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混凝土防渗墙是水工建设中采用的一种地下连续墙,是透水体处理的一种有效措施,它是利用专业的造槽机械设备营造槽孔,并在槽孔内注满泥浆,以防孔壁坍塌,最后用导管在注满泥浆的槽孔中浇筑混凝土并置换出泥浆,筑成墙体。墙体既可以做成刚性的,也可以做成塑性、柔性的。本文通过该技术在唐河县倪河水库除险加固工程中的应用,介绍了在大坝除险加固中混凝土防渗墙方案的合理选用及薄壁液压抓斗法混凝土防渗墙的施工技术要点及注意事项。
Concrete cutoff wall is a type of underground continuous wall used in hydraulic construction. It is an effective measure for permeable body treatment. It uses professional slotting machinery to create slots and fill the slots with mud Hole wall collapsed, and finally with the catheter in the mud filled slots pouring concrete and replace the mud, built into the wall. Wall can be made of rigid, can also be made of plastic, flexible. In this paper, through the application of this technology in Nihe Reservoir Reinforcement Project of Tanghe County, the reasonable selection of concrete cutoff wall plan and the construction technique of thin-wall hydraulic grab concrete cutoff wall are introduced And precautions.