用DEM法预测复合滑动面岩体的稳定性

根据一档水条形山体测压管水位的原型观测资料，用确定性函为九法和物质推断法建立测压管水位与库水位、降雨、时效等因素有关的统计模型和预报方程，由预报方程预测条形山体在高水位和不利降雨情况下的地下水位，从而同山体可能滑动面上的上举力，在岩体自重和上举力共同作用下，用分解平衡法（Ｄｅｃｏｍｐｏｓｉｎｇ Ｅｑｉｌｉｂｒｉｕｍ Ｍｅｔｈｏｄ）求其可能滑动体的稳定安全系数，从而判断其稳定性。

Stability Forecast of Multi-Slip Surface of a Rock Block with Decomposing Equilibrium Method

Based on observed protype data of piezometer level in a long narrow mountain body used as a part of water-retaining structure, a statistical model and prognosis equation of piezometer level related with reservoir level, rainfall and time effect are found by determinate function method and physical inference method. The ground water level in the long norrow ridge of the mountain is forecasted for high reservoir level and disadvantageous rainfall. Under action of uplift forces on the possible slip surface and the self weight of the rock block, the stability safety factor of the possible slip rock block is calculeted by Decomposing Equilibrium Method and the stability is judged.