Construction method for drawing-resistant thorn-shaped pile

Abstract

The invention relates to a construction method for a building pile, in particular to a construction method for a drawing-resistant thorn-shaped pile. The method includes the following procedures that A. pile prefabricating including that a hollow reinforced concrete pile body with a plurality of thorn-shaped pile holes distributed in the peripheral wall is prefabricated according to a design requirement, and a direct grouting hole is formed in the reinforced concrete pile body wall on the upper portion of each thorn-shaped pile oppositely; B. pile placing including that a hole is formed in a foundation soil body, and the reinforced concrete pile body is lowered into the hole to the preset position, or pile sinking is conducted while the hole is dug till the pile reaches the preset position; C. bottom sealing including that after the reinforced concrete pile body is lowered into the preset position, concrete is poured into the hollow space in the reinforced concrete pile body, and bottom sealing at the bottom end in the reinforced concrete pile body is achieved; D. pile pressing including that a grouting pile with grouting holes in the axial direction is pressed into the soil body in a pressing mode through the thorn-shaped holes in the reinforced concrete pile body from the inside to the outside; E. grouting; F. pile body reinforcement; G. later-period installation.

Description

technical field [0001] The invention relates to a construction method of a construction pile, in particular to a construction method of a pullout-resistant thorn pile. Background technique [0002] The general pile body is cylindrical, and it is easy to loosen or slide longitudinally in the soft soil, resulting in insufficient pulling force, insufficient lateral shear resistance, and insufficient lateral dynamic load resistance. In order to improve the positioning effect, increase the friction force, and enhance the positioning, the usual method can only increase the length of the pile body and insert it into the foundation soil as deep as possible, which increases the difficulty and cost of construction, and greatly increases Pile weight. Contents of the invention [0003] In order to make up for the defects existing in the existing pile body, the present invention provides a construction method of the pullout-resistant thorn pile, which can effectively improve the p...

AI Technical Summary

Problems solved by technology

[0002] Generally, the pile body is cylindrical, and it is easy to loosen or slide longitudinally in the soft soil, resulting in insufficient pulling force, insufficient lateral shear resistance, and insufficient lateral dynamic load resistance.

In order to improve the positioning effect, increase the friction, and enhance the positioning, the usual method can only increase the length of the pile body and insert it into the foundation soil as deep as possible, which increases the difficulty and cost of construction, and greatly increases Pile weight

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