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Foundation pile foundation hole forming construction method

A construction method and technology of foundation piles, which are applied in basic structure engineering, drilling equipment and methods, sheet pile walls, etc., can solve the problem that the shape and size cannot meet the design requirements, the slag at the bottom of the pile cannot be effectively removed, and the expansion head reaming The effect is limited, etc., to achieve the effect of fine construction steps, improved construction efficiency, and convenient operation

Pending Publication Date: 2022-04-15
CHINA MCC5 GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current manhole excavation piles still have the following disadvantages: high risk, difficult safety control, high labor intensity before pile foundation construction, long construction period, and high cost of safety measures
The expansion head of the rotary excavation pile has limited reaming effect, the shape and size of the reamed hole cannot meet the design requirements, and the slag at the bottom of the pile cannot be effectively removed within the range of the expansion head, which affects the quality of the pile.

Method used

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  • Foundation pile foundation hole forming construction method
  • Foundation pile foundation hole forming construction method
  • Foundation pile foundation hole forming construction method

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Embodiment Construction

[0058] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0059] Such as Figure 1-18 As shown, a kind of foundation pile foundation hole forming construction method provided by the invention comprises the following steps:

[0060] Step 1. Site layout;

[0061] Step 2. Measurement and stakeout;

[0062] Step 3, the drilling rig is in place;

[0063] Step four, drilling into the hole;

[0064] Step five, steel casing installation;

[0065] Step six, expand the head excavation;

[0066] Step s...

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Abstract

The invention discloses a foundation pile foundation hole-forming construction method which solves the technical problems that in the prior art, the efficiency of foundation pile foundation hole-forming construction is low, or the chambering effect of an expanded head in foundation pile foundation hole-forming is not ideal. The method comprises the following steps: step 1, arranging a site; step 2, surveying and setting out; thirdly, a drilling machine is in place; 4, drilling to form a hole; step 5, mounting a steel casing; sixthly, an expanded head is excavated; and step 7, pore-forming detection. The device is scientific and reasonable in design and convenient to operate, not only can rapidly construct and form holes to meet the construction progress, but also can efficiently clear pile bottom slag to rapidly finish hole pile expanded head reaming construction, and the expanded head reaming construction effect is good.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a hole-forming construction method for foundation pile foundations. Background technique [0002] Foundation and foundation engineering is one of the leading projects of building construction, and it is also a part of the project with relatively complex construction technology, greater difficulty, longer construction period and more investment. In recent years, with the rapid development of my country's economic construction, urban construction has increased day by day, and the importance of foundation and foundation construction has attracted increasing attention and attention from all parties. At present, most large and medium-sized buildings in my country use pile foundations, and engineering piles generally use two methods. One is to use manual excavation. Although the quality of the holes is good, the degree of mechanization is low, and the hole-for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/44E02D5/68E21B7/00E21B7/20E21B7/28E21B25/00
Inventor 张海川罗恩洪汪勇东文元贾敏
Owner CHINA MCC5 GROUP CORP
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