上海崇明越江通道工程环境地质问题及其防治

Environmental Geological Problems and the Prevention for Shanghai Chongming Thoroughfare Engineering Across the Changjiang River

上海崇明越江通道工程是长江河口地区重要的国家基础性建设项目,所在区域不良地质条件易给工程施工带来不利影响。文章阐述软土变形、水土突涌、水下砂体运移、浅层天然气、岸带冲淤、砂土液化、地面沉降等环境地质问题及其潜在的工程危害,提出相应的防治对策与技术措施。

Shanghai Chongming thoroughfare engineering is a national important basic construction project in estuarine area of the Changjiang River. The unfavorable geological condition around exerts harmful effects on construction. The environmental geological problems such as soft soil deformation, water and soil piping, sand movement underwater, shallow natural gas＇ danger, beach erosion and deposition, sand liquefaction and land subsidence, etc., together with their harmful effects on engineering are expatiated, and relevant preventive measures are put forward.