Building foundation treatment pile construction process

A technology of foundation treatment and construction technology, which is applied in the direction of construction, foundation structure engineering, sheet pile walls, etc., can solve the problems of difficult construction, long pile construction time, large amount of concrete, etc., achieve a wide range of applications, increase construction speed, The effect of high bearing capacity of single pile

Inactive Publication Date: 2018-12-21
徽都建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many patented techniques for reinforcing the pile end with filler to form an enlarged pile head, especially the patented construction method of concrete piles, all of which need to be filled in to ensure the compactness of the filler such as the three-strike penetration and the compactness of the underlying soil. A large amount of filler including construction waste, in order to prevent the pile from penetrating damage due to excessive settlement, it is also necessary to fill in a large amount of dry hard concrete, so the pile construction time is long, the construction is difficult, and the work efficiency is low
Moreover, it is not suitable to fill too much filler in this soil layer, otherwise the ground will rise and the adjacent piles will float up. The underlying soil is not well compacted, so the amount of concrete is very large. If the length of the prefabricated pile is increased to increase the bearing capacity of the single pile, the friction of the ground will generate greater resistance, making it difficult to sink the pile and consume a lot of energy. Sometimes there will be burst piles, and the shear strength of prefabricated pipe columns is not as good as that of solid piles

Method used

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Embodiment Construction

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] A construction technique for building foundation treatment into piles, comprising the steps of:

[0020] Step 1. Pre-construction preparation: Use advanced drilling to confirm that there is plastic filling in the karst cave that the project pile preset space passes through;

[0021] Step 2. Calculate the height of the grouting pipe: calculate the height of the required grouting pipe and the reinforcement of the jet grouting pile according to the position and height information of the karst cave obtained by the advanced drilli...

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Abstract

The invention discloses a building foundation treatment pile construction process. The building foundation treatment pile construction process is characterized by comprising the advantages of flexiblecombination between precast piles and cast-in-place piles, wide application range, high bearing capacity of single piles and reduction of the scene concrete casting quantity by the precast piles at the lower part; and the diameters of the precast piles are smaller than the diameters of the cast-in-place piles, so that the stress mechanisms of the piles are met, the concrete consumption is saved,the construction speed is greatly accelerated, the production cost is reduced, and the problem of incapability of driving long cast-in-place piles due to the height limiting of a pile receiver is solved through use of the precast piles at the lower parts.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction technique for treating building foundations into piles. Background technique [0002] my country's high-rise building foundation construction and foundation treatment technology is close to the international advanced level. Pile foundation is currently the most widely used foundation form. Due to vibration, noise pollution, soil squeezing effect and other defects, the use of concrete prefabricated piles is relatively reduced. The fastest growing and most widely applicable is the cast-in-place pile, because it can be applied to any stratum soil quality, and can form any pile diameter and pile length to meet different bearing capacity requirements. [0003] In recent years, cast-in-situ piles have been widely used in our country, and a lot of experience in design and construction has been accumulated, and the construction technology of cast-in-situ pile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/50E02D15/00
CPCE02D5/50E02D15/00
Inventor 江玲叶兴国吕俊杰吕宗霞
Owner 徽都建设有限公司
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