Results 41 to 50 of about 479,142 (302)

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

open access: yesMeitan 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   +5 more
doaj   +1 more source

Prediction of the lifespan of cement at a specific depth based on the coupling of geomechanical and geochemical processes for CO2 storage [PDF]

open access: yes, 2019
The injection of carbon dioxide (CO2) captured from combustion-based processes into underground formations is one of a number of plausible methods to reduce its release into the atmosphere and consequential greenhouse gas warming.
Bagheri, Mohammadreza   +2 more
core   +1 more source

Stress concentrations around voids in three dimensions : The roots of failure [PDF]

open access: yes, 2017
Funding This work forms part of a NERC New Investigator award for DH (NE/I001743/1), which is gratefully acknowledged. Acknowledgments The authors would like to acknowledge the reviewers, Elizabeth Ritz and Phillip Resor.
Bubeck, A.   +3 more
core   +1 more source

Research on the stability control of surrounding rock in the roadway with dynamic pressure and high slope

open access: yesGong-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   +5 more
doaj   +1 more source

Research on Rock Burst Control Mechanism of Deep Buried Tunnel Using Surrounding Rock Modification Theory

open access: yesShock and Vibration, 2022
In order to solve the rock burst disaster during the excavation of deep buried high stress hard rock tunnel, the method of changing the properties of surrounding rock by blasting is proposed in this paper. This method can effectively change the physical and mechanical properties of surrounding rock, reduce the storage capacity of surrounding rock ...
Yanhua Sun, Xiaohu Zhang, Hanhua Xu
openaire   +2 more sources

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

open access: yesMeitan 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   +3 more
doaj   +1 more source

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

open access: yesMeikuang 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   +5 more
doaj   +1 more source

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

open access: yesZhongguo 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   +5 more
doaj   +1 more source

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

open access: yesMeikuang 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

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