盘石头水库泄洪洞、导流洞进出口高边坡稳定性分析

STABILITY ANALYSIS ON HIGH SLOPES AT OUTLET AND INLET OF THE DIVERSION AND SPILLWAY TUNNELS OFPANSHITOU RESERVOIR

首先分析了边坡工程地质条件,对边坡岩体进行了工程地质岩组划分,对岩体参数进行分析,提出该区边坡破坏模式,然后利用定性定量多种方法对边坡在各种工况条件下的稳定性进行了评价。

After systematically analyzing the engineering geological conditions of the high slopes at both the outlets and inlets of the two tunnels of the Panshitou Reservoir,Henan province,a classification of the engineering geological rock groups of the high slopes is made,then the slope failure models are proposed. The rockmass mechanics parameters of the slopes are also discussed. Based on these,stereographic projection method,limit equilibrium method and three-dimensional differential method (FLAC3D 2.00 for Windows) are used for stability evaluation of the slopes.