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（1 濰坊學(xué)院  濰坊市 261061；2 濰坊市建筑設(shè)計(jì)院  261041）
【提要】介紹了四個(gè)地質(zhì)環(huán)境變異導(dǎo)致的工程事故。諸事故的肇事原因都與水有關(guān)，一種是地下水被抽走，后又回灌，從而在土層內(nèi)形成塌陷；一種是潛流的強(qiáng)力沖刷造成地基塌陷；一種是少見的大旱使膨脹土發(fā)生干縮；一種是土壤中堿液濃度過大造成土壤濕陷。這些現(xiàn)象非常少見且難以預(yù)料，對(duì)勘察設(shè)計(jì)者具有指導(dǎo)意義。
【關(guān)鍵詞】地質(zhì)環(huán)境變異  裂縫  地下水  膨脹土  化學(xué)污染
Analysis on Building Cracks Caused by Geological Environment Variation/Yu Jingjie1, Ma Shixi2(1 Weifang University, Weifang 261061, China; 2 Weifang Architectural Design Institute, Weifang 261041, China)
Abstract:Through concrete examples, the causes of four project accidents related with water owing to geological environment variation are analyzed. The first cause is that groundwater pumped out and affused again. Consequently the inner earth caved in. The second is that the undercurrent mightily washed out and caused groundwork caving in. The third is that the exceptional and serious drought made the expansive soil dry and shrinking. The fourth is that too thick alkali liquid in the soil led to the cavein because of water. All these phenomena are rarely appearing, and hardly predicted.The project accidents are instructive to reconnaissance architects.
Keywords:geological environment variation；cracks; groundwater; expansive soil; chemical pollution