Results 41 to 50 of about 7,021 (250)

A Testing Apparatus for Gas-Driven Coal and Gas Outbursts and its Application

open access: yesFrontiers in Earth Science, 2022
In this study, a multi-physics coal and gas outburst experimental apparatus is developed to allow investigating the gas-driven mechanism behind the disaster caused by coal and gas outbursts in tectonic regions. The apparatus can simulate the coal and gas
Yunlong Zou   +4 more
doaj   +1 more source

Mechanism and Classification of Coal and Gas Outbursts in China

open access: yesAdvances in Civil Engineering, 2021
Coal and gas outburst is a kind of complex dynamic disaster with short duration and strong explosiveness, and the modes and strength of the outburst are determined by the in situ stress, gas pressure, and physical and mechanical properties of the coal ...
Qi Zhang   +4 more
doaj   +1 more source

Research on coal and gas outburst collaborative prediction technology and its applicatio

open access: yesGong-kuang zidonghua, 2020
In view of problems that existing coal and gas outburst prediction technology is difficult to achieve omnidirectional continuous prediction in the field of time and space,has low utilization rate of anti-outburst prediction results and lag in the release
XU Xuezhan
doaj   +1 more source

Study of the solid–gas–stress coupling model and its application

open access: yesScientific Reports, 2023
Coal mines may change from non-outburst mines into coal and gas outburst mines with increasing mining depth. Therefore, scientific and rapid prediction of the coal seam outburst risk and effective prevention and control measures could ensure coal mine ...
Xianzhi Shi, Dazhao Song
doaj   +1 more source

Experimental investigations of stress‐gas pressure evolution rules of coal and gas outburst: A case study in Dingji coal mine, China

open access: yesEnergy Science & Engineering, 2020
Coal and gas outburst is a potentially fatal risk during the mining of gassy coal seams, which seriously threatens the safe mining of collieries. To understand the outburst mechanism and evolution rules, a new apparatus (LSTT) was developed to conduct ...
Bo Zhao   +5 more
doaj   +1 more source

Effect of Water Invasion on Outburst Predictive Index of Low Rank Coals in Dalong Mine. [PDF]

open access: yesPLoS ONE, 2015
To improve the coal permeability and outburst prevention, coal seam water injection and a series of outburst prevention measures were tested in outburst coal mines.
Jingyu Jiang   +4 more
doaj   +1 more source

Coal and gas outburst mechanism: Research progress and prospect in China over the past 70 years

open access: yes, 2023
The effective prevention and control of coal and gas outbursts have always been a challenge for safe coal mining in China, and their prerequisite and basis are in-depth research on the coal and gas outburst mechanism.
Zhonghui, LI   +6 more
core   +1 more source

A Gas Monitoring and Control System in a Coal and Gas Outburst Laboratory [PDF]

open access: yesJournal of Sensors, 2014
Coal and gas outburst is a phenomenon characterized by the ejection of gas and coal from the solid face of a mine. Physical minioutburst experiments are a very important tool for analyzing outbursts of coal and gas. However, few reports have focused on the safety problem produced by gas concentration or the role of gas spread during the physical ...
Wen Nie, Y. Liu, C. J. Li, J. Xu
openaire   +2 more sources

Development and application of simulation experimental system for impact dynamic effect and disaster-causing characteristics of coal and gas outburst

open access: yesMeitan xuebao, 2023
As the disaster-causing characteristics of coal and gas outburst and the mechanism of induced mine airflow disaster are not clear, the facilities such as air door and self-rescue system are often arranged on site according to miner’s experience, thus it ...
Xuelin YANG   +6 more
doaj   +1 more source

ABOUT THE PRE-OUTBURST STATE OF THE COAL AND SANDSTONE AND THE POSSIBLE MECHANISM OF COAL AND GAS OUTBURST PROCESS

open access: yesМінеральні ресурси України, 2018
The paper aims to examine the suitability of A. S. Balankin brittle fracture criterion in predicting the of large-scale coal and gas outbursts in underground coal mines under compression load. Formation of dissipative structures as cracks and clusters of local microcracking occurs under the influence of the rock pressure.
Yu. I. Voitenko, А. V. Kovtun
openaire   +2 more sources

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