条带法采煤减轻地表沉陷的数值模拟研究  

Numerical simulation study on pillar mining method to reduce the ground subsidencein

作　　者：海龙[1] 梁冰[1] 

机构地区：[1]辽宁工程技术大学力学与工程学院,辽宁阜新123000

出　　处：《露天采矿技术》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

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.

关 键 词：条带采煤法 地表沉陷 数值模拟 

分 类 号：TD263[矿业工程—矿井建设]