水库浸没对建筑物区的影响与处理方案研究

Influence of reservoir inundation on structures area and treatment measures

受库岸地层地质特性及地下水等因素影响,一些水电工程库区淹没迁建高程以上的居民房屋,也可能受到侵渍或淹没损害。以小南海水电站为例,介绍了库岸建筑物地基地层、岩性情况以及地下水现状。通过现场试验、室内试验以及参考其他工程经验,综合分析并提出了典型库段建筑物区浸没地下水埋深的建议临界值,研究了地下水壅高及浸没对建筑物的安全影响,对影响程度进行分级划定,并提出了相应的工程处理方案。

The houses in the reservoir area beyond the inundation elevation may be affected by the reservoir inundation. The foundation, lithology and groundwater situation of the buildings in reservoir area of Xiaonanwan Hydropower Station are intro- duced. Through in - situ experiment, laboratory test and referencing the experiences of other projects, the suggested critical value of groundwater depth in the buildings area of typical reservoir beach is analyzed and proposed. The influences of run - up of groundwater and inundation on buildings safety are studied. Furthermore, the influences are classified and the corresponding en- gineering treatment measures are put forward.