CN215629919U

CN215629919U - Use RJP stake to consolidate foundation ditch and compromise structure of biography power area

Info

Publication number: CN215629919U
Application number: CN202121376098.2U
Authority: CN
Inventors: 李泰炯; 孙学志; 孙伟波; 金炜楠; 傅春洋; 李平潮
Original assignee: Zhejiang Baoye Construction Group Co ltd
Current assignee: Zhejiang Baoye Construction Group Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-01-25
Anticipated expiration: 2031-06-21

Abstract

A structure for reinforcing a foundation pit and a force transmission belt by using RJP piles comprises a bottom plate 1 of the basement in the foundation pit, an outer wall body 11 poured with the basement is formed on the bottom plate 1, RJP piles 3 are constructed and formed in soil layers close to the outer sides of the middle and lower parts of the outer wall body 11, fender piles 2 are constructed and formed on the soil layers outside the RJP piles 3, and the outer sides of the RJP piles 3 and the fender piles 2 are cast and formed together; a concave table 32 is formed on the upper portion of the RJP pile 3 close to the outer wall body 11 in an excavation mode, a retaining layer 31 is formed on the RJP pile 3 between the concave table 32 and the fender post 2, a plurality of horizontal concrete support changing belts 4 are poured in the retaining layer 31, and the inner ends of the concrete support changing belts 4 are poured with the bottom plate 1 to be formed together. It adopts RJP stake to consolidate the fender pile among the foundation ditch excavation process, and after the foundation ditch excavation was accomplished, RJP excavation part remained the part, remained the part and can constitute the stagnant water maintenance on the fender pile, prevented the emergence of seepage on the fender pile lower part.

Description

Use RJP stake to consolidate foundation ditch and compromise structure of biography power area

The technical field is as follows:

the utility model relates to the technical field of foundation pit bracing, in particular to a structure which applies RJP piles to reinforce a foundation pit and is also provided with a force transmission belt.

Background art:

in the construction process of the existing foundation pit, the quality of the foundation pit enclosure can seriously affect the quality of a building, before the excavation of the foundation pit, a fender pile (wall) needs to be driven into a soil layer of the local periphery of the foundation pit, and the enclosure can adopt a row pile, an occlusive pile or an underground continuous wall; the row piles, the secant piles or the underground continuous wall can form a maintenance system outside the foundation pit, and after the foundation pit is excavated to the next waist rail and supported, the length of the enclosure piles (walls) reserved in the soil layer is reduced, the strength of the enclosure piles (walls) is weakened, safety accidents can occur when the foundation pit is continuously excavated, so that the enclosure piles (walls) need to be reinforced, and corresponding reinforcing structures are needed.

The utility model has the following contents:

the utility model aims to overcome the defects in the prior art, and provides a structure which applies RJP piles to reinforce a foundation pit and also gives consideration to a force transmission belt.

A structure for reinforcing a foundation pit by using RJP piles and considering a force transmission belt comprises a bottom plate of the basement in the foundation pit, wherein an outer wall body poured with the basement is formed on the bottom plate, RJP piles are constructed and formed in soil layers close to the outer sides of the middle part and the lower part of the outer wall body, fender piles are constructed and formed on the soil layers outside the RJP piles, and the outer sides of the RJP piles and the fender piles are poured and formed together; the upper portion of the RJP pile is close to the pile body of the outer wall body, a concave table is formed by excavation, a reserved layer is formed on the RJP pile between the concave table and the enclosing pile, a plurality of horizontal concrete support changing belts are poured in the reserved layer, and the inner ends of the concrete support changing belts and the bottom plate are poured and formed together.

Preferably, the fender pile is an occlusive pile, the occlusive pile is composed of a plurality of concrete piles, and the concrete support-changing belts are distributed on the fender pile at intervals.

Preferably, soil is backfilled in the concave platform of the RJP pile and the foundation pit on the upper side of the bottom plate.

Preferably, the top of the reserved layer on the RJP pile is provided with a surrounding purlin.

Preferably, a circle of high-pressure rotary jet grouting piles are constructed in soil layers outside the fender pile and outside the fender pile, and the high-pressure rotary jet grouting piles and the fender pile are cast and molded together.

Preferably, the upper ends of the high-pressure rotary jet grouting piles and the fender piles are poured with top pressure beams,

preferably, a plurality of floor slab force transmission belts are cast and formed between the outer wall body on the upper side of the RJP pile and the fender pile.

The utility model has the beneficial effects that:

it adopts RJP stake to consolidate the fender pile among the foundation ditch excavation process, and after the foundation ditch excavation was accomplished, RJP excavation part remained the part, remained the part and can constitute the stagnant water maintenance on the fender pile, prevented the emergence of seepage on the fender pile lower part to form and trade a part of area.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a partial top view of the connection of the RJP pile of the utility model with the fender pile 2.

In the figure: 1. a base plate; 11. an outer wall body; 2. a fender pile; 3. RJP piles; 31. a retention layer; 32. a concave platform; 4. replacing a support belt for concrete; 5. high-pressure jet grouting piles; 6. enclosing purlins; 7. a floor slab force transfer belt; 8. and (4) a capping beam.

The specific implementation mode is as follows:

example (b): as shown in fig. 1 to 2, the structure for reinforcing the foundation pit by using the RJP piles and considering the force transmission belt comprises a bottom plate 1 of the basement in the foundation pit, an outer wall body 11 poured with the basement is formed on the bottom plate 1, RJP piles 3 are constructed and formed in soil layers close to the outer sides of the middle part and the lower part of the outer wall body 11, fender piles 2 are constructed and formed on the soil layers outside the RJP piles 3, and the outer sides of the RJP piles 3 and the fender piles 2 are poured and formed together; a concave table 32 is formed on the upper portion of the RJP pile 3 close to the outer wall body 11 in an excavation mode, a retaining layer 31 is formed on the RJP pile 3 between the concave table 32 and the fender post 2, a plurality of horizontal concrete support changing belts 4 are poured in the retaining layer 31, and the inner ends of the concrete support changing belts 4 are poured with the bottom plate 1 to be formed together.

Preferably, the fender pile 2 is an occlusive pile, the occlusive pile is composed of a plurality of concrete piles, and the concrete support-changing belts 4 are distributed on the fender pile 2 at intervals.

Preferably, the concave platform 32 of the RJP pile 3 and the foundation pit on the upper side of the bottom plate 1 are filled with soil.

Preferably, the top of the remaining layer 31 on the RJP pile 3 is provided with a purlin 6.

Preferably, a circle of high-pressure rotary jet grouting piles 5 are constructed in soil layers on the outer side of the fender pile 2 and the outer side of the fender pile 2, and the high-pressure rotary jet grouting piles 5 and the fender pile 2 are cast and molded together.

Preferably, the upper ends of the high-pressure jet grouting piles 5 and the fender piles 2 are poured with top compression beams 8,

preferably, a plurality of floor slab force transmission belts 7 are cast and formed between the outer wall body 11 on the upper side of the RJP pile 3 and the fender pile 2.

The working principle is as follows: the utility model is a structure for reinforcing a foundation pit by using RJP piles and considering a waterproof curtain, and has the main technical points that the RJP piles 3 cast by the RJP construction method are used for reinforcing the fender post 2, after reinforcement is completed, the parts of the RJP piles 3 and earthwork in the foundation pit are continuously excavated, meanwhile, the parts of the RJP piles 3 are reserved, a reserved layer 3 of the reserved part is combined with a concrete support changing belt 4 on a basement bottom plate 1 to form a support changing belt, so that the fender post 2 can be reinforced, meanwhile, the reserved layer 3 also forms the waterproof curtain on the inner side of the fender post 2, the next waist beam and the original guard structure and the waterproof curtain below the support are reinforced under the condition of water leakage damage, and a new layer of waterproof curtain is formed; meanwhile, a part of the support changing belt is formed and can be used as a force transmission belt, so that excavation of earthwork is reduced, and safety of excavation of a foundation pit is ensured.

The examples are intended to illustrate the utility model, but not to limit it. The described embodiments may be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the appended claims should be accorded the full scope of the utility model as set forth in the appended claims.

Claims

1. The utility model provides an use RJP stake reinforcement foundation ditch to compromise and pass structure in power area, bottom plate (1) of basement in the foundation ditch, the shaping has outer wall body (11) of pouring the basement on bottom plate (1), its characterized in that: RJP piles (3) are constructed and formed in soil layers close to the outer sides of the middle and lower portions of the outer wall body (11), fender piles (2) are constructed and formed in soil layers on the outer sides of the RJP piles (3), and the outer sides of the RJP piles (3) and the fender piles (2) are cast and formed together; a concave table (32) is formed by excavating on the pile body, close to the outer wall body (11), on the upper portion of the RJP pile (3), a retaining layer (31) is formed on the RJP pile (3) between the concave table (32) and the enclosing pile (2), a plurality of horizontal concrete support changing belts (4) are poured in the retaining layer (31), and the inner ends of the concrete support changing belts (4) and the bottom plate (1) are poured and formed together.

2. The structure of claim 1, wherein the RJP pile is used for reinforcing the foundation pit and the force transmission belt is applied, and the structure is characterized in that: the fender pile (2) is an occlusive pile, the occlusive pile is composed of a plurality of concrete piles, and the concrete support-replacing belts (4) are distributed on the fender pile (2) at intervals.

3. The structure of claim 1, wherein the RJP pile is used for reinforcing the foundation pit and the force transmission belt is applied, and the structure is characterized in that: soil is backfilled in the concave platform (32) of the RJP pile (3) and the foundation pit on the upper side of the bottom plate (1).

4. The structure of claim 3, wherein the RJP pile is used for reinforcing the foundation pit and the force transmission belt is applied, and the structure is characterized in that: and a surrounding purlin (6) is arranged at the top of the reserved layer (31) on the RJP pile (3).

5. The structure of claim 1, wherein the RJP pile is used for reinforcing the foundation pit and the force transmission belt is applied, and the structure is characterized in that: and a circle of high-pressure rotary jet grouting pile (5) is constructed in soil layers on the outer side of the fender pile (2) and the outer side of the fender pile (2), and the high-pressure rotary jet grouting pile (5) and the fender pile (2) are poured and formed together.

6. The structure of claim 5, wherein the RJP pile is used for reinforcing the foundation pit and the force transmission belt is applied, and the structure is characterized in that: the upper ends of the high-pressure rotary jet grouting pile (5) and the fender pile (2) are poured with a top compression beam (8),

7. the structure of claim 1, wherein the RJP pile is used for reinforcing the foundation pit and the force transmission belt is applied, and the structure is characterized in that: and a plurality of floor slab force transmission belts (7) are cast and formed between the outer wall body (11) on the upper side of the RJP pile (3) and the fender post (2).