Laboratory testing of long-term performance of clay-geogrid interaction

机译：黏土与土工格栅相互作用长期性能的实验室测试

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Pullout tests are often conducted to evaluate soil-to-geogrid interaction properties in design. Most of these tests have used static loads with cohesionless soils to assess stress distribution along the soil-geogrid interface as well as pullout resistance. In this work, laboratory pullout tests were carried out to study the long-term performance of a polymeric geogrid embedded in a cohesive soil. Incremental long-term static or cyclic tensile pulling loads were applied to the embedded geogrid under various confining pressures. Some in-isolation creep tests were conducted to compare the long-term effects of confinement. Under dynamic loading conditions, different frequencies of tensile load were applied. Strain progress and creep development were measured. The testing method and results are presented and discussed in details.

机译：通常在设计中进行拉力测试以评估土与土之间的相互作用特性。这些测试大多数都使用无粘性土的静态载荷来评估沿土-土纲界面的应力分布以及抗拔力。在这项工作中，进行了实验室拉拔测试，以研究嵌入粘性土壤中的聚合物土工格栅的长期性能。在各种限制压力下，对嵌入式土工格栅施加增量的长期静态或周期性拉伸拉力。进行了一些隔离蠕变测试，以比较约束的长期影响。在动态载荷条件下，施加了不同频率的拉伸载荷。测量应变进度和蠕变发展。测试方法和结果进行了详细介绍和讨论。

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来源
《International Symposium on Earth Reinforcement Nov 14-16, 2001, Fukuoka/Kyushu/Japan》|2001年|p.121-126|共6页
会议地点 Fukuoka(JP)
作者
A. Pamuk; D. Leshchinsky; V.N. Kaliakin; H.I. Ling;
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Department of Civil Engineering, Rensselaer Polytechnic Institute, USA;

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原文格式 PDF
正文语种 eng
中图分类 P6;
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Laboratory testing of long-term performance of clay-geogrid interaction

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