摘要
通过数值模拟研究了某矿2#、3#煤层充填前后地表下沉量、煤层上方岩层垂直应力分布及充填前后上覆岩层运移规律,建立了充填前后力学模型,并对某矿的充填效果进行评价。研究结果表明:充填开采对地表沉陷有明显的控制作用,最大减幅可达长壁开采的84.8%。
Numerical simulation of the front and rear a mine on the 2nd, the 3rd seam filling surface subsidence, migration law on coal overburden strata above the vertical stress distribution and filling before and after the establishment of a mechanical model of the filling front, and a mine filling evaluate the effect of mine. The results show that: filling the exploitation of surface subsidence has obviously control, up to a maximum reduction of 84.8 percent longwall mining.
出处
《煤炭技术》
CAS
北大核心
2015年第4期53-55,共3页
Coal Technology
基金
青年基金项目(51404167)
山西省高等学校科技创新项目(2013112)
太原理工大学引进人才基金(tyut-rc201308a)
关键词
地表下沉
垂直应力
上覆岩层
充填
力学模型
数值模拟
subsidence
vertical stress
overburden
filling
mechanical model
numerical simulation
