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上海市是我国地面沉降发生最早、最严重的城市之一 .其地面沉降灾害表现为渐变性、人为性、阶段性、可控性等特性 .80年的持续沉降不仅直接造成对安全高程、市政基础设施、房屋等建筑物的破坏 ,而且还通过安全高程的丧失加剧了其它自然灾害特别是潮涝灾害对社会经济发展的破坏 ,造成了巨大的经济损失 .正确认识上海市地面沉降灾害特点及其危害 ,有利于有关部门制定科学而有效的地面沉降减灾防灾政策和措施 .
Shanghai is one of the earliest and most serious urban land subsidence in our country, and its surface subsidence disaster is characterized by gradualness, man-made, stage and controllability.80 years of continuous subsidence not only directly caused the safety elevation, Infrastructures, buildings and buildings, but also aggravate the damage to social and economic development caused by other natural disasters, especially flood and waterlogging disasters, resulting in huge economic losses through the loss of safety standards and a correct understanding of the characteristics of land subsidence disaster in Shanghai and Its harm is conducive to the relevant departments to develop scientific and effective disaster prevention and control measures and measures of land subsidence.