No-disturbance carbonization pile forming equipment and construction method thereof

A carbonized pile, non-disturbance technology, applied in the direction of sheet pile wall, foundation structure engineering, construction, etc., can solve the problems of insufficient bearing capacity of the pile body, incomplete reaction of magnesium powder, easy bulging, etc., to improve the quality of the pile, The effect of pile formation is good and the service life is increased

Active Publication Date: 2015-12-02
SHANXI PROVINCIAL RES INST OF COMM +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been found through practice that due to the rotation of the rotating blade in one direction during construction, the reaction between carbon dioxide and the magnesium powder in the soil is not complete, and some parts do not even react, resulting in poor

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  • No-disturbance carbonization pile forming equipment and construction method thereof

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Effect test

Embodiment 1

[0043] see figure 1 , The present invention provides a non-disturbance carbonized pile forming equipment, including a curing agent supply device, a foam supply device, and a stirring device 15 .

[0044] The pressure bearing capacity of the curing agent storage tank 4 is 2.1 MPa.

[0045] The foaming device 8 is an anionic surfactant, and its ratio with distilled water is 1:45.

[0046] The rotating speeds of the outer stirring shaft 16 and the inner stirring shaft 17 are both 40r / min, the diameter of the outer rotating blade 18 is 300mm, and the diameter of the inner rotating blade 19 is 200mm.

[0047] High-strength geogrid 13 has a tensile strength of 160kN / m at an elongation of 0.5% 2 .

[0048] The high-strength water film 12 has an internal water pressure of 200kN / m 2 .

[0049] The lifting speed of the stirring device 15 is 0.5m / min.

[0050] The pressure of the carbon dioxide pressure regulating valve is 200kPa.

Embodiment 2

[0051] Embodiment 2: the construction method of undisturbed carbonized pile forming pile, its steps are as follows:

[0052] A) Use bulldozers to level the selected area of ​​the ground surface. Generally, the leveling area should be larger than the area formed between the laid piles. The smoothness of the ground surface is suitable for the smooth operation of the construction machinery platform.

[0053] B) Select pile holes in the leveling area according to the design drawings, a total of 400, and determine the pile length and pile spacing and other indicators. The pile length determined in this example is 20m, and the pile spacing is 4m.

[0054] C) Put the dried curing agent into the curing agent storage tank 4, and carry out gas drying through the drying device, and at the same time, put the foaming agent into the foaming device 8 for carbon dioxide gas foaming.

[0055] D) Move the stirring device 15 to the preset pile position, turn on the stirring device 15 to the pene...

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Abstract

The invention discloses no-disturbance carbonization pile forming equipment and a construction method thereof. The equipment comprises a pile frame, a curing agent supply device, a foam supply device and a liftable stirring device arranged on the pile frame, wherein the liftable stirring device comprises a pile forming protective cover, an outer stirring shaft, an inner stirring shaft, an external rotating blade and an internal rotating blade; the inner stirring shaft is longer than the outer stirring shaft; the outer stirring shaft coats the inner stirring shaft; a cavity is formed between the outer stirring shaft and the inner stirring shaft; the outer stirring shaft is positioned in the pile forming protective cover; the external rotating blade is arranged at the bottom end part of the outer stirring shaft; the internal stirring blade is arranged at the bottom end part of the inner stirring shaft; the external rotating blade is higher than the internal rotating blade; the curing agent supply device generates a curing agent, and conveys the curing agent into the cavity between the outer stirring shaft and the inner stirring shaft; and the foam supply device generates foams, and conveys the foams into the cavity between the outer stirring shaft and the inner stirring shaft. The equipment is reasonable in structure, environment-friendly, energy-saved and simple in operation.

Description

technical field [0001] The invention belongs to the field of civil engineering foundation treatment, and relates to a non-disturbance carbonized pile forming equipment and a construction method thereof. Background technique [0002] In recent years, due to the rapid development of the transportation industry, more and more heavy-duty traffic and even extra-heavy traffic have appeared. Although the increase of traffic load has greatly promoted economic growth, it has brought about many roadbed diseases, such as road surface cracking, rutting, roadbed subsidence, uneven subsidence, etc., and has also caused many traffic accidents. Based on this background, foundation reinforcement technology came into being, and pile foundation reinforcement is a popular foundation reinforcement technology at present. [0003] The current pile foundation reinforcement technology mainly includes sinking pipe grouting pile, squeezed and expanded multi-branch pile, bored grouting pile, lime-soil...

Claims

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Application Information

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IPC IPC(8): E02D5/46
Inventor 马林张军刘海赵建斌
Owner SHANXI PROVINCIAL RES INST OF COMM
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