摘要
煤矿开采引起的地表沉陷会影响下沉盆地范围内的房屋建筑及其它构筑物,甚至破坏。条带法采煤留下的条带煤柱能够承受住上覆岩层的载荷,达到顶板稳定及地表稳定的目的。本文选择典型地质条件,对条带式和长壁式采煤方法的数值模拟结果进行比较分析。结果表明条带法的顶板下沉远小于垮落法,保证了地表变形的微小与均匀。条带法采煤对地表的破坏较小,可有效控制地面沉陷现象的发生。
Coal mining subsidencein can effect or even damage the buildings and other structures in the range of the subsidence basin. The coal pillar left behind by pillar mining method can undertake the load of the overlying strata, achieve the roof and ground stabilization. This paper selected a representative geology condition, compared for the numerical simulation results of pillar mining and longwall mining. The results showed that the roof descending of pillar mining far less than longwall minings, ensured that the ground deformation was minimal and uniform. Pillar miming can reduce the ground damage, effective control the ground subsidencein.
出处
《露天采矿技术》
CAS
2009年第2期19-22,共4页
Opencast Mining Technology
基金
辽宁工程技术大学优秀青年基金资助项目
关键词
条带采煤法
地表沉陷
数值模拟
pillar mining method
ground subsideneein
numerical simulation
