Construction Method of Reinforced Concrete Cast-in-place Pile Without Excavation of Soil Between Pile

Abstract

The invention discloses a reinforced concrete cast-in-place pile construction method free of excavation of earth among piles. The reinforced concrete cast-in-place pile construction method includes the steps that firstly, foundation pit excavation and support construction are conducted, wherein a construction foundation pit is excavated from top to bottom, and the excavated and formed foundation pit is supported; secondly, construction of a concrete cushion layer at the bottom of the foundation pit is conducted; thirdly, pile position measurement and pay-off are conducted, wherein measurement and pay-off are conducted on pile positions of all reinforced concrete cast-in-place piles needing to be constructed in the foundation pit; and fourthly, reinforced concrete cast-in-place pile construction is conducted, wherein when construction of any reinforced concrete cast-in-place pile is conducted, the process includes the following steps of breaking of the concrete cushion layer at the pile positions, hole drilling, reinforcement cage hoisting and placing, pile head forming mold installation, concrete cast-in-place construction and pile head forming mold detachment. The method is simple in step, reasonable in design, easy and convenient to construct and good in use effect; and by adjusting the construction procedures of pile foundations, the earth-among-pile excavation process in the traditional reinforced concrete cast-in-place pile foundation construction process is omitted, the construction period can be effectively shortened, and the construction cost is saved.

Description

technical field [0001] The invention belongs to the technical field of pile foundation construction, and in particular relates to a construction method for reinforced concrete cast-in-situ piles without excavation of soil between piles. Background technique [0002] Reinforced concrete cast-in-situ pile is a kind of pile formed by directly forming a hole on the site pile position, and then pouring concrete in the hole or placing a steel cage and then pouring concrete. At present, the construction of reinforced concrete piles has become an indispensable construction project for most high-rise building projects. The traditional construction method of the reinforced concrete cast-in-place pile foundation is generally to excavate the foundation pit to the pile top 600mm, first carry out the pile foundation positioning, hole formation and concrete pouring construction, and then carry out the second excavation of the soil between the piles and the pile breaking. Head concrete and...

AI Technical Summary

Problems solved by technology

Due to the need to use mechanical equipment to excavate the soil between the piles during the construction of the traditional reinforced concrete pile foundation, the construction is difficult and time-consuming. It takes a lot of labor to reach the site

Therefore, the traditional reinforced concrete cast-in-situ pile construction method still has problems such as many procedures, long construction period, large construction environmental pollution, and difficult quality control of pile foundation construction.

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