Foundation pit breast board supporting and sealing structure and construction method thereof
A technology of retaining boards and steel plate waterstops, which is applied in the direction of infrastructure engineering, excavation, construction, etc., can solve problems such as high construction technology requirements, large environmental pollution damage, and complex construction conditions, so as to shorten support time and reduce Effect of reducing construction cost and shortening construction time
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[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0039] The present invention is a foundation pit retaining board support, water-stop structure, such as figure 1 As shown, it includes bored cast-in-situ piles, earth retaining plate anchoring and positioning devices and earth retaining plates. The bored cast-in-place piles include pile holes 12 and reinforcement cages 13, and the earth retaining plate anchoring and positioning devices are vertically spaced and fixed on the steel bars On the cage body 13;
[0040] Such as figure 2 As shown, the retaining plate anchoring and positioning device includes a fan-shaped bracket and a U-shaped groove 4, and the fan-shaped bracket includes a bracket strut 1 and a large arc-shaped strut 2, and one side of the bracket strut 1 is fixedly connected. There is a small arc-shaped strut 3, which is arranged opposite to the large arc-shaped strut 2...
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