摘要
地下采空区诱发地表沉降,并对拟建工程构成安全隐患。山东省临沂市西外环改建项目涑河—祊河段为煤炭采空区,为了查明采空区对拟建项目的影响,采用微重力勘探手段,结合资料搜集、钻探验证等综合勘探法,探明了采空区类型、分布范围和埋藏深度以及覆岩变形破坏规律等,并评价了采空区地面塌陷现状稳定性及对拟建工程的危害程度。
Underground mined-out area induces the surface subsidence,and also threaten to the proposed project. In order to find out the effect of the Su River-Beng River section mined-out area on the proposed West Outer Ring Road reconstruction project in Linyi City in Shandong Province,the micro-gravity exploration,data acquisition, drilling verification and other comprehensive exploration methods are applied. The type,the distribution range,the burial depth of mined-out area and the deformation and failure laws of the overburden rocks are ascertained. The present situation stability of the ground subsidence in the mined-out area and the damage degree to the proposed project are evaluated.
出处
《工程勘察》
2017年第8期66-73,共8页
Geotechnical Investigation & Surveying
关键词
地下采空区
微重力
地质钻探
地面塌陷
稳定性评价
underground mined out area
microgravity
geological drilling
ground subsidence
evaluation of stability
