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Research on fractal characteristics and energy dissipation law in the process of coal fragmentation
WANG Ning, LI Shugang, WANG Shibin, ZHANG Tianjun, GUO Yi
2021, 52(4): 1-6.
Abstract
Research on differences of adsorbed water characteristics of low rank and high rank coals based on water vapor adsorption model
YANG Yapu, CHEN Mingyi, TIAN Fuchao, WANG Zhenyang, TIAN Siao, FANG Rongya
2021, 52(4): 7-12.
Abstract
Numerical simulation study on distribution law of respirable dust concentration and its relationship with turbulence intensity in fully mechanized mining face
XIANG Xiaogang, SUN Shaowei, ZHAO Meicheng, DENG Xiaoliang, LI Peng, XU Rui
2021, 52(4): 13-19.
Abstract
Prediction of gas emission from landing coal during driving based on gas desorption law
ZHANG Yu, HAO Fuchang
2021, 52(4): 20-24,30.
Abstract
Mechanism of rock burst in deep double pillar roadway
ZHANG Zhenjin, DU Taotao
2021, 52(4): 25-30.
Abstract
Research on influence of pore structure connectivity of low gas permeability on coal seam permeability
YAN Min, ZHANG Binbin, LI Jinliang, ZHANG Kunyin, ZHOU Ming, YAN Dongjie
2021, 52(4): 31-38.
Abstract
Variation of physicochemical parameters of coal during low temperature oxidation under different oxygen concentrations
YANG Dejin, YANG Shengqiang, JI Guangrui, ZHAO Jianming, WANG Jibin
2021, 52(4): 39-44.
Abstract
Effect of loading mode and impact velocity on crack propagation of coal
FAN Guowei, SUN Zhuang, SHANG Junning
2021, 52(4): 45-51.
Abstract
Mechanism of top-connection & dam-break for plugging hydrodynamic pathway by aggregate pouring method
MOU Lin
2021, 52(4): 52-59.
Abstract
Study on failure mode of surrounding rock in longwall face of steep coal seam
ZHAO Bin, ZHAO Shankun, LI Lianghui, WANG Yin, ZHAO Yang
2021, 52(4): 60-65.
Abstract
Experimental study on determination of resistivity of coal mine paste filling material
WANG Chao, JIAN Yong, ZHANG Yanxu, SI Peitian
2021, 52(4): 66-71.
Abstract
Experimental optimization of concentration ratio of buffering acid used for removing plugging of coal seam
XUE Lei, ZHU Jianguo, GUO Chaofeng, NI Xiaoming, LI Yang, CAO Yunxing
2021, 52(4): 72-77.
Abstract
Study on the influence of drilling fluid filtration on stability of coalbed wellbore
ZHANG Yi, CHEN Dong, ZHANG Hui, LIU Mengmeng, LIU Fu, WEI Kai
2021, 52(4): 78-84.
Abstract
Study on response characteristics of bolt bit drilling into sandstone
SHI Wenbao, ZHOU Wei, LI Zhenfu, PENG Xingqiu
2021, 52(4): 85-88.
Abstract
Study on application of integrated mining mode of “mining, selection, drainage, filling and mining”
DENG Wuxian, DAI Zhixu
2021, 52(4): 89-93.
Abstract
Coal seam gas control technology in working face with low content and high gas emission
ZHANG Dongxu
2021, 52(4): 94-100.
Abstract
Low-oxygen comprehensive emergency treatment technology for fully mechanized mining face overlying extremely large goaf with close distance
TIAN Chen, LI Bin
2021, 52(4): 101-105.
Abstract
Analysis on deformation and failure of Jijianao ventilation shaft roadway and supporting countermeasures
YANG Yong
2021, 52(4): 106-111.
Abstract
Mechanism and control of support crushing disaster during mining out the upper residual coal pillar
YAO Zhihong, ZHANG Feiteng, ZHANG Yongqiang, YI Wengang
2021, 52(4): 112-117.
Abstract
Study on reasonable design of filling wall for Y-type ventilation roadway in long wall working face
SHANG Leilei
2021, 52(4): 118-124.
Abstract
Gas collection technology for coalbed methane well site
PANG Tao
2021, 52(4): 125-128.
Abstract
Research on detection technology of pipeline type infrared methane sensor in negative pressure extraction pipeline
DONG Kangning, YANG Jinfang
2021, 52(4): 129-132.
Abstract
Design and implementation of a multi-mode information lamp identification card for positioning
DAI Jianbo
2021, 52(4): 133-136,141.
Abstract
Design of fixed blast valve for gas extraction grouting sealing device
SUN Zhidong, MA Geng, SUN Yuning
2021, 52(4): 137-141.
Abstract
Drilling track measurement technology of screen pipe under soft coal seam
ZHANG Jun
2021, 52(4): 142-146.
Abstract
Study on arrangement method of air quantity sensor for main fan in coal mine
LI Man, DU Xuefeng, CAO Xiangang, HUO Man, MA Huan
2021, 52(4): 147-151,155.
Abstract
Multi-thread double data cache data processing technology for coal mine safety monitoring system
DING Yuan
2021, 52(4): 152-155.
Abstract
Intelligent recognition method of borehole image fractures for coal and rock based on YOLO v3
SU Yutong, YANG Weiyi, LI Junlin
2021, 52(4): 156-161.
Abstract
Design of hydraulic pump station for blasthole drilling rig in coal mine
GAO Xin
2021, 52(4): 162-165,169.
Abstract
Design of current limiting starting circuit with thermal protection function
HUANG Chun, WU Yincheng, LI Yiwen
2021, 52(4): 166-169.
Abstract
Design of mine wireless communication system based on LoRa technology
ZHOU Desheng
2021, 52(4): 170-173.
Abstract
Preliminary selection of target intervals for coal measure gas development in Linhua multi-coal seam field of northern Guizhou
FANG Zezhong, XU Hongjie, SANG Shuxun, JIN Jun, LIU Huihu, GAO Wei
2021, 52(4): 174-181.
Abstract
Research on law of hydraulic fracturing crack propagation controlled by multi-preset slots in long drilling of coal seam
XUE Weichao, LI Yanzeng, QI Liming, QIU Haisheng, JI Huaijun
2021, 52(4): 182-188.
Abstract
Research on law and countermeasures of gas over-limit accident in Yuwu Coal Mine based on mathematical statistics
CHAI Pei, YANG Ming, MAO Junrui, LIU Lei
2021, 52(4): 189-193,200.
Abstract
Numerical simulation analysis of pressure relief effect under the combined action of horizontal slotting and roof fracturing
XU Junjian
2021, 52(4): 194-200.
Abstract
Three-dimensional “three zones” observation of spontaneous combustion in goaf of fully mechanized top coal caving face in shallow buried and extra thick seam
LIU Dongming
2021, 52(4): 201-205.
Abstract
CO gas emission law of coal seam caused by deep-hole broken roof blasting
SUN Weili, YANG Guiru, HUANG Tao
2021, 52(4): 206-211.
Abstract
Stability analysis of coal mining subsidence area of underlying fully mechanized top coal caving based on Rhino3D-FLAC3D coupling technology
HUANG Jianfeng, WU Zhang, ZHANG Zhenzhen, LI Yongqiang, ZHANG Hao
2021, 52(4): 212-217,225.
Abstract
Characteristics of surrounding rock failure of retracement channel during end mining of 22116 working face in Lijiahao Mine
HE Yanjun, SONG Yaxin, LI Junqi, CHEN Kai, LI Zhiping
2021, 52(4): 218-225.
Abstract
Determination method of maximum subsidence value for surface based on remaining free space height of overburden
ZHANG Feng, TI Zhengyi, QIN Hongyan, WANG Kai, CAI Yongle, LI Jiazhen
2021, 52(4): 226-230.
Abstract
Analysis of steep mining and benefit based on seasonal difference of rock and soil strength
MA Zhonghui, HUANG Yukai, CHEN Shuzhao, PAN Chaogang
2021, 52(4): 231-236.
Abstract
Study on instability mechanism of red clay slope under the influence of goaf
LI Wei, REN Peng, LI Qingyao, GUO Xiafei
2021, 52(4): 237-240.
Abstract
Research on depth sensitivity of weak layers in open-pit coal mine with soft rock slope
ZHAO Guibin, FENG Haiyang, HAN Meng, LIANG Ye, CHEN Yafei
2021, 52(4): 241-245.
Abstract
Statistical analysis of coal mine safety standards in China
CHEN Yupeng, QIN Yujin, REN Shaokui, LIU Enhui
2021, 52(4): 246-249,254.
Abstract
Research on evaluation of coal mine emergency management capability based on multi-level extension
GAO Kangya, CHEN Shaojie, QI Yinge
2021, 52(4): 250-254.
Abstract
Study on the influence of role stressors on miners’ unsafe behavior
LYU Weijian, LYU Yongwei
2021, 52(4): 255-259.
Abstract
Study on detection algorithm for miner dangerous behavior based on attention mechanism
LI Chunhe
2021, 52(4): 260-264.
Abstract
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