公路下采煤引起的路基变形规律有限元模拟

对魏家地煤矿109工作面的开采以及103工作面和上部小煤窑煤炭开采的叠加综合作用对唐红公路路基变形的影响进行了有限元分析.分析表明,109工作面引起的开采沉陷对公路安全运营虽有一定影响,但影响不大,可以进行公路和村庄下采煤,109工作面的开采可以保证公路的正常运营及村庄建筑物的安全使用.但是由于其他采空区的叠加作用,为安全起见,建议设置地表变形监测系统,加强监测,分析地表变形规律,应对紧急情况的发生.

FEM Research on Influence of Mine Goaf on Highway Deformation

The composite influence of mining of caving face 109,caving face 103 and the small coal mine on the Tanghong Highway's deformation is analyzed with FEM.The result shows that the mining of caving face 109 af- fects the deformation and operation of the highway more or less but not significantly.The coal under the highway and the village is allowed to be mined.Because of the composite affect considering other caving faces,a suggestion of set- ring up a settlement monitoring net of ground surface,monitoring and analyzing the deformation laws of the ground surface is given to be prepared for the urgency.