Results 151 to 160 of about 823 (175)

The Mechanical Mechanism of Hulking Force Stable Principle of Surrounding Rocks in Soft Rock Roadway

Advanced Materials Research, 2014
This paper aims to reveal the important role of the hulking force in stabilizing the roadway. After introducing the three ultimate strength of the foundation rock upon, starting from the perspective of stress state, the article on the deformation area surrounding rock for a more reasonable division, and thus gives the main factors roadway deformation ...
Wei Pei Xue, Lai Wang Jing
openaire   +1 more source

Application of GRNN in Time Series Prediction for Deformation of Surrounding Rocks in Soft Rock Roadway

2011 Fourth International Conference on Intelligent Computation Technology and Automation, 2011
During soft rock roadway construction, the deformation of surrounding rocks is a significant factor in stability evaluation. However, the deformation still has long duration, obvious nonlinear effect after the soft rock roadway construction accomplishment. Certainly, this potential stability change will make the maintenance cost increased in the future.
Sun Yu, Zhang Hongzhen, Chang Yanna
openaire   +1 more source

Surrounding Rock Deformation Properties and Control Technique for Roadway along Goaf in Soft Rock

Advanced Materials Research, 2014
Deformation of roadway driving along goaf was very serious during mining in Qidong coal Mine.This paper took the roadway as the engineering background, firstly, numerical simulation of the roadway has been made by FLAC3D,then its surrounding rock deformation properties and stress distribution were analyzed,the reinforcement technology was proposed ...
Ming Yang, Xin Zhu Hua, Deng Hong Chen
openaire   +1 more source

Research and Exploration on Combined Support Technology in Deep Soft-Rock Roadway

Advanced Materials Research, 2012
Because of the existence of high stress in the surrounding rock of deep roadway, the physical and mechanical properties of the surrounding rock to change, and the surrounding rock stress distribution is very different from the shallow, so the way of shallow roadway support is not suitable for deep roadway.
Lian Wei Ren, Guang Yong Wang, Long Wang
openaire   +1 more source

The Application of Bolt-Mesh-Anchor Combined Support in Soft Rock Roadway

Advanced Materials Research, 2012
soft rock; parameter; bolt-mesh-anchor support; ground pressure.
Guang Hong Wang, Zhen Wang
openaire   +1 more source

Performance Analysis of Soft Roadway Surrounding Rock in Yushujing Coal Mine

Geotechnical and Geological Engineering, 2019
There are soft rock layers in Yushujing coal mine, especially the roof-floor lithology of 11,501 working face shows the characteristics as soft rock, resulting in the drift floor-heave and failure of bolt in the process of coal extraction, which affects safe and efficient mining.
Liu Xinjie, Zhanbo Cheng, Dai Jin
openaire   +1 more source

Numerical study on the deformation and failure of soft rock roadway induced by humidity diffusion

Tunnelling and Underground Space Technology, 2022
Wang Gang, Yuyong Jiao, Chengzeng Yan
exaly  

Maintenance of roadways in soft rocks by destress blasting of roadway-rib (in Chinese)

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1995
openaire   +1 more source

Study on Failure Law of Deformation and Instability of Surrounding Rock in Deep Soft Rock Roadway

2021 7th Annual International Conference on Network and Information Systems for Computers (ICNISC), 2021
Lei Shao, Heyong Yuan, Xinfeng Wang, Wengang Liu, Qiao Zhang   +4 more
openaire   +1 more source

A case study on the deformation and failure mechanism of a soft rock mining roadway in the Xin'Shang'Hai No. 1 coal mine, China

Engineering Failure Analysis, 2023
Tingchun Li, Binxu Wang, Jinlin Ran
exaly