Construction method of ultra-deep anti-seepage wall
A construction method and anti-seepage wall technology, which is applied in sheet pile walls, sea area engineering, water conservancy projects, etc., can solve problems such as unsmooth construction, easy slipping of drilling, and concrete bonding layer, so as to avoid concrete segregation and prevent drilling tools from slipping , Guarantee the effect of construction quality
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[0062] Such as Figure 21 Shown is the flowchart of the ultra-deep cut-off wall construction method of the present invention, as can be seen from the figure, it comprises:
[0063] In the process of groove-forming ultra-deep cut-off wall, if the cut-off wall needs to be embedded in the bedrock of the high and steep slope of the river bed, the slot hole shall be formed by composite blasting;
[0064] After the slots are formed, concrete is poured into the slots by the method of dynamic hole cleaning to prevent the cementation and hardening of the mixed slurry flocs formed by the sedimentation of the upper layer of concrete and the mud in the slots, so that the continuous pouring of concrete forms a continuous wall in the vertical direction;
[0065] While pouring concrete into the slot hole, prevent the poured concrete from entering the inside of the joint pipe and causing the joint pipe to be cast dead through the valve assembly of the joint pipe at the end of the slot hole an...
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