穿越河流输水隧洞工程地表灌浆阻水施工技术——以引绰济辽输水工程隧洞段为例  

On Construction Technology of Surface Water-blocking Grouting in Tunnel Project Across River:A Case Study of Chao er-Xiliao Conveyance Project

作　　者：周茂生 ZHOU Maosheng(Tunnel Engineering Co.,Ltd.,China Railway 18th Bureau Group,Chongqing 400707,China)

机构地区：[1]中铁十八局集团隧道工程有限公司,重庆400707

出　　处：《浙江水利水电学院学报》2024年第4期55-60,共6页Journal of Zhejiang University of Water Resources and Electric Power

摘　　要：为探讨穿越河流隧洞工程地表灌浆阻水施工技术,以引绰济辽输水隧洞工程为背景,立足地表灌浆阻水施工的重难点,分析了地表灌浆阻水施工技术的应用要点及实践成效。实践得出,在穿越河流隧洞工程施工中如何有效阻水是施工成败的关键。地表灌浆阻水具有施工方便、阻水效果好等优势,在实际施工中需要切实把控好灌浆试验、钻孔质量、注浆方式等各地表阻水灌浆施工要点,地表注浆效果评定分析检查显示,芯样完整性较好,可见明显浆液结石填充痕迹。经验证,地表阻水灌浆技术在穿越河流隧洞施工中高效可行,能保障隧洞工程施工任务顺利完成,可为类似工程施工提供参考。In order to discuss the construction technology of surface water-blocking grouting in tunnel project across river,based on the key and difficult construction points chao er-Xiliao converyance project,the application points and practical results of the construction technology of surface water-blocking grouting are analyzed.It is concluded from practice that how to effectively block water is the key to the success or failure in the construction of river tunnel project.The surface grouting has the advantages of convenient construction and good water blocking effect,etc.In the actual construction,it is necessary to effectively control the grouting test,ensure the quality of the drilling hole,select the appropriate grouting method,and strengthen the treatment of special conditions.Through the evaluation and analysis of the surface grouting effect,the inspection hole shows that the core sample has good integrity,and obvious signs of filling of serous stones can be seen.It is proved that the technology of surface water-blocking grouting is efficient and feasible in the tunnel construction across the river,so as to ensure the smooth completion of the tunnel construction,which can provide reference for similar engineering construction.

关 键 词：隧洞工程 灌浆阻水 钻孔 灌浆 

分 类 号：TV543[水利工程—水利水电工程]