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Shear Strength Characteristics Of Unsaturated Rubber Silt Mixtures, En-Quan Zhou, Yuan Yao, Lei Cui, Long Wang
Shear Strength Characteristics Of Unsaturated Rubber Silt Mixtures, En-Quan Zhou, Yuan Yao, Lei Cui, Long Wang
Rock and Soil Mechanics
To study the shear strength characteristics of unsaturated rubber silt mixtures, a series of direct shear tests was conducted on the rubber silt mixtures with different rubber particle contents and water contents. Based on the particle contact state theory, the meso contact mode of rubber silt mixtures was constructed, and the calculation method of rubber silt mixtures skeleton void ratio based on different rubber content was obtained. The test results show that the shear strength of rubber silt mixtures decreases with the increase of skeleton void ratio at a low water content, while the strength of rubber silt mixtures increases …
An Improved Shear Strength Model Of Unsaturated Soils Over A Wide Suction Range, Yu-Xin Zhao, Xu Li, Sen Lin, Xiao-Meng Wang
An Improved Shear Strength Model Of Unsaturated Soils Over A Wide Suction Range, Yu-Xin Zhao, Xu Li, Sen Lin, Xiao-Meng Wang
Rock and Soil Mechanics
Different types of unsaturated soils are widespread in nature. Due to the differences in grain size and mineral composition, the shear strength characteristics of the unsaturated soils are significantly different over a wide suction range. In order to establish a unified model for predicting the shear strength of different soil types over a wide suction range, a systematic investigation was carried out to examine the effect of soil type on the shear strength of unsaturated soils. An improved shear strength model is proposed based on the advantages of two traditional equations. The proposed model is verified by comparing the published …
Experimental Research On The Shear Characteristics Of The Composite Liner Consisting Of Wrinkled Geomembrane And Needle Punched Geosynthetic Clay Liner, Hai Lin, Yi-Fan Zeng, Chuang-Bing Zhou, Ping-Xiao Dong, Jian-Yong Shi
Experimental Research On The Shear Characteristics Of The Composite Liner Consisting Of Wrinkled Geomembrane And Needle Punched Geosynthetic Clay Liner, Hai Lin, Yi-Fan Zeng, Chuang-Bing Zhou, Ping-Xiao Dong, Jian-Yong Shi
Rock and Soil Mechanics
Wrinkles in geomembrane are common among anti-seepage engineering. However, the wrinkling effect has been neglected in most of the current studies on the interface shear properties of geomembrane. The composite liner consisting of a textured geomembrane (GM) and a needle punched geosynthetic clay liner (GCL) was taken as the research object, and the hydration deformation tests confirmed that the two-step hydration method was effective in accelerating the hydration of the wrinkled GM+GCL composite liner. The shear properties of the wrinkled GM+GCL composite liner was studied by a large-scale temperature-controlled submerged direct shear apparatus. The shear characteristic of the wrinkled GM+GCL …