上海地质
上海地質
상해지질
2009年
1期
34~39
,共null页
魏子新 王寒梅 吴建中 方志雷 刘国彬
魏子新 王寒梅 吳建中 方誌雷 劉國彬
위자신 왕한매 오건중 방지뢰 류국빈
地面沉降 城市安全 防汛墙 地铁
地麵沉降 城市安全 防汛牆 地鐵
지면침강 성시안전 방신장 지철
Land subsidence, Urban security, Flood control Wall, Subway
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。
地麵沉降是上海最主要的地質災害。半箇多世紀以來,地麵沉降已使上海區域地貌形態髮生顯著變化,目前中心城區高程普遍小于3.5m。鑑測資料錶明,纍計地麵沉降總量對城市防汛產生重大影響,而地麵沉降在空間上的髮育不均勻性,對穿越不同地麵沉降速率空間的線性城市基礎設施的安全運營影響是嚴重的。
지면침강시상해최주요적지질재해。반개다세기이래,지면침강이사상해구역지모형태발생현저변화,목전중심성구고정보편소우3.5m。감측자료표명,루계지면침강총량대성시방신산생중대영향,이지면침강재공간상적발육불균균성,대천월불동지면침강속솔공간적선성성시기출설시적안전운영영향시엄중적。
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 generally down to 〈 3.5 m at present. The presented monitoring data in Shanghai indicate in Shanghai is 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 subdivisions.