Construction Method of Anti-sliding Pile Concrete Retaining Wall Without Bottom Form

Abstract

A construction method for a bottomless formwork of a concrete protecting wall of a slide-resistant pile includes following steps: firstly, welding and bundling reinforcing steel bars on the lower side of the poured protecting wall; secondly, erecting the formwork and reserving a feeding opening at the upper end of the formwork; thirdly, using river sand to fill and level up the bottom of a poured shipping space to replace a bottom formwork of the poured shipping space; and fourthly, pouring. Rapid construction of the bottomless formwork of the slide-resistant pile can be realized. The clean river sand is used to replace a wood formwork or a combined steel formwork to be used as the bottom formwork of the protecting wall, input of the formworks is reduced, construction efficiency of the protecting wall is increased, exposed time of an excavated surface of a pore wall is shortened, and the protecting wall is poured fast. A rapid pore-forming target can be realized, and the river sand can be recycled and is economical and practical.

Description

technical field [0001] The invention relates to the field of rapid construction of anti-slide piles in deep overburden layers, in particular to a construction method without a bottom form for anti-slide pile concrete retaining walls for solving the problem of hole collapse in deep overburden layers. Background technique [0002] In view of the large depth of the anti-slide pile covering layer, due to the influence of poor geological conditions such as fine sand and silt layers and water seepage during excavation, quicksand is easily formed. In severe cases, well leakage will occur, causing safety accidents and greatly affecting the progress of the project. Unfavorable, after research, fast retaining wall can solve this problem, and the speed of retaining wall depends on the installation speed of steel bars and bottom form. [0003] Because the anti-slide pile has double-layer vertical structural steel bars in the covering layer section, usually 136, and the rock-socketed sec...

AI Technical Summary

Problems solved by technology

The number of retaining piles is as many as 18-20 per day, and the height of each section of the retaining wall is 1.5m. The retaining wall of each pile well needs to be poured dozens of times (sections) in sequence. Since the positions of the openings on the formwork are relatively fixed, and the installation specifications for structural steel bars are allowed to exist deviation, so that it is particularly difficult to perforate each section of the retaining wall reinforcement each time, which greatly restricts the progress of the retaining wall, thus greatly affecting the construction progress

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