Method for improving bearing capacity of single pile of constructed foundation pile

A technology of bearing capacity and ultimate bearing capacity, applied in the direction of sheet pile walls, foundation structure engineering, construction, etc., can solve the problems that the bearing capacity of a single pile cannot be effectively improved, affect the progress of the project, and unsafe hidden dangers, etc., and achieve reduction Difficult design, improved construction efficiency, and reduced operating costs

Inactive Publication Date: 2014-07-30
王利华 +2
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Problems solved by technology

[0003] The present invention aims to solve the existing method to improve the bearing capacity of a single pile to meet the design requirements, a large amount of money is wasted, the bearing capacity of the single pile cannot be effectively improved, and many difficulties are added to the later engineering design, which affects the progress of the entire project. What's more, it brings unsafe hidden dangers and causes major accidents, and then provides a method to improve the bearing capacity of single piles of foundation piles that have been constructed.

Method used

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  • Method for improving bearing capacity of single pile of constructed foundation pile
  • Method for improving bearing capacity of single pile of constructed foundation pile

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specific Embodiment approach 1

[0017] Specific implementation mode one: combine Figure 1-Figure 2 Illustrate, the specific steps of a kind of method of improving the foundation pile single pile bearing capacity of the present embodiment are:

[0018] Step 1. Pretreatment of the pile top of the foundation pile. The top surface of the pile is cleaned and leveled and leveled with mortar, and the wooden square and sacks are cushioned before applying pressure;

[0019] Step 2. Static pressure application or dynamic application of the foundation pile. The specific process of using the static pressure application method is as follows:

[0020] (1) Select the tonnage of the static pile driver according to the design bearing capacity of 1.1 times the single pile of the foundation pile; the unit is kilonewton;

[0021] (2) Slowly and uniformly apply graded loads, and measure the settlement S of the foundation pile for two minutes when the vertical ultimate bearing capacity Q of the single pile required by the desig...

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Abstract

The invention relates to a method for improving the bearing capacity of the single pile of a constructed foundation pile, relates to a method for improving the bearing capacity of the single pile, and aims to solve the problems that a lot of money is wasted, the bearing capacity of the single pile still can't be effectively improved, and much difficulty is increased in the later engineering design, which influences the whole engineering process, even brings potential safety hazard and causes major accidents when design requirements are met and the bearing capacity of the single pile is improved by adopting the conventional method. The method comprises the following main steps: step one, the pretreatment of the pile top of the foundation pile; step two, the static pressure or the dynamic striking of the foundation pile. According to the invention, the method is used for improving the bearing capacity of the single pile of the foundation pile in constructed foundation soil.

Description

technical field [0001] The invention relates to a method for improving the bearing capacity of a single pile, in particular to a method for improving the bearing capacity of a constructed foundation pile (cast-in-place pile or prefabricated pile). Background technique [0002] For foundation piles constructed in normal procedures, the bearing capacity of single piles often fails to meet the design requirements due to various reasons. Usually, measures such as filling piles, grouting and enlarging caps are used to remedy the deficiencies. This remedial measure consumes a lot of financial and material resources. At the same time, it also adds a lot of difficulties to the design, affects the construction progress, and even brings unsafe hidden dangers, resulting in major accidents. Contents of the invention [0003] The present invention aims to solve the existing method to improve the bearing capacity of a single pile to meet the design requirements, a large amount of money...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D7/20E02D7/08
Inventor 王利华黄琦峰王戈
Owner 王利华
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