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Qingmeng Yuan, Liang Kong, Qianyong Liang, Jinqiang Liang, Lin Yang, Yifei Dong, Zhigang Wang and Xuemin Wu
Clarifying the mechanical characteristics of gas hydrate-bearing sediments (GHBS) from a mechanical perspective is crucial for ensuring the long-term, safe, and efficient extraction of natural gas hydrates. In this study, seabed soft clay from the northe...
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Yangbing Cao, Qiang Yan, Sui Zhang and Fuming Cai
Shale is a common rock type that is associated with underground engineering projects, and several important factors, such as bedding structure, confining pressure, and the loading and unloading path, significantly influence the anisotropy of shale. Triax...
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Kun Zhang, Pengbo Chang, Jianxi Ren, Zheng Liu and Ke Wang
The fractured rock mass in the western cold region is affected by freezing and thawing disasters and is prone to local damage and fracture along the fissures? ends. The fatigue damage induced by repeated frost heave and traffic loads seriously endangers ...
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Hongjun Li, Baoyun Zhao, Zhengjun Hou and Hongyao Min
The foundations of bridges and other tall buildings are often subjected to cyclic loads. Therefore, it is essential to investigate the mechanical properties of rock?concrete composite foundations under cyclic loads. In this paper, uniaxial cyclic loading...
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Tao An, Dong Wang and Xiurong Yang
Gassy clays containing large, discrete gas bubbles are widely spread in deposits in shallow waters. The existence of gas bubbles may impair the original soil structure, resulting in the instability of offshore foundations and the occurrence of submarine ...
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Zhuliang Zhu, Bin Lin and Shiwei Chen
This study is primarily intended to present a damage constitutive equation under the combined action of confining pressures and freeze?thaw cycles by subjecting deep expansive clay to the consolidated undrained triaxial tests. We study the influence of t...
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Lu Li, Meng Zang, Rongtang Zhang and Haijun Lu
Consolidated undrained triaxial shear tests were performed on undisturbed saturated structured clay at three unloading rates (0.1, 0.25, and 2.5 kPa/min) using a GDS triaxial system to determine the effects of different unloading rates and unloading stre...
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Yanli Wang, Jiajun Pan, Hailong Zhang, Song Zhou and Han Xu
The study of the end constraint effect is very useful for improving the precision of triaxial tests.
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Ruchun Wei, Lele Liu, Chao Jia, Xiao Dong, Qingtao Bu, Yongchao Zhang, Changling Liu and Nengyou Wu
Changes in undrained shear strength are important to the stability analysis of hydrate reservoirs during natural gas hydrate production. This study proposes a prediction model of undrained shear strength of hydrate-bearing fine-grained sediments based on...
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Ziyu Wang, Xiangyu Zhao, Xin Chen, Peng Cao, Liang Cao and Wenjing Chen
To improve the mechanical properties of calcareous sand, it is proposed that microbial induced calcium carbonate precipitation (MICP) technology be used. A series of solidification tests were conducted in natural seawater and freshwater environments. The...
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