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Research progress and development trend of staged hydraulic fracturing technology in long-borehole underground coal mine
SUN Siqing, LI Wenbo, ZHANG Jian, CHEN Dongdong, ZHAO Jizhan, ZHENG Kaige, LONG Weicheng, WANG Chenyang, JIA Bingyi, DU Tianlin, LIU Le, YANG Huan, DAI Nan
2022, 50(8): 1-15. DOI: 10.12363/issn.1001-1986.22.06.0520
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Experimental study on the mechanical properties of coal-like materials for hydraulic fracturing simulation
ZHAI Cheng, ZHENG Yangfeng, YU Xu, XU Jizhao, SUN Yong, CONG Yuzhou, TANG Wei, LI Yujie, ZHU Xinyu, CHEN Aikun
2022, 50(8): 16-28. DOI: 10.12363/issn.1001-1986.22.04.0272
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High-efficiency regional gas drainage model after hydraulic fracturing of comb-shaped long boreholes in the roof of broken soft and low permeability coal seam
CHEN Dongdong, WANG Jianli, JIA Bingyi, XI Jie
2022, 50(8): 29-36. DOI: 10.12363/issn.1001-1986.22.03.0195
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Research on hydraulic fracturing technology and equipment of directional long drilling with sand in coal seam roof
ZHANG Jian, LIU Le, ZHAO Jizhan, SUN Siqing, WANG Chenyang
2022, 50(8): 37-44. DOI: 10.12363/issn.1001-1986.22.03.0201
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Experimental study of hydraulic fracture evolution with materials similar to the structural plane
LI Quangui, WU Xiaobin, HU Qianting, LIU Le, SHI Jialin, SONG Mingyang
2022, 50(8): 45-53. DOI: 10.12363/issn.1001-1986.22.03.0214
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Study of technologies and equipment of continuous hydraulic sand fracturing for permeability enhancement at high pressure side of coal mine downhole
JIA Bingyi, LI Shugang, CHEN Dongdong, LIN Haifei, ZHENG Kaige, SUN Siqing, ZHAO Jizhan
2022, 50(8): 54-61. DOI: 10.12363/issn.1001-1986.22.03.0191
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Dynamic disaster evolution mechanism of high mine pressure at hard roof and advance area prevention and control technology
ZHENG Kaige, WANG Lintao, LI Bingang, LI Yanjun, YANG Huan, YANG Sen, DAI Nan, WANG Haojie, WANG Zeyang, XI Jie
2022, 50(8): 62-71. DOI: 10.12363/issn.1001-1986.22.04.0222
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Enhanced gas drainage technology by staged fracturing in long bedding borehole in hard coal bed of underground coal mine and its application
WANG Chenyang, LI Shugang, ZHANG Yongtao, GUO Yi, SUN Siqing, CHEN Dongdong, DOU Chengyi
2022, 50(8): 72-81. DOI: 10.12363/issn.1001-1986.22.04.0229
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Analysis and prospect of precise prevention and control technical system ahead of large areas and time for gas disasters in China
LIU Cheng, SUN Dongling, WU Wenbin, LI Liangwei, SUN Zhongguang
2022, 50(8): 82-92. DOI: 10.12363/issn.1001-1986.21.12.0869
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Study on long-distance fixed-point sealed coring technology in broken-soft coal seam
LONG Weicheng, SUN Siqing, CHEN Jian
2022, 50(8): 93-98. DOI: 10.12363/issn.1001-1986.21.12.0882
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Hydrochemical characteristics and source analysis of deep groundwater in Qianyingzi Coal Mine
CHEN Kai, LIU Qimeng, LIU Yu, PENG Weihua, WANG Zitao, ZHAO Xiang
2022, 50(8): 99-106. DOI: 10.12363/issn.1001-1986.21.11.0631
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Floor failure law of extra-thick coal seam in fully mechanized caving mining
GUO Guoqiang
2022, 50(8): 107-115. DOI: 10.12363/issn.1001-1986.21.12.0774
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Study of constitutive model of frozen sandstone damage based on Weibull distribution
YI Ming, ZHAO Tao, MA Feifei, WANG Lei, YUAN Chao
2022, 50(8): 116-124. DOI: 10.12363/issn.1001-1986.22.02.0070
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Analysis on spatio-temporal evolution law of freezing temperature field in eastern shaft of Qinan Coal Mine
HUANG Shiqing, RONG Chuanxin, LONG Wei, MA Haochen, HE Junzhen
2022, 50(8): 125-133. DOI: 10.12363/issn.1001-1986.21.12.0743
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Abnormal response characteristic simulation during transient electromagnetic detection in mine borehole
ZHANG Jun
2022, 50(8): 134-141. DOI: 10.12363/issn.1001-1986.21.11.0673
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Study of advance elaborate detection with transient electromagnetic method for mine with closed poor boreholes
HUANG Zhongzheng, JIANG Guoqing, WANG Jun, CHENG Jiulong, MA Zhi, TIAN Chuxiao, XIN Chengtao
2022, 50(8): 142-148. DOI: 10.12363/issn.1001-1986.21.12.0841
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Experimental study on nondestructive testing of anchor cable in pumped storage power station
YAN Liangping, ZHOU Liming, CUI Botao, WANG Bolin, LU Jiangang
2022, 50(8): 149-156. DOI: 10.12363/issn.1001-1986.21.10.0585
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Optimized design and surface additive technology of PDC bit for hard rock directional drilling
WANG Chuanliu, JIN Xin, GAO Xiaoliang, ZHANG Peng
2022, 50(8): 157-164. DOI: 10.12363/issn.1001-1986.22.03.0130
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Development and application of a retractable slip overshot in underground coal mines
WU Tao
2022, 50(8): 165-170. DOI: 10.12363/issn.1001-1986.21.11.0647
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Experimental study on power matching of modular double pumping stations of tunnel drilling rig
LU Feifei, FAN Dong, TIAN Hongliang
2022, 50(8): 171-178. DOI: 10.12363/issn.1001-1986.21.12.0860
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