《南水北调与水利科技》：丹江口大坝加高工程溢流坝段闸墩植筋加固试验（郭武山,李方清,胡雨新,袁云桥,谭明军）（摘要）

摘要：丹江口水利枢纽初期工程溢流坝闸墩配筋率偏小（仅为0.043%），按现行规范，钢筋混凝土构件最小配筋率为0.15%，为此应补充部分钢筋进行闸墩加固，使之满足规范要求。经设计研究确定，闸墩加固采用钻孔植筋方式，钻孔植筋沿闸墩周边进行。正式开工之前，首先进行了闸墩植筋试验，通过现场工艺试验和室内灌注材料试验，熟悉和掌握灌注材料性能，优化植筋钻灌施工工艺，确定人员及设备最佳配置方法。

关键词：南水北调；大坝加高；闸墩；植筋；试验

中图分类号：TV642；TV522 文献标识码：B 文章编号：1672-1683（2008）01-0283-03

Reinforcing Bar of Spillway Pier in Danjiangkou Dam Heightening Project

GUO Wu-shan1,Li Fang-qing1,HU Yu-xin1,YUAN Yun-qiao1,TAN Ming-jun2

(1.Mid-Route Water Source Co.Ltd of the South-to-North Water Transfer,Danjiangkou 442700,China;

2.China Gezhouba(Group)Corporation,Yichang 443002,China)

Abstract:Spillway pier reinforcement rate of Danjiangkou initial project is too small (only 0.043%) ,in accordance with existing norms,the minimum reinforcement rate of concrete component is 0.15%,so some steel reinforcement for piers should be added to meet the standard requirements.By the study design,boring is used to planting steel bar along the perimeter for reinforcing piers.Before working starts,test of spillway pier planting steel bar is performed.Through locale technics testing and infusion materials testing indoor,we can master the material performance,and optimize planting steel bar and drilling and grouting technology,determine the best allocation method of equipment and personnel.

Key words:South-to-North Water Transfer;dam heightening;spillway pier;planting steel bar;test

参考文献：

[1]徐德龙，黄胜华，陈志康，等.丹江口水利枢纽大坝加高工程初步设计报告[R].武汉：长江勘测规划设计研究院，2004.

[2]王从兵，文军，王莉，等.丹江口大坝加高左岸土建施工及金结设备安装招标文件[R].武汉：长江勘测规划设计研究院，2005.

作者简介：郭武山（1969-）男，湖北谷城人，高级工程师，目前从事丹江口大坝加高工程建设管理工作。

来源：《南水北调与水利科技》2008年第1期