水库浸没对建筑物影响分析与评价标准研究

Study on impact of reservoir immersion on buildings and its evaluation standard

现行水库建筑物浸没判别标准没有考虑地下水位抬升对地基土层工程特性的影响,也没有考虑附加应力的影响深度,对工程特性差的地基存在一定的风险。指出水库对建筑物浸没影响可分为直接影响(或地下水影响)和间接影响(或强度影响),重点研究地下水位抬升对建筑物地基承载力、变形参数的影响及可能产生的附加变形,分别提出直接影响临界深度计算公式、承载力影响临界深度计算公式及附加变形影响的评价方法。

In the existing reservoir immersion identification criteria, the influence of groundwater level rise on engineering properties of foundation soil is not considered, nor the influence depth of additional stress, which threatens the security of founda- tion with poor engineering properties. The influence of reservoir immersion on buildings can be classified as direct influence （ or groundwater influence） and indirect influence （ or intensity influence）. The influence of groundwater elevation on bearing capaci- ty, deformation parameters of foundation and the possible additional deformation were focused. The direct influenced critical depth formula and critical depth formula of influenced bearing capacity, as well as influence assessment methods for additional deformation are proposed respectively.