控制性灌浆帷幕在桥墩围堰防渗处理中的应用研究  

Application Research of Controlled Grouting Curtain Technology for Seepage Prevention Treatment of Pier Cofferdam

作　　者：周建华[1,2] 张金接 赵卫全[1,2] 王丽娟 ZHOU Jianhua;ZHANG Jinjie;ZHAO Weiquan;WANG Lijuan(China Institute of Water Resources and Hydropower Researeh,Beijing 100044,China;Beijing IWHR Corporation,Beijing 100044,China)

机构地区：[1]中国水利水电科学研究院,北京100044 [2]北京中水科工程总公司,北京100044

出　　处：《水利与建筑工程学报》2018年第4期11-15,共5页Journal of Water Resources and Architectural Engineering

基　　金：中国水科院重点科研专项"高内水;高外水或高内外水交互作用下的输水隧洞关键技术研究"(监基本科研KY1842)

摘　　要：针对怀绍衡铁路沅江特大桥桥墩围堰防渗处理中的特点及难点,采用"速凝膏浆+稳定性浆液"的控制性灌浆技术进行防渗处理。建立二维计算模型,对汛期帷幕体的渗流稳定性进行分析;对速凝膏浆和稳定性浆液灌浆材料特点、控制性灌浆施工工艺及灌浆控制参数及进行介绍;并结合现场施工及检测情况,对处理效果进行了分析评价。控制性灌浆技术对于桥墩围堰防渗处理是有效的,可节约大量堵漏成本和施工工期,可为类似防渗处理工程提供一定的参考。In view of the characteristics and difficulties of the seepage treatment of the pier cofferdam of the Yuanjiang super large bridge in Huai Shao Heng railway,the control grouting technology of＂speed coagulating paste＋stability slurry＂is used to prevent seepage.The two-dimensional calculation model is developed to analyze the seepage stability of the curtain body in flood season.The characteristics of grouting material,the grouting technology and parameters are introduced.The treatment effect is analyzed and evaluated combined with on-site construction and testing.The control grouting technology is effective for the seepage treatment of the pier cofferdam,and can save a lot of leakage and construction time.

关 键 词：速凝膏浆 稳定性浆液 控制性灌浆帷幕 灌浆工艺 

分 类 号：TV551.3[水利工程—水利水电工程]