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Gas Geology Law and Outburst Prediction in the Nuodong Coal

Author: AoShiHai
Tutor: CaiChengGongï¼›ZhangZiMin
School: Henan Polytechnic University
Course: Safety Technology and Engineering
Keywords: Tectonic evolution Gas Occurrence Gas geological rules The waxy East coal
CLC: TD712
Type: Master's thesis
Year: 2011
Downloads: 36
Quote: 0
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Abstract


Gas is \Was born in the coal seam gas , occur in the coal seam , is a gas geological body , its migration , preservation and mode of occurrence are subject to the control of the tectonic evolution . As a study area to waxy East Coal Mine , the use of gas geology theory , combined with the distribution of the mine field measurement of gas content , gas pressure data and field observations of tectonic coal research tectonic evolution of the Health of the Panjiang mine waxy East coal mine gas , storage, transport cover the control effect. Use of the research results of the predecessors of the regional geological structures , tectonic evolution history of the state of regional stress and structural features analysis obtained Panjiang located in the tectonic stress superimposed pressure shear stress , expressed as successively by two positive , anti- knob tectonic movement , especially in the role of the Yanshan movement strongest . Pratt knob structural system is Panjiang Coal master structure patterns , back in the system , continuous spread to the slanting columns , and performance plastic deformation . Ida structural fissures do not communicate with each other , forming the easy gas hosting geological conditions in the fault zone , and also formed the risk of gas enrichment block domain . The basic parameters of the measured gas combined mine , according to the geological conditions of the mine is divided into three gas geological units , gas content and seam depth is positively related to the seam depth waxy East Coal Mine Gas Emission master factors . In accordance with provisions of prevention of coal and gas outburst the waxy East coal mine gas content is greater than 8m3 / t the region is forecast to highlight the danger zone . In this study, mine planning , ventilation design, coal bed methane extraction and coal and gas outburst prediction reference .

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CLC: > Industrial Technology > Mining Engineering > Mine safety and labor protection > Mine atmosphere > Mine Gas
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