猴子岩水电站格宗移民安置点场地边坡治理设计优化

Design Optimization of Slope Treatment of Gezong Resettlement Site in Houziyan Hydropower Station

结合猴子岩水电站格宗移民安置点场地地理位置、地形地貌,对格宗乡一带斜坡进行地质分区,针对安置点影响较大的场地右岸边坡进行重点分析,并根据其影响范围、危害程度,分别确定边坡安全稳定控制标准,以及结合暴雨、地震工况下边坡稳定现状,反演岩土体真实力学参数进行复核计算,并辅以必要的安全监测手段,最终确定边坡优化处治方案,与初步设计方案相比节约投资2.26亿元、减少永久征地10.67hm^2(160亩)。

Combining the geographical location and topography of the Gezong resettlement site of the Houziyan Hydropower Station, the geological zoning of the slopes in the Gezong Township area is carried out, and the right bank slopes of the site with great influence on the resettlement sites are selectively analyzed, and according to influence scope, the degree of hazard of slopes, the safety and stability control standard of slope are respectively determined, and combined with the status quo of slope stability under heavy rain and earthquake conditions, the real mechanical parameters of rock and soil are inversely calculated for review and check, and the necessary safety monitoring means are supplemented to finally determine the slope optimization scheme. The treatment plan saves 226 million yuan compared with the preliminary design plan and reduces the permanent land acquisition by 10.67 hm^2 (160 mu).