北方寒冷地区大型水工隧洞钢筋混凝土裂缝处理探讨  

Discussion on Crack Treatment of Reinforced Concrete in Large Hydraulic Tunnelin Cold Area of North China

作　　者：陈雷 Chen Lei(Liaoning Provincial Water Conservancy Civil Engineering Consultation Limited Company,Shenyan 110000,China)

机构地区：[1]辽宁水利土木工程咨询有限公司,沈阳110000

出　　处：《黑龙江水利科技》2023年第11期55-58,共4页Heilongjiang Hydraulic Science and Technology

摘　　要：文章使用物探无损检测、压水试验以及钻孔取芯等方法,对松花江干流丰满水电站的水工隧洞混凝土裂缝冬季低温灌浆质量进行检查。结果表明:采用环氧树脂钻孔灌浆法能够有效处理D类贯穿性裂缝和C类深层裂缝,裂缝处理质量较高;裂缝处理时应选择合适的环境温度,低温季节施工时不宜超过5~20℃;为保证裂缝处理的可控性,必须做好各工序及全过程控制工作。In this paper,the low temperature grouting quality of concrete cracks in hydraulic tunnel of Fengman Hydropower Station in Songhua River is checked by means of geophysical nondestructive testing,water pressure test and drilling core.The results show that class D penetrating cracks and class C deep cracks can be effectively treated by using epoxy resin drilling and grouting method,and the quality of crack treatment is high.Crack treatment should choose the appropriate environmental temperature,low temperature season construction should not exceed 5~20℃.In order to ensure the controllability of crack treatment,it is necessary to do a good job in each process and the whole process control.

关 键 词：丰满水电站 水工隧洞 裂缝处理 钻孔灌浆 环氧树脂 

分 类 号：TV554[水利工程—水利水电工程]