Wall-mounted wing wall combined with cast-in-place pile foundation pit supporting and construction method thereof

Abstract

The invention discloses a wall-mounted wing wall combined with cast-in-place pile foundation pit supporting and a construction method thereof. The wall-mounted wing wall comprises cast-in-place piles, a pile top platform and wall plates; the wall plates are located in front of the exposed faces of the cast-in-place piles, and the rear walls of the wall plates are connected with the exposed faces of the cast-in-place piles in a pouring manner to serve as main soil retaining and supporting structures of the wing wall; and the pile top platform is fixed to the tops of the cast-in-place piles, and the pile top platform and the lower wall plates are combined to serve as a wing wall upper supporting structure. The construction method of the wall-mounted wing wall comprises the steps that firstly, basic plane scabbling and cleaning are conducted on original cast-in-place piles and pile top beams, then net hanging reinforcing steel bar drilling is conducted, then rear reinforcing steel bars are buried, a double-layer reinforcing steel bar net is arranged, a formwork is erected, and finally layered concrete pouring is conducted, so that the cast-in-place piles, the pile top platform and the wall plates form the integrated wall-mounted wing wall, and formwork removal and forming are conducted. The wall-mounted wing wall can adapt to the limitation of various complex terrains and site conditions, the integrity of a supporting structure and a soil retaining structure is improved, the construction period is shortened, and the construction cost is reduced.

Description

technical field [0001] The invention relates to a retaining wing wall and a construction method thereof, in particular to a wall-mounted wing wall combined with bored pile foundation pit support and a construction method thereof. Background technique [0002] At present, in the construction of water conservancy, municipal and other infrastructure projects, most foundation pit support structures are in the form of bored piles, and for foundation pit projects constructed in cities, due to the surrounding terrain and site conditions A large number of pipelines and houses and other buildings (structures) are distributed on the back side of the support structure. Based on this, the traditional construction method of the retaining wing wall constructed under the above-mentioned engineering environment needs to separately consider the supporting cast-in-place piles (such as Figure 5 The crown beam + cast-in-place pile structure shown in the previous construction), the retaining wi...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a wall-mounted wing wall combined with bored pile foundation pit support and its construction method, which is used to solve the problem of foundation pit support when the surrounding terrain and site conditions are limited. The problem of long construction period and high cost of protection engineering

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