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Soil/Geosynthetic Interface Strengths from Torsional Ring Shear Tests

机译：扭环剪切试验的土壤/土工合成界面强度

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Torsional ring shear tests were conducted to investigate Soil/Geosynthetic Interface Strengths of various geomembranes. A selection of seven smooth and three textured geomembranes (10 total) that can be factory fabricated were sheared against two soils to investigate the range of soil/geosynthetic interface strengths. The two soils are: (1) a clayey glacial till; and (2) Ottawa fine sand. Smooth PVC and both smooth and textured HDPE geomembranes were also tested so the fabricated geomembrane interface strengths could be compared to previously published interface strengths and commonly used geomembranes. The effect of texturing and material properties on shear strength and soil interaction are presented herein and compared with existing interface strength values. To facilitate the testing, programmable video cameras were used as a data acquisition system.
机译：进行了扭转环剪切试验，以研究各种土工膜的土壤/土工合成材料界面强度。将可以工厂制造的七个光滑的和三个带纹理的土工膜（总共10个）的选择剪裁在两种土壤上，以研究土壤/土工合成材料界面强度的范围。这两种土壤是：（1）黏性冰川土; （2）渥太华细砂。还对光滑的PVC以及光滑的和有纹理的HDPE土工膜进行了测试，因此可以将预制的土工膜界面强度与以前发布的界面强度和常用的土工膜进行比较。本文介绍了纹理和材料特性对剪切强度和土壤相互作用的影响，并将其与现有的界面强度值进行了比较。为了便于测试，可编程摄像机被用作数据采集系统。

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