Shear Behavior of Reinforced Geosynthetic Clay Liners
Shear Behavior of Reinforced Geosynthetic Clay Liners
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DOI：
10.1680/gein.3.0084
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发表时间：
1996
影响因子：
4.5
通讯作者：
T. Stark;H. Eid
中科院分区：
文献类型：
--
作者：
T. Stark;H. Eid
通过环剪试验，评价了膨润土对土工膜与增强土工合成粘土衬垫（GCL）界面抗剪强度的影响，以及增强GCL内部剪切性能的影响。试验得出的界面抗剪强度与美国俄亥俄州辛辛那提市美国环境保护署GCL试验段的两个变形试验台的反计算抗剪强度值一致。环剪试验表明，增强玻璃钢的内抗剪强度取决于以下两个因素：(1)抗增强纤维拔出和/或撕裂；(2)膨润土的抗剪强度。室内试验表明，纤维阻力是主要的内抗剪强度因素。建议的剪切率，应用于增强玻璃钢内部剪切试验。
Ring shear tests were performed to evaluate the effect of bentonite on the interface shear strength between a geomembrane and a reinforced geosynthetic clay liner (GCL), and the internal shear behavior of reinforced GCLs. The tests yielded an interface shear strength that is in agreement with the back-calculated shear strength values from two test pads that deformed at the U.S. Environmental Protection Agency GCL Test Section in Cincinnati, Ohio, USA. The ring shear tests showed that the internal shear strength of reinforced GCLs depends on the following two factors: (i) resistance against reinforcing fiber pull-out and/or tearing; and, (ii) shear strength of bentonite. The laboratory tests indicate that fiber resistance is the predominant internal shear strength factor. Recommendations are presented for the rate of shear that should be used for internal shear testing of reinforced GCLs.