Results 51 to 60 of about 3,136 (215)

Mechanism and Application of Layered Grouting Reinforcement for Fractured Coal and Rock Roadway

Applied Sciences, 2023
This paper takes the ZF3806 working face of Shuiliandong Coal Mine in Binxian County, Shaanxi Province as the engineering background. Aiming at the problems of the development of surrounding rock cracks and roof breakage encountered in the process of ...
Ze Liao, Tao Feng
doaj   +1 more source

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

Deep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li, Huiyong Yin, Fangying Dong, Tao Wu, Chao Zhang   +4 more
wiley   +1 more source

Quantitative Assessment of Rock Burst Risk in Roadway Tunneling Considering Variation of Coal Mass Parameters

Applied Sciences
To investigate the influence of varied mechanical parameters of coal mass on rock burst occurrence during deep roadway tunneling, the surrounding coal and rock mass of a deep roadway were taken as the research objects.
Yu Yang, Ning Li
doaj   +1 more source

Research on Deformation and Failure Evolution of Deep Rock Burst Drivage Roadway Surrounding Rock under Dynamic Disturbance

Shock and Vibration, 2021
In order to explore the deformation and failure evolution characteristics of the surrounding rock during the connection process of the deep rock burst drivage roadway under the dynamic load disturbance, and based on this, the catastrophe mechanism of the
Xinggang Xu, Hao Feng, Lishuai Jiang, Tao Guo, Xingyu Wu, Zequan Sun   +5 more
doaj   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Mining dynamic stress evolution law and surrounding rock control technology of high stress soft rock roadway in Libi Coal Mine

Meikuang Anquan
In order to solve the problem of deep high stress argillaceous soft rock floor drainage roadway affected by mining disturbance, taking the layout optimization and surrounding rock control of deep argillaceous soft rock floor drainage roadway in Libi Coal
Liangshan LI, Deyu QIAN, Sen HUANG, Hailin CHEN, Biao XUE, Nachuan CHAI   +5 more
doaj   +1 more source

Upper bound limit analysis of coral reef limestone cavern roof stability incorporating a tension‐shear failure mechanism with tensile‐strength cut‐off

Deep Underground Science and Engineering, EarlyView.
For the roof of coral reef limestone caverns, a novel tension‐shear composite failure mechanism was developed. The most critical tensile crack model was identified using a hybrid optimization algorithm, and the stability of the cavern roof was analyzed accordingly.
Dongsheng Xu, Chenxu Li, Chuantan Hou
wiley   +1 more source

Study on influence of advanced deep-hole blasting pre-splitting roof on stability of gob side entry retaining

矿业科学学报, 2019
In order to smoothly implement gob-side entry retaining and mining without coal pillar in 3207 working face of Nanyang Coal Mine,Shanxi Province,this paper proposes to carry out advanced deep-hole blasting pre-splitting roof near gob side supporting wall.
Hu Tao, Hou Gongyu, Li Zixiang, Li Zhuhe, Xie Bingbing, Chen Jianpeng, Cui Yongke   +6 more
doaj   +1 more source

Investigation on the failure evolution characteristics of surrounding rock in deep cross‐fault roadway: Based on physical model test and numerical simulation

Deep Underground Science and Engineering, EarlyView.
This study reveals the failure evolution characteristics of deep cross‐fault roadway surrounding rock under excavation support and periodic weighting. Periodic weighting readily induces fault activation, with the spatial distribution of failed rock masses being controlled by the fault strike and dip.
Tiezhu Li, Suping Peng, Jing Zheng, Zhanhua Yang, Qijun Tian   +4 more
wiley   +1 more source

Numerical Simulation of Coupling Support for High-Stress Fractured Soft Rock Roadway in Deep Mine

Advances in Civil Engineering, 2022
Aiming at the difficulties during the support of high-stress fractured soft rock roadway in deep mine, a comprehensive surrounding rock management method of bolt-net-cable-grout coupling support is proposed and the mechanism of interaction between ...
Wenhua Yuan, Ke Hong, Run Liu, Lianjie Ji, Long Meng   +4 more
doaj   +1 more source