锦屏一级水电站左坝肩边坡固结灌浆的数值模拟

Numerical Simulation of Consolidation Grouting in Side Slope at Left Abutment of Jinping Ⅰ Hydropower Station

以锦屏一级水电站左岸坝肩抗力体固结灌浆为研究背景,在已有的裂隙岩体灌浆研究的基础上,建立数学模型,推导出单孔灌浆压力在岩体裂隙中的分布规律,从而得出临近灌浆孔灌浆压力相互叠加值,在边坡分析模型中假定灌浆压力直接作用于结构面,得出灌浆压力对边坡的影响。

On the basis of the consolidation grouting in slope at the left abutment of Jinping I Hydmpower Station under construction and based on the previous researches on grouting for fissured rock mass, a mathematical model is set up and the distribution rule of the single grouting pressure in rock fissures is arrived at, so as to obtain the mutually superposed value of the grouting pressure close to the grouting hole. Supposing that the grouting pressure acts directly on the surface of structure in the analysis of the model, the effects of the grouting pressure on the side slope are obtained.