Construction method of building pile foundation

A construction method and technology of construction piles, which are applied in construction, foundation structure engineering, sheet pile walls, etc., can solve the problems of building safety performance, pile foundation compressive strength, large porosity, etc., and improve waterproof and anti-seepage performance , Improve the compressive strength and impermeability, improve the effect of compressive strength

Inactive Publication Date: 2020-08-21
广东中立建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above existing technical solutions have the following defects: since the pile foundation holes are all located below the ground, there will inevitably be groundwater in the pile foundation holes, so that the water content in the pile foundation holes is relatively large, but the existing The porosity of concrete is relatively large, so that the water in the pile foundation hole can easily penetrate into the concrete through the tiny cracks in the concrete, which makes the compressive strength of the pile foundation easily affected, and may even affect the safety performance of the building. Therefore, there is still room for improvement

Method used

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  • Construction method of building pile foundation
  • Construction method of building pile foundation
  • Construction method of building pile foundation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] refer to figure 1 , is a kind of construction method of building pile foundation disclosed by the present invention, comprises the following steps:

[0077] Step (1), measuring and setting out, is as follows:

[0078] Level and tamp the foundation, then measure and mark the position of the pile foundation according to the construction design drawings.

[0079] Step (2), excavate the installation hole, as follows:

[0080] According to the size of the protective cover, excavate the installation hole for burying the protective cover at the position marked in step (1), and make the excavation depth of the installation hole consistent with the length of the protective cover.

[0081] Step (3), install the protective cover, as follows:

[0082] The protective sleeve is set on the opening of the mounting hole, and the protective sleeve is pressed against the inner wall of the mounting hole, so that the protective sleeve is pre-fixed in the mounting hole.

[0083] Step (4)...

Embodiment 2

[0093] The difference from Example 1 is that the raw material components and contents of the cement mortar are shown in Table 1.

Embodiment 3

[0095] The difference from Example 1 is that the raw material components and contents of the cement mortar are shown in Table 1.

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Abstract

The invention relates to the technical field of building construction, in particular to a construction method of a building pile foundation. The construction method includes the following steps of (1)alignment measurement; (2) excavation of an installing hole; (3) installation of a protective sleeve; (4) drilling; (5) hole cleaning; (6) hoisting and placement of a steel reinforcement cage; and (7) pouring of cement mortar, wherein the cement mortar comprises the following components including, by mass, 50-65 parts of cement, 15-20 parts of water, 60-80 parts of coarse aggregate, 30-45 parts of fine aggregate, 1-3 parts of borax, 0.5-1 part of zirconium oxychloride, and 0.1-0.2 part of ammonium molybdate. By means of the construction method of the building pile foundation, the effect of reducing influence, on the compressive strength of a pile foundation, of moisture in a pile foundation hole is achieved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for building pile foundations. Background technique [0002] Pile foundation is a commonly used foundation form in industrial and civil construction projects. Pile foundation refers to a deep foundation composed of piles and pile caps connected to the top of the piles or a single pile foundation connected by columns and pile foundations. If the pile body is completely buried in the soil and the bottom of the cap is in contact with the soil, it is called a low cap pile foundation; if the upper part of the pile body is exposed to the ground and the bottom of the cap is above the ground, it is called a high cap pile foundation. Construction pile foundations are usually low cap pile foundations. [0003] Existing building pile foundation construction usually first measures and sets out the line on the foundation, determines the drilling position,...

Claims

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Application Information

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IPC IPC(8): E02D5/36E02D27/12C04B28/04
CPCC04B28/04C04B2201/50E02D5/36E02D27/12C04B18/12C04B22/0013C04B22/00C04B22/08
Inventor 陈梓鑫
Owner 广东中立建设有限公司
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