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Tao Qin, Binyang Duan, Yanwei Duan, Yaozu Ni, Xiangang Hou, Pingyun Ma and Yue Yang
After coal mining enters the deep, the mining environment changes dramatically, and engineering disasters become increasingly prominent, which are mostly related to rock instability and failure. As traditional support is difficult to meet production need...
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Zhijun Xu, Chong Li, Yue Cao, Lianhai Tai and Hong Yan
In coal mine roadway support, the arrangement of roadways in areas with high-stress concentrations is a challenging issue. It is crucial to solve this problem in order to ensure the safety and productivity of the mine. In this study, we selected a typica...
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Bowen Wu, Jucai Chang, Chuanming Li, Tuo Wang, Wenbao Shi and Xiangyu Wang
Soft broken surrounding rock exhibits obvious rheological properties and time-dependent weakening effects under the action of deep high-ground stress, leading to the increasingly prominent problem of sustained large deformation in deep roadways. In this ...
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Zhimeng Zhao and Qinghe Wang
Preferential flow is the most common form of water loss occurring at the interface between rock and soil (hereinafter referred to as ?rock?soil interface?) in karst areas, and it is also one of the important factors causing soil water leakage into the un...
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Sensen Song, Shuguang Li, Yanling Liang, Runke Huo, Zhanping Song, Zizhen Miao and Ziyi Song
During the excavation process of a large-span variable cross-section of a tunnel, the deformation and stress characteristics of the surrounding rock supporting the structure are complex, and construction control is difficult. Based on an actual tunnel pr...
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Tianhao Kou, Shuaixin Wen, Wenping Mu, Nengxiong Xu, Zexin Gao, Zhongxiang Lin, Yankui Hao, Weitao Yan and Honglei Liu
The 8006 working face at the Wuyang Coal Mine adopts grout injection into bed separation technology for surface subsidence control. Surface grout leakage occurred during the grout injection into the bed separation process of this working face. Grout leak...
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Yucang Dong, Hai Zhang, Zhengguo Zhu and Yongquan Zhu
The accurate prediction and evaluation of stress and displacement fields of surrounding rock is the fundamental premise for the deformation control of soft rock tunnels under high geo-stress condition. However, due to the complicated mechanical character...
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Zuliang Zhong, Tenglong Tang and Yapeng Li
The mechanical properties of the surrounding rock of the Xigeda stratum are easily affected by water content. In order to obtain the support characteristics of Xigeda strata, the finite difference method was used to obtain the longitudinal deformation of...
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Xiaowu Huang, Jian Guo, Yusong Miao, Xianqi Xie, Yujin Li, Hailiang Wang and Feifei Huang
The surrounding rock during a coal mine excavation is prone to significant engineering disasters such as considerable deformation and rock bursts. Pressure release can improve the stress field of a deep rock mass and prevent the occurrence of dangers suc...
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Dong Ma, Zhongsheng Tan, Linlin Bian, Baojin Zhang and Jinpeng Zhao
In constructing high-geo-stress soft rock tunnels, the major deformation disaster of the surrounding rock has always been the main problem faced during construction. The research on the deformation and loose zone characteristics of large deformation tunn...
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