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Engineering rock structures containing joints and fissures are frequently subjected to discontinuous periodic disturbances of varying amplitudes.
Yuanmin Wang +5 more
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Mechanical behavior of granite residual soil during wetting considering effects of initial unloading
The unloading caused by slope excavation may affect soil behavior during the subsequent rainfall-induced wetting. However, the previous wetting tests do not greatly consider this fact.
SHU Rong-jun 1, 2, KONG Ling-wei 1, 2, WANG Jun-tao 1, 2, JIAN Tao 1, 2, ZHOU Zhen-hua 1, 2
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Shear behavior of saturated silt under complex unloading paths
The excavation of foundation pit engineering has different unloading effects on the surrounding soil. The existing specifications mainly use the consolidated undrained strength index based on the conventional triaxial tests, which cannot describe the ...
YING Xu 1, LI Min 1, XIA Baihui 2, SHEN Nanjie 2, JIANG Gang 2, ZHONG Jianfeng 3
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For the rock burst disaster problems caused by unloading disturbance of deep roadway excavation, the study on the deformation and fracture mechanism of roadway surrounding rock under different unloading conditions was carried out.
Xiaochun XIAO +4 more
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It is important to determine the volumetric change properties of hydrate reservoirs in the process of exploitation. The Skempton pore pressure coefficient A can characterize the process of volume change of hydrate-bearing sediments under undrained ...
Ruchun Wei +3 more
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Granite residual soil is one of the most frequently encountered problem soils in tropical regions, whose mechanical behavior heavily depends on the pattern of variation of mean effective stress (p’) during shearing, which can be classified into three ...
Rongjun Shu +3 more
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Shear behavior of coarse aggregates for dam construction under varied stress paths
Coarse aggregates are the major infrastructure materials of concrete-faced rock-fill dams and are consolidated to bear upper and lateral loads. With the increase of dam height, high confining pressure and complex stress states complicate the shear ...
Liu Hanlong, Deng An, Shen Yang
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Discussion on several problems in design of retaining structures of deep excavation
Based on the laboratory tests on excavation stress paths and field test data, some problems in the design of the supporting structures of foundation pits are analyzed.
SHENG Zhi-qiang 1, 2, 3, 4, TENG Yan-jing 3, 4, LI Ping 3, 4
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Strength Properties of Saturated Sand-Structure Interface by Triaxial Test Method
A novel test method for analyzing the influence of stress path and roughness of structure on the strength characteristics of saturated sand-structure interface by using triaxial apparatus is presented. By making a triaxial specimen with a slope structure
LIU Shiao, LIAO Chencong, CHEN Jinjian, YE Guanlin, XIA Xiaohe
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The critical damage value of rock is an important parameter of stability analysis when engineering rock mass. Based on the previous single test method, this paper, combined with the deformation characteristics of rock residual phase under different ...
Hua Li +10 more
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