刘茂
摘 要:水利工程施工中混凝土施工技术是重要组成部分,施工质量直接影响着整体工程施工质量及安全性。混凝土裂缝是混凝土施工中的常见问题,不仅会影响水利工程建设水平,而且会使水利工程的应用时间大幅缩短,存在极大的安全隐患。针对目前常见的沉陷裂缝、温度裂缝、干缩裂缝、塑性收缩裂缝等混凝土裂缝的形成原因进行分析,探析现有的混凝土裂缝处理技术,总结施工过程中技术要点,进一步做好混凝土裂缝的防治工作,提升混凝土施工质量,进而保证水利施工的有序开展。
关键词:水利施工 混凝土裂缝 防治技术 养护管理
中图分类号:TV5 文献标识码:A文章编号:1672-3791(2021)04(a)-0071-03
The Prevention and Control Technology of Concrete Crack in Water Conservancy Construction
LIU Mao
(Irrigation and Drainage Development Center of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Uygur Autonomous Region, 830000 China)
Abstract: Concrete construction technology in water conservancy project construction is an important part of the construction quality directly affects the overall project construction quality and safety. Concrete crack is a common problem in concrete construction, which will not only affect the construction level of water conservancy projects, but also shorten the application time of water conservancy projects, and there are great safety risks. Aiming at the common settlement crack, temperature crack, dry crack, plastic shrinkage crack of concrete crack of crack formation were analyzed, and the analysis of the existing concrete crack processing technology, summarizes the main technical points in the construction process, and further to do a good job of prevention and control of concrete crack, improving the quality of concrete construction, and ensure the orderly in water conservancy construction.
Key Words: Water conservancy construction; Concrete crack; Prevention and control technology; Maintenance management
水利工程是我國的重要国民经济基础建设项目,随着人们生活水平提升,用水用电需求量增大,水利工程的作用与地位日益提升,可有效解决部分地区水资源短缺问题,提升水资源的利用率。水利工程施工中混凝土裂缝是普遍存在的共性问题,影响原因较多,严重影响水利工程的使用寿命与耐久性,因此,做好混凝土裂缝的防治工作具有重要意义。该文对水利施工中混凝土裂缝的防治技术与施工要点进行简要论述,以期更好地提升水利工程施工建设质量。
1 混凝土裂缝种类
1.1 沉陷裂缝
水利工程施工期间,若未按照规定将地基进行挖掘作用,会因为土质结构选择错误,导致后期操作中出现地基沉降,进而出现混凝土沉陷裂缝。施工中若选择松软土质开挖,会导致此区域的土质分布不均,不利于后续填土夯实作业的开展,会增加地面出现沉陷裂缝的风险[1]。……