21世纪上海城市发展的若干环境地质问题

随着上海城市建设进程加快。人类工程—经济活动增加，城市地质作用强度加大，城市环境地质问题日益突出。本文书从上海城市环境地质现状和２１世纪发展角度对上海城市建设的作用特征与影响，如上海地面沉降问题、地下水质污染问题、外高桥软土地层中沼气囊体对地下建筑物（如地下商场、隧道等）影响问题以及在未来年代中海平面上升与地面沉降共同作用对上海市政建设的制约等进行论述。在对上海城市环境地质条件具有特殊意义的自然型环境地质论述的同时，着重讨论了与人为因素关系密切的城市环境地质问题对上海城市可持续性发展的影响。

Problems of Environmental Geology of Shanghai Urban Development in the 21st Century

With the acceleration of construction process in Shanghai, increase in an- thropologic engineering economic activities and the intensity of the role played by urban geology , the problems of urban environmental geology in Shanghai and its development in the 2lst century, this paper expounds the features and influence of problems of environ- mental geology , such as the ground settlement in Shanghai , the pollution of groundwater , the effect of methane pockets in the soft stratum at Waigaoqiao on underground structures ( underground markets , tunnels etc . ) and the restriction of the municipal construction in Shanghai due to the co - action of the rise of sea level with the ground settlement in the years to come . Dealing with the effect of the natural environmental geology which has special significance for the environmental geological conditions of Shanghai , it also discusses the influence of urban environmental geology , which is closely related with human factors on sustainable development of Shanghai City.