Study on the Influence and Control of Stress Direction Deflection and Partial-Stress Boosting of Main Roadways Surrounding Rock and under the Influence of Multi-Seam Mining
被引:9
作者:
Chen, Dongdong
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Chen, Dongdong
[1
]
Guo, Fangfang
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Guo, Fangfang
[1
]
Li, Zijian
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Li, Zijian
[1
]
Ma, Xiang
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Ma, Xiang
[1
]
Xie, Shengrong
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Xie, Shengrong
[1
]
Wu, Yiyi
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Wu, Yiyi
[1
]
Wang, Zhiqiang
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Wang, Zhiqiang
[1
]
机构:
[1] China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
main roadway group;
mining-induced stress;
surrounding rock stability;
ground control;
deflection of principal stress;
COAL-MINE;
FAILURE;
PILLAR;
D O I:
10.3390/en15218257
中图分类号:
TE [石油、天然气工业];
TK [能源与动力工程];
学科分类号:
0807 ;
0820 ;
摘要:
A large coal pillar (usually more than 90 m) is generally left in place to ensure the stability of main roadway groups, due to its long service lifespan, which commonly also causes a significant loss of coal resources. The design of the width of the protective coal pillar and the control system of the surrounding rock are directly determined by the characteristics of the stress field and the damage mechanism under the influence of the mining activities. However, there are few studies on the effects of the partial-stress boosting and the direction deflection of the stress field on the failure evolution of the surrounding rock (especially in multi-seam mining). In this paper, theoretical analysis and numerical simulation are used to investigate the direction evolution of the maximum principal stress in front of the working face with malposition distances between the upper and lower working faces during the influence of double coal seams mining. Furthermore, a large-scale numerical model is used to study the deviatoric stress evolution of the surrounding rock and the propagation process of the plastic zone in the main roadway group with different widths of protective coal pillars. Then, an asymmetric cooperative anchoring classification method is proposed to strengthen the roadway support, depending on the critical area of the deviatoric stress in the roadway surrounding rock. The peak zone deflection of the deviatoric stress determines the evolution direction of the plastic area, and the peak value of the deviatoric stress presents a typical asymmetric stress boosting on both sides of the roadway. These findings are validated by the on-site ground pressure monitoring results and the practical failure modes of the surrounding rock.
机构:
Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
Cao, Junwen
Zhang, Wenqiang
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Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
Zhang, Wenqiang
Li, Yifeng
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Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
Li, Yifeng
Zhao, Chenhuan
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Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
Zhao, Chenhuan
Zheng, Yun
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Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
Zheng, Yun
Yu, Bo
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h-index: 0
机构:
Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Chen, Dongdong
Guo, Fangfang
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Guo, Fangfang
Xie, Shengrong
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h-index: 0
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Xie, Shengrong
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机构:
Wang, En
Wu, Yiyi
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Wu, Yiyi
Jiang, Zaisheng
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Jiang, Zaisheng
Wang, Long
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h-index: 0
机构:
China Univ Min & Technol Beijing, Sch Emergency Management & Safety Engn, Beijing, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Wang, Long
Cui, Junqi
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Cui, Junqi
Zhang, Xiao
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China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Zhang, Xiao
Liu, Ruipeng
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China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Chen, Dongdong
Wu, Yiyi
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Wu, Yiyi
Xie, Shengrong
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Xie, Shengrong
Guo, Fangfang
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Guo, Fangfang
He, Fulian
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China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
He, Fulian
Liu, Ruipeng
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
机构:
Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
Cao, Junwen
Zhang, Wenqiang
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
Zhang, Wenqiang
Li, Yifeng
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
Li, Yifeng
Zhao, Chenhuan
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
Zhao, Chenhuan
Zheng, Yun
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h-index: 0
机构:
Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
Zheng, Yun
Yu, Bo
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Chen, Dongdong
Guo, Fangfang
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Guo, Fangfang
Xie, Shengrong
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h-index: 0
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Xie, Shengrong
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h-index:
机构:
Wang, En
Wu, Yiyi
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Wu, Yiyi
Jiang, Zaisheng
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h-index: 0
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Jiang, Zaisheng
Wang, Long
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Min & Technol Beijing, Sch Emergency Management & Safety Engn, Beijing, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Wang, Long
Cui, Junqi
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h-index: 0
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Cui, Junqi
Zhang, Xiao
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Zhang, Xiao
Liu, Ruipeng
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Chen, Dongdong
Wu, Yiyi
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Wu, Yiyi
Xie, Shengrong
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Xie, Shengrong
Guo, Fangfang
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
Guo, Fangfang
He, Fulian
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机构:
China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China
He, Fulian
Liu, Ruipeng
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China Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R ChinaChina Univ Min & Technol Beijing, Sch Energy & Min Engn, Beijing 100083, Peoples R China