鲁地拉、功果桥水电站施工组织设计关键技术  

Key Technologies of Construction Planning Design for Ludila and Gongguoqiao Hydropower Stations

作　　者：黄天润[1] HUANG Tianrun(PowerChina Xibei Engineering Corporation Limited,Xi'an 710065,Shaanxi,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,陕西西安710065

出　　处：《水力发电》2020年第9期5-8,36,共5页Water Power

摘　　要：鲁地拉、功果桥水电站枢纽工程均采用碾压混凝土重力坝、地下厂房、表孔与底孔泄洪布置形式;施工导流均采用枯水期围堰挡水,汛期导流洞和基坑(或坝体缺口)联合度汛的导流方式。大断面导流隧洞布置与施工、过水围堰、缺口导流、PL掺合料、干热河谷大坝混凝土温控防裂等问题是工程施工组织设计的关键技术问题。在可研、招标、技施设计阶段开展了大量的科研试验与研究工作,取得了系列关键技术研究成果,并应用于工程建设,取得了显著的技术经济效益。Both the Ludila and Gongguoqiao hydropower station projects adopt the general layout patterns of RCC gravity dam,underground powerhouse,and flood discharge by surface and bottom outlets.For the construction diversion,a cofferdam is used for water retaining in low flow period,and the diversion tunnel and foundation pit(or gap in dam body)are jointly used for flood control in the flood season.The key technical issues involved in the construction planning design of projects include the layout and construction of diversion tunnel with large cross section,the overflow cofferdam,the dam-gap diversion,the PL admixture,and the temperature control and crack prevention of dam concrete in dry-hot river valleys.A large number of scientific researches and experiments are carried out in the stages of feasibility study,tendering and detail design,and a series of key technical achievements are obtained.These achievements have been applied to the project construction and brought remarkable technical and economic benefits.

关 键 词：过水围堰 缺口导流 PL掺合料 温控防裂 鲁地拉水电站 功果桥水电站 

分 类 号：TV698.24(274)[水利工程—水利水电工程]