山东某铁矿区地面塌陷成因判别及其意义  

Causes discrimination of land collapse in a iron mine in Shandong Province and its significance

作　　者：高宗军[1] 王庆兵[1,2] 段秀铭 吴丽莉 

机构地区：[1]山东科技大学,山东青岛266510 [2]山东省地质环境监测总站,山东济南250014

出　　处：《中国地质灾害与防治学报》2010年第2期55-58,共4页The Chinese Journal of Geological Hazard and Control

基　　金：国家自然科学基金(40772145)

摘　　要：山东省济南市东郊某在建铁矿,于2009年7月产生了严重的地面塌陷。通过环境地质调查发现,该矿区地面塌陷并非通常所说的采空区塌陷,而是岩溶地面塌陷。该结论为矿山地面塌陷防治提供了依据,更重要的是否定了第四系厚度大(大于35m)不能产生岩溶地面塌陷的已有认识,并预示隐伏岩溶发育地区,随着上覆松散土体厚度的加大,一旦产生岩溶地面塌陷,其规模和危害也将随之增大。Severe land collapse happened in a constructing iron mine on July,2009,which is in eastern suburbs of Jinan City,Shandong Province.It is proved by environmental geological survey that the land collapse is not commonly referred as collapse of mined-out area,but karst collapse.The conclusion can provide basis for prevention and control of mine land collapse,and more importantly,it is negative for the existing theory that thick Quaternary（greater than 35m）can not produce Karst collapse,futhermore,it indicates that,in hidden karst area,with the increase of overlying loose soil thickness,once karst land collapse happens,its extent and damage will be even greater.

关 键 词：铁矿 地面塌陷 成因判别 岩溶水排放 山东省济南市 

分 类 号：P642[天文地球—工程地质学]