Coal Geology & Exploration
Volume 50, Issue 10 (2022)
Table of Contents
Table of Contents
The Editors
Special Issue Article
Redevelopment strategy of closed coal mine industrial plaza: A case study of Fenghuangshan Mine in Jincheng, China
WANG Jingxiang, CHANG Jiang, DENG Yuanyuan, LIN Yan, and WU Haoran
Coal Geology, Mine Geology
Study on mechanical mechanism of roof fracture evolution in deep stope with variable face length
WANG Xinfeng and LU Mingyuan
Occurrence law of coal seam gas under influence of normal fault zone in coal measures
XIAO Peng, WU Mingchuan, SHUANG Haiqing, HAN Kai, GAO Zhen, and CHENG Yueying
Research on permeability model of coal reservoir along producing wellbores
JIA Lidan, ZHANG Lin, LI Bobo, WU Xuehai, GAO Zheng, WANG Zhonghui, and FU Jiale
Coal-measure Gas, Coal-hosted Minerals
Research and application of integrated fracturing fluid system for unconventional natural gas in coal measures
XU Dong, WANG Yubin, BAI Kunsen, ZHU Weiping, LIU Chuanqing, LI Bing, and HE Pengbo
Occurrence modes and stepwise chemical extraction experiment of lithium in No.20 coal seam in Pu’an mining area, Guizhou Province
CHENG Chen, SONG Yang, ZANG Jingkun, and CHENG Wei
Hydrogeology, Engineering Geology, Environmental Geology
Numerical simulation on evolution law of overburden fractures and surface cracks in crossing ditch mining of shallow coal seam
WEI Jiangbo, WANG Shuangming, SONG Shijie, and SUN Qiang
Experimental study on stress relaxation characteristics of soft dredger fill under UU triaxial shear
YANG Aiwu, YANG Shaopeng, and QI Jiejie
Spatial variation characteristics of soil heavy metal speciation and bioavailability in coal gangue accumulation area—Taking Fengfeng mining area as an example
SUN Tao, SONG Shijie, CHANG Qing, WANG Chenchen, ZHANG Yanjie, PENG Ruisi, and WANG Yi
Effect of initial adhesion on shear strength and deformation characteristics of interfaces in heterogeneous soils
ZHU Yanbo, YANG Fanfan, MIAO Shuaisheng, LI Futong, and ZHANG Yuxuan
SVM-based sensitivity zoning of subsidence disaster development in the underground coal mining areas
XUE Yong’an, ZOU Youfeng, ZHANG Wenzhi, ZHANG Mingmei, and LIU Guangchun
Research and application progress of energy underground structures
WEN Jiwei, HOU Junlong, LIU Xinghong, ZENG Xian’en, and XIANG Tian
Numerical simulation of the influence of karst structure on heat transfer efficiency of buried pipeline group
MU Xuan, PEI Peng, ZHOU Xin, and TU Hongsheng
Coal Geophysical Exploration, Mine Geophysical Exploration
Numerical simulation on azimuth gamma ray detection of coal and rock interface
CHEN Gang, CHEN Long, LI Quanxin, and LIU Zhiyi
Time-to-depth conversion accuracy analysis and improvement method for inclined coal bed
WANG Huifeng, FU Chao, LI Guo, and CHEN Tongjun
Drilling Engineering
Air-driven directional drilling technology and equipment in soft coal seam of Huainan mining area
TIAN Hongliang, CHEN Jian, ZHANG Jie, CHENG Heyu, DONG Ruigang, DU Limeng, LIU Degui, and GUAN Qiangsheng
Design and application of pump-free double channel mechanical hole enlarging bit for gas penetration in middle hard coal seam
GAO Xiaoliang, SHAO Guojie, and YANG Huwei
Influencing factors of increasing the signal strength of the EM-MWD by applying insulation coating outside the casing
SHAO Chun, HU Chuang, XU Lin, CHEN Minghua, and LONG Xiaoping
Research on drill pipe pose recognition technology based on monocular vision
MA Bin and PENG Guangyu
