Results 31 to 40 of about 181,923 (295)

Experimental Study on Rheological Disturbance Effect of Gas-Bearing Coal Rock

open access: yes, 2021
Abstract In view of the dynamic phenomenon that coal and rock are susceptible to external impact disturbance in the mining process, combined with the rheological hypothesis mechanism of coal and gas outburst, the RLSS-II type triaxial loading creep test system of gas-containing coal and rock developed by ourselves is used to carry out the ...
Bo Wang   +6 more
openaire   +1 more source

Study on the perception and alarm method of coal mine rock burst and coal and gas outburst

open access: yesGong-kuang zidonghua, 2022
The paper puts forward a perception and alarm method of rock burst and coal and gas outburst based on temperature. The infrared thermal imager is used to monitor the temperature of objects, and the methane sensor is used to monitor the concentration of ...
SUN Jiping, CHENG Jijie
doaj   +1 more source

Study on Mechanical Characteristics of Deformation and the Failure of Gas-Containing Coal in the Wuhai Mining Area of China under Different Gas Pressure Conditions

open access: yesApplied Sciences, 2022
The mechanical properties of gas-containing coal and rock mass play important roles in controlling the occurrence and development of coal and gas outbursts. The gradual increase in mining depth will change the failure mechanism of gas-containing coal and
Yejiao Liu   +5 more
doaj   +1 more source

Coal-rock gas accumulation mechanism and the whole petroleum system of coal measures

open access: yesPetroleum Exploration and Development
Guoxin LI   +4 more
openaire   +3 more sources

Evolution of cracks in selvedge of the coal bed during its stationary working [PDF]

open access: yes, 2017
Purpose. To study rupturing of the coal/rock seam selvedge by natural gas-filled cracks as phenomena that prepare and initiate sudden outbursts of coal, rock, and gas during the steady movement of the face. Methods.
Chesnokova, O, Feldman, E, Kalugina, N
core   +1 more source

METHOD OF DETERMINING THE RESIDUAL GAS COMPONENT OF COAL-ROCK MASS DONBASS

open access: yesUkrainian Geologist, 2013
Method of determining the residual gas component to determine the rock mass zones most suitable for gas and mining areas unsafe coal seams. Definitions of gas-saturated zones and the potential unintended releases in rock mass is carried out for changes in quality and quantity of gas.   
A. Radzivill, N. Vergelska, M. Sobolev
openaire   +4 more sources

Integrated analysis of geofiltrational parameters in the context of underground coal gasification relying upon calculations and modeling [PDF]

open access: yes, 2018
Objective of the paper is to substantiate and implement the integrated approach aimed at the studies of filtration and mass-transfer processes within roof rocks of coal seams in the context of their underground ...
Dereviahina, Nataliia   +7 more
core   +1 more source

Energy Efficiency and Economic Aspects of Mining Wastes Utilization within the Closed Cycle of Underground Gas Generator [PDF]

open access: yes, 2017
Energy efficiency of coal gasification with possible utilization of mining wastes within ecologically closed gas generator cycle has been considered.
CABANA, Edgar Cáceres   +3 more
core   +1 more source

The Properties of a Coal Body and Prediction of Compound Coal-Rock Dynamic Disasters

open access: yesShock and Vibration, 2020
Since the precise identification and prediction and early warning of compound coal-rock dynamic disaster remain difficult, a new coal characterisation and prediction method for compound coal-rock dynamic disasters was described based on theoretical ...
Guowei Dong, Xuanming Liang, Zhen Wang
doaj   +1 more source

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