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Continuous underground wall constructing method with linked tubular pile and its special linked tubular pile hole former

An underground diaphragm wall and construction method technology, applied in sheet pile walls, foundation structure engineering, construction, etc., can solve problems such as difficulty in stabilizing trench walls, constructing underground diaphragm walls, and multiplying investment, and achieves low sinking resistance , good anti-seepage effect and short construction period

Inactive Publication Date: 2005-04-20
谢庆道
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

When there are unfavorable geological conditions such as groundwater, the trench wall is difficult to stabilize, and the construction is very difficult
If steel sheet piles or prefabricated concrete sheet piles and other components are used, the investment will increase exponentially, and the anti-seepage effect will not be good
In the patent CN1221056A, a construction method and a special hole former for quickly and conveniently constructing concrete cylindrical piles used in soft soil foundations are disclosed, but a single cylindrical pile cannot conveniently and economically construct an underground continuous wall

Method used

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  • Continuous underground wall constructing method with linked tubular pile and its special linked tubular pile hole former
  • Continuous underground wall constructing method with linked tubular pile and its special linked tubular pile hole former
  • Continuous underground wall constructing method with linked tubular pile and its special linked tubular pile hole former

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Embodiment Construction

[0020] The essence of the implementation method of the present invention is to combine the cast-in-place concrete tubular piles into one body to form an underground continuous wall by using the jointed tubular pile hole forming device with male and female guides. The method is as follows:

[0021] (A) Install ring-shaped supporting pile shoes 4 with cutting surfaces at the bottom of the cylinder cavity 3 of all combined cylinder pile hole formers;

[0022] (B) Place the first combined tube pile hole forming device upright at the construction position and apply pressure on the vibrating head 7, so that the combined tube pile hole forming device sinks to the soft soil layer at the design depth, and the displaced soil Discharge from the mud outlet 8 of the conjoined barrel pile hole forming device;

[0023] (C) Connect and position the male connector 9 on the second conjoined cylindrical pile hole former with the female connector 10 of the first conjoined cylindrical pile hole fo...

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Abstract

The invention relates to a construction method for an underground continuous wall of combined barrel piles and a special-purpose combined barrel pile hole forming device for the anti-seepage project of soft soil foundation. During the construction, two hole formers with male and female connectors are used to successively connect and sink into the soft soil layer, and then pour concrete into the first hole former and pull it up to complete the first hole former. For the barrel pile, continue to connect the extracted hole former and the second hole former and sink, then pull up and pour the second hole former, and so on to form the underground continuous wall of the conjoined barrel pile. The construction method is fast, economical and effective. The special conjoined barrel pile hole forming device has a simple structure, and can discharge soil synchronously during use, with small sinking resistance and reduced earthwork volume.

Description

Background technique: [0001] The invention relates to a construction method for an underground diaphragm wall used in anti-seepage engineering for soft soil foundations, and at the same time relates to a jointed barrel pile hole former specially used for construction. [0002] Diaphragm walls are widely used in anti-seepage of reservoir dams, basements, foundations of port engineering sluices, and river banks. Building the underground diaphragm wall now is to excavate the trench first, and then pour concrete to become an impermeable diaphragm wall. This method has a large amount of earthwork and a large amount of concrete in the construction process, and the construction period is long and the cost is relatively high. When there are unfavorable geological conditions such as groundwater, the trench wall is difficult to stabilize, and the construction is very difficult. If steel sheet piles or prefabricated concrete sheet piles and other components are used, the investment wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/18
CPCE02D5/18
Inventor 谢庆道谢庆华
Owner 谢庆道
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