Construction Technology of Long Spiral Cast-in-situ Pile with Vibration and Tube Follower

A technology of long spiral cast-in-place pile and construction technology, which is applied in sheet pile wall, foundation structure engineering, construction, etc., can solve the problems of limited joint diameter of pile foundation, insufficient bearing capacity of single pile, and inability to meet the requirements of bearing strength, etc. Achieve the effect of avoiding shrinking and collapsing holes, improving construction quality and increasing bearing strength

Active Publication Date: 2021-11-02
湖北中南岩土工程有限公司
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  • Abstract
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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the construction method of cast-in-place piles in this invention has a limited degree of combination between the pile foundation and the pile hole and the diameter of the pile foundation, and the bearing capacity provided by the single pile is insufficient, which cannot meet the needs of buildings with high bearing strength

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  • Construction Technology of Long Spiral Cast-in-situ Pile with Vibration and Tube Follower
  • Construction Technology of Long Spiral Cast-in-situ Pile with Vibration and Tube Follower
  • Construction Technology of Long Spiral Cast-in-situ Pile with Vibration and Tube Follower

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Embodiment Construction

[0039] The following is attached Figure 1-3 The application is described in further detail.

[0040] The embodiment of the present application discloses the construction process of long spiral cast-in-situ piles with vibrating follow-up pipes, including the following construction steps:

[0041] Step 1. Preparation before construction

[0042] Comprehensively evaluate the construction site, select the appropriate filling pile position according to the foundation and soil layer conditions, measure the pile position and mark it with steel bars, measure the ground elevation in the site to determine the buried depth of the pile top, and use the level to control the plane error of the pipe pile and the verticality of the pile body degree of deviation;

[0043] refer to figure 1 and figure 2 , select the crawler-type long helical multifunctional bored pile driver 2, crane 3, vibratory hammer 4, excavator and shovel as construction machines, wherein the long helical multifuncti...

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Abstract

This application relates to the technical field of foundation engineering, and discloses the construction process of long spiral cast-in-situ piles with vibration and pipe, including the following construction steps: step 1, preparation before construction; step 2, drilling into holes; step 3, concrete pouring; step 4, Hammering of the steel casing; step five, placing the reinforcement cage; step six, secondary pouring of concrete and removal of the steel casing. This application uses the pipe pile of the pile driver to pour concrete mortar in the borehole, which can ensure the borehole diameter and avoid the collapse of the hole, and then use the vibrating hammer to hammer the casing into the original pile position filled with concrete mortar. The uncondensed concrete at the original pile position is squeezed around to expand the pile diameter, increase the diameter of the pile foundation and the degree of integration with the ground, thereby improving the bearing strength and stability of the pile foundation.

Description

technical field [0001] The present application relates to the field of foundation engineering technology, in particular to the construction technology of long spiral cast-in-place piles with vibration and follow pipes. Background technique [0002] During construction, there are usually silt layers in the geological stratification of some construction areas. The silt layer is below the plain soil and is deeper from the surface. It is plastic to the silt layer, and it is easy to cause the diameter of the pile hole to shrink before the reinforcement cage is placed. and collapse, so it is necessary to place a steel casing for support and protection after drilling. [0003] Related technologies, such as Chinese Invention Patent Application Publication No. CN110158579A disclose a kind of bored cast-in-place pile construction method, comprising the following steps: construction preparation, casing embedment, clay slurry making, drilling into holes, cleaning holes, hoisting reinfor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/38E02D7/18
CPCE02D5/38E02D7/18
Inventor 赵鹏飞郭翔杨泽文仲天章睿李纪荣
Owner 湖北中南岩土工程有限公司
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