Results 31 to 40 of about 33,130 (261)

New Technology of Pressure Relief Control in Soft Coal Roadways with Deep, Violent Mining and Large Deformation: A Key Study

Energies, 2022
Previous studies have shown that the influence of deep dynamic pressure on the surrounding rock control of a coal roadway is one of the difficulties in mine roadway support.
Shengrong Xie, Hui Li, Dongdong Chen, Shaohua Feng, Xiang Ma, Zaisheng Jiang, Junqi Cui   +6 more
doaj   +1 more source

Damage evolution and failure warning in early-age flexible-formwork concrete for underground support

Geohazard Mechanics
The evolution law of mechanical properties and damage characteristics of early-age flexible formwork filling concrete have a decisive influence on the stability control of surrounding rock of large deformation roadway.
Zijun Han, Hongtao Liu, Xiaofei Guo, Jialu Liang, Zhongjin Qiao, Chenxiao Cao, Lei Guo, Xiaogang Chen   +7 more
doaj   +1 more source

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
doaj   +1 more source

Mechanism of rock burst in deep coal tunnel surroundings due to three-way stress difference gradient

Meitan xuebao, 2023
With the deep coal tunnel surrounding rock as the research object, in view of the serious rock burst hazards, incomplete rock burst mechanism research, and the lack of more targeted guidance on the prevention and control of rock burst engineering, indoor
Guolei LIU, Zedong WANG, Yu CUI, Qiufeng MA, Lei YAN, Yuzhong HAN   +5 more
doaj   +1 more source

Research progress of support theory and technology of the roadway surrounding rock based on the plastic zone control

Meitan xuebao
With the increasing depth of coal mining, the stability control of surrounding rock in deep roadway has become one of major problems in the mining field, and the effect of surrounding rock control in deep roadway is directly related to the safe ...
Weijun WANG, Lei FAN, Zhiqiang ZHAO, Sen HAN   +3 more
doaj   +1 more source

Deformation mechanism and optimum supporting structures in fault-bearing biased tunnels

Zhongguo dizhi zaihai yu fangzhi xuebao
To explore the deformation mechanisms of tunnel surrounding rock under complex geological conditions and develop appropriate technologies for controlling surrounding rock deformation, this study analyzes the deformation of surrounding rock at the mouth ...
Xiaolong LIU, Chuang SUN, Hui WANG, Weiming ZHANG, Xingxuan ZHENG, Yiting WANG   +5 more
doaj   +1 more source

Research on failure mechanism and control measures of surrounding rock in large section raise shaft construction chamber

Meikuang Anquan, 2022
Aiming at the problem of serious deformation and failure of large section chamber surrounding rock, taking the large section reverse shaft construction chamber of Lijiahao Mine as the research background, using the research methods of numerical ...
LI Jianhua, XIE Fuxing, CHEN Kai, JING Guoye, WANG Yongfeng, ZHOU Ming   +5 more
doaj   +1 more source

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

Molecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary, Jose Javier Bravo‐Cordero   +1 more
wiley   +1 more source

Principle and technology of step strengthening control of soft rock argillization roadway in coal mine

Meitan xuebao
The sedimentary rock strata of the coal measure are generally characterised by significant argillity, high water content and weak lithology. The problem of controlling the stability of the surrounding rock in soft rock argillation roadways has become ...
Guichen LI, Haoran HAO, Yuantian SUN, Jinghua LI, Sen YANG, Zeyu SHAO, Xiaofang WO   +6 more
doaj   +1 more source

Coordinated control technology for anti-impact pressure relief of mining roadway and large deformation of surrounding rock

Meikuang Anquan, 2023
The mining roadway under complex conditions was taken as the project background in No.3305 working face of Yiqiao Coal Mine, and the research on the coordinated control was carried out for anti-impact pressure relief and surrounding rock deformation on ...
GU Shitan, CHEN Changpeng, HAN Chuanlei, RONG Weitao
doaj   +1 more source