戈兰滩碾压混凝土坝设计特点与快速施工综述

A Summary of the Design Characteristics and Fast Construction of the Roller Compacted Concrete Gravity Dam of the Gelantan Hydropower Project

戈兰滩水电站地处云南南部亚热带季风气候地区,大坝为全断面碾压混凝土重力坝,最大坝高113 m,共分16个坝段,坝顶长466 m。坝体碾压混凝土设计94万m3,常态混凝土约24.5万m3。从2006年9月至2008年7月碾压混凝土施工完毕,浇筑时段仅20个月,这在国内同类坝型中筑坝速度是首屈一指的。

The Gelantan Hydropower Project is located in a subtropical monsoon climate region in south Yun- nan and its water retaining structure is a full - section roller compacted concrete gravity dam with max. height of ll3m and dam crest length of 466m, composed of 16 dam blocks. The dam body consists of 940,000m^3 of roller compacted concrete and 245,000m^3 of normal concrete according to the design. The placement of roller compacted concrete was completed in a period of only 20 months from September 2006 to July 2008, which shows that its speed comes the first in construction of darns of this kind at home.