Results 21 to 30 of about 16,431 (261)

Research on the “three shells” cooperative support technology of large-section chambers in deep mines

International Journal of Mining Science and Technology, 2021
The “three shells” cooperative support technology was proposed herein according to both the large deformation of the rock surrounding large-section chambers in deep mines and the precarious stability of the support structures therein.
Cheng Zhu, Yong Yuan, Wenmiao Wang, Zhongshun Chen, Shengzhi Wang, Huiwei Zhong   +5 more
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Research on the stability control of surrounding rock in the roadway with dynamic pressure and high slope

Gong-kuang zidonghua, 2021
The roadway with dynamic pressure and high slope refers to the roadway which is seriously affected by dynamic pressure and has a high slope. This type of roadway not only experiences disturbances in the excavation process, but also has to experience the ...
SHEN Binxue, YUAN Chaofeng, GU Wenzhe, LIU Zhicheng, SONG Tianqi, PAN Hao   +5 more
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Study on Classification of Stability of Surrounding Rock Using Entropy Weight Method and Multi-dimensional Cloud Model

Meikuang Anquan, 2020
Aiming at the uncertainty and fuzziness of the factors affecting the stability of surrounding rock, based on the cloud model, a stability evaluation model considering various geological and hydrological factors is established based on the entropy weight ...
FANG Shisheng, TIAN Haitao, HUANG Dezhou, LIU Weinan
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Study on the Stability of Surrounding Rock of Underground Circular Cavern Based on the Anchor Reinforcement Effect

Advances in Civil Engineering, 2018
Achieving a comprehensive and accurate understanding of the anchor reinforcement mechanism and a quantitative evaluation of the surrounding rock’s stability for an anchored underground cavern can provide an important theoretical basis for supporting and ...
Shuancheng Gu, Pan Zhou, Wei Sun, Chunhui Hu, Zhi Li, Chao Wang   +5 more
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Study on classification and support of surrounding rock of mining roadway in extremely close coal seams

矿业科学学报, 2020
In order to explore the stability category and support mode of surrounding rock of mining roadway in extremely close coal seams, the stability category of surrounding rock is determined by comprehensive evaluation with mathematical method.Firstly, the ...
Li Xiaobin, He Fulian, Qin Binbin, Lü Kai, He Wenrui   +4 more
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Constant-Resistance, Rigid, and Flexible Coupling Support Technology for Soft Rock Entrances in Deep Coal Mines:A Case Study in China

Advances in Materials Science and Engineering, 2020
The stability control of a soft rock roadway is a crucial problem for sustainable utilization of limited coal resources in deep mining practices. To solve it, the soft rock types and failure mechanism of −890 entrance surrounding rock have been analyzed,
Yong Zhang, Chengwei Zhao, Ming Jiang, Jiaxuan Zhang, Chen Chen, Xiaoyu Zheng, Xiaoming Sun, Huichen Xu   +7 more
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Comprehensive safety evaluation method of surrounding rock during underground cavern construction

Underground Space, 2021
The deformation instability of surrounding rock and the collapse of rock blocks are two common failure modes observed during the construction of underground caverns.
Qingwen Ren, Lei Xu, Aixi Zhu, Mingzhang Shan, Linfei Zhang, Jiafeng Gu, Lei Shen   +6 more
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Surrounding Rock Stability Identification Model Based on PCA-RVM

Meikuang Anquan, 2020
The stability of tunnel surrounding rock is affected by many factors, and there are complex nonlinear relationships among various influencing factors. In order to accurately determine the surrounding rock stability category, five factors including rock ...
ZHANG Yan, ZENG Jianbin, JING Xiaoqing, DENG Xueqin
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Rockburst hazard assessment and prevention and control strategies in the Ruihai gold mine

Frontiers in Earth Science
Ruihai gold mine is a super large underwater gold mine with an initial mining depth of more than 1,400 m. Deep mining may face rockburst disaster. In order to scientifically control the potential rockburst risk, ensure the safety of underground personnel
Pengxiang Li, Pengxiang Li, Zongwen Wang, Bingrui Chen, Bingrui Chen, Jianping Peng, Bochao Zhang, Jinshuai Zhao, Houlin Xie   +8 more
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A Real-Time Inverted Velocity Model for Fault Detection in Deep-Buried Hard Rock Tunnels Based on a Microseismic Monitoring System

Buildings
Microseismic monitoring is an effective and widely used technology for dynamic fault disaster early warning and prevention in deep-buried hard rock tunnels.
Houlin Xie, Bingrui Chen, Qian Liu, Yaxun Xiao, Liu Liu, Xinhao Zhu, Pengxiang Li   +6 more
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