Integrative construction device and method for pile cap and pile body of pouring pile

Abstract

The invention relates to an integrative construction device for a pile cap and a pile body of a pouring pile. The integrative construction device comprises a level gauge, a total station and a base plate with an annular cross section. The annular base plate is laid around an upper end opening of a pile hole and connected to an overall reinforcement cage in a sleeving manner. The overall reinforcement cage is arranged in the pile hole. The pile hole and the overall reinforcement cage coaxially coincide. The overall reinforcement cage is divided into a ground pile cap steel bar part and a pile foundation underground steel bar part. The overall reinforcement cage comprises a set of longitudinally-arranged main bars and a spiral stirrup surrounding the main bars. A set of groove holes is formed in the annular base plate, and bolts matched with the groove holes are arranged. The bolts are connected with bolt holes in a formwork in a matched manner. The formwork coincides with the base plate and the center of the overall reinforcement cage. The integrative construction device is low in construction difficulty and has high economic benefits and social environment benefits.

Description

technical field [0001] The invention relates to an improvement of a construction process for a pile cap of a liquefied natural gas storage tank, in particular to an integrated construction device and method for a cast-in-place pile cap and a pile, belonging to the technical field of building construction. Background technique [0002] The outer tank of a large cryogenic storage tank is designed as a post-tensioned prestressed reinforced concrete structure, which is generally supported overhead by bored cast-in-place piles. In the process of pile foundation construction, due to the uncertainty of underground conditions, the progress of pile foundation construction will often be delayed. Reasonable arrangements for the smooth construction of pile caps and storage tank caps are the key to ensuring the project schedule. In previous liquefied natural gas (LNG) projects, such as LNG projects in Zhuhai, Ningbo and other places, the pile and pile cap were all used for separate const...

AI Technical Summary

Problems solved by technology

In previous liquefied natural gas (LNG) projects, such as LNG projects in Zhuhai, Ningbo and other places, the pile and pile cap were all used for separate construction technology, that is, earth excavation, pile head breaking and pile cap reinforcement were carried out after the pile construction was completed. , then pouring concrete for the pile cap, and finally backfilling the earth to complete the construction of the pile cap. This technical process is cumbersome, and the investment in manpower, materials and mechanical equipment is large, resulting in high construction costs, slow project progress, and increased dust and noise. Wait for pollution

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