鲁布革水电站心墙堆石坝应力应变计算与原型观测成果对比分析

鲁布革水电站心墙堆石坝采用总应力法和有效应力法计算程序进行计算和分析。成果表明：总应力法比有效应力法大些；平面有限元比三维有限元大些。如心墙的最大沉降值；平面总应力法比平面有效应法大１９．５％，平面有效应力法比三维大１０％左右；有效应力法与原型观测值比较接近。总的看来应力和位移的分布规律大体上一致。

Compare analysis of stress strain calculations with the prototype observation results of the Lubuge core type rockfill dam

The calculation and analysis of the core type rockfill dam of Lubuge Hydropower Station are conducted by the programs of total stress method and effective stress method.It shows that the calculation results from the total stress method are larger than that of the effective stress method and the results of the plane finite element method are larger than that of the three dimensional finite element method.For example,the maximum settlement of the core wall calculated by the plane total stress method is 19 5% larger than that by the plane effective stress method but the latter is about 10% larger than that by the three dimensional finite element method.And the results by the effective stress method is close to that from the prototype observation.The distribution laws of stress and displacement are generally consistent.