Feng
The distribution of mining-induced stress and the resulting rock fractures are two crucial factors affecting mineral extraction in protective layer mining. This research establishes a correlation between the vertical fracture aperture and the second derivative of the rock layer’s subsidence curve equation. The article explores the span requirement for a simply supported beam to fracture. This condition
-
A Wooden Pin Reinforcement of Ancient Chinese Wooden Temple: A Case of Daxiong Hall Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-28 Hua Zhang, Wuping Gao, Yanling Wang
Post and lintel frame is a prominent architectural structure in Chinese temple architecture, characterized by its wooden construction. Mortise–tenon joints (MTJs) serve as the primary connection method for these wooden structures, employing straight mortise nodes (SMNs) and through-mortise joints (TMNs). This study presents a method that utilizes wooden pins to reinforce MTJs, enhancing the seismic
-
Analyzing the Mechanical, Durability, and Microstructural Impact of Partial Cement Replacement with Pumice Powder and Bamboo Leaf Ash in Concrete Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-27 Haris Hassen Adem, Fikreyesus Demeke Cherkos
This study explores the physiomechanical and durability properties of C-25 concrete by partially replacing cement with blends of pumice powder (PP) and bamboo leaf ash (BLA). The combined amount of major oxides SiO2, Al2O3, and Fe2O3 in PP is 84.59%, while in BLA, it is 74.4%, classifying PP and BLA as class N and F pozzolans. Subsequently, the study examines the impact of different cement replacement
-
Research on 3D Measurement and Rapid Location Technique for Assembling the Special-Shaped Structural Segments Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-26 Shilei Wang, Zhangming Wang, Qiankuan Feng
The pylon of the Xinshougang Bridge, a welded steel box arch with a variable cross-section, exhibits asymmetrical design and unevenly inclined limb ends. The segmented assembly of this uniquely shaped steel pylon necessitates precise splicing. In this paper, a novel three-point method for segment attitude positioning is proposed based on the local coordinate system. This method facilitates accurate
-
Assessment of Ultimate Bearing Capacity of Static Loading Pile Based on Cusp Catastrophe Theory Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-26 Jibao Yang, Xing Huang, Hao Ni, Shilong Hao, Fudong Liu, Zhangrong Liu
Determining the ultimate bearing capacity of pile is important for reasonable design of the pile. In this paper, a cusp catastrophe theory-based method was proposed for assessing the ultimate bearing capacity of static loading pile. Firstly, a three-parameter quartic polynomial in accordance with the standard form of cusp catastrophe model is proposed and used to fit the experimentally obtained Q–S
-
Vehicle–Bridge Interaction Dynamic Analysis of Continuous Rigid Frame Composite Box Girder Bridge with Corrugated Steel Webs under Seismic Excitation Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-23 Peng Qiao, Chen Ma, Chang-Jiang Daun, Hao Lei, Heng Zhao, Jun He
To study the vehicle–bridge interaction (VBI) of highway bridges under seismic excitation, a vehicle–bridge couple analysis method based on Ansys is proposed. The 1/2 vehicle model and space beam element model were established to analyze the VBI response of Lanzhou Xiaoshagou bridge. The self-excited excitation of the system is represented by road surface irregularity randomness, while the external
-
A Comparative Study of Seismic Performance Evaluation of Reinforced Concrete Frame Structures Using Chinese and African Seismic Codes Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-22 Musaab Suliman, Liang Lu
The evaluation of various earthquake codes, it is one of the significant challenges in the study area of earthquake engineering. However, according to the literature review, most research works have not addressed comparing Chinese and African seismic codes. Therefore, the purpose of this study is to identify each code’s advantages by comparing assessment of the seismic efficacy of moment resistance
-
The Effect of Excavation Disturbance on the Stability of Bedding Cataclastic Rock Mass High Slope Containing Multimuddy Interlayers Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-21 Fei Liu, Jiaming Zhang, Pengzheng Guo, Wenlian Liu, Zhiqiang Wang, Jipu Chen
In China, slope engineering occasionally faces landslides in rocky slopes containing muddy interlayers, primarily triggered by excavation activities. These incidents lead to considerable human casualties and substantial economic losses. However, existing studies predominantly concentrate on the excavation-induced impacts on the stability of rocky slopes characterized by single-layered soft and weak
-
Study on Nanomaterials Coated Natural Coir Fibers as Crack Arrestor in Cement Composite Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-21 Akshata Musale, Anand M. Hunashyal, Arun Y. Patil, Raman Kumar, Tansir Ahamad, M. A. Kalam, Mahaboob Patel
The process of inclusion of carbon nanotubes as fibers in cement paste has been proved to have optimistic effect as it enhances the tensile property of cement paste composite. Coir fibers have exceptional mechanical qualities and are thus employed as reinforcement in cement composites. Epoxy resin, which has a high Young’s modulus, is an ideal component for bonding carbon nanotubes (CNTs) to coir fiber
-
Landslide Susceptibility Mapping Using GIS and Bivariate Statistical Models in Chemoga Watershed, Ethiopia Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-20 Abinet Addis
This study aimed to map the landslide susceptibility in the Chemoga watershed, Ethiopia, using Geographic Information System (GIS) and bivariate statistical models. Based on Google earth imagery and field survey, about 169 landslide locations were identified and classified randomly into training datasets (70%) and test datasets (30%). Eleven landslides conditioning factors, including slope, elevation
-
Bone Char Adsorption of COD and Colour from Tannery Wastewater: Breakthrough Curve Analysis and Fixed Bed Dynamic Modelling Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-20 Miriam Appiah-Brempong, Helen Michelle Korkor Essandoh, Nana Yaw Asiedu, Francis Yao Momade
This study delves into the simultaneous adsorption of chemical oxygen demand (COD) and colour from tannery wastewater using bone char through a fixed bed column. The bone char, which was derived from cattle skulls, was characterised using the Fourier transform infrared spectroscopy, Braeuer–Emmett–Teller surface area analysis, and the scanning electron microscope/energy-dispersive X-ray spectroscopy
-
Thermal Analysis of Building Roofs with Latent Heat Storage for Reduction in Energy Consumption and CO2 Emissions: An Experimental and Numerical Research Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-19 Erdem Cuce, Saboor Shaik, Abin Roy, Chelliah Arumugam, Asif Afzal, Pinar Mert Cuce, Aritra Ghosh, Tabish Alam, Sharmas Vali Shaik
In green energy buildings, air conditioning charges can be lowered through careful planning of the building’s envelope. This article investigates several strategically designed phase change material (PCM) roof envelopes for savings on air conditioning prices, CO2 emission abatement, and payback timeframes in hot–arid and warm-temperate climates, taking into account unsteady heat transfer characteristics
-
Stability Analysis of Soil and Rock Mixed Slope Based on Random Heterogeneous Structure Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-19 Yafei Wang, Zhanrong Zhang, Xingpei Kang, Hao Xie, Chenchen Wang, Kun Liu
Due to the complexity in the heterogeneous internal structure and interactions between rocks and soil, the slide of soil–rock mixed slope is usually more complex than that of a homogeneous soil slope. This paper investigated the stability of soil–rock mixed slopes with finite element method (FEM) based on random heterogeneous structure. An image-aided approach was used to generate the 2-D and 3-D digital
-
Analysis of Foundation Pit Support Selection and Design Problems in Deep Soft Soil Area Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-17 Mengmeng Zang, Quan Peng, Cuiying Wang
The aim of this study is to address challenges encountered in the design of foundation pit support systems for soft soil areas, which include vague calculation methodologies, insufficiently representative parameters, and limited design engineer experience. To address these issues, we conducted a comprehensive review of successful and failed case studies and observed that actual working conditions significantly
-
Mechanical Strength and Microstructure of Soft Soil Stabilized with Cement, Lime, and Metakaolin-Based Geopolymer Stabilizers Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-16 Tadesse Abebe Wassie, Gökhan Demir
Soft soils require particular consideration when designing civil engineering structures due to their high compressibility, low shear strength, and permeability. Using chemical additives and geopolymers to stabilize soft soils is a practical approach to improve their engineering properties. The objective of the study was to explore the use of conventional stabilizers alongside metakaolin-based geopolymers
-
Effect of Elevated Temperature on Microstructural and Durability Properties of High-Strength Concrete-Containing Eggshell Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-14 Samuel Sisay Asgedom, Bahiru Bewket Mitikie
Researchers have recently discovered that eggshell contains a significant amount of calcium carbonate through the characteristics of both fresh and hardened concrete by partially substituting cement with eggshell powder (ESP) at room temperature. The objective of this experimental investigation was to examine the microstructural and durability characteristics of high-strength concrete exposed to elevated
-
Machine Learning and Statistical Test–Based Culvert Condition Impact Factor Analysis Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-13 Ce Gao, Zhibin Li, Hazem Elzarka, Hongyan Yan, Peijin Li
For managers of road infrastructure, culvert deterioration is a major concern since culvert failures can cause serious risks to the traveling public. The efficiency of the cost- and labor-intensive culvert inspection and maintenance process can be improved by properly identifying the key impact factors on culvert condition deterioration. Although the use of machine learning (ML) techniques to predict
-
Effect of Natural Pozzolana on Physical and Mechanical Properties of Concrete Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-13 Tsion Amsalu Fode, Yusufu Abeid Chande Jande, Thomas Kivevele
Construction industries are rapidly growing, sacking high amounts of concrete which has a highly dense microstructure with excellent mechanical properties, more durable, and highly eco-friendly materials. Hence, many of the researchers are interested in solving this problem with replacing concrete by natural pozzolana (NP) which is a supplementary cementitious material mostly from volcanic sources
-
Slope Stability Analysis of Mounded Storage Tank under Different Compaction Coefficients Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-13 Yunsheng Ma, Zizhuo Tao, Yu Zhang, Zhenxue Liu, Shengke Wei, Fenghao Qing
Mounded storage tank is to cover the storage tank with compacted soil on the ground to avoid steam cloud explosion, ensuring the stability and safety of the storage tank. In view of the influence of large diameter and surface radian of the tank, slope stability of mounded storage tank under different compaction coefficients has become the focus of research. In this paper, a series of laboratory tests
-
Study on Acoustic Emission Characteristics and Damage Evolution Law of Shale under Uniaxial Compression Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-13 Wenjie Wu, Chee-Ming Chan, Yilei Gu, Xiaopeng Su
Investigating the correlation between acoustic emission (AE) parameters and damage mechanisms in rock mechanics can help understand rock damage evolution under loading and provide a theoretical basis for engineering support and safety detection. Therefore, this paper presents experimental works on the correlation between AE and failure mechanisms of rock mass under uniaxial compression stress, with
-
Material Point Method-Based Simulation of Run-Out Characteristics for a Soil–Rock Mixed Landslide Induced by Surcharge Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-8 Yi Zhang, Fan Zhang, Qingbo Yi, Guanzhu Jiang, Juncheng Xie
Surcharge loading on slopes is a prevalent engineering practice that can precipitate landslides, posing significant risks to construction integrity and safety. This study elucidates the impact of surcharge loading on mixed soil–rock slopes and benchmarks their response against that of pure soil slopes under analogous loading conditions. Investigating damage manifestations, this research quantifies
-
Study on the Wind Deviation Characteristics of Y-Type Insulator String under the Action of Strong Wind Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-8 Xianren Wang, Chuiwei Yang, Jiaqian Zhang, Junyu Zhou, Hangzhang Liang, Jing Jiang, Yonghui Cai, Mojia Huang, Zhiwen Lan
Under the action of extreme wind load, the overhead transmission line will generate a wind deflection flashover phenomenon, which seriously affects the normal operation of the transmission system and causes significant losses. Y-type insulator string (hereinafter referred to as Y-string) is an optimized structural form to reduce the wind deflection flashover in windy areas, and the dynamic mechanical
-
Estimating the Climate-Controlled Soil Parameters and the Distorted Mound Shape for Analysis of Stiffened Rafts on Expansive Soils Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-7 Mohamed H. Abu-Ali, Basuony El-Garhy, Ahmed Boraey, Wael S. Al-Rashed, Hassan Abdel-Daiem
A stiffened raft is considered one of the efficient foundation systems for lightweight structures resting on expansive soils. Most existing design methods of stiffened rafts require an analysis of the interaction between the raft and the distorted mound shape of the expansive soil. In most design methods, the distorted mound shape is represented in 2D by the edge distance and the maximum differential
-
Dynamic Properties and Dynamic Response Model of Jointed Granites by Cyclic Loading Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-7 Xiaobin Ding, Junxing Zhao, Yaojun Dong
The present study investigates the dynamic properties of granite samples with varying degrees of defects through triaxial cyclic loading experiments conducted under different conditions, including varied confining pressures, loading frequencies, dynamic stress amplitudes, and number of cycles, and the dynamic response model of granite samples influenced by the confining pressure and frequency are constructed
-
Influence and the Control of Shield Tunneling on Ancient Tower Vibration Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-5 Xu Liang, Jian Xu, Yapeng Zhang, Xinquan Gao, Xuetao Zhou, Zonghao Yuan, Min Zhang, Jian Wu, Long Liu
In recent years, to effectively mitigate the issue of urban traffic congestion, tunnels have become widely used new type of road. However, when the soil layer is excavated and disturbed, the resulting vibration affects the safety of the buildings above it, especially for ancient buildings that are very sensitive to vibrations. Taking the White Tower in Hangzhou as an example, in this paper, the vibration
-
Evaluating the Effect of Cement and ARG Fiber on the Mechanical and Microstructural Properties of Dune Sand Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-2 Faisal I. Shalabi, Javed Mazher, Kaffayatullah Khan, Muhammad Nasir Amin, Mesfer Alqahtani, Hosam Awad, Ali Alghannam, Hussain Albaqshi
Despite its collapsible nature and weakness, desert sand can be used for construction purposes all over the world if properly stabilized. Therefore, the aim of this study is to evaluate the effectiveness of cement and fiber in stabilizing locally available dune sand. A test plan was used to investigate the effects of varying quantities of alkali resistance glass (ARG) fiber (F: 0%, 0.2%, 0.4%, and
-
Microstructure in Adhesion Development Process and Strength Formation Mechanism in Early Stage of Cold Recycled Mixture with Emulsified Asphalt Adv. Civ. Eng. (IF 1.8) Pub Date : 2024-2-1 Xueying Zhao, Baofu Ma
With the large-scale maintenance and renovation of asphalt pavement, a considerable amount of reclaimed asphalt pavement (RAP) will be generated. Stacking these wastes occupies a large amount of land and seriously damages the ecological environment. Hence, efficient regeneration of RAP through recycling technology has gained more and more attention. In this paper, some topics were reviewed to further