上海地面沉降及其对城市安全影响

地面沉降是上海最主要的地质灾害.半个多世纪以来,地面沉降已使上海区域地貌形态发生显著变化,目前中心城区高程普遍小于3.5m.监测资料表明,累计地面沉降总量对城市防汛产生重大影响,而地面沉降在空间上的发育不均匀性,对穿越不同地面沉降速率空间的线性城市基础设施的安全运营影响是严重的.

Land subsidence and its influences on Urban Security of Shanghai

Land subsidence,the most important geological disaster in Shanghai,has altered the regional topography of Shanghai notably in the past half century.As a result,the elevation of the urban area in Shanghai is generally down to <3.5 m at present.The presented monitoring data in Shanghai indicate that land subsidence has adversely influenced the flood controlling remarkably,while its unevenness in space,has further affected the secure operating of urban linear infrastructures across different land subsidence su...