河南水利与南水北调2024，Vol.53Issue(2)：87-88,2.
降低喷射混凝土回弹量措施分析
Analysis of Measures to Reduce Rebound Capacity of Sprayed Concrete
李欣蕾1
作者信息
- 1. 新疆水利水电勘测设计研究院有限责任公司,新疆 乌鲁木齐 830063
- 折叠
摘要
Abstract
In order to improve the efficiency and speed of shotcrete construction in Ahu Reservoir,and reduce resource waste of resources,the reasons for the high rebound rate of sprayed concrete during construction process are analyzed.The results show the main causes of this phenomenon are the inexperienced operators,the inappropriate methods,the insufficient mechanical accuracy and the non-conforming mix ratio.After comprehensively consideration,the following methods are adopted in strict accordance with the operating procedures.Firstly,a concentric diameter reducing diffusion tube with a hole is installed at the original nozzle.Secondly,the mix ratio of sprayed concrete is strictly controlled.Thirdly,the concrete rebound rate significantly decreases after removing the large deviation values and averaging the remaining values.The results can provide reference for concrete construction.关键词
喷射混凝土/回弹率/施工Key words
sprayed concrete/rebound rate/construction分类
建筑与水利引用本文复制引用
李欣蕾..降低喷射混凝土回弹量措施分析[J].河南水利与南水北调,2024,53(2):87-88,2.
