Results 91 to 100 of about 12,296 (207)

Simulation and control of coal and gas outburst induced by dynamic and static loads

Meikuang Anquan
In order to study the effects of multi factor coupling on micro-cracks, stress changes, outburst velocity, and outburst distance during coal and gas outbursts, including geostress, gas pressure, and dynamic disturbances, based on the particle method, we ...
Pu LI, Xinliang FANG, Zhiqi GUO, Huaiguang GUO, Peng WEN   +4 more
doaj   +1 more source

Experimental Study on Adsorption Pore Structure and Gas Migration of Coal Reservoir Using Low-Field Nuclear Magnetic Resonance

Advances in Civil Engineering, 2020
For the quantitative recognition and characterization of the flow characteristics of polymorphism coalbed gas in tectonic coal, experiments on pore morphology, pore diameter distribution, and methane adsorption law in outburst tectonic coal were carried ...
Jiazhuo Li, Penghui Guo, Wenhao Xie, Jiaqi Chu, Zhiqiang Yin, Anying Yuan, Ming Zhang, Zhenhua Jiao   +7 more
doaj   +1 more source

National economic and environmental development study: the case of Pakistan [PDF]

Pakistan is a developing country bracing for significant economic growth and development in the future. In this regards, the country is poised to shift towards an increased reliance upon its indigenous coal reserves to fuel its development in the 2010 ...
Ahmed, Vaqar, Malik, Amin Aslam Khan, Munawwar, Zuhair, Pervaiz, Amir, Ramay, Shakeel   +4 more
core   +1 more source

On Gas Seepage Regularity in Different Structural Bituminous Coal and Its Influence on Outburst-Coal Breaking

Applied Sciences
Coal and gas outburst remains a critical and persistent challenge in coal extraction, posing a profound threat for mine safety. The underlying mechanisms of such disaster, particularly the gas-driven coal fragmentation, continue to elude comprehensive ...
Jie Zheng, Linfan Chen, Gun Huang, Jun Wang, Weile Geng   +4 more
doaj   +1 more source

Gas-driven rapid fracture propagation and gas outbursts under unloading conditions in coal seams [PDF]

, 2018
Copyright © 2018 ARMA, American Rock Mechanics Association. Coal and gas outbursts have long posed a serious risk to safe and efficient production in coal mines.
Cao, W, Durucan, S, Korre, A, Shi, JQ, Si, G   +4 more
core  

Alarm methods of coal and gas outburst

Gong-kuang zidonghua, 2014
Colliery gas accidents in recent 10 years were analyzed, and numbers of accidents and deaths accounted for 62.3% and 66.5% respectively. The placement methods of coal and gas outburst alarm sensors of methane, wind speed, wind direction were put forward.
openaire   +1 more source

Current Status of Research on the Coal and Gas Outburst Control Technology of Hydration and Anhydrous. [PDF]

ACS Omega, 2023
Zhang J, Wang L, Chen X.
europepmc   +1 more source

Investigation on Fires in Coal Mines and Approach for Prevention – Case Study [PDF]

, 2013
Coal absorbs oxygen even at lower temperatures than the ambient temperature and they start heating up. This heating without any external source of supply of heat generally leads to due to auto-oxidation, also called spontaneous heating of coal.Due to ...
Bisoyi , Sunil Kumar, Parashar, Siddhartha Basudeb   +1 more
core  

Research of regression analysis of coal and gas outburst risk and gas emission characteristic value on mining face

Gong-kuang zidonghua, 2015
Relationship of coal and gas outburst risk and gas emission characteristic value on mining face was analyzed. Through taking the average and maximum amount of gas emission and data slope of gas concentration of fallen coal as gas emission characteristic ...
QU Shijia
doaj   +1 more source

A novel combined intelligent algorithm prediction model for the risk of the coal and gas outburst. [PDF]

Sci Rep, 2023
Wang Z, Xu J, Ma J, Cai Z.
europepmc   +1 more source