CN214401801U

CN214401801U - Strut and block integrated enclosure system for firstly supporting and then digging water stopping groove piles and inclined tubular piles

Info

Publication number: CN214401801U
Application number: CN202022129287.1U
Authority: CN
Inventors: 周玉石; 谢晓东; 刘国锋; 谢益飞
Original assignee: Shanghai Chengdi Rock Soil Design Co ltd; Shanghai Chengdixiangjiang Data Technology Co ltd; Shanghai City Land Construction Engineering Co ltd
Current assignee: Shanghai Teyu Technology Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-10-15
Anticipated expiration: 2030-09-25

Abstract

The utility model relates to a supporting and blocking integrated enclosure system of a water stopping groove pile and an oblique tubular pile, which comprises a square pile with a water stopping groove, a hollow tubular pile and a top pressing ring beam; the square piles with the water stopping grooves are arranged in front and back rows; the hollow pipe pile is inserted into a soil body in a direction of a foundation pit inclined by 10-25 degrees; the hollow pipe pile is connected with the top pressing ring beam and the connecting beam. The utility model has the advantages that: the square pile with the water stopping groove and the hollow pipe pile are standard components, so that the quality is guaranteed; the site construction machine is pressed into the soil body, so that the construction is convenient; the factory production and the cost are superior; no pollution such as slurry and the like, and environmental protection.

Description

Strut and block integrated enclosure system for firstly supporting and then digging water stopping groove piles and inclined tubular piles

Technical Field

The utility model relates to an underground works field is relevant, concretely relates to foundation ditch engineering technical field, a strut fender integral type enclosure system who digs stagnant water groove stake and slant tubular pile after propping earlier.

Background

The development of the country is increasingly prosperous, a building is pulled out, and the utilization of underground space is increasingly wide. The underground enclosing forms are developed along with the development of the underground enclosing forms, and the enclosing forms are mainly divided into self-stabilizing forms, supporting forms and anchor pulling forms: self-stabilized gravity type retaining walls with cement soil mixing piles, cantilevers such as piling piles and double-row doors and the like; the support type mainly comprises row piles and other horizontal steel concrete supports; the anchor pulling type is mainly a supporting form combining a row pile and the like with anchor pulling. Each form has its own advantages and disadvantages: the self-stabilizing construction is simple, the adaptability is strong, the construction operation space in the foundation pit is not occupied, and meanwhile, the economy is good, but the self-stabilizing construction method is often used for the enclosure of a common shallow foundation pit; the support type enclosure is used for enclosing with high environmental requirements or deeper excavation depth, the safety is high, but often the construction period is more than one year, a support is formed in a foundation pit, a certain construction operation space is limited, the economy is general, and the problem of pollution caused by demolishing residues exists in the later period; the anchor pulling type is similar to the support type, but has no influence on the construction space, and can flexibly strengthen coordination aiming at local deformation positions, but compared with the support type, the whole safety is slightly lower, the anchor pulling type can be used conveniently, and the anchor pulling type has better economical efficiency and can not be used due to the restriction of red lines for construction; the integrated supporting block has the advantages of construction convenience and adaptability of a self-stabilizing mode, does not occupy construction operation space in a foundation pit, has similar safety with a supporting mode, and does not have the problem of secondary concrete pollution caused by later-stage demolition.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an earlier prop and dig the retaining integral type enclosure system of stagnant water groove stake and slant tubular pile afterwards, can effectively solve above-mentioned problem. The self-stabilizing enclosure has the advantages of self-stabilizing enclosure, is simple to construct, does not influence the construction space in a foundation pit after construction, and simultaneously has the advantages of supporting safety.

The utility model discloses a realize through following technical mode:

a supporting and blocking integrated enclosure system for supporting and then digging a water stopping groove pile and an inclined tubular pile is disclosed, and comprises a square pile with a water stopping groove, a hollow tubular pile and a top pressing ring beam; the square piles with the water stopping grooves are arranged in front and back rows; the hollow pipe pile is inserted into a soil body in a direction of a foundation pit inclined by 10-25 degrees; the hollow pipe pile is connected with the top pressing ring beam and the connecting beam.

The interval between the front row pile and the rear row pile of the square pile with the water stopping groove is 3-5 meters.

A short pile is arranged at the interval of 5-8 m between the front row of square piles with the water stopping grooves.

The rear row of piles of the square piles with the water stopping grooves are continuously arranged or arranged at intervals.

And a connecting beam is arranged between the front and rear coping ring beams of the square pile with the water stop groove at the position of the hollow pipe pile.

The top end of the hollow pipe pile is connected with the connecting beam.

Hollow pipe pile stretches into the foundation ditch by the short pile bottom of front bank in, hollow pipe pile does not expose the excavation face.

Compared with the prior art, the utility model has the advantages of it is following:

1. the enclosure system is supported by the front row of piles, and the front row of piles and the rear row of piles are jointly supported by the oblique pipe piles, so that the deformation of the deep foundation pit enclosure is effectively controlled, and the safety of foundation pit construction is ensured;

2. the support and the enclosure can be constructed simultaneously in a coordinated mode, the integrated enclosure of the support and the enclosure can be formed after the top ring pressing beam and the connecting beam are poured, and the construction period is saved by more than one month.

3. The inclined pipe pile extends below the excavation surface of the foundation pit through the lower end of the front row short pile, so that the maximization of the construction surface in the foundation pit is ensured, and the structural construction is not influenced;

4. compared with the enclosing form of cast-in-situ bored pile and support, the construction cost is saved by 10-20%.

Drawings

FIG. 1 is a schematic sectional view of a retaining and retaining integrated enclosure system with water stopping groove piles and inclined tubular piles firstly retained and then dug

1 square pile long pile with water stopping groove, 2 square pile short pile with water stopping groove, 3 hollow pipe pile, 4 connecting beam and 5 top pressing ring beam

FIG. 2 is a schematic plan view (I) of a supporting and retaining integrated enclosure system with water stopping piles and inclined tubular piles (rear row piles are arranged at intervals)

FIG. 3 is a schematic plan view of a supporting and retaining integrated enclosure system with water stopping piles and inclined tubular piles (second) (rear row piles are arranged continuously)

FIG. 4 is a side view of a supporting and blocking integrated enclosure system with water stopping groove piles and inclined pipe piles supported and excavated firstly

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The present embodiment is implemented on the premise of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Examples

As shown in fig. 1 to 3, the support and baffle integrated enclosure system for supporting and then digging water stopping groove piles and inclined tubular piles comprises

square piles

1 and 2 with water stopping grooves, hollow tubular piles 3 and a top pressing ring beam 5; the

square piles

1 and 2 with the water stopping grooves are arranged in front and back rows; the hollow pipe pile 3 is inserted into a soil body in a direction of a foundation pit inclined by 10-25 degrees; the hollow pipe pile 3 is connected with a top pressing ring beam 5 and a connecting beam 4.

The utility model relates to an earlier prop and dig stagnant water groove stake after and keep off integral type enclosure system with propping of slant tubular pile, its construction step as follows:

1. construction positioning and paying off;

2. positioning a construction machine, and constructing

square piles

1 and 2 with water stopping grooves;

3. positioning a construction machine, and constructing the oblique hollow pipe pile;

4. grooving and excavating, wherein a top ring beam 5 and a connecting beam 4 are arranged before and after construction, so that the hollow tubular pile 3 and the square pile 1 with the water stopping groove are integrated;

5. excavating a foundation pit after the top ring beam 5 and the connecting beam 4 reach the design strength;

6. excavating to the bottom of the pit, and constructing an underground structure part;

7. and backfilling after the underground structure is constructed to positive and negative zero, removing the hollow pipe pile 3, and tracking and backfilling or grouting.

Claims

1. A first-support and then-dig water stopping groove pile and a support and baffle integrated enclosure system of an oblique tubular pile are characterized in that the enclosure system consists of a square pile with a water stopping groove, a hollow tubular pile and a top pressing ring beam; the square piles with the water stopping grooves are arranged in front and back rows; the hollow pipe pile is inserted into a soil body in a direction of a foundation pit inclined by 10-25 degrees; the hollow pipe pile is connected with the top pressing ring beam and the connecting beam.

2. The bracing and blocking integrated enclosure system of the water stopping groove piles and the inclined tubular piles, according to claim 1, is characterized in that the front row piles and the rear row piles of the square piles with the water stopping grooves are spaced by 3-5 meters.

3. The bracing-blocking integrated enclosure system of the water stopping groove piles and the oblique tubular piles after bracing according to claim 1, wherein a short pile is arranged at an interval of 5-8 m between the front row of piles of the square piles with the water stopping grooves.

4. The bracing-blocking integrated enclosure system of the water stopping groove piles and the oblique tubular piles after bracing according to claim 1, wherein the rear row piles of the square piles with the water stopping grooves are continuously arranged or arranged at intervals.

5. The bracing-blocking integrated enclosure system of the water stopping groove piles and the inclined tubular piles after bracing according to claim 1, wherein connecting beams are arranged between the front and rear jacking ring beams of the square piles with the water stopping grooves and at the positions of the hollow tubular piles.

6. The bracing-blocking integrated enclosure system of the water-stopping groove piles and the inclined tubular piles after bracing according to claim 1, wherein the top ends of the hollow tubular piles are connected with the connecting beams.

7. The bracing-retaining integrated enclosure system for the water-stopping groove piles and the oblique tubular piles after bracing according to claim 1, wherein the hollow tubular piles extend into the foundation pit from the bottoms of the front row short piles, and the excavation surfaces of the hollow tubular piles are not exposed.