Concrete grouting construction device and method at the bottom of a steel pipe pile

Abstract

The invention discloses a construction device and method for pouring concrete to a pile base of a steel pipe pile, and relates to the field of bridge pile base construction. The method comprises the following steps: S1, putting a standard plumb bob onto a concrete surface in a guide tube, measuring a distance from the concrete surface in the guide tube to a top hole of the guide tube, and calculating elevation of the concrete in the guide tube; S2, injecting water into the guide tube through a water pump until the standard plumb bob measures that the elevation of the concrete surface inside the guide tube is higher than designed elevation of the concrete surface of the pile base, and stopping injecting water; S3, dismounting the water pump and the standard plumb bob; and S4, pulling out the guide tube embedded into the concrete. A device and method for pulling out the guide tube for pouring concrete to the pile base of the steel pipe pile can effectively solve the problem that coarse aggregates, fine aggregates and the like have a segregation phenomenon as concrete, higher than the concrete surface outside the tube, in the guide tube is soaked into water in a pouring construction and tube-pulling process of underwater concrete of the pile base.

Description

technical field [0001] The invention relates to the field of bridge pile foundation construction, in particular to a construction device and method for pouring concrete at the bottom of steel pipe piles. Background technique [0002] Concrete in steel pipe piles is generally constructed by conduit pouring. The conventional conduit pouring construction method is as follows: firstly, construction preparations (including but not limited to: conduit watertightness test, concrete mix test, preparation of concrete production and transportation equipment), installation of conduits, Install the pouring funnel, start producing, transporting concrete, and pouring underwater concrete. Finally, pull out all the conduits (including the stub conduits), remove the relevant mechanical equipment, and end the underwater concrete pouring construction of the pile foundation. [0003] The conventional catheter perfusion construction method has the following problems: [0004] When the concrete...

AI Technical Summary

Problems solved by technology

Because the outflowing concrete is relatively fine and in full contact with water, segregation of coarse aggregate and fine aggregate will occur, and the original properties of concrete will be lost. On the one hand, it will cause waste, and on the other hand, it will increase the error of the concrete pouring level in the pipe. It affects the level difference of the top surface of the concrete in the pile; at the same time, the outflow of concrete in the conduit also increases the cost and construction period of removing concrete segregated materials

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