土工基础

›› 2017, Vol. 31 ›› Issue (5): 642-644.

• 工程实录 • 上一篇    下一篇

Kubia水电站大坝混凝土裂缝成因分析

高小鱼   

  1. （中国水利水电第三工程局有限公司，西安 710032）
  • 收稿日期:2016-10-18 修回日期:2016-10-31 出版日期:2017-10-20 发布日期:2017-10-29
  • 作者简介:高小鱼（1974-），男，高级工程师，研究方向为水电工程施工。

Factors Caused the Dam Cracking of Kubia Hydropower Project

GAO Xiaoyu   

  1. (Third Engineering Co. Ltd., ChinaHydraulic Engineering Bureau, Xi’an 710032)
  • Received:2016-10-18 Revised:2016-10-31 Online:2017-10-20 Published:2017-10-29

摘要： Kubia水电站大坝出现裂缝，影响因素主要是坝体内外温差、混凝土干缩、自生体积变形和外部约束作用等几方面。分别对此裂缝问题进行了探讨分析，并针对具体情况提出了一些预防、处理措施，裂缝经处理后该坝体处于受控状态，未影响正常使用。

关键词: 碾压混凝土重力坝, 裂缝分类, 成因分析, 裂缝处理

Abstract: Cracks were observed at the roller compacted concrete dam of Kubia Hydropower Project. The evaluation indicated that factors causing these cracks include differential temperature inside the dam and ambient environment, concrete contraction due to the hydration, selfdeformation and the external constraint. The paper discusses these factors and crack mitigation as well as prevention measures are proposed. The results indicate that these measures are satisfactory.

Key words: Roller Compacted Concrete Gravity Dam, Crack Classifications, Crack Causing Factors, Crack Treatment