摘要
工程建设逐渐成为上海近年来新的地面沉降制约因素。本文选择 4个典型的高层建筑及多层建筑密集区段 ,分析了建筑密度与地面沉降的关系 ,探讨了其时空变化特征。建筑规模及其增长速度直接导致工程性地面沉降同步增长 ,集中建设较分散建设、新区建设较旧城改造、高层建筑较多层建筑地面沉降效应明显。建筑密度越大 ,建筑容积率越高 ,地面沉降越显著。城市规划宜选择低密度、低容积率的建设模式 ,降低建筑高度、扩大建筑间距。提出了沉降控制条件下适宜的建筑容积率应在 0 9～ 1 2之间 ,从而为城市规划提供了决策性技术指标。
The engineering construction gradually becomes the new factor for causing the land subsidence in Shanghai in recent year. Four typical sections of high\|rise and tier building dense area are selected, and the relationships between density and land subsidence are analyzed, and their space\|time change character is also discussed in this paper. The construction scale and its developing speed are directly caused the land subsidence in the meantime. The land subsidence effect is obvious just as centralized construction is bigger than dispersed construction, new area construction is bigger than old inhabited area, high\|rise building is bigger than low\|rise building. In other words, the land subsidence is remarkable in high construction density and high building volumetric fraction. The urban planning may choose the construction way of low dense and low volumetric fraction, may lower the building height, and may enlarge the distance between two buildings. The feasible building volumetric fraction is 0 9～1 2 under the land subsidence control, it may provide a technique index for urban planning.
出处
《水文地质工程地质》
CAS
CSCD
2002年第6期21-25,共5页
Hydrogeology & Engineering Geology
关键词
上海
地面沉降
工程性沉降
建筑密度
建筑容积率
沉降控制
城市规划
land subsidence
engineering subsidence
building density
building volumetric fraction
subsidence control
urban planning
