The durability of geogrid reinforcement exhumed after 25 years from a sloped wall structure was examined through a comparison of the material properties of exhumed samples with technical data for the original product type. Visual and microscopic inspections found no evidence of installation damage. Analysis of strain increments in rapid loading creep tests to 10 000 h showed excellent agreement between the exhumed and original materials. The results of this study lend confidence in the use of isochronous load–strain–time data for predicting the long-term strain of geosynthetic-reinforced soil structures in design to a serviceability limit state.

中文翻译：

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倾斜加筋土墙土工格栅使用 25 年后的耐久性

通过将挖掘出的样品的材料特性与原始产品类型的技术数据进行比较，检查了从倾斜墙结构中挖掘出来的土工格栅加固的耐久性 25 年后。目视和显微镜检查没有发现安装损坏的证据。对 10 000 小时快速加载蠕变试验中应变增量的分析表明，挖掘出的材料与原始材料之间具有极好的一致性。这项研究的结果为使用等时载荷-应变-时间数据来预测土工合成材料加筋土结构在设计中达到使用极限状态的长期应变提供了信心。