坝下埋管混凝土面板堆石坝关键技术研究及应用  

Research and Application of Key Technology of Concrete Face Rockfill Dam with Buried Pipe under Dam

作　　者：王康柱[1] 张曼曼[1] 陈树联[1] 雷艳[1] 伍鹤皋[2] 张建民[3] WANG Kangzhu;ZHANG Manman;CHEN Shulian;LEI Yan;WU Hegao;ZHANG Jianmin(PowerChina Northwest Engineering Corporation Limited, Xi'an 710065,China;Wuhan University, Wuhan 430072,China;Tsinghua University, Beijing 100084,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安710065 [2]武汉大学,武汉430072 [3]清华大学,北京100084

出　　处：《西北水电》2020年第1期1-10,共10页Northwest Hydropower

摘　　要：混凝土面板堆石坝坝下埋管存在压力管道渗漏引起坝体接触冲蚀破坏及埋管坝段与主河床坝段的不均匀沉降变形。为此,开展坝下埋管混凝土面板堆石坝在压力管道结构、大坝的填筑料、填筑分区、面板及分缝止水、坝下埋管部位安全监测、大坝静动力应力应变分析、大坝渗透稳定性、施工方法、大坝预沉降技术等方面进行了研究,其研究成果已经在青海积石峡水电站和新疆哈巴河山口水电站应用并获得成功,该成果可应用于相类似的混凝土面板堆石坝工程。Leakage of pressure pipes under concrete faced rockfill dam causes contact erosion of the dam body and uneven settlement deformation of the buried dam section and the main riverbed dam section.Therefore,concrete faced rockfill dam with buried pipes under the dam is studied from the aspect of safety monitoring of the pressure pipe structure,the dam's filling material,the filling subarea,the faced slab and the waterstop joints,analysis on the static and dynamic stress and strain of the dam,dam seepage stability,construction scheme and dam sedimentation technology.The research results have been successfully applied in Qinghai Jishixia Hydropower Station and Xinjiang Habahe Shankou Hydropower Station.The result can be applied on similar concrete faced rockfill dam project.

关 键 词：积石峡水电站 复式河谷 坝下埋管 混凝土面板堆石坝 

分 类 号：TV641.43[水利工程—水利水电工程]