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Yujing Jiang, Baocheng Li, Changsheng Wang, Hengjie Luan, Sunhao Zhang, Qinglin Shan and Xianzhen Cheng
To study the shear deformation and failure characteristics of a wellbore and the interaction mechanism with its surrounding rocks induced by a layer slip during natural gas hydrates (NGHs) extraction, this paper conducted a numerical simulation study of ...
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Yujing Jiang, Xinpeng Li, Changsheng Wang, Hengjie Luan, Sunhao Zhang, Gang Wang and Pu Wang
Understanding the asperity damage behaviors of joints during shearing is critical for evaluating the stability of deep underground engineering structures. In this paper, we prepared plaster joints and used them for direct shear tests under different norm...
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Yujing Jiang, Meng Li, Hengjie Luan, Yichen Shi, Sunhao Zhang, Peng Yan and Baocheng Li
Under the action of dynamic loadings such as earthquakes and volcanic activities, the mechanical properties of gas-hydrate-bearing sediments will deteriorate, leading to a decrease in the stability of hydrate reservoirs and even inducing geological disas...
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Hongyu Ye, Xuezhen Wu, Gaoqiang Guo, Dayong Li and Yujing Jiang
Natural gas hydrate (NGH) dissociation is a heat-absorbing process, and the cooling around the wellhead is more pronounced during depressurization production. Low temperature will cause NGH regeneration or ice formation, blocking gas flow paths and reduc...
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Meng Li, Hengjie Luan, Yujing Jiang, Sunhao Zhang, Qinglin Shan, Wei Liang and Xianzhuang Ma
In order to study the macro-meso shear mechanical characteristics of natural gas hydrate-bearing sediments, the direct shear simulations of natural gas hydrate-bearing sediment specimens with different saturations under different normal stress boundary c...
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Xuezhen Wu, Yujing Jiang, Jianhua Wang, Kusaba Masaya, Tetsuya Taniguchi and Takahide Yamato
The stability assessment of aged tunnel linings are mainly evaluated based on the visual inspection, and the Tunnel-lining Crack Index (TCI) is one of the most widely used tunnel lining health assessment indexes in Japan. However, the intersection and di...
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