前坪水库输水洞喷射混凝土回弹量控制措施  

Control measures of shotcrete resilience in Qianping Reservoir water transport tunnel

作　　者：胡玲玲 宋歌 张添 陈礼强 于修胜 Hu Lingling;Song Ge;Zhang Tian;Chen Liqiang;Yu Xiusheng

机构地区：[1]河南省水利第二工程局,郑州450016

出　　处：《中国水利》2020年第18期46-48,共3页China Water Resources

摘　　要：对喷射混凝土回弹量产生的末端因素及前坪水库输水洞洞身段中回弹量技术控制措施进行了充分现场调查和分析。结合施工过程中各个环节施工方法和工程特点,从“人、机、料、法、环”等多方面因素进行综合分析和论证,在作业人员质量意识管理、结构设计、爆破开挖质量、材料选择、喷射厚度和压力、温度适应性等方面遵循科学标准和方法,能在很大程度上避免回弹量的产生。The end factors of the springback of shotcrete and the technical control measures of the springback of Qianping Reservoir water hole were investigated and analyzed.Combined with the construction process in each link of the construction method and engineering characteristics,through comprehensive analysis and argument from factors such as“man,machine,material,method,environment”,following the scientific standard and methods in constructors’quality consciousness management,material selection,structural design,blasting excavation quality,material selection,the thickness and pressure of jet and temperature adaptability can avoid the generation of the springback amount to a great extent.

关 键 词：喷射混凝土 回弹量 防控措施 质量管理 前坪水库 

分 类 号：TV672[水利工程—水利水电工程]