Results 81 to 90 of about 823 (175)

Modeling and Simulation of Deformation Mechanism of Soft Rock Roadway considering the Mine Water

Geofluids, 2020
The existence of coal mine water has an important influence on the instability of soft rock roadway in mining engineering. Considering the effect of mine water, a case study on the fracture mechanism and control technology of soft rock roadway was ...
Yanlong Chen, Qiang Li, Hai Pu, Peng Wu, Liang Chen, Deyu Qian, Xuyang Shi, Kai Zhang, Xianbiao Mao   +8 more
doaj   +1 more source

Pressure relief and control technology for gob-side roadway in soft and thick coal seam in kilometer-deep coal mine

Meikuang Anquan
In order to solve the control problems of deformation and failure in soft and thick coal seam in kilometer-deep coal mine, the gob-side roadway in deep loose and weak thick coal seam is taken as the object. Based on on-site investigation and measurement,
Wenwei MA, Wenxu LIANG
doaj   +1 more source

Study on instability mechanism of soft rock roadway and pressure-relief bolt-grouting support technology. [PDF]

Sci Rep, 2023
Yang T, Liu J, Luo J, Shen Y, Fu P.
europepmc   +1 more source

Creep deformation characteristics and control technology in deep mine soft rock roadway

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
In order to control the strong ageing creep and large deformation of deep soft rock roadway effectively, with the 61–71 track on the uphill of the mining area in Suzhou, Anhui as the research background, the triaxial creep test of mudstone was conducted ...
Lianghuan Yan, Jucai Chang, Wenbao Shi, Tuo Wang, Longquan Qiao, Yijun Guo, Hongda Wang   +6 more
doaj   +1 more source

Fracture distribution and deformation mechanism of surrounding rock in two-way extremely unequal pressure soft rock roadway

Meitan xuebao
The failure of butterfly plastic zone in roadway surrounding rock is an important reason for the large deformation of roadway surrounding rock. In recent years, it has attracted the attention of roadway support workers.
Weijun WANG, Yujie MA, Lei FAN, Chao YUAN, Hai WU, Xinyu TIAN   +5 more
doaj   +1 more source

Elastoplastic analysis on deformation and failure characteristics of surrounding rock of soft-coal roadway based on true triaxial loading and unloading tests

Scientific Reports
Since accidents such as roof caving, rock fragmentation, and severe deformation are particularly likely to occur during roadway excavation in soft and thick coal seams, grasping the range and distribution of deformation and fracturing of surrounding rock
Chongyang Jiang, Lianguo Wang, Jiaxing Guo, Shuai Wang   +3 more
doaj   +1 more source

Research on Secondary Support Time of Soft Rock Roadway

Proceedings of the 8th Russian-Chinese Symposium "Coal in the 21st Century: Mining, Processing, Safety", 2016
Vladimir Pershin, Song Weijie, Qiao Weiguo, Wu Duohua   +3 more
openaire   +1 more source

Instability mechanism and control technology of soft rock roadways affected by mining in karst mountain area

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
The deformation and damage of soft rock roadways in karst mountainous area is serious, which greatly restricts the safe and efficient mining of coal resources.
Zhenqian Ma, Hanghang Zheng, Dongyue Zhang, Lang Zhou, Juncai Cao, Xuchao Liang, Chuan Chen   +6 more
doaj   +1 more source

Intermediate Principal Stress Effect on Failure Characteristics of Surrounding Rock in Soft Rock Roadway

Meikuang Anquan, 2020
In order to study the influence mechanism of intermediate principal stress on surrounding rock deformation of soft rock roadway, taking the soft rock transportation lane of II1053 working face of Zhuxianzhuang Mine in Huaibei Mining Area as the engineering background, based on ground stress in situ measurement, a numerical calculation model of ...
openaire   +1 more source

Study on floor large deformation and failure mechanism of water-rich soft rock roadway. [PDF]

Sci Rep
Li L, Zhang Y, Zhou R, Qi K, Zhang Y, Li Q.   +5 more
europepmc   +1 more source