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Application Of Air Foam Composite Directional Drilling Technology In Broken Soft Coal Seams, Liu Jianlin, Fang Jun, Chu Zhiwei, Yang Weifeng Oct 2021

Application Of Air Foam Composite Directional Drilling Technology In Broken Soft Coal Seams, Liu Jianlin, Fang Jun, Chu Zhiwei, Yang Weifeng

Coal Geology & Exploration

In order to meet the requirements of air screw motor cooling and lubrication, coal dust removal treatment at the orifice and water outlet disposal in the air directional drilling, an air foam composite directional drilling technology for broken soft coal seams has been developed based on the analysis of drilling slag migration characteristics of air directional drilling. The key technologies such as stable and efficient foaming, "mechanical + foam" composite slag discharge and "air + foam" composite drilling were integrated. The technology was also equipped with directional drillrig, foam generation perfusion system, air screw motor, special-shaped drill pipe and measurement …


Application And Development Of Advanced Drilling Technology For Coal Mine Roadway Heading, Zhang Youzhen, Fan Tao, Kan Zhitao, Wei Hongchao, Chen Hongyan Oct 2021

Application And Development Of Advanced Drilling Technology For Coal Mine Roadway Heading, Zhang Youzhen, Fan Tao, Kan Zhitao, Wei Hongchao, Chen Hongyan

Coal Geology & Exploration

With the development of intelligent and fast roadway heading in coal mines, the demand for advanced and fine exploration of heading face is becoming increasingly urgent. Considering the technical characteristics of roadway heading and tunnel drilling, this paper firstly analyzes the technical characteristics and technical requirements of roadway heading advanced drilling under the background of intelligent green mining of coal mines and describes the innovative practice of technology and equipment, such as the integration of excavation and exploration, dual-arm advanced drilling and comprehensive exploration based on directional drilling to effectively solve the contradiction of exploration and excavation and improve the …


Research Status And Prospect Of Fault Activation Under Coal Mining Conditions, Tian Yutong, Zhang Pingsong, Wu Rongxin, Liu Chang Aug 2021

Research Status And Prospect Of Fault Activation Under Coal Mining Conditions, Tian Yutong, Zhang Pingsong, Wu Rongxin, Liu Chang

Coal Geology & Exploration

Research status and prospect of fault activation under coal mining conditions


Study On Exploitation And Utilization Mode Of Tourism Resources Of The Underground Space In Abandoned Mines, Han Yun, Liu Qinjie, Wu Benniu, Yang Ke, Dong Zhiyong Aug 2021

Study On Exploitation And Utilization Mode Of Tourism Resources Of The Underground Space In Abandoned Mines, Han Yun, Liu Qinjie, Wu Benniu, Yang Ke, Dong Zhiyong

Coal Geology & Exploration

Study on exploitation and utilization mode of tourism resources of the underground space in abandoned mines


Technology Of Across-Goaf Drainage Of Coalbed Methane From A Lower Coal Seam Group And Its Primary Application: Taking Sihe Mine Field As An Example, Li Junjun, Li Guofu, Hao Haijin, Hao Chunsheng, Wang Zheng Aug 2021

Technology Of Across-Goaf Drainage Of Coalbed Methane From A Lower Coal Seam Group And Its Primary Application: Taking Sihe Mine Field As An Example, Li Junjun, Li Guofu, Hao Haijin, Hao Chunsheng, Wang Zheng

Coal Geology & Exploration

Technology of across-goaf drainage of coalbed methane from a lower coal seam group and its primary application: Taking Sihe mine field as an example


Hazard Source Effect And Location Experiment Of Concealed Water Disaster In Coal Seam Floor, Li Panfeng Aug 2021

Hazard Source Effect And Location Experiment Of Concealed Water Disaster In Coal Seam Floor, Li Panfeng

Coal Geology & Exploration

Hazard source effect and location experiment of concealed water disaster in coal seam floor


Prediction Of The Height Of Water Flowing Fractured Zone Based On Pso-Bp Neural Network, Lou Gaozhong, Tan Yi Aug 2021

Prediction Of The Height Of Water Flowing Fractured Zone Based On Pso-Bp Neural Network, Lou Gaozhong, Tan Yi

Coal Geology & Exploration

Prediction of the height of water flowing fractured zone based on PSO-BP neural network


Table Of Contents, The Editors Aug 2021

Table Of Contents, The Editors

Coal Geology & Exploration

No abstract provided.


Development Characteristics Of Coal Microfracture And Coal Petrology Control Under Cyclic High Voltage Electrical Pulse, Li Hengle, Qin Yong, Zhou Xiaoting, Zhang Yongmin, Chen Yilin Aug 2021

Development Characteristics Of Coal Microfracture And Coal Petrology Control Under Cyclic High Voltage Electrical Pulse, Li Hengle, Qin Yong, Zhou Xiaoting, Zhang Yongmin, Chen Yilin

Coal Geology & Exploration

Development characteristics of coal microfracture and coal petrology control under cyclic high voltage electrical pulse


Development And Application Of Borehole Sealing Technology For Water-Sand Inrush From Ordovician Limestone Aquifer In Coal Mine, Li Xiaolong Aug 2021

Development And Application Of Borehole Sealing Technology For Water-Sand Inrush From Ordovician Limestone Aquifer In Coal Mine, Li Xiaolong

Coal Geology & Exploration

Development and application of borehole sealing technology for water-sand inrush from Ordovician limestone aquifer in coal mine


Temporal And Spatial Evolution Of Surface Thermal Environment In Huainan Mining Area In The Last Decade, Fang Liangcheng, Chen Yongchun, An Shikai, Xu Yanfei, Zhao Yuejiao, Wang Ning, Li Zhihui, Zhao Ping Aug 2021

Temporal And Spatial Evolution Of Surface Thermal Environment In Huainan Mining Area In The Last Decade, Fang Liangcheng, Chen Yongchun, An Shikai, Xu Yanfei, Zhao Yuejiao, Wang Ning, Li Zhihui, Zhao Ping

Coal Geology & Exploration

Temporal and spatial evolution of surface thermal environment in Huainan Mining Area in the last decade


Three-Component Seismic Data Acquisition System Of Coal Mine Based On Mems And Lwip, Wang Huaixiu, Qiu Shuai, Zhu Guowei, Chen Bo Aug 2021

Three-Component Seismic Data Acquisition System Of Coal Mine Based On Mems And Lwip, Wang Huaixiu, Qiu Shuai, Zhu Guowei, Chen Bo

Coal Geology & Exploration

Three-component seismic data acquisition system of coal mine based on MEMS and LwIP


Depth Correction Technique Of Electrical Marker Based On Electrical Field Component Of Csamt, Liu Zuiliang, Zhang Fenxuan, Zhang Jifeng, Zhou Guangyu, Zhao Hui, Zhang Xin Aug 2021

Depth Correction Technique Of Electrical Marker Based On Electrical Field Component Of Csamt, Liu Zuiliang, Zhang Fenxuan, Zhang Jifeng, Zhou Guangyu, Zhao Hui, Zhang Xin

Coal Geology & Exploration

Depth correction technique of electrical marker based on electrical field component of CSAMT


Construction And Application Of "Eight In One" Closed-Loop Management And Control Mode Of Roof Water Disaster In Coal Mines, Liu Qingbao, Ding Xiang, Feng Jie, Zhang Kun Aug 2021

Construction And Application Of "Eight In One" Closed-Loop Management And Control Mode Of Roof Water Disaster In Coal Mines, Liu Qingbao, Ding Xiang, Feng Jie, Zhang Kun

Coal Geology & Exploration

Construction and application of "eight in one" closed-loop management and control mode of roof water disaster in coal mines


Mechanism And Applicability Of Increasing Coalbed Methane Well Production By Pre-Positioned Acid Fracturing, Fan Yao Aug 2021

Mechanism And Applicability Of Increasing Coalbed Methane Well Production By Pre-Positioned Acid Fracturing, Fan Yao

Coal Geology & Exploration

Mechanism and applicability of increasing coalbed methane well production by pre-positioned acid fracturing


Effects Of Different Combined Pretreatments On Biogenic Methane Production By Anaerobic Digestion Of Lignite, Zhang Huaiwen, Yao Yiqing, Xie Changwen Aug 2021

Effects Of Different Combined Pretreatments On Biogenic Methane Production By Anaerobic Digestion Of Lignite, Zhang Huaiwen, Yao Yiqing, Xie Changwen

Coal Geology & Exploration

Effects of different combined pretreatments on biogenic methane production by anaerobic digestion of lignite


Numerical Study Of Mabian Landslide Kinematics And Impact Intensity, Chen Xing, Zhao Zhou, Wei Jiangbo, Xu Chong Aug 2021

Numerical Study Of Mabian Landslide Kinematics And Impact Intensity, Chen Xing, Zhao Zhou, Wei Jiangbo, Xu Chong

Coal Geology & Exploration

Numerical study of Mabian landslide kinematics and impact intensity


Experimental Study On Advanced Real Time Detection System Of Seismic-While-Excavating, Wang Ji, Qin Si, Wu Hai, Zhang Qingqing, Yu Junhui, Su Xiaoyun Aug 2021

Experimental Study On Advanced Real Time Detection System Of Seismic-While-Excavating, Wang Ji, Qin Si, Wu Hai, Zhang Qingqing, Yu Junhui, Su Xiaoyun

Coal Geology & Exploration

Experimental study on advanced real time detection system of seismic-while-excavating


Fault Recognition Based On Principal Component Analysis And K-Nearest Neighbor Algorithm, Zou Guangui, Ren Ke, Ji Yin, Ding Jianyu, Zhang Shaomin Aug 2021

Fault Recognition Based On Principal Component Analysis And K-Nearest Neighbor Algorithm, Zou Guangui, Ren Ke, Ji Yin, Ding Jianyu, Zhang Shaomin

Coal Geology & Exploration

Fault recognition based on principal component analysis and k-nearest neighbor algorithm


Application Of In-Seam Wave Technology In Geological Anomaly Detection Of Yangquan Mining Area, Fan Deyuan, Wu Guoqing, Ma Yanlong Aug 2021

Application Of In-Seam Wave Technology In Geological Anomaly Detection Of Yangquan Mining Area, Fan Deyuan, Wu Guoqing, Ma Yanlong

Coal Geology & Exploration

Application of in-seam wave technology in geological anomaly detection of Yangquan Mining Area


Evaluation On The Resolution Ability Of Underground Transient Electromagnetic Instrument To Disaster-Causing Water Bodies, Zhao Zhongnan, Xu Yangcheng, Wu Yanqing, Tan Qingqing, Kang Yueming, Wang Yao Aug 2021

Evaluation On The Resolution Ability Of Underground Transient Electromagnetic Instrument To Disaster-Causing Water Bodies, Zhao Zhongnan, Xu Yangcheng, Wu Yanqing, Tan Qingqing, Kang Yueming, Wang Yao

Coal Geology & Exploration

Evaluation on the resolution ability of underground transient electromagnetic instrument to disaster-causing water bodies


Love Wave Full Waveform Inversion Via Pseudo-Hessian Gradient Pre-Conditioning Operator, Guan Jianbo, Li Yu, Yin Caiyun, Yang Zhi, Jin Chaobin, Zhao Meng, Yang Hang Aug 2021

Love Wave Full Waveform Inversion Via Pseudo-Hessian Gradient Pre-Conditioning Operator, Guan Jianbo, Li Yu, Yin Caiyun, Yang Zhi, Jin Chaobin, Zhao Meng, Yang Hang

Coal Geology & Exploration

Love wave full waveform inversion via Pseudo-Hessian gradient pre-conditioning operator


Research On The Model Of Accurate Exploitation And Utilization Of Underground Space Resources In Closed/Abandoned Mines, Liu Qinjie, Wang Jinjiang, Yang Ke, Di Shengjun, Dong Zhiyong Aug 2021

Research On The Model Of Accurate Exploitation And Utilization Of Underground Space Resources In Closed/Abandoned Mines, Liu Qinjie, Wang Jinjiang, Yang Ke, Di Shengjun, Dong Zhiyong

Coal Geology & Exploration

Research on the model of accurate exploitation and utilization of underground space resources in closed/abandoned mines


Key Problems And Countermeasures Of Cbm Development Through Surface Boreholes In Abandoned Coal Mines Of Shanxi Province, Wang Zheng, Li Guofu, Zhou Xianjun, Hu Shengyong, Li Rifu, Chen Wenke, Jiao Pengshuai, Li Chao, Li Jiangbiao Aug 2021

Key Problems And Countermeasures Of Cbm Development Through Surface Boreholes In Abandoned Coal Mines Of Shanxi Province, Wang Zheng, Li Guofu, Zhou Xianjun, Hu Shengyong, Li Rifu, Chen Wenke, Jiao Pengshuai, Li Chao, Li Jiangbiao

Coal Geology & Exploration

Key problems and countermeasures of CBM development through surface boreholes in abandoned coal mines of Shanxi Province


Coal Body Structure Identification By Logging Based On Coal Accumulation Environment Zoning And Its Application In Mabidong Block, Qinshui Basin, Zhang Jianguo, Han Sheng, Zhang Cong, Chen Yanjun Aug 2021

Coal Body Structure Identification By Logging Based On Coal Accumulation Environment Zoning And Its Application In Mabidong Block, Qinshui Basin, Zhang Jianguo, Han Sheng, Zhang Cong, Chen Yanjun

Coal Geology & Exploration

Coal body structure identification by logging based on coal accumulation environment zoning and its application in Mabidong Block, Qinshui Basin


Sequence Stratigraphy And Coal Accumulation Of Barrier Coastal System Under Epicontinental-Sea Environment: A Case Study Of The Late Paleozoic Taiyuan Formation In Bohai Bay Area, Chang Jia, Chen Shiyue, Wang Qiong, Pu Xiugang, Yang Huaiyu Aug 2021

Sequence Stratigraphy And Coal Accumulation Of Barrier Coastal System Under Epicontinental-Sea Environment: A Case Study Of The Late Paleozoic Taiyuan Formation In Bohai Bay Area, Chang Jia, Chen Shiyue, Wang Qiong, Pu Xiugang, Yang Huaiyu

Coal Geology & Exploration

Sequence stratigraphy and coal accumulation of barrier coastal system under epicontinental-sea environment: A case study of the Late Paleozoic Taiyuan Formation in Bohai Bay Area


Spatial-Temporal Distribution Of Outburst Accidents From 2001 To 2020 In China And Suggestions For Prevention And Control, Zhang Chaolin, Wang Enyuan, Wang Yibo, Zhou Xifang Aug 2021

Spatial-Temporal Distribution Of Outburst Accidents From 2001 To 2020 In China And Suggestions For Prevention And Control, Zhang Chaolin, Wang Enyuan, Wang Yibo, Zhou Xifang

Coal Geology & Exploration

Spatial-temporal distribution of outburst accidents from 2001 to 2020 in China and suggestions for prevention and control


Distribution Characteristics Of Heavy Minerals In The Sandstone Of Zhiluo Formation Of Northern Ordos Basin And Its Implication, Zhang Yuanyuan, Zhang Pengfei, Nie Fengjun, Yan Pengbing, Zhang Zhibo, Yan Zhaobin, Zhang Xin Aug 2021

Distribution Characteristics Of Heavy Minerals In The Sandstone Of Zhiluo Formation Of Northern Ordos Basin And Its Implication, Zhang Yuanyuan, Zhang Pengfei, Nie Fengjun, Yan Pengbing, Zhang Zhibo, Yan Zhaobin, Zhang Xin

Coal Geology & Exploration

Distribution characteristics of heavy minerals in the sandstone of Zhiluo Formation of northern Ordos Basin and its implication


Introductions And Applications Of A Self-Locking Wire-Line Coring System With A Water-Shielding Bit And A Circlip-Shielded Core Barrel, Liao Yuansu, Hu Qifeng Aug 2021

Introductions And Applications Of A Self-Locking Wire-Line Coring System With A Water-Shielding Bit And A Circlip-Shielded Core Barrel, Liao Yuansu, Hu Qifeng

Coal Geology & Exploration

Introductions and applications of a self-locking wire-line coring system with a water-shielding bit and a circlip-shielded core barrel


Water Inflow Forecasting Method Of Deep Buried Coal Working Face In Northern Ordos Basin, China, Yang Jian, Wang Hao, Liang Xiangyang, Huang Hao Aug 2021

Water Inflow Forecasting Method Of Deep Buried Coal Working Face In Northern Ordos Basin, China, Yang Jian, Wang Hao, Liang Xiangyang, Huang Hao

Coal Geology & Exploration

Water inflow forecasting method of deep buried coal working face in northern Ordos Basin, China