摘要
以皖北某矿老采空区上方地基稳定性评价为例,研究了应用FLAC进行老采空区地基稳定性评价的过程与方法。研究表明,使用FLAC模拟老采空区地表移动和变形必须对岩层参数进行修正。模拟计算结果显示,老采空区地表残余移动变形与一般开采条件下主断面地表移动和变形具有相同的分布规律,在载荷作用下,地表移动和变形的大小范围均增大,该区域地表残余移动变形不会影响新建建筑物的安全使用。
Take evaluation on stability of building foundation over old- goat＂ for a coal mine in Wanbei as example, researched of the process and method to evaluation on stability of building foundation over old - goat＂ with FLAC. Parameter of rock stratum must be modified in numerical simulation of old - goaf subsidence. The result of simulation show that law of residual subsidence and deform over old - goaf was same as normal mining. The research showed that domain and dimension of subsidence and deform enlarged under burdening. The residual subsidence and deformation had no influence to building safe service in this area.
出处
《煤矿安全》
CAS
北大核心
2009年第10期11-14,共4页
Safety in Coal Mines
基金
国家自然科学基金资助项目(40772191)
"十一五"国家科技支撑计划重点项目(2006BAC09B01)
关键词
FLAC
老采空区
地基稳定性
残余变形
FLAC
old - goaf
stability of building foundation
residual deformation
作者简介
作者简介：李培现（1983-），男，山东巨野人，硕士研究生，从事矿山开采沉陷与数字矿山方面的研究工作。
