摘要
采空区上覆岩体在不能承受二次分布的应力时产生跨落塌陷,危及到地表,造成地表建筑物和设施的损坏。采空区上覆建筑物地基稳定性分析是预防灾害的前提和基础。应用采空区上覆建筑物临界安全加载深度法对某矿区上覆铁路地基稳定性进行分析,得出对研究区内H1巷道上覆地基稳定,不需要加固治理,采空区C1和C2上覆地基不稳定,需要加固治理,该结论为预防大规模灾害的发生和治理资源的分配提供了依据。
Caving in collapse will be happened when the overlying strata above goaf can not bear the secondary stress, endangered to ground surface, caused surface structure and installation damages. The stability analysis of structure foundation above goal is precondition and basis to prevent disasters. An analysis has carried out for railway foundation above a mine area through the use of structure above goaf critical safe loading depth method, confirmed that the foundation above H1 roadway in the area is stable, need not to be reinforced; while foundation above C1 and C2 roadways need to be reinforced. The conclusion has provided a basis to prevent large scale disasters and governing resources distribution.
出处
《中国煤炭地质》
2010年第3期34-36,共3页
Coal Geology of China
关键词
采空区
路基
稳定性分析
临界安全加载深度
goaf
road foundation
stability analysis
critical safe loading depth
