Results 161 to 167 of about 1,488 (167)

Dust migration law in the “Y” ventilation pattern of the roof cutting and pressure relief goaf

Physics of Fluids
This study delves into the dust migration patterns under the “Y” type ventilation system in coal mine top-coal caving faces to address the increasingly severe underground dust concentration issues. By establishing a mathematical model for the motion of gas–solid two-phase flow and employing numerical simulation methods, the study reveals the uneven ...
Yibo Li, Xiangjun Chen, Xiangyang Ye, Lin Li, Peiqi Zuo, Yue Zhang   +5 more
openaire   +1 more source

Stress and deformation evolution characteristics of gob-side entry retained by roof cutting and pressure relief

Tunnelling and Underground Space Technology, 2022
Yajun Wang, Qi Wang, Xichun Tian, Haosen Wang, Jun Yang, Manchao He   +5 more
openaire   +1 more source

The mechanism and application of a new method for roof cutting and pressure relief with dense drilling

Journal of Central South University
Qiang Fu, Jun Yang, Yu-bing Gao, Chang-jiang Li, Yu-xuan Liu, Han-ze Jiang, Jian-lin Zhou, Xing Wu   +7 more
openaire   +1 more source

Pressure Relief by Blasting Roof Cutting in Close Seam Group Mining under Thick Sandstone to Enhance Gas Extraction for Mining Safety

Processes, 2021
Chi-Min Shu, Kui Gao, Shu Chi-Min
exaly  

Mechanism and Application of Roof Cutting Pressure Relief Filling Gob-Side Entry Retention in Deep Hard Roof Working Face

Applied Geophysics
Yong-jia Xu, Kun-peng Ding, Jian-le Zhang, Wen Wang   +3 more
openaire   +1 more source

Mechanism and validation of pressure relief and energy reduction of automatically formed roadway by roof cutting in deep coal mines

Bulletin of Engineering Geology and the Environment
Haojie Xue, Bei Jiang, Manchao He, Chong Zhang, Yetai Wang, Shu Zhang, Yusong Deng   +6 more
openaire   +1 more source

Experiment research on the control method of automatically retained entry by roof cutting pressure relief within thick hard main roof longwall top coal caving panel

Engineering Failure Analysis
Jian Jiang, Jiong Wang, Haosen Wang
exaly