承压含水层“高阻力支架-围岩”相互作用研究  

Study on Interaction between High Resistance Support and Surrounding Rock under Aquifer

作　　者：王焱 

机构地区：[1]西山煤电集团公司马兰矿,山西古交030200

出　　处：《山西焦煤科技》2017年第6期4-9,共6页Shanxi Coking Coal Science & Technology

摘　　要：松散承压含水层下煤层开采容易造成工作面压架事故。为了研究不同支架工作阻力对松散承压含水层下煤层开采的影响,以UDEC模拟软件为工具,研究工作面支架工作阻力在6 000 kN、8 000 kN、10 000 kN下对关键层结构稳定性情况影响。研究结果表明:松散承压含水层下开采,初次来压时不同的支架工作阻力对关键层结构稳定性影响较大,支架工作阻力为6 000 kN、8 000 kN时在初次来压期间容易发生压架事故,10 000 kN支架工作阻力下并没有发生压架事故,可见,提高支架工作阻力能够避免压架事故。Loose Coal seam mining under aquifer is prone to accidents of support unmovable. In order to study the impact under different support working resistances,the UDEC simulation software was introduced to observe the stability of the critical structure with the working resistance under 6 000 kN,8 000 kN and 10 000 kN. The results show that the different working resistance has a great influence on the stability of the key layer structure,especially in the case of the 6 000 kN and 8 000 kN at the moment of initial pressure,the support failed in moving. But for the10 000 kN situation,no support failure happened. So the working resistance is very crucial in prevention of support roof pressure related accident.

关 键 词：松散承压含水层 关键层 稳定性 支架 工作阻力 

分 类 号：TD823.83[矿业工程—煤矿开采]