煤矿采空区上部建筑物沉降观测数据分析

Analysis on the settlement data of the buildings above mine goaf

煤矿井下开采过程中,顶板垮落造成采空区上部地面建筑物整体沉降,虽然通过井下采空区回填技术和合理工作面预留保安煤柱可以缓解地表下沉,但是随着时间的推移,地表建筑物出现下沉的现象仍不可避免。通过对煤矿采空区上部建筑物沉降点进行的观察、分析,最后得出完整的建模方程,从而找到建筑物下沉的一般规律,为以后煤矿采空区上部施工建筑物提供参考。

In the process of coal mine underground mining,through the backfill technology of mined-out area and leaving safety coal pillar,the ground subsidence can be relieved. But with the passage of time,the subsidence phenomenon of surface buildings is inevitable. By the observation and analysis of the subsidence points of the ground buildings above mine mined-out areas,the subsidence laws of ground buildings were summarized and the modeling equation was deduced. The research can provide a reference for the construction of ground buildings above mined-out areas.