Abstract: The impact of reservoir construction on environment is increasing. Geological safety is very important, and the surface deformation is the key point affecting geological safety. But at present, the analysis of surface deformation response is rare. By calculating the load love number of water body and according to the surface load response elasticity theory, the surface deformation in vertical and horizontal derections after impoundment is calculated, and the results are analyzed quantitatively to provide basis for geological safety evaluation.

Key words: love number of water load, load response elasticity theory, surface deformation, variation of water level

摘要： 水库建设对环境造成的影响越来越大，地质安全是其重要的组成部分，而地表形变是影响地质安全的关键环节，但目前关于地表形变响应的分析很少。通过计算水体负荷勒夫数，依据地表负荷响应弹性理论，对蓄水后地表垂直和水平方向的形变量进行计算，并对结果值进行定量分析，为地质安全评价提供依据。

关键词: 水体负荷勒夫数, 负荷响应弹性理论, 地表形变, 水位变化值