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《Coal Science and Technology》 2014-01
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Prevention Measures and Types of Mine Strata Pressure Bump Occurred in Shallow Depth Seam

LAN Hang;Department of Mining and Designing,Tiandi Science and Technology Company Limited;Rock Mechanics and Support Profession Committee,China Coal Society;  
According to the mine strata pressure bump accidents frequently occurred in shallow depth seam mining of Shenxin Mining Area, the mining activities could make the strain energy increment in the surrounding rock to induce the mine strata pressure bump occurred. An energy equation of the mine strata pressure bump was established. There were three types of the strain energy increment including the static load type,dynamic load type and superposition or mixing type. The site analysis held that there were four types of the mine strata pressure bump existed in Shenxin Mining Area,including the coal mining face with the suspended type hard roof,the strain superposition type gateway,45° steep inclined seam with falling type roof and 87° almost vertical seam with lever type rock pillar. The paper analyzed the energy resources mode and the major disaster occurred factors of each type mine strata pressure bump. Based on the circumstances,from the mining layout,monitoring and measuring method,danger evaluation,damage releasing method,effect inspection and others,the paper provided relevant countermeasures to prevent and control the mine strata pressure bump.
【Fund】: 国家自然科学基金资助项目(51304116);; “十二五”国家科技支撑计划资助项目(2012BAK09B01)
【CateGory Index】: TD324
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