摘要
基于邯郸矿区郭二庄煤矿22402工作面东午铁路下采煤工程实例,为充分开采铁路下煤炭资源、延长矿井服务年限及铁路下采煤的可行性研究,进行了铁路下采煤变形预计研究及风险性评价,并给出了安全开采及铁路维护措施的建议。其预测结果表明:22402工作面开采引起东午铁路最大下沉值为140 mm,最大倾斜值为0.3 mm/m,最大水平移动值为54 mm,最大水平变形值为0.2 mm/m,该变形量不会导致铁路突陷,铁路变形是连续、渐变的,只要加强巡视,采取地面维修技术措施,铁路线路下采煤是安全可行的。
Based on the Handan Mining area Guoerzhuang der the Dongwu railway example,in order to fully exploit mine in 22402 working face Mining engineering of un- the coal resources under the railway,extend the service life of the mine and Feasibility study of coal mining under railway,the deformation prediction research and risk assessment of coal mining under the railway were carried out,and gave the suggestion of safety mining and railway maintenance measures.The prediction results showed that：22402 working face mining caused by the Dongwu rail- way the maximum subsidence was 140 mm,the maximum tilt was 0.3 mm/m,the maximum horizontal move was 54 mm,and the maximum horizontal deformation was 0.2 mrn/m,the deformation of the railway will not lead to a sud- den collapse, the railway is a continuous deformation, gradual change, as long as the strengthening of inspections, to take technical measures to repair the ground, It is safe and feasible to coal mining under railway lines.
出处
《煤炭科技》
2017年第3期30-33,36,共5页
Coal Science & Technology Magazine
基金
国家社科基金重大项目(14ZDB145)
安徽省科技攻关计划项目(1604a0802115)
河北省高等学校青年拔尖人才计划项目(BJ2016010)
关键词
铁路下采煤
变形预计
概率积分法
安全开采
开采沉陷
mining under railway
deformation forecast
probability integral method
safety mining
mining subsidence
