三河口碾压混凝土拱坝河谷段建基面优化研究  

Valley Foundation Surface Optimization of the Sanhekou RCC Arch Dam

作　　者：王栋[1] 赵玮[1] 张建华[1] 蒋锐[1] 董鹏 WANG Dong;ZHAO Wei;ZHANG Jianhua;JIANG Rui;DONG Peng(Shaanxi Province Institute of Water Resources and Electric Power Investigation and Design, Xi＇ an , Shaanxi 710001, China;Hanjiang-to-Weihe River Water Diversion Project Construction Co. , Ltd. , Xian,Shaanxi 710010, China)

机构地区：[1]陕西省水利电力勘测设计研究院,陕西西安710001 [2]陕西省引汉济渭工程建设有限公司,陕西西安710010

出　　处：《水利与建筑工程学报》2018年第2期173-177,共5页Journal of Water Resources and Architectural Engineering

基　　金：陕西省水利科技项目(2015slkj-16)

摘　　要：三河口碾压混凝土拱坝初步设计坝高145m,其突出特点为河谷较宽,坝体方量大。在开挖施工过程中,经过地质系统勘察和分析,河谷段建基面高程可以由初步设计的501m抬高至504.5m;在水工结构设计方面,参考地质结论优化调整了拱坝体形,同时完成了坝体应力、应变、拱端推力、基岩参数敏感性等分析复核工作。经分析,将三河口拱坝河谷段建基面优化后,其对坝体应力影响不大,且坝肩稳定条件更为有利,同时节省投资,缩短工期,具有显著的经济、社会效益。The Sanhekou RCC arch dam is 145 min the preliminary design stage,which is characterized by the wide valley and large volume.In the excavation process,through the investigation and analysis of geological system,valley foundation surface could up to 504.5 mfrom 501 mof the preliminary design.In the hydraulic structure design,the shape of arch dam was adjusted considering geological conclusion,this paper completed the dam stress,strain,arch thrust,parameter sensitivity analysis review work and so on.After analysis,the optimization of the foundation surface of the Sanhekou RCC arch dam has little effect on the stress of the dam,and the stability condition is more favorable,while saving investment and shortening the construction period,which has significant economic and social benefits.

关 键 词：碾压混凝土 拱坝 建基面 优化 投资 

分 类 号：TV642.2[水利工程—水利水电工程]