School of Resources and Safety Engineering,China University of Mining and Technology(Beijing)

为解决赵各庄矿12号煤层构造区域厚煤层工作面的冲击地压防治问题,以2337东工作面为例,基于地质条件、构造应力分布和开采技术3个因素分析了该工作面冲击地压发生的可能性;并利用综合指数法、可能性指数诊断法和经验类比法对2337东工作面危险性进行了系统的评价,确定该工作面具有中等冲击地压危险。通过采用分段缺陷型爆破卸压、钻孔卸压和注水卸压等解危措施对工作面不同危险区域进行具体卸压处理,并结合钻屑法和应力在线监测技术对危险区域进行实时监测,有效地降低了冲击地压的发生,保证了深部构造区域厚煤层工作面的安全回采。

in order to solve the mine pressure bunp prevention and control problems of the coal mining face in tructure area of Noc.12 seam in Zhaogezhuang Mine.based on No.2337 E coal mining face as a case.the posstblity of the mine pressure bump occured in the coal mining face was analjzed based on the thee factors ofthe geological condttons ,the structure stress distrbution and the mining technofogy.The comprehensive index nethod .the possility index diagnosis method and the empirical nalogy mefnod were appied to the systematic evaluation on the danger of No.2337 E cal mining face.There was a medum pressure bump danger determined for thecoal nining face .With the sectional defect type basting pressurereleased, borehole pressure released and the water injection pressure released measurescerain pressure released was conducted in diferent danger areas of the coal mining face The conbination withthea lling cuting method and the stress on-ine montorig and measuring technology was appied to thereal time montoring and measuring of the danger rea .The mine pressure bump occured was effcively reduced and he safety mining of the coal mining face in the thick seam of the deep structure area.