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Fabricated slotting tube pipe for soft soil foundation treatment

A soft soil foundation and assembly technology, applied in the engineering field, can solve problems such as unsatisfactory control of foundation horizontal deformation, achieve the effects of facilitating standardized production, broad application prospects, and reducing construction costs

Pending Publication Date: 2020-01-21
ZHEJIANG SCI RES INST OF TRANSPORT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned semi-rigid or rigid piles usually have large bending stiffness and shear strength, which can effectively control the settlement deformation, it is still not ideal for the horizontal deformation control of the foundation near the top of the pile.

Method used

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  • Fabricated slotting tube pipe for soft soil foundation treatment
  • Fabricated slotting tube pipe for soft soil foundation treatment
  • Fabricated slotting tube pipe for soft soil foundation treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like Figure 1-3 As shown, the present invention provides an assembled slotted pipe pile for soft soil foundation treatment, including a pipe pile body 10 and a flank mechanism assembled in the pipe pile body 10, and further preferably, the pipe pile The body 10 may be a high-strength prestressed concrete pipe pile, and the pipe pile body 10 has a diameter of 300-600mm and a wall thickness of 70-130mm.

[0036] Further, the pipe wall at the upper part of the pipe pile body 10 is provided with through grooves 11; specifically, as shown in the figure, there are multiple groups of symmetrical through grooves 11 provided at the pipe wall at the upper part of the pipe pile body 10, preferably, the The length of the through groove 11 is 300-500 mm, and the width is 45-65 mm, and the position of the through groove 11 is at least 1.0 m below the pipe pile body 10 from the top.

[0037] Further preferably, the depth of the through grooves 11 runs through the wall thickness of t...

Embodiment 2

[0046] Such as Figure 4 As shown, the present invention provides an assembled slotted pipe pile for soft soil foundation treatment, including a pipe pile body 10 and a flank mechanism assembled in the pipe pile body 10, and further preferably, the pipe pile The body 10 may be a high-strength prestressed concrete pipe pile, and the pipe pile body 10 has a diameter of 300-600mm and a wall thickness of 70-130mm.

[0047] Further, the pipe wall at the upper part of the pipe pile body 10 is provided with through grooves 11; specifically, as shown in the figure, there are multiple groups of symmetrical through grooves 11 provided at the pipe wall at the upper part of the pipe pile body 10, preferably, the The length of the through groove 11 is 300-500 mm, and the width is 45-65 mm, and the position of the through groove 11 is at least 1.0 m below the pipe pile body 10 from the top.

[0048] Further preferably, the depth of the through grooves 11 runs through the wall thickness of ...

Embodiment 3

[0058] Such as Figure 5 As mentioned above, the present invention provides an assembled slotted pipe pile for soft soil foundation treatment, which includes a pipe pile body 10 and a flank mechanism assembled in the pipe pile body 10, and further preferably, the pipe pile The body 10 may be a high-strength prestressed concrete pipe pile, and the pipe pile body 10 has a diameter of 300-600mm and a wall thickness of 70-130mm.

[0059] Further, the pipe wall at the upper part of the pipe pile body 10 is provided with through grooves 11; specifically, as shown in the figure, there are multiple groups of symmetrical through grooves 11 provided at the pipe wall at the upper part of the pipe pile body 10, preferably, the The length of the through groove 11 is 300-500 mm, and the width is 45-65 mm, and the position of the through groove 11 is at least 1.0 m below the pipe pile body 10 from the top.

[0060] Further preferably, the depth of the through grooves 11 runs through the wal...

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Abstract

A fabricated slotting tube pipe for soft soil foundation treatment comprises a tube pile body and a side wing mechanism assembled in the tube pile body, wherein a through slot is formed in the tube wall on the upper portion of the tube pile body, the side wing mechanism comprises a bearing cylinder, a movable rod and a side wing structure, the bearing cylinder is movably connected with the movablerod, the side wing structure is arranged on the movable rod in a hinged mode, and two ends of the side wing structure can extend out of the through slot. The fabricated slotting tube pipe for the soft soil foundation treatment adopts fabricated design, facilitates standardized production, effectively improves lateral resistance of a shallow foundation, enhances control for deformation of a key area, reduces lateral deformation of the foundation, significantly improves stability of an embankment, and has wide utilization potentiality for high-fill embankment and deep soft soil foundation construction.

Description

technical field [0001] The invention belongs to the technical field of engineering, and more specifically relates to an assembled slotted pipe pile for soft ground treatment. Background technique [0002] Compared with the existing soft soil foundation reinforcement method and the traditional drainage consolidation method foundation treatment, the pile-soil composite foundation technology can greatly shorten the construction period and meet the strict settlement requirements, so it is widely used to support superstructures and embankments, especially for bearing Higher capacity semi-rigid or rigid piles. However, in recent years, in actual engineering, road and railway embankment landslide accidents using rigid piles to strengthen soft soil foundations are still reported from time to time. Due to the significant difference in pile-soil stiffness, the phenomenon of "pile-soil flow" may occur in the reinforcement area, and the main failure mode of the pile body is bending fai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/22E02D3/00
CPCE02D3/00E02D5/22
Inventor 叶霄詹伟余以强严守靖章天杰薛强
Owner ZHEJIANG SCI RES INST OF TRANSPORT
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