A pile head node waterproof treatment device and its construction method

Abstract

The invention relates to a pile head joint waterproof processing device and a construction method thereof. The device comprises a pile head. Steel ribs are arranged at the top of the pile head and in the pile head. The steel ribs at the top of the pile head are oblique upwards, and the top ends of the steel ribs are horizontal outwards. The lower portion of the pile head is buried in a base soil layer. A loudspeaker-shaped opening with the pile head as the center is formed in the base soil layer around the pile head. The base soil layer on the periphery of the opening is distributed horizontally. Concrete cast layers are arranged on the oblique face of the loudspeaker-shaped opening and on the horizontal base soil layer on the periphery of the opening. The thicknesses of the concrete cast layers on the oblique faces of the loudspeaker-shaped opening are the same. Cement mortar layers are continuously arranged on the top of the pile head, the side face of the pile head and the upper surface of the concrete cast layer. Flexible waterproof material layers are arranged on the cement mortar layers around the pile head. The pile head joint waterproof processing device and the construction method thereof have the advantages that by improving the prior art, the quality of a pile head joint is improved, earthwork excavated volume is lowered, human cost is saved, materials are saved, production of building waste is lowered, and great economical benefit is brought.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a pile head node waterproof treatment device and a construction method thereof. Background technique [0002] The existing pile head node waterproof treatment adopts the pile head method 2 in the BJ series atlas "08BJ6-1 Waterproofing of Underground Engineering" compiled by the North China Architectural Design Standardization Office. Through an in-depth analysis of the waterproof joints of the pile head, it was found during the construction process that according to the Atlas method, not only the single pile construction period is long, but the labor force and machinery input are too large to meet the progress requirements. More importantly, the waterproof construction of the joints is cumbersome. Not only the consumption of waterproof materials is relatively large, but more importantly, the rigid connection between the pile body and the waterproof nodes is not cond...

AI Technical Summary

Problems solved by technology

[0003] 1) Since the polymer cement waterproof mortar is a rigid material, there is a hidden danger of cracking after the pile body is loaded by the upper bearing capacity, resulting in the failure of the waterproof effect

[0004] 2) The lower opening is sealed with a 20×30mm putty-type water-swellable water-stop strip and 20 thick 1:2 polymer waterproof mortar, and the polymer waterproof mortar is constructed twice, which has hidden dangers in the quality of the stubble, and the construction is difficult and the construction period is long long

[0005] 3) When installing the 10×10mm putty type water-swellable water-stop strip, due to the short material, the joints of the water-stop strip are likely to be closed and not dense, and there are quality risks

[0006] 4) Excavation of trapezoidal earthwork requires a large amount of labor, and a large amount of earthwork needs to be excavated

[0007] 5) The trapezoidal base layer is adopted, not only the waterproof material needs to be added as an additional layer, but also the external corners of the waterproof material are easily torn and damaged by external force, and there are quality risks

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