Results 21 to 30 of about 1,604,914 (120)

Study on Deformation and Failure Laws of Surrounding Rock in Layered Rock Roadway by Discrete Element Method

Meikuang Anquan, 2020
In order to study the deformation and failure laws of roadway surrounding rock under the condition of layered rock, the one orbit lane of Shandong Yuncheng Coal Mine was taken as the research background, and PFC2D discrete element software was adopted ...
WANG Huifeng, SONG Libing
doaj   +2 more sources

Surrounding rock support technology of extra thick coal seam roadway under the influence of mining

Meikuang Anquan, 2021
In view of the difficulty of surrounding rock support in the extra thick coal seam roadway affected by twice mining in Suancigou Coal Mine, the deformation and failure law of surrounding rock in the extra thick coal seam roadway under the influence of ...
LYU Kun
doaj   +2 more sources

Study on the in-situ modified support method of roadway surrounding rock under vertical impact load

Scientific Reports
With the deepening of coal mining, the frequency and intensity of rock burst accidents are increasing. According to incomplete statistics, there have been over 200 rock burst accidents in tunnels in China alone from 2005 to 2024, resulting in more than ...
Heng Zhang, Su Liu, HaiYang Yi, Juntong Liu, Yan Qin, Yuqian Li, Yan Dong, Yong Cao, Fangchao Lu, Shaoshuai Guo, Tie Li, Yan Liu   +11 more
doaj   +2 more sources

Simplified mechanical model of roadway surrounding rock.

, 2022
Simplified mechanical model of roadway surrounding rock.
Kexin Bai (11993756), Donggui Mao (11993753), Yuejin Zhou (11037204), Leiming Zhang (564088), Chunlin Zeng (11993750)   +4 more
core   +1 more source

Determination of Narrow Coal Pillar Width and Roadway Surrounding Rock Support Technology in Gob Driving Roadway

, 2022
In order to determine the rational width of coal pillars and study the surrounding rock control technology of gob side entry driving with a narrow coal pillar, this paper first calculates the width of narrow coal pillar according to limit equilibrium ...
Qingliang Chang, Mengda Li, Haibin Wang, Yizhe Wang, Fengfeng Wu, Shiguo Ge, Xianyuan Shi, Yesong Sun   +7 more
core   +1 more source

Energy Evolution Law during Failure Process of Coal–Rock Combination and Roadway Surrounding Rock

, 2022
The deformation and failure of a coal–rock system in a deep environment is affected by its own mechanical properties, natural endowments, and geological structures; it is very important to study the energy evolution law of coal–rock systems ...
Tongbin Zhao, Dongxiao Zhang, Weiyao Guo, Yongqiang Zhao, Xiufeng Zhang, Yang Chen   +5 more
core   +1 more source

Complex function solution for deformation and failure mechanism of inclined coal seam roadway

Scientific Reports, 2022
The stressed environment of the inclined coal seam roadway is complex and changeable, and the damage degree of surrounding rock increases, threatening the safe mining of coal mines.
Xianyu Xiong, Jun Dai, Chen Xinnian, Yibo Ouyang   +3 more
doaj   +1 more source

Study on Mechanical Characteristics of Rock Surrounding the Roadway under Different Section Shapes

, 2022
In order to understand the instability characteristics of surrounding rock during deep roadway excavation, the influence of different section shapes on the stability of surrounding rock was systematically analyzed. Four sections of roadway with circular,
Zheng Li, Fei Liu, Tao Li
core   +1 more source

Composite grouting reinforcement technology for deep roadway surrounding rock

, 2022
The single grouting method and grouting material can not achieve an ideal grouting effect under the complex geological conditions of deep roadway surrounding rock.
YUE Yanpeng, SUN Zhiyong, WANG Tao, FU Yukai   +3 more
core   +1 more source

Extension characteristics of the “Butterfly-shaped” plastic zone and stability control of deep mining roadway in Xingdong mine

矿业科学学报, 2017
The distribution of plastic zone of surrounding rock in deep mining roadway is the key to control the stability of surrounding rock. Taking the deep mining roadway of Xingdong Mine as the research background, according to the "butterfly-shaped" plastic ...
Li Yongen, Guo Xiaofei, Ma Ji, Huo Tianhong, Zhang Hong   +4 more
doaj   +1 more source