北八特采空区路基沉陷评估及应用

为了评估北八特采空区沉陷对拟建青兰高速公路的影响,对北八特采煤区地表沉陷进行了预测分析,结果表明北八特采空区地表变形大且尚未稳定,残余地表变形超出了高速公路地表允许的变形极限值,因此建议对拟建高速公路进行采空区回填处理或改线。

Evaluation and Application on Roadbed Subsidence of Beibate Mining Area

To evaluate the effect of the subsidence of Beibate mining area on the Qing-lan highway,the early warning analysis for the subsidence damage of Beibate mining area is performed.Our main conclusions are as follows：the surface deformations of Beibate mining area is large and not yet stable,and more than the deformation limits of the highway which may be accepted,so gob fiuing treatment or change line for proposed highway is advised.