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Energy-saving type open caisson vibroflotation pile composite foundation construction technology

A composite foundation and construction technology technology, which is applied in basic structure engineering, sheet pile walls, buildings, etc., can solve the problems of poor quality of piles, difficult to deal with hole collapse phenomenon, affecting the bearing capacity of foundations, etc. The quality is easy to guarantee, the hole is not easy to collapse, and the construction cost is low.

Inactive Publication Date: 2017-05-31
IANGSU COLLEGE OF ENG & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the construction process of the traditional vibrating foundation, many problems have appeared, especially the serious hole collapse phenomenon in the process of pile hole formation, which has brought a lot of inconvenience to the on-site construction operation, and the quality of the final pile is also poor. Not very good, seriously affecting the bearing capacity of the foundation
At the same time, it is difficult, time-consuming and labor-intensive to deal with the phenomenon of hole collapse in the formed hole, which causes many problems to the construction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An energy-saving caisson vibro pile composite foundation construction technology, comprising the following steps:

[0024] 1) Positioning: The crane moves to the designated pile position, lifts the vibrator and keeps it stable and vertical. When the ground is undulating, the base should be adjusted to keep it level;

[0025] 2) Buried casing: Before burying, the center position of the pile hole should be determined and numbered according to the design drawing. Rush direction; the casing is made of 10mm steel plate, the inner diameter is 50mm larger than the outer diameter of the prefabricated tube well, the top surface is 300mm higher than the ground, and the buried depth is not less than 1.8m;

[0026] 3) Vibration sinking debugging: start the submersible motor to drive the eccentric block, so that the vibrator produces high-frequency vibration, and at the same time start the water pump, spray high-pressure water through the nozzle to form a hole, the initial hole dept...

Embodiment 2

[0035] An energy-saving caisson vibro pile composite foundation construction technology, comprising the following steps:

[0036] 1) Positioning: The crane moves to the designated pile position, lifts the vibrator and keeps it stable and vertical. When the ground is undulating, the base should be adjusted to keep it level;

[0037] 2) Buried casing: Before burying, the center position of the pile hole should be determined and numbered according to the design drawing. Rush direction; the casing is made of 10mm steel plate, the inner diameter is 100mm larger than the outer diameter of the prefabricated tube well, the top surface is 500mm higher than the ground, and the buried depth is not less than 1.8m;

[0038] 3) Vibration sinking debugging: start the submersible motor to drive the eccentric block, so that the vibrator produces high-frequency vibration, and at the same time start the water pump, spray high-pressure water flow through the nozzle to form a hole, the initial hol...

Embodiment 3

[0047] An energy-saving caisson vibro pile composite foundation construction technology, comprising the following steps:

[0048] 1) Positioning: The crane moves to the designated pile position, lifts the vibrator and keeps it stable and vertical. When the ground is undulating, the base should be adjusted to keep it level;

[0049] 2) Buried casing: Before burying, the center position of the pile hole should be determined and numbered according to the design drawing. Rush direction; the casing is made of 10mm steel plate, the inner diameter is 75mm larger than the outer diameter of the prefabricated tube well, the top surface is 400mm higher than the ground, and the buried depth is not less than 1.8m;

[0050] 3) Vibration sinking debugging: start the submersible motor to drive the eccentric block, so that the vibrator produces high-frequency vibration, and at the same time start the water pump, spray high-pressure water flow through the nozzle to form a hole, the initial hole...

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Abstract

The invention discloses an energy-saving type open caisson vibroflotation pile composite foundation construction technology. A construction method of the technology includes the following steps that a, positioning is carried out; b, pile casing embedding is carried out; c, vibroflotation sinking debugging is carried out; d, prefabricated tube well embedding is carried out; e, vibroflotation sinking is carried out; f, prefabricated tube well spreading is carried out; g, vibroflotation sinking is continuously carried out; h, energy-saving mixing material pouring is carried out; k, vibration and pile forming are carried out; and m, transposition is carried out. The energy-saving type open caisson vibroflotation pile composite foundation construction technology has the beneficial effects that the technology is reliable, construction is easy and convenient, the construction cost is low, re-utilization of resources can be achieved, hole collapsing is not prone to occurring in the hole forming process, the pile body quality is easily guaranteed, the foundation stabilization speed is high, the foundation stabilization effect is good, and the foundation bearing force is high.

Description

technical field [0001] The invention relates to an energy-saving caisson vibro pile composite foundation construction technology, which belongs to the technical field of civil engineering construction. Background technique [0002] During the construction process of the traditional vibrating foundation, many problems have appeared, especially the serious hole collapse phenomenon in the process of pile hole formation, which has brought a lot of inconvenience to the on-site construction operation, and the quality of the final pile is also poor. Not very good, seriously affecting the bearing capacity of the foundation. At the same time, it is difficult, time-consuming and labor-intensive to deal with the phenomenon of hole collapse in the formed hole, which causes many problems in the construction. Contents of the invention [0003] Purpose of the invention: Aiming at the deficiencies in the prior art, the present invention proposes a technology that is reliable, easy to con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D7/26E02D27/18E02D5/38E02D5/66
CPCE02D7/26E02D5/38E02D5/665E02D27/18
Inventor 高路恒
Owner IANGSU COLLEGE OF ENG & TECH
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