基于SLOPE/W的某小型水库初设坝坡稳定复核

２０世纪六七十年代兴建的水库，大多属于“三边”工程，现今存在不同程度病险问题，急需对其 进行加固处理，实现水库的继续安全运行。结合陕西省某小型水库除险加固工程探讨ＳＬＯＰＥ／Ｗ软件在 大坝除险加固初设坝坡稳定性复核中的应用问题，论述了ＳＬＯＰＥ／Ｗ软件的功能、工作原理、数值模拟步 骤，计算出该库现状大坝在正常应用及非常运用情况下上游、下游坡稳定安全系数，判断出其渗流不稳 定，并对坝体进行加固后的坝坡各工况稳定性进行复核，验证了加固设计的合理性。此种方法在其他１２ 座小型水库除险加固中推广应用，效果良好。实践证明利用ＳＬＯＰＥ／Ｗ平台分析坝坡稳定性问题，具有 速度快、可靠性高的优点

Dam Slope Stability Recheck after the Preliminary Design of a Small Rese rvoir Based on SLOPE/W

The reservoirs constructed in the last sixties and seventies in Shaanxi Province have different level of safety is-sues and the needs for reinforcement are necessary to maintain the safe operations of the reservoirs .This paper adopted the SLOPE/W software to recheck a dam slope stability ,the functions ,principles and simulation processes were intro-duced first ,after which an example of a small reservoir from Shaanxi province was finished .The present situation of the library of dam in normal application and veries use conditions of the upstream and downstream was calculated to verify the safety coefficient of the slope stability ,the results revealed that the seepage was not stable ,and the stability of dam slope under different operation conditions was rechecked and thus the rationality of the reinforcement design was verified .This method was also adopted in other 12 small reservoirs and the results were good .It can be concluded that SLOPE/W can be adopted to analyze the slope stability of reservoirs and has advantages like advantage of fast speed ,high reliability .