水闸是低水头的挡水兼泄水建筑物,在水利工程中的应用量大、面广。我国强震震害资料表明,在地震作用下,水闸的破坏主要为底板、护坦、消力池等底部结构开裂,各部位伸缩缝错动,导致止水破坏、闸墩开裂、翼墙倾斜、机架桥支架断裂甚至倒塌等。目前,对地震时的砂土液化和软基震陷等问题,国内外都有所研究,并提出了一些估算方法和判断指标,但尚难进行定量计算,故只作为选择闸址和确定是否需要对地基进行 The sluice is a low-head retaining and venting structure, which is widely used and widely used in water conservancy projects. The data of earthquake damage in China shows that under the earthquake, the sluice of the sluice is mainly caused by the cracking of the bottom structure such as floor, retaining tank and stilling pool, and the expansion joints in all parts are staggered, leading to the failure of water stoppage, cracking of sluice pier and tilting of wing wall , Rack bridge fracture or collapse and so on. At present, some researches have been done both at home and abroad on the problems of sand liquefaction and soft subsidence at the time of earthquake, and some estimation methods and judgment indexes are proposed, but it is difficult to calculate quantitatively so it is only used as a choice of gate and whether Need to be done on the foundation