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济南章丘市多有小型滥采煤矿和黏土矿的采空区分布。拟建厂房在基坑底部发现多处回填采井后,先采用直流激电测深物探圈定采空塌陷范围,再进行钻探验证,基本查明了采空区的类型、规模和分布范围,指导了下一步注浆填充处理,可为类似采空区地基的工程建设提供一定参考。
Zhangqiu City, Jinan City, more than a small indiscriminate mining coal and clay mined area distribution. After several backfilling wells are found at the bottom of the foundation pit, the scope of the goaf was delineated by direct-current voltametry and then verified by drilling. The type, size and distribution range of the goaf were basically inspected The next grouting filling process can provide some reference for the construction of similar goaf foundation.