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Construction method and construction equipment for immersed tube pedestal pile

A construction method and bottom-expanding pile technology, which is applied in sheet pile walls, foundation structure engineering, construction, etc., can solve problems such as filling materials are easy to get stuck, filling materials cannot be squeezed out, and bottom expansion is difficult

Pending Publication Date: 2022-03-15
王磊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0031] The steel sheet pile boots are pre-buried under the outer pipe to seal the bottom and water seal; the static pressure of the inner pipe and the filling material in the outer pipe are easy to get stuck, causing the outer pipe to sink due to friction, the filling material cannot be squeezed out, and it is difficult to expand the bottom; further improvement of equipment and equipment is required. construction technology

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  • Construction method and construction equipment for immersed tube pedestal pile
  • Construction method and construction equipment for immersed tube pedestal pile

Examples

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Embodiment Construction

[0056] A construction method for piles with sinking tubes and bottom expansion piles, including pile drivers in place, pipe sinking, bottom expansion, and forming. Next to the constructed pile;

[0057] (2) Immersed tube: ①The full hydraulic holding device holds the inner and outer double casings and the outer pipe, and uses the weight of the static pile machine to hold the inner and outer double casings together to sink the pipe to a certain depth; ②When the counterweight of the hard soil interlayer is not enough, One of the following methods is adopted: method A: (a) holding pressure, top pressure or reverse pressure, the static pressure inner pipe goes out of the outer pipe to a certain depth, and static pressure squeezes the soil under the outer pipe; (b) holding pressure, top pressure or reverse pressure pressure, the static pressure outer tube sinks; repeat (a) (b) until it passes through the hard soil interlayer;

[0058] Method B: (a) lift the inner pipe to a certain ...

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Abstract

The invention discloses a construction method and construction equipment for an immersed tube pedestal pile. The construction method comprises the steps of pile machine in-place, tube immersing, pedestal expanding and forming. And pipe sinking: the full-hydraulic holding and pressing device holds and presses the outer pipe of the inner and outer double sleeves, and the inner and outer double sleeves are held and pressed by the weight of the static pile pressing machine to sink the pipe to a certain depth. The construction method is convenient to construct, high in efficiency and good in construction quality.

Description

technical field [0001] The invention relates to a construction method and construction equipment for an immersed pipe bottom expansion pile. Background technique [0002] The existing piles mainly include the following types: [0003] Perforated cast-in-place pile: equipment includes single hammer double casing, steam hammer, inner and outer double casing; immersed pipe process: steam hammer, etc., drive the inner and outer double casing with reinforced concrete prefabricated pile tip into the soil for setting Depth; Bottom expansion process: The inner pipe is hit by a steam hammer, and the dry hard concrete put into the outer pipe is hammered and extruded from the lower part of the outer pipe to form an enlarged head. [0004] Frank pile: equipment includes single hammer and single tube: heavy hammer diameter 230-275mm, length 5.5-6.5m, mass 1300kg-2500kg put into the outer tube casing; immersed tube process: hoist lifts heavy hammer, free fall hammer Hit the top of the "...

Claims

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Application Information

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IPC IPC(8): E02D5/50E02D5/44
CPCE02D5/50E02D5/44
Inventor 王磊童金清刘建刚薛晓红余淑芬江彦达王爱红
Owner 王磊