CN218148332U

CN218148332U - Drainage vibration pile sinking structure

Info

Publication number: CN218148332U
Application number: CN202220584083.3U
Authority: CN
Inventors: 庞作会; 胡玉银; 陈建兰
Original assignee: Shanghai Feisheng Enterprise Management Co ltd
Current assignee: Shanghai Feisheng Enterprise Management Co ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-12-27
Anticipated expiration: 2032-03-17

Abstract

The application discloses drainage vibration pile sinking structure, it includes pile sinking ground base, set up in pile body and at least one drainage channel in the pile sinking ground base, wherein drainage channel arranges the lateral periphery of pile body and with the pile body interval sets up. Adopt drainage vibration pile sinking structure in this application for the pore water accessible drainage channel that is in high-pressure state in the soil body is arranged to ground, and pile foundation bearing capacity can increase to its design limit bearing capacity fast. In addition, the structure is low in cost, the bearing capacity of the pile foundation can be rapidly increased to the design limit bearing capacity after the structure is adopted, and the engineering progress can be accelerated.

Description

Drainage vibration pile sinking structure

Technical Field

The utility model belongs to a building engineering field particularly belongs to a vibration pile sinking structure.

Background

The resonance-free vibration pile sinking method drives the pile body to vibrate through mechanical vibration, so that soil around the pile body is fluidized, and the pile can be quickly sunk into the soil layer; certainly, the vibration frequency is limited, so that the soil body cannot resonate, and the influence on the surrounding environment cannot be greatly influenced. Due to the advantages, the method is often adopted in projects with tight construction period and sensitive surrounding environment, such as municipal administration, urban buildings, airports and offshore projects.

The resonance-free vibration pile sinking method has the defect that the bearing capacity of the pile foundation is slowly increased. Research shows that after pile sinking is finished for one month, the bearing capacity is only increased to 60% of the design limit bearing capacity; after three months of pile sinking, the bearing capacity is increased to 100% of the design limit bearing capacity.

Therefore, the above limitations of the pile driving structure limit the wide application of the resonance-free vibration pile driving method.

SUMMERY OF THE UTILITY MODEL

To this end, some embodiments of the present application propose a drainage vibration pile sinking structure comprising a pile sinking foundation, a pile body disposed within the pile sinking foundation and at least one drainage channel, wherein the drainage channel is disposed at a lateral periphery of the pile body and spaced apart from the pile body.

In some embodiments, the pile body is a steel pile body.

In some embodiments, the drainage channel may employ a common sand well, a bagged sand well, or a plastic drainage strip.

In some embodiments, for piles no more than 1.2 meters in diameter, 2-3 drainage channels may be arranged around the pile, the drainage channels being about 100 millimeters in diameter or size.

In some embodiments, the drainage channel is spaced from the pilings by about 1 meter.

In some embodiments, the depth of the drainage channel, which may be the same as the depth of the pile, or slightly less, need not exceed the depth of the pile.

In some embodiments, a water pump coupled to the drainage channel may be further included, and the water pump pumps water to accelerate the drainage speed.

Adopt drainage vibration pile sinking structure in this application, owing to set up drainage channel around the stake for the pore water accessible drainage channel that is in high-pressure state in the soil body is arranged to ground, then the pore water pressure can be dissipated fast and resume to the normality, and correspondingly, pile foundation bearing capacity can increase to its design limit bearing capacity fast. This kind of structure cost is not high, adopts this structure back pile foundation bearing capacity can increase to its design limit bearing capacity fast. After the bearing capacity detection is qualified, the subsequent construction can be carried out, and the project progress can be accelerated.

Drawings

Fig. 1 is a side cross-sectional view of a drainage vibration pile driving structure according to an embodiment of the present application.

Fig. 2 is a top view of a drainage vibration pile sinking structure according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Fig. 1, 2 show a drainage vibration pile driving structure according to an embodiment of the present application, which may be used for resonance vibration pile driving or resonance-free vibration pile driving. The drainage vibration pile sinking structure comprises a pile sinking foundation 100, a pile body 200 arranged in a soil body 101 of the pile sinking foundation 100 and at least one drainage channel 300, wherein the drainage channel 300 is arranged at the lateral periphery 201 of the pile body 200 and is arranged at a distance from the pile body 200.

The foundation of the pile sinking ground is any form of foundation and is an application area of the pile body. The pile 200 may be, for example, a square pipe pile or a circular pipe pile, and the material may be, for example, a steel pipe pile. The drainage channel can adopt a common sand well, a bagged sand well or a plastic drainage belt, and is set by adopting different construction methods according to different drainage channel types. The number of the drainage channels can be any number, the diameter or the size of the drainage channels is not large, the number of the drainage channels is not large, and the drainage channels can be used as long as pore water can be conveniently and quickly drained. For piles no more than 1.2 meters in diameter, 2-3 drainage channels may be arranged around the pile, the drainage channels being about 100 millimeters in diameter or size.

The interval between the drainage channel and the pile body is about 1 meter.

The depth of the drainage channel, which is the same as or slightly less than the depth of the pile, need not exceed the depth of the pile.

In some expanded embodiments of the present application, a water pump coupled to the drainage channel may be further included, and the water pump pumps water to accelerate the drainage speed.

The drainage channel is arranged around the pile body of the vibration pile sinking, so that pore water in a high-pressure state in a soil body is drained to the ground through the drainage channel, the pressure of the pore water can be quickly dissipated and recovered to a normal state, and correspondingly, the bearing capacity of the pile foundation can be quickly increased to the design limit bearing capacity of the pile foundation.

The utility model discloses the back drainage structures of innovation is convenient for implement, can set up drainage channel around the stake before the vibration pile sinking begins or after finishing. The drainage channel may be a plain sand well, a bagged sand well, or a plastic drainage strip, as is often used in pre-pressed foundations. The structure has low cost, and the bearing capacity of the adopted rear pile foundation can be rapidly increased to the design limit bearing capacity. After the bearing capacity is detected to be qualified, subsequent construction can be carried out, and the project progress can be accelerated.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a drainage vibration pile sinking structure which characterized in that: the drainage system comprises a pile sinking foundation, a pile body arranged in a soil body of the pile sinking foundation and at least one drainage channel, wherein the drainage channel is arranged on the lateral periphery of the pile body and is arranged at an interval with the pile body.

2. A drainage vibration pile driving structure according to claim 1, wherein: the pile body is a steel pile body.

3. A water draining vibration pile sinking structure according to claim 1, wherein: the drainage channel adopts one or more of a common sand well, a bagged sand well or a plastic drainage belt.

4. A drainage vibration pile driving structure according to claim 1, wherein: for the pile with the diameter not more than 1.2 meters, 2-3 drainage channels are arranged around the pile body, and the size of the drainage channels is 100 millimeters.

5. A drainage vibration pile driving structure according to claim 1, wherein: the interval between the drainage channel and the pile body is 1 meter.

6. A drainage vibration pile driving structure according to claim 1, wherein: the depth of the drainage channel does not exceed the depth of the pile body.

7. A drainage vibration pile driving structure according to claim 1, wherein: the water pump is coupled to the drainage channel and used for pumping water, and the drainage speed is increased.