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Numerical simulation of negative pressure cavity suppression of T-pipe gas explosion
DING Hao, DU Yujing, XIE Beijing
2021, 52(7): 1-8.
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A comparative study on difference of pore characteristics of coal with different deformation degrees
ZHAO Zheng, NI Xiaoming, HAN Wenlong, LI Zhongcheng
2021, 52(7): 9-14.
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Study on heterogeneous characteristics of methane adsorption by natural coal
WANG Jiangfang, WANG Chen, FENG Zengchao
2021, 52(7): 15-20.
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Pore characteristics and influencing factors of coal reservoir in Tucheng Mining Area of Guizhou Province
TANG Daixue, LIU Wen, LOU Yi, SHAO Linjie, GONG Bin
2021, 52(7): 21-26,32.
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Effect of pre-crack on coal and rock mass induced by high voltage electric pulse in water
LI Chunming, ZHAO Yinxiang, ZHAO Jinchang, YANG Shuangsuo, MA Zhongzhong
2021, 52(7): 27-32.
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Research on law of magnetic anomaly variation with depth in fire area of Ordos Coalfield
ZHANG Xinhai, CHENG Wangshou, LI Xunguang, MIAO Yuhui, DOU Kai, ZHU Hui, ZHAO Bin, CHEN Fei, YANG Shaoxiong
2021, 52(7): 33-38.
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Effect of axial loading rate on mechanical and permeability properties of raw coal
WEI Wenhui, WEI Aidong, DUAN Minke
2021, 52(7): 39-46.
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Experimental study on mechanical response failure mechanism of dynamic pressure roadway based on roof cutting and pressure releasing technology
YANG Zheng, DING Yanxiong, GAO Xiaojun
2021, 52(7): 47-53.
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Study on creep failure of coal specimen subjected to step loading
DUAN Huiqiang
2021, 52(7): 54-60.
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A new pressure maintaining and sealing technology for gas drainage borehole
WANG Shuai
2021, 52(7): 61-66.
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Three-dimensional electrical method advanced detection technology based on comparative method to eliminate the influence of roadway
ZHAI Peihe, REN Keke, ZHANG Zhao, LIU Yuxiang
2021, 52(7): 67-71,78.
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Application of transient electromagnetic method in exploring karst aquifer in Qinglong Coal Mine of Qianbei Mining Area
FAN Juan
2021, 52(7): 72-78.
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Research and application of pulverized coal ash ceramsite concrete isolation wall
LI Zhiyong, XIN Min, LIU Xingle, TIAN Xianghong
2021, 52(7): 79-83.
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Grouting filling treatment method of goaf in small coal mine with soft rock roof and large buried depth
QIAO Yanzhen
2021, 52(7): 84-88.
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Key technology of mine differential pressure and wind speed sensor used in harsh environmen
LIU Peng, ZOU Dedong
2021, 52(7): 89-93.
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Application status and development direction of wireless positioning technology and system in underground coal mine
CHANG Lin
2021, 52(7): 94-98.
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Accurate positioning system for mine based on UWB technology
WANG Fei
2021, 52(7): 99-102.
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Mine intrinsic safety power supply based on adjustable capacity and protection time
ZOU Dedong, LIU Peng
2021, 52(7): 103-106,111.
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Intelligent inspection robot system for return air roadway in Zhangjiamao Coal Mine
MAO Hao, XUE Zhongxin, FAN Shengjun, ZHAO Hongju
2021, 52(7): 107-111.
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Design and application of on-line monitoring system for borehole group in coal mine
WANG Xiaolong, ZHAO Liang, ZHANG Jun
2021, 52(7): 112-115.
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Directional drilling technology with mud pulse wireless MWD in underground coal mine
LI Quanxin, CHU Zhiwei, XU Chao, FANG Jun
2021, 52(7): 116-120.
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Application of double pipe directional drilling technology in 313 face of Qinan Mine
XU Rui, HONG Jianjun, ZHANG Jie
2021, 52(7): 121-124.
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KG-300-2J flushing fluid purification circulation system using directional drilling in coal mine
LIU Zhi, LIU Jianlin, LI Quanxin, WANG Siyi
2021, 52(7): 125-128.
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Key technology of split-type slitting drill rig with double-arm for mine
KAN Zhitao
2021, 52(7): 129-133.
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A method for autonomously realizing rapid off-site power-off in underground coal mine substation
GAO Xubin
2021, 52(7): 134-137.
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Development of bolting machine on anchor excavator machine
LI Wangnian
2021, 52(7): 138-141.
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Design of mine portable card reader based on UWB
ZHANG Liqun
2021, 52(7): 142-146.
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Monitoring system on brake clearance of main shaft hoist in Hongyang No.2 Coal Mine based on laser detection technology
MU Shujie, WANG Guanglu, GONG Xibo, SHI Xiaoxin
2021, 52(7): 147-150.
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Development and application of full hydraulic automatic drill pipe adding device
HAN Jian
2021, 52(7): 151-154.
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Supplement of unit equal desorption enthalpy to comprehensive action hypothesis of coal and gas outburst
ZHANG Xuemei, LI Dong, MA Qinghua, HAO Jingyuan
2021, 52(7): 155-161.
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Research progress on gas resource evaluation, extraction and utilization in abandoned coal mines in China
WU Jingang, MAO Junrui
2021, 52(7): 162-169.
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Numerical analysis on migration of shearer-generated dust in mechanized coal mining workface
REN Zhifeng, LI Yuanzhi, WU Jianjun, WANG Bingjian, LU Zhongliang
2021, 52(7): 170-174.
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Minimum wind flow of air directional drilling technology in soft-fragmentized coal seam
SUN Lihai
2021, 52(7): 175-180.
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Research on deformation and failure characteristics of floor of working face on high pressure aquifer
SHI Lei
2021, 52(7): 181-186,192.
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Coal and rock dynamic disaster analysis in Huainan Mining Area based on key stratum control principle
GAN Lintang
2021, 52(7): 187-192.
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Optimization of support parameters of water rich roadway based on thickness of grouting reinforcement circle
ZHU Shikui, DING Ke
2021, 52(7): 193-199,206.
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Numerical analysis of time-sharing differential freezing temperature field in coal mine
WANG Xiaojian, LI Zhaosheng, ZHANG Liangliang, SUN Shiyuan, SHEN Renwei, FANG Gensheng
2021, 52(7): 200-206.
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Mechanism and prevention of rock burst induced by horizontal sublevel mining of a steeply inclined extra-thick coal seam
WANG Zhengyi, DOU Linming, HE Jiang, CAO Jinrong
2021, 52(7): 207-214.
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Research progress and analysis of multi-data fusion technology for advanced detection of mine roadway
QIU Shi, ZHANG Pingsong, HU Ze’an, LI Shenglin
2021, 52(7): 215-223.
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Mechanism analysis and design of full-length anchoring bolt in rectangular roadway
GU Shuancheng, WANG Pan, YANG Chaofan
2021, 52(7): 224-230,236.
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Finite element analysis of temporary support for top coal fast tunneling
CHENG Fuming, HAN Zhongli, LIU Jiansheng, CAO Xiulong, HAN Xiaoming, LU Zhongliang
2021, 52(7): 231-236.
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Simulation study on slip failure of roadway surrounding rocks containing weak layer
DING Minjie, GUO Pengfei, PENG Yanyan
2021, 52(7): 237-244.
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Study on step height optimization and slope stability of dump in opencast coal mine
YANG Fuqing, TIAN Ya, HANG Chuanwei, WANG Zhile, LU Xiang, CAI Qingxiang
2021, 52(7): 245-251.
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Empirical study on intervention effect of risk pre-control management system in coal industry
FA Ziwei, LI Xinchun
2021, 52(7): 252-255.
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Study on significance of safety signs in different working face scenes in coal mine
TAN Zhanglu, LIU Jie, WU Qi
2021, 52(7): 256-260.
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Discussion on reform of coal mine safety supervision system based on Internet of Things
FENG Chunhua, ZHANG Minghui
2021, 52(7): 261-264.
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