Zhongzhou Coal 2015 Issue 8 Study and Practice on Technology of Gas Extraction for Underlying Coal Seam Technology with Low Directional Drilling

Study and Practice on Technology of Gas Extraction for Underlying Coal Seam Technology with Low Directional Drilling
Sun Guiliang;,Cheng Bo;

..............page:1-3,7

Three-dimensional Staggered Extraction Technology of Gas of Closed Distance Seam Group Controlled by Dense and Low Permeability Cover
Zhai Erhou;,Huang Ruifeng;,Cheng Bo;

..............page:4-7

Experimental Study on Technology of Ventilation Air Methane Collection
Xu Huijuan;,Li Jie;

..............page:8-10

Experiment Study on Inhibitor of Coal Spontaneous Combustion Based on CO Release Rate
Xie Fengcheng;

..............page:11-14

Study on Exposing Coal Technology of "Bottom Short Pilot Tunnels Medium Replacement" in Return Airway
Wang Liangjin;,Jing Fuxing;

..............page:15-18

Study on Gas Control on 2903 Fully-mechanized Working Face During Withdrawal Period
Bai Yanlong;,Zhou Zhongli;,Cao Hongcui;

..............page:19-20,23

Application Study on Control of Carbon Monoxide Over-limit Using Forced Ventilation
Yao Zhongbao;

..............page:21-23

Development and Application of New Type Removal Dust Device for Drilling Operation in Three-soft Coal Seam
Huang Bingyin;,Liu Yuwei;

..............page:24-26

Application of Ventsim Three-dimensional Ventilation Simulation System in Wangjiata Coal Mine
Lü Huiqing;,Liu Yongfei;

..............page:27-29,32

Study on Gas Prevention and Control Technology of Middle-bottom Coal Roadway Drivage in Mine Shaft with High Outburst Danger
Gao Chaoliang;

..............page:30-32

Experimental Study on CO Producing Regularity in Coal Spontaneous Combustion Under Different Oxygen Concentrations
Wang Jinsheng;,Zhang Junsheng;

..............page:33-35

Design and Research on Hydraulic Support Spraying and Dust Suppression System
Wang Songtao;,Chang Yuanyuan;,Wang Zhe;

..............page:36-38,41

Application Research on Core Drilling Technology in Crossing Hole
Li Zhen;,Ou Lidong;,Li Xiangfa;,Zhang Yeming;,Zhu Jian'an;

..............page:39-41

Regional Combined Outburst Prevention Technology of Rock Cross-cut Coal Uncovering for Close Thick Outburst Coal Seams
Huang Guangli;,Zhang Shipeng;,Liu Jun;

..............page:42-44,53

Karst Water Prevention of Maokou Formation in Coal Mine Floor in Xinglong Coal Mine of Guizhou Province
Zhang Yong;

..............page:45-46,61

Application Research on Key Technology of Freezing Inclined Shaft
Zhao Yuming;,Li Kun;,Xu Shurong;

..............page:47-48,70

Research on New Mining Method of Thick Coal Seam in High Geo-stress Soft Rock
Cui Zimo;,Zhao Jingli;

..............page:49-53

Study on Instability Mechanism and Supporting Measures of High Stress Soft Rock Roadway on Fully-mechanized Working Face
Guo Yuanbo;,Nie Shoujiang;

..............page:54-57

Security Control Technology of Large-section Cutting Hole in Conditions of Thin Bedrock and Thick Overburden Layer
Liu Hui;

..............page:58-61

Application of Supporting Technology on Inclined Cable in Roadway of Gob-side Entry Driving
Xia Yu;

..............page:62-64

Research on Construction Technology of Large Chamber in Soft Rock Coal Mine Under Rich Water Condition
Wang Xiaoyong;,Wang Yanjun;,Li Yihu;

..............page:65-67

Application of Bolt Net Supporting Technology for Coal Roadway with Three Soft and Extremely-thick Coal Seam
Wang Hongwei;,Liu Yanwei;,Tian Keyong;

..............page:68-70

Recycling Marginal Coal Pillar Scientifically and Reasonably Using Short Wall Fully-mechanized Mining Technology
Li Jin;

..............page:71-73,77

Instability Mechanism and Control Technology of Extraction Roadway Surrounding Rock Based on Deep Upper Protective Seam Mining
Zhao Shangning;,Chu Yapei;

..............page:74-77

Roof Control Technology in Stages and Support Withdrawal During End Mining on Fully-mechanized Top Coal Caving Face
Shi Xiaodong;

..............page:78-80

Brief Discussion on Intensive Supporting Mode of High Prestressed Force on Fully-mechanized Driving Face
Gao Peng;

..............page:81-82,85

Study on Saving and Comprehensive Utilization of Mineral Resources Based on "Two Soft and Hard" Coal Seam
Li Shasha;,Sun Jian;

..............page:83-85

Application Study on New Technology for Transportation of Inclined Drift
Zhu Xiaoqing;,Xie Sanjian;,Zheng Haitao;

..............page:86-88,93

Technology and Practice on Working Face Passing Through Fault
Song Laiwu;

..............page:89-90,108

Research on Radial Load Changing Regular of Outer Wall in Western Soft
Liu Xiaomin;

..............page:91-93

Design and Study on New Type Mine-used Hydraulic Stepper Device Tractor
Xu Qi;,Zhang Yi;

..............page:94-95,101

Applications of Enterprise Service Bus and Plug-in Technologies in Coal Mine Integrated Automation System
Li Yong;,Zhong Yu;,Liang Qiang;,Wang Qiang;

..............page:96-98

Technical Transformation of Balance Disc and Inspeller in Mine-used Multistage Centrifugal Pump
Wang Xiaohua;

..............page:99-101

Analysis and Application of Paleogully Transient Electromagnetic Response Characteristics
Gan Zhichao;

..............page:102-104

Application of Wavelet Analysis in Deformation Monitoring Data Processing
Li Xiaoxia;,Zhang Jianxiong;

..............page:105-108

Brief Discussion on Relationship Between Heavy Hydrocarbon in Coalbed Gas and Coalification Degree and Coalbed Depth
Tian Xinjuan;

..............page:109-111,115

Types and Characteristics of Accommodation Structures in Extended Terranes
Zhang Shaochen;,Tan Zhaobin;,Luo Pengfei;,Liu Baocheng;

..............page:112-115

Analysis on Difference Karstification and Karst Development Mechanism in Pingdingshan Mining Area
Chen Guosheng;,Pan Guoying;,Qin Yongtai;,Du Pengzhuo;

..............page:116-120

Application of DST Testing Technology in Coalbed Methane Parameter Well
Lu Yujie;,Sun Ding;,Yang Min;

..............page:121-123

Influence Factors on CBM Desorption in Southern Qinshui Basin and Its Numerical Simulation
Wang Xin;

..............page:124-128