Results 1 to 10 of about 479,142 (302)

Study on roadway layout and surrounding rock control of isolated island panel. [PDF]

Sci Rep, 2023
AbstractDuring the re-mining of historical residual coal resources, the stress environment is complex, the surrounding rock conditions are bad, the mining roadway is significantly affected by ground pressure, the layout is difficult, and the safety is poor.
Shi L, Zhang J, Lu W, Lv D, Sun X.
europepmc   +4 more sources

Research on Surrounding Rock Control Technology of Dongbaowei Deep Mining Roadway [PDF]

Advances in Civil Engineering, 2021
In order to explore the stability control of surrounding rock in the process of deep mining, comparative analysis of stress, deformation, and fracture characteristics of surrounding rock of deep and shallow mining roadway in dongbaotou coal mine ...
Chengjia Wu, Tao Qin, Lei Wang, Zhi Liu
doaj   +2 more sources

Study on overburden rock structure characteristics and surrounding rock control technology of island working face. [PDF]

Sci Rep
Based on the background of ZF2822 island working face in Xiagou Coal Mine, the characteristics of overburden fracture structure and surrounding rock control technology of island working face are explored by means of theoretical analysis, numerical simulation and field measurement.
Haoyu Z, Xingping L, Hao Q, Pengfei S, Wenlin W, Wenhua Y, Longquan W, Chong J.   +7 more
europepmc   +5 more sources

Large Section of Soft Rock Gob-Side Entry Retaining Surrounding Rock Control

Advances in Civil Engineering
When cutting roof and pressure relief, the impact of blasting is especially obvious on the integrity of the roof of a large-section soft-rock roadway.
Xizhi Wang, Yongjian Zhu, Ping Wang, Heng Ren, Peng Li, Xianwen He, Jianhua Lv   +6 more
doaj   +3 more sources

Control techniques for creep deformation of surrounding rock in deep underground roadways. [PDF]

PLoS One
As resource extraction extends to greater depths, surrounding rock in deep underground roadways exhibits pronounced creep deformation due to the coupled effects of high in-situ stress and time-dependent behavior. Conventional support systems face significant challenges in maintaining long-term stability under such conditions.
Ge L, Liu D, Tao J, Zhang Z, Lei H, Zhao Y.   +5 more
europepmc   +2 more sources

Deformation Mechanism and Surrounding Rock Control in High‐Stress Soft Rock Roadway: A Case Study [PDF]

Advances in Civil Engineering, 2021
Stability control for soft and broken surrounding rock of roadways is one important segment of mining support. Taking 1412 Roadway of a mine in Guizhou province as a research background, this paper studies the large deformation of surrounding rock and the failure of bolts and cables.
Yuwen Gao, Chen Wang, Yong Liu, Yuyang Wang, Lianchang Han   +4 more
openaire   +2 more sources

Study on failure characteristics and control of soft rock roadway floor

Meitan kexue jishu, 2023
In order to study the regularity of floor heave deformation and instability of soft rock roadway under different horizontal stress boundary conditions, the return air roadway of 50213 working face of Guantun Coal Mine was taken as the engineering ...
ZHANG Jie, GAO Shoushi, LI Tong, HUANG Xiaoping, YANG Tao, WANG Zhanghui, HE Yifeng, HAN Jinbo   +7 more
doaj   +1 more source

Technology path and assumptions of intelligent surrounding rock control at longwall working face

矿业科学学报, 2022
The intelligent surrounding rock control at longwall working face is the necessary condition to realize the intelligent mining of working face. This paper redefined the connotation of the surrounding rock system at longwall working face and clarified the
Yang Shengli, Wang Jiachen, Li Ming
doaj   +1 more source

Stability Control Mechanism of High‐Stress Roadway Surrounding Rock by Roof Fracturing and Rock Mass Filling [PDF]

Advances in Civil Engineering, 2021
Large deformation of roadway and coal bump failures have always been the focus in deep underground engineering. By considering the Lu’an mining district in China, the failure mode and stability improvement process of high‐stress roadways were analysed with the field tests and numerical simulations.
Fuzhou Qi, Zhanguo Ma, Dangwei Yang, Ning Li, Bin Li, Zhiliu Wang, Weixia Ma   +6 more
openaire   +2 more sources

Mechanical mechanism of large deformation and support control for jointed thin soft rock tunnel in Southwest China

矿业科学学报, 2023
This study analyzes the large deformation failure mode and mechanical mechanism of tunnel surrounding rock, with an aim to lessen the damage of high ground stress soft rock tunnel support structure and large deformation of surrounding rock in southwest ...
Tao Zhigang, Li Mengnan, Zhang Bo, Li Huiru, Shi Guangcheng   +4 more
doaj   +1 more source