Coal Geology & Exploration
Volume 50, Issue 5 (2022)
Table of Contents
Table of Contents
The Editors
Coal Geology, Mine Geology
A review：Geological feasibility and technological applicability of underground coal gasification
JIANG Xiuming and WU Caifang
Spatial distribution of harmful trace elements in Chinese coals
CAO Qingyi, REN Wenying, LIANG Chaoming, ZHANG Yufei, and YANG Liu
Specific properties and combustion characteristics of natural coke from adjacent areas of Jiangsu, Shandong, Henan and Anhui provinces
QIN Yunhu, WANG Shuangmei, ZHU Shifei, WU Guoqiang, QUAN Jutao, and MAO Lixin
Nanopore structure and surface roughness in brittle tectonically deformed coals explored by atomic force microscopy
ZHANG Ningyuan and YAO Suping
Coal-measure Gas, Coal-hosted Minerals
Accumulation mode of middle-low rank coalbed methane in Houxia Basin，Xinjiang
TU Zhimin, CHE Yanqian, LI Peng, and LIN Wenji
Eefficient fracturing technology and fine drainage system of ultra-deep coalbed methane in southeast Chongqing：A case study of NY1 well
FANG Dazhi, CHENG Zehu, and LI Jiaxin
Evaluation method and application of fracturing effect based on dynamic permeability change of coal reservoir hydraulic fracturing
SHAN Tuo, SUN Changyan, WANG Qian, XIE Xiangjun, and FAN Yigang
Ground development technology and engineering application of CBM in coal mine goafs： A case study of Jincheng mining area in Qinshui Basin
ZHOU Xianjun, LI Guofu, LI Chao, WANG Zheng, and LI Jiangbiao
Hydrogeology, Engineering Geology, Environmental Geology
Efficient treatment technology of incrementally open water gushing channel under dynamic water conditions
PU Zhiguo, DING Xiang, LI Zhe, JI Zhuochen, YAN Xin, HE Xiaolang, and MA Jianguo
Identification of burning temperature of burnt rocks in northern Shaanxi based on thermoacoustic emission technology
SUN Qiang, WANG Shaofei, GE Zhenlong, WEI Shaoni, and DING Xiaoying
Optimization calculation of the width of waterproof coal pillars in fault zones based on spatial relationship between coal strata and fault
WU Bin, XIE Daolei, HAN Jing, CHEN Qiang, and ZHANG Huide
Failure analysis of deep coal seam floor considering strain softening of surrounding rock and formation contact in goaf
YIN Shangxian, MENG Haopeng, and QIAN Shuangbin
Simplified internal variable gradient model for zonal disintegration of rocks in circular underground tunnels
HE Ziguang, ZHAO Fasuo, CHEN Haoxiang, WU Bo, and ZHOU Jingjing
Temperature field analysis of new pipe curtain freezing method in river embankment anti seepage reinforcement
ZHOU Yuxuan, HU Jun, XIONG Hui, REN Junhao, ZHAN Jianjian, and WANG Zhixin
Coal Geophysical Exploration, Mine Geophysical Exploration
Numerical simulation of azimuth electromagnetic wave response of complex geological model of horizontal hole in coal mines
ZHANG Yi, KANG Zhengming, FENG Hong, HAN Xue, and CHEN Gang
Geological structure detection with tunnel transient electromagnetic Kirchhoff 2D migration imaging
QI Zhipeng, GUO Jianlei, SUN Naiquan, LI Xiu, and FAN Yanan
3D forward modeling of DC resistivity method based on finite element with mixed grid
WANG Xinyu, WANG Cheng, MAO Yurong, YAN Liangjun, ZHOU Lei, and GAO Wenlong
Preliminary investigation of uranium resource evaluation method based on natural gamma logging data：A case study of the Pengyang uranium deposit in Ordos Basin
YU Reng’an, SUN Dapeng, ZHOU Xiaoxi, DENG Fan, SI Qinghong, and HU Yongxing
Drilling Engineering
Study and application on multi branch point sampling drilling technology of coal seam floor borehole
CHU Zhiwei, LONG Weicheng, JIA Bingyi, and LIU Fei
Powder discharge characteristics of pneumatic double pipe directional drilling in broken soft coal seams and its application
NIE Chao, WANG Yi, YAO Yafeng, and HONG Jianjun
