Method for connecting concrete pile and bearing platform

Abstract

The invention provides a method for connecting a concrete pile and a bearing platform. The method comprises the following steps of: firstly, measuring the actual pile top elevation of the concrete pile after pile foundation construction is finished; mounting a plurality of connecting steel bushings on tension screw holes of an end plate of the concrete pile when the practical pile top elevation of the concrete pile equals to or is lower than a designed elevation; then, mounting threaded steel bars connected with a basic bearing platform on the connecting steel bushings to realize the connection of the end plate and the threaded steel bars; and casting common concrete on the basic bearing platform connected with the concrete pile so as to realize the connection of the concrete pile and thebasic bearing platform; and when the practical pile top elevation of the concrete pile is higher than the designed elevation, truncating the pile, keeping original steel bars and end plate of the pile body after truncation, mounting the end plate of the concrete pile on the heading ends of the steel bars and fixing the end plate in situ with reinforcing ribs to realize the reconnection of the endplate and the steel bars, and casting the common concrete to the basic bearing platform connected the concrete pile so as to realize the connection of the concrete pile and the basic bearing platform.

Description

technical field [0001] The invention relates to a construction technology of building pile foundation engineering, in particular to a method for connecting concrete piles and caps. Background technique [0002] With the increasing importance of modern buildings and the continuous increase of building height, higher requirements are put forward for the bearing capacity of the foundation. In the past, the concrete pile foundation of building construction mainly bears vertical compressive load, but many pile foundations have to bear both vertical compressive load and vertical tensile load at the same time. In recent years, some projects have applied concrete piles to anti-floating projects and used them as uplift piles under the pressure of investors to reduce project cost. The existing technical regulations or atlases only clearly stipulate the connection between the pile and the cap when the concrete pile is used as a pressure-resistant pile or a pressure-bearing pile, but ...

AI Technical Summary

Problems solved by technology

However, this method has many problems, such as: only relying on the core-filled concrete to bear the pull-out force, and sometimes the construction site environment is relatively complicated or even harsh, which will cause serious water accumulation in the inner cavity of the pile, and the mud on the inner wall cannot be cleaned. Trouble makes the construction quality of core-filled concrete difficult to control, and often occurs that the core-filled concrete is pulled out, affecting the quality of pullout resistance and causing engineering problems, etc.

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