水位消涨对地基侵蚀作用及实例分析*

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Abstract According to field investigation，research and analysis on surrounding environment condition，the hydraulic overflow problem of the foundation of an international container heap field in Hefei city，the splict problem of the Hefei Mosque，the internal scour problem of a market-house foundation in Shitai county，Anhui province，are discussed. It is thought that the rapid change of hydrogeological condition in site，and the erosion action by water level rising and descending on foundation are the major reasons for the above three problems. During a building’s constructing and using，the variation of natural condition and the effect of human being’s building action often rapidly change the engineering geological condition in site，and give rise to new engineering geological problems，such as the compression of foundation soil，ruffle of soil structure or filtration deformation. The rising of groundwater often makes foundation soil and cushion soften，strength fall or underconsolidated soil collapse. The descending of groundwater often makes hidden soil caves collapse，foundation settle or leads to internal scour. Geotechnique engineers should pay more and more attention to the problem of environment geology to keep engineering safe and stable and reduce the economic loss resulting from deterioration of enviroment.

Key words： groundwater internal scour foundation softening environment geology

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https://rockmech.whrsm.ac.cn/EN/Y2002/V21/I08/1276