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Treatment method and foundation structure of deep foundation

A treatment method and foundation technology, which can be applied in foundation structure engineering, earthwork drilling, directional drilling, etc., can solve problems such as poor overall stability of support piles and damage to superstructures, so as to avoid soil subsidence, avoid damage, and strengthen the overall The effect of stability

Active Publication Date: 2020-02-14
华洲建设温州有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned patent finally forms a plurality of mutually independent support piles distributed in a point-like manner in the foundation. Since the multiple support piles are not connected, the overall stability of the support piles is poor. When the foundation is subjected to lateral and longitudinal vibrations , easily lead to damage to the superstructure

Method used

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  • Treatment method and foundation structure of deep foundation
  • Treatment method and foundation structure of deep foundation
  • Treatment method and foundation structure of deep foundation

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Experimental program
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Effect test

Embodiment 1

[0058] Embodiment one: a kind of treatment method of deep foundation, comprises the following steps:

[0059] refer to figure 1 , step 1, the steel pipe 1 and the pile point 2 against the lower end surface of the steel pipe 1 are sunk into the ground together, the pile point 2 is set on the lower end of the steel pipe 1 and can be separated from the steel pipe 1, so that the lower end surface of the steel pipe 1 reaches the design elevation , the pile point 2 forms a seal on the lower end of the steel pipe 1;

[0060] Step 2, put the guide block 3 into the lower end of the steel pipe 1, the bottom of the guide block 3 can be made of beryllium bronze material, the inside of the pile tip 2 is provided with a card slot matching the bottom of the guide block 3, and the end of the guide block 3 facing the pile tip 2 Engaged with the pile tip 2, the guide block 3 is tapered as a whole, the guide block 3 is coaxial with the steel pipe 1 and its tip faces the entrance of the steel pi...

Embodiment 2

[0076] Embodiment two: if Figure 10 As shown, a deep foundation treatment method differs from the first embodiment in that the number of connecting piles 5 around the supporting piles 6 is six, and the projections of the supporting piles 6 on the ground are arranged in an equilateral triangle.

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Abstract

The invention discloses a deep foundation treatment method and a foundation structure, relates to the technical field of foundation treatment, and solves the problem of poor overall stability of support piles in the prior art. In the present invention, the bottom ends of the adjacent support piles are connected as a whole through connecting piles to form a three-dimensional network structure, which enhances the overall stability of the support piles. When the foundation is subjected to lateral or longitudinal vibrations, the support piles will not Deformation or even dislocation occurs to avoid damage to the superstructure; by setting multiple through holes for auxiliary grouting on the periphery of the grouting pipe, the outlet of the grouting pipe and the through hole are grouted at the same time, and the first drill pipe can be drilled. When exiting the inclined hole, quickly fill the inside of the inclined hole with cement slurry to avoid collapse; by making the expansion head, even if one of the connecting piles is slightly offset, it can ensure that the two connecting piles are connected as a whole through the expanding head to avoid connection The piles are dislocated and not connected as a whole, which improves the overall stability of the supporting piles.

Description

technical field [0001] The invention relates to the technical field of foundation treatment, more specifically, it relates to a deep foundation treatment method and a foundation structure. Background technique [0002] In order to improve the bearing capacity of the foundation soil and reduce the foundation settlement or soil permeability of the building, the foundation soil needs to be treated. Common methods for foundation deep treatment include cement-soil mixing pile method, grouting method, and rotary jetting pile method. The three soil reinforcement methods are all operated point by point on the ground of the reinforced soil in a vertical manner. [0003] Publication No. CN105714773A discloses a ground treatment method in the Chinese invention patent, which specifically includes the following steps: (1) sinking pipe: sinking the steel pipe and the pile point abutting against the lower end surface of the steel pipe together by using a vibrating pile pulling machine int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D7/28E02D5/62E02D5/38E21B7/04E21B17/00
CPCE02D5/385E02D5/62E02D7/28E21B7/04E21B17/00E02D5/72
Inventor 陈彪
Owner 华洲建设温州有限公司
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