Results 181 to 190 of about 324,854 (212)

Microscopic damage field in coal induced by water jets

Journal of Loss Prevention in the Process Industries, 2018
Abstract This paper uses experiments and simulations to investigate the fragmentation process of coal subjected to water jets. The experiments are conducted using computed tomography (CT) and digital image processing technology to reconstruct the damage field of an impacted coal core, and a numerical model is established based on the arbitrary ...
Yongzhi Xue, Hu Si, Zili Yang, Dayang Xu
openaire   +1 more source

Damage to underground coal mines caused by surface blasting

International Journal of Surface Mining, Reclamation and Environment, 1993
ABSTRACT An investigation of the potential damage to underground coal workings as a result of surface blasting is described. Seismometers were installed in a worked out area of an underground mine, and the vibrations caused by nearby surface blasting recorded. These measurements were used to derive peak particle velocities.
A.B. Fourie, R.W. Green
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Damage characteristics of pulverized coal under different gas pressures in coal and gas outbursts

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2022
Yilin Wang, Chengwu Li, Min Hao, Heng Zhang, Xiaoqi Sun   +4 more
openaire   +1 more source

Quantitative Analysis on Damaged Coal in Three Dimensions

Rock Mechanics and Its Applications in Civil, Mining, and Petroleum Engineering, 2014
Lingtao Mao, Lina Hao, Ridong Peng, Jianchen Xu   +3 more
openaire   +1 more source

Mechanical damage mechanism of frozen coal subjected to liquid nitrogen freezing

Fuel, 2022
Lei Qin
exaly  

Experimental study on mechanical and damage characteristics of coal under true triaxial cyclic disturbance

Engineering Geology, 2021
Minke Duan
exaly  

Creep damage characteristics and constitutive model of pre-damage coal

Engineering Failure Analysis
Jinshuai Guo, Deyuan Zong, Liqiang Ma
openaire   +1 more source

Effect of coal thicknesses on energy evolution characteristics of roof rock-coal-floor rock sandwich composite structure and its damage constitutive model

Composites Part B: Engineering, 2020
Yunliang Tan, Xuesheng Liu
exaly  

Damage evolution analysis and gas–solid coupling model for coal containing gas

Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2021
Feng Du
exaly  

Effects of coal damage on permeability and gas drainage performance

International Journal of Mining Science and Technology, 2017
Chunshan Zheng, Mehmet Kizil, Zhongwei Chen   +2 more
exaly