烂泥山水库沥青混凝土心墙坝抗震安全分析

Seismic Safety Analysis of Asphalt Concrete Core Wall Dam of Lannishan Reservoir

沥青混凝土心墙坝是一种水利工程的坝型设计,其核心部分是使用沥青混凝土作为心墙。为了提高沥青混凝土心墙坝的抗震安全性,以贵州省铜仁市碧江区烂泥山水库工程为研究对象,结合坝体材料空间变异性与随机地震动进行随机响应分析。实验结果表明,综合材料空间变异性和随机地震动两种随机因素的坝顶水平峰值加速度更大,分别为4.48 m/s^(2)、5.68 m/s^(2)。研究方法对烂泥山沥青混凝土心墙坝抗震安全分析具有一定的参考价值。

Asphalt concrete core wall dam is a kind of dam type design of water conservancy project,and its core part is to use asphalt concrete as the core wall.In order to improve the seismic safety of asphalt concrete core wall dam,the Lannishan Reservoir Project in Bijiang District,Tongren City,Guizhou Province was taken as the research object,and the random response analysis was carried out in combination with the spatial variability of dam materials and random ground motion.The experimental results show that the horizontal peak acceleration of the dam crest is larger,which is 4.48 m/s^(2)and 5.68 m/s^(2) respectively,considering the spatial variability of materials and random ground motion.It can be seen that the research method has certain reference value for the seismic safety analysis of Lannishan asphalt concrete core wall dam.