Rammed pedestal pile back pressure device of immersed tube filling pile machine

A technology of sinking pipe grouting piles and bottom-expanding piles, which is applied to sheet pile walls, buildings, and foundation structure engineering, and can solve problems such as difficult pile top elevation, inability to construct rammed and expanded bottom piles, and difficult control

Active Publication Date: 2011-06-08
陈清贵 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing large-diameter immersed tube piles also have diameter shrinkage, insufficient concrete density, belt cages, floating cages, difficult control of pile top elevation, pipe plugging, and inability to construct rammed and expanded bottom piles. The bearing capacity of single piles varies greatly, making it difficult to control and other disadvantages

Method used

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  • Rammed pedestal pile back pressure device of immersed tube filling pile machine
  • Rammed pedestal pile back pressure device of immersed tube filling pile machine
  • Rammed pedestal pile back pressure device of immersed tube filling pile machine

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Embodiment Construction

[0036] see picture image 3 and Figure 4 , The construction ramming and expansion bottom pile back pressure device of the sinking tube grouting pile machine disclosed by the present invention includes a main body 15, a power unit 16, a back pressure cylinder 17, a piston body 18, and one-way valves 19, 20 and 21. The structure and background of the immersed tube grouting pile driver are the same, so they will not be described in detail.

[0037] The main body 15 is airtightly hinged on the upper end of the last construction steel pipe 5, so that the entire back pressure device is installed on the last construction steel pipe 5.

[0038] The power unit 16 , the back pressure cylinder 17 and the piston body 18 are installed in the main body 15 . The power unit 16 is made up of a motor 161 , an oil tank 162 , an oil pump 163 and an oil pipe 164 . The piston body 18 lower cavity and the construction steel pipe 5 and the reinforced concrete 23 in the construction steel pipe 5 c...

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Abstract

The invention discloses a rammed pedestal pile back pressure device of an immersed tube filling pile machine. The rammed pedestal pile back pressure device comprises a body, a power unit, a back pressure oil cylinder, a piston body and unidirectional valves; the body is hinged at the upper end of a construction steel tube in a sealing manner; the power unit controls the work of the back pressure oil cylinder; the back pressure oil cylinder and the piston body are arranged in the body; the lower cavity of the piston body, the construction steel tube and reinforced concrete in the cavity of the construction steel tube form a sealed cavity; a baffle plate for dividing the sealed cavity into an upper half cavity and a lower half cavity is arranged inside the lower cavity of the piston body; and the baffle plate, the piston body and the body in the upper cavity of the piston body are respectively provided with the unidirectional valves. The rammed pedestal pile back pressure device can enhance the solid-directional bearing capacity of a single pile, prevent drawing-down of the pile body, bringing-out of a reinforced steel bar cage by the construction steel tube and the concrete, and plugging of the construction steel tube by the concrete, seal the concrete, improve the construction efficiency and enhance the piling quality.

Description

technical field [0001] The invention belongs to the technical field of pile drivers, and relates to a pipe-immersed pile machine, in particular to a back pressure device for constructing rammed and expanded bottom piles. technical background [0002] Due to its advantages of bearing capacity, strong shear resistance, fast construction speed, and environmental protection, large-diameter immersed pipe piles are gradually being used. [0003] see figure 1 and figure 2 , the fuselage platform 7 is provided with a lifting mechanism 14, a piling table 4 and a main operating room 8, and the fuselage platform 7 is connected with the vertical movement mechanism 2 and the lateral movement mechanism 1 through the lifting mechanism 3, and the lifting mechanism 3 is connected with the machine Movable counterweights 6 can be placed between the body platforms 7, and the pile pressing platform 4 is symmetrically arranged with the main pile pressing oil cylinder group 9 and the auxiliary ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/44
Inventor 陈清贵周朝辉
Owner 陈清贵
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