Booster station fabricated foundation and connecting method thereof

Abstract

The invention relates to the technical field of assembly type foundations, in particular to a booster station assembly type foundation and a connecting method thereof.The booster station assembly type foundation comprises a soil body foundation, a foundation pit, a plurality of reinforcing piles and a plurality of connecting structures, the foundation slab is arranged in the foundation pit; the settlement compensation layer is located between the foundation bottom plate and the soil body foundation and composed of an air pressure compensation part and a hydraulic system compensation part, vibration is buffered through an air bag, and settlement is adjusted through a hydraulic push rod; the transition layer is arranged between the soil body foundation and the settlement compensation layer; the device has the beneficial effects that the settlement compensation layer adopts an air pressure-hydraulic pressure composite compensation mechanism, the vibration of a building is buffered through an air bag structure of the air pressure compensation part, and the transmission of the vibration to a soil body is reduced so as to delay settlement; and meanwhile, real-time height adjustment is carried out through a hydraulic push rod of the hydraulic system compensation part and an intelligent pump station system after settlement occurs, so that active buffering of vibration and dynamic compensation of settlement are achieved, and a dual stable control system combining prevention and correction is formed.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated foundations, and in particular to a prefabricated foundation for a booster station and a connection method thereof. Background Art

[0002] In power engineering construction, booster stations are key nodes in the transmission system, and the stability of their foundation structures directly impacts the safe operation of the entire power facility. Traditional cast-in-place concrete foundations have long construction cycles, are subject to significant environmental constraints, and significantly disturb the surrounding soil. To overcome these shortcomings, prefabricated foundations are gaining popularity. Through factory prefabrication and on-site assembly, they significantly improve construction efficiency and minimize environmental damage.

[0003] However, the existing prefabricated foundations still have obvious shortcomings in dealing with foundation settlement problems. Settlement is mainly caused by factors such as soil consolidation, extrusion drainage, external loads and building vibration, which leads to uneven deformation between the foundation and the soil. At present, a common solution is to use a hydraulic system for settlement compensation, that is, to adjust the foundation height through devices such as hydraulic cylinders or jacks to maintain the level of the superstructure. However, this method has the problem of not being able to actively slow down settlement: the hydraulic system is only adjusted after settlement occurs, and it cannot reduce the settlement problem caused by building vibration from the root;

[0004] At the same time, when existing prefabricated foundations are transferring loads, uneven distribution of structural stiffness or unreasonable connection methods often lead to local soil stress concentration, accelerating squeezing, drainage and settlement in the area.

[0005] Therefore, a booster station assembled foundation and a connection method thereof are needed to overcome the above-mentioned problems. Summary of the Invention

[0006] In order to solve the above problems, an embodiment of the present invention provides a prefabricated foundation of a booster station and a connection method thereof, which achieves the purpose of solving the problems raised in the background technology.

[0007] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical solution: a prefabricated foundation of a booster station, comprising:

[0008] Soil foundation: buried inside the soil, surrounded by reinforcement piles to form a foundation pit, used to reinforce the soil and provide foundation pit space;

[0009] Foundation slab: located in the foundation pit and connected to the upper structure through pre-buried bolts, including the concrete slab and connecting bolts 1 and 2;

[0010] Settlement compensation layer: located between the foundation bottom plate and the soil foundation, it consists of an air pressure compensation part and a hydraulic system compensation part. It uses air bags to buffer vibration and hydraulic push rods to adjust settlement.

[0011] Transition layer: It is located between the soil foundation and the settlement compensation layer. It is composed of a chemical corrosion protection layer, a drainage layer and an anti-puncture layer. It has isolation, drainage and protection functions.

[0012] As a further improvement of the above technical solution:

[0013] The soil foundation includes reinforcement piles buried in the soil, and the reinforcement piles surround and form a foundation pit.

[0014] The foundation slab includes: a concrete slab body, a first bolt embedded in the concrete slab body for connecting to a building, and a second bolt embedded in the concrete slab body for connecting to a settlement compensation layer.

[0015] The air pressure compensation part includes: multiple airbags, which are fitted at the center position between the transition layer and the basic bottom plate, a connecting plate 1, which is fixedly connected to the top of the airbag and fixedly connected to the basic bottom plate, and a connecting plate 2, which is fixedly connected to the bottom of the airbag and fixedly connected to the transition layer.

[0016] The hydraulic system compensation part includes: a hydraulic push rod, which is arranged at intervals between multiple air bags, a hydraulic cylinder fixedly connected to the transition layer, and an oil circuit connected to the hydraulic push rod, which is arranged inside the transition layer and out from the top of the soil.

[0017] The connecting plate 1 is in a regular hexagon, and a plurality of the connecting plates 1 are assembled to form a honeycomb structure; the hydraulic push rod is arranged at the connection of every three connecting plates 1, and the bottom of every three adjacent connecting plates 1 are combined to form a ring that is sleeved on the outside of the hydraulic push rod piston rod.

[0018] The plurality of air bags press each other and the hydraulic push rod so that the hydraulic push rod is placed in a closed space.

[0019] The transition layer includes, from bottom to top, an anti-chemical corrosion layer, which is attached to the bottom of the foundation pit to isolate the soil, a drainage layer, which is formed by stacking gravel, and an anti-puncture layer, which isolates the gravel and drains water through surface openings.

[0020] The anti-chemical corrosion layer is an acid and alkali resistant geotextile, and the anti-puncture layer is a perforated steel plate.

[0021] A method for connecting a prefabricated foundation of a booster station comprises the following steps:

[0022] S1, soil foundation construction: driving reinforcement piles into the soil to form a foundation pit, and ensuring that the top elevations of the reinforcement piles are consistent;

[0023] S2, transition layer laying: laying the anti-chemical corrosion layer, drainage layer and anti-puncture layer in sequence at the bottom of the foundation pit;

[0024] S3, installation of the settlement compensation layer: the anti-puncture layer is welded and fixed to the second connecting plate, so that multiple airbags are arranged in a honeycomb pattern on the anti-puncture layer, and the bottom of the airbags is fixed by the second connecting plate;

[0025] The hydraulic push rod is installed at the connection of every three connecting plates. The piston rod is constrained by a collar. The oil circuit is pre-buried in the drainage layer and connected to an external intelligent pump station.

[0026] S4, positioning of foundation slab: hoist the concrete slab to above the settlement compensation layer, fasten it to connecting plate 1 with bolt 2, and expose bolt 1 for installation of upper building.

[0027] The beneficial effects of the embodiments of the present invention are:

[0028] The settlement compensation layer adopts an air pressure-hydraulic composite compensation mechanism. The air bag structure of the air pressure compensation part cushions the vibration of the building, reduces the transmission of vibration to the soil and delays the occurrence of settlement. At the same time, the hydraulic push rod and intelligent pump station system of the hydraulic system compensation part perform real-time height adjustment after settlement occurs, thereby realizing active buffering of vibration and dynamic compensation of settlement, forming a dual stability control system combining prevention and correction. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic cross-sectional view of the present invention from a first viewing angle;

[0030] Figure 2 is a schematic cross-sectional view of the present invention from a second viewing angle;

[0031] Figure 3 This is a schematic structural diagram of the settlement compensation layer of the present invention;

[0032] Figure 4 It is a structural schematic diagram of one part of the connecting plate of the present invention.

[0033] In the figure: 1. Soil foundation; 2. Foundation pit; 3. Foundation slab; 4. Settlement compensation layer; 5. Transition layer; 11. Reinforcement piles;

[0034] 31. Concrete slab; 32. Bolt 1; 33. Bolt 2;

[0035] 41. Air pressure compensation unit; 42. Hydraulic system compensation unit;

[0036] 411, airbag; 412, connecting plate 1; 413, connecting plate 2;

[0037] 421, hydraulic push rod; 422, oil circuit; 414, collar;

[0038] 51. Anti-chemical corrosion layer; 52. Drainage layer; 53. Anti-puncture layer. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0040] See also Figure 1-4 An embodiment of the present invention discloses an assembled foundation for a booster station, comprising a soil foundation 1, a foundation base plate 3, a settlement compensation layer 4, and a transition layer 5. The soil foundation 1 is disposed within the soil to reinforce the soil and form a foundation pit 2. The foundation base plate 3 is disposed within the foundation pit 2 to connect to a building. The settlement compensation layer 4 is disposed between the foundation base plate 3 and the soil foundation 1 to compensate for the settlement of the foundation base plate 3. The transition layer 5 is disposed between the soil foundation 1 and the settlement compensation layer 4 to protect the settlement compensation layer 4. The settlement compensation layer 4 includes an air pressure compensation portion 41 and a hydraulic system compensation portion 42. The settlement compensation layer 4 is designed to cushion vibrations through the air pressure compensation portion 41 and to adjust settlement through the hydraulic system compensation portion 42.

[0041] The soil foundation 1 includes reinforcement piles 11 embedded in the soil, which enclose a foundation pit 2. The reinforcement piles 11 can not only ensure the structural strength of the foundation pit 2, but also improve the shear resistance between the concrete slab 31 and the foundation pit 2.

[0042] In order to ensure the structural strength of the foundation pit 2 and improve the shear resistance between the concrete slab 31 and the foundation pit 2, prestressed concrete pipe piles or steel pipe piles can be used as reinforcement piles 11. The reinforcement piles 11, through their high-strength material properties and stable structural form, can not only effectively enhance the overall stability of the foundation pit 2, but also significantly improve the shear bearing capacity of the connection between the concrete slab 31 and the foundation pit 2, thereby ensuring the durability and safety of the engineering structure. Prestressed concrete pipe piles are suitable for working conditions with large loads due to their excellent compression and bending resistance; while steel pipe piles have good adaptability under complex geological conditions due to their high rigidity and ease of construction. The reasonable arrangement and construction of the reinforcement piles 11 can further optimize the coordinated force performance between the foundation pit 2 and the concrete slab 31, and achieve the reliability and economy of the overall structure.

[0043] The foundation slab 3 includes a concrete slab body 31 , a bolt 1 32 pre-buried in the concrete slab body 31 for connecting to the building, and a bolt 2 33 pre-buried in the concrete slab body 31 for connecting to the settlement compensation layer 4 .

[0044] The foundation slab 3 is composed of a concrete slab 31 with a thickness of not less than 400 mm, and a double-layer bidirectional steel mesh is configured inside to ensure its structural strength and overall stability. Bolt 1 32 and bolt 2 33 are embedded inside the concrete slab 31, of which bolt 1 32 is used to connect the upper building, and bolt 2 33 is used to fix the connecting plate 1 412 of the settlement compensation layer 4. The provision of bolt 2 33 enhances the reliable connection between the foundation slab 3 and the settlement compensation layer 4, ensuring the effective transfer of load and deformation coordination. The configuration of the double-layer bidirectional steel mesh further enhances the bending and shearing properties of the concrete slab 31, enabling it to adapt to uneven settlement and external loads, thereby improving the durability and safety of the overall structure.

[0045] The settlement compensation layer 4 includes an air pressure compensation section 41 and a hydraulic system compensation section 42. The air pressure compensation section 41 comprises multiple airbags 411 positioned centrally between the transition layer 5 and the base plate 3; a connecting plate 1 412 fixedly connected to the top of the airbags 411 and to the base plate 3; and a connecting plate 2 413 fixedly connected to the bottom of the airbags 411 and to the transition layer 5. The airbags 411 are made of neoprene with a Kevlar fiber reinforcement layer. They are arranged in a honeycomb pattern centrally between the transition layer 5 and the base plate 3, and operate within a pressure range of 0.3-0.5 MPa to ensure stable support and compensation. The top of the airbags 411 is fixedly connected to the bolts 2 33 of the base plate 3 via a connecting plate 1 412 made of 10 mm thick Q355B hot-dip galvanized steel. The bottom of the airbags 411 is anchored to the transition layer 5 via a connecting plate 2 413 made of the same material, creating a reliable force transmission path. The connecting plate 1 412 located in the center is not fixed by the bolt 2 33, and can be fixed by structural adhesive, pre-embedding, etc.

[0046] The honeycomb arrangement optimizes load distribution, making it adaptable to long-term compression and dynamic loads. The hydraulic system compensation unit 42 works in conjunction with the pneumatic compensation unit 41 to further enhance the accuracy and reliability of settlement compensation, ensuring the overall stability and deformation coordination of the foundation structure.

[0047] The hydraulic system's compensation unit 42 consists of hydraulic push rods 421 spaced between multiple airbags 411, and an oil circuit 422 connecting these push rods 421 and running through the transition layer 5 and out through the top of the soil. The push rods 421 have a travel range of ±50 mm and an accuracy of ±0.1 mm. One push rod 421 is positioned between every three airbags 411. The oil circuit 422 is embedded in the drainage layer 52 and connected to an external intelligent pump station, featuring dual closed-loop pressure-displacement control. This composite system, utilizing a honeycomb array of airbags to provide uniform support and coupled with the millimeter-level real-time compensation provided by the hydraulic push rods 421, can dynamically compensate for foundation settlement.

[0048] The settlement compensation layer 4 adopts an air pressure-hydraulic composite compensation mechanism. The air bag structure of the air pressure compensation part 41 cushions the vibration of the building, reduces the transmission of vibration to the soil and delays the occurrence of settlement. At the same time, the hydraulic push rod and intelligent pump station system of the hydraulic system compensation part 42 perform real-time height adjustment after settlement occurs, thereby realizing active buffering of vibration and dynamic compensation of settlement, forming a dual stability control system combining prevention and correction.

[0049] Connecting plate 1 (412) is a regular hexagon, with multiple connecting plates 1 (412) assembled to form a honeycomb structure. Hydraulic push rods (421) are located at the junction of every three connecting plates 1 (412). The lower portion of every three adjacent connecting plates 1 (412) forms a collar (414) that fits over the piston rods of the hydraulic push rods (421). This structure allows each hydraulic push rod (421) to push three connecting plates 1 (412), increasing the area and uniformity of force applied. The collar (414) also provides the hydraulic push rods (421) with a certain degree of shear resistance, thereby improving the structural stability between the concrete slab (31) and the transition layer (5).

[0050] The settlement compensation layer 4 utilizes a modular honeycomb structure. Connecting plates 412 are constructed from regular hexagonal Q355B hot-dip galvanized steel sheets (10 mm thick). Multiple connecting plates 412 are assembled to form a rigid honeycomb grid. A hydraulic push rod 421 is positioned at the junction of every three adjacent connecting plates 412. A collar 414, formed by the bottoms of the three connecting plates, tightly encloses the push rod piston, creating a three-point linkage mechanism. This geometric optimization enables a single hydraulic push rod to synchronously drive the three connecting plates 412 in coordinated motion, effectively increasing the force transmission area and imparting shear resistance to the hydraulic push rod 421 through the restraining effect of the collar 414. The spaced arrangement of the honeycomb array's airbags 411 and the hydraulic push rods 421 creates a rigid-flexible coupling composite compensation system. The airbags 411 provide uniform elastic support (working pressure 0.3-0.5 MPa), while the hydraulic push rods 421, connected via oil circuit 422 to an intelligent pump station, implement dual closed-loop pressure-displacement control, enabling real-time correction of differential settlement.

[0051] Multiple airbags 411 squeeze each other and place the hydraulic push rod 421 in a closed space. This closed space protects the hydraulic push rod 421 and prevents debris or moisture in the soil from invading the hydraulic push rod 421. The settlement compensation layer 4 adopts a highly integrated protection and compensation design. The tightly packed honeycomb arrangement of the airbags 411 forms a self-sealing system. After being pressurized, adjacent airbags 411 expand laterally, generating a contact pressure of 30-50 kPa. This allows the rigid honeycomb grid formed by the hexagonal connecting plates 412 to form a continuous sealing interface with the airbag group. This structural innovation realizes a triple protection mechanism:

[0052] 1. Dynamic sealing protection: The squeezing action between the airbags 411 forms a pressure-tight chamber (sealing pressure > 25kPa) around the hydraulic push rod 421, effectively blocking underground water and soil infiltration;

[0053] 2. Mechanical isolation barrier: The geometric locking structure formed by the collar 414 and the adjacent connecting plate 412 can intercept solid particles with a particle size greater than 0.5 mm;

[0054] 3. Electrochemical protection: The hot-dip galvanized connecting plate 412 and the rubber layer of the airbag 411 form a composite anti-corrosion system to increase the service life of the key parts of the hydraulic push rod 421.

[0055] From bottom to top, the transition layer 5 comprises, in order, an anti-chemical corrosion layer 51, which is applied to the bottom of the foundation pit 2 to isolate the soil; a drainage layer 52 formed by piled gravel; and an anti-puncture layer 53, which isolates the gravel and allows drainage through surface openings. The anti-chemical corrosion layer 51 is constructed from 400 grams per square meter polyester filament geotextile with a 2 mm thick high-density polyethylene film, resistant to pH values ​​of 3-11, and welded using hot-melt welding. The drainage layer 52 is constructed from graded gravel with a particle size of 5-20 mm, 150 mm thick, and has an internal high-density polyethylene drainage pipe. The anti-puncture layer 53 is constructed from 10 mm thick perforated steel plate with a 5 mm hole diameter and a 20 mm hole spacing. It is coated with a polyurethane anti-corrosion layer and securely connected to the connecting plate 2 413 by welding.

[0056] The prefabricated foundation of the booster station adopts an intelligent dynamic compensation mechanism, and its workflow can be divided into four control stages:

[0057] 1. Preload balance stage:

[0058] In the initial state, the airbags 411 group are pre-charged to 0.3 MPa (± 0.02 MPa) to form a basic reaction force;

[0059] The hydraulic push rod 421 remains in the retracted state (stroke returns to zero), and the displacement sensor monitors the levelness of the foundation bottom plate 3 in real time;

[0060] The system uploads initial parameters to the cloud monitoring platform through the 5G module.

[0061] 2. Settlement perception stage:

[0062] When the foundation settlement reaches the set threshold (usually ≥3 mm), the transition layer 5 sinks along with the soil;

[0063] The airbag 411 is compressed, and the internal air pressure rises nonlinearly to 0.35 MPa (sensor sampling frequency 100 Hz), triggering the hydraulic system preparation command.

[0064] 3. Active compensation stage:

[0065] Multiple hydraulic push rods 421 are synchronously and gradedly lifted, and the honeycomb structure linkage mechanism ensures that the three connecting plates 412 are lifted synchronously, eliminating local stress concentration.

[0066] 4. System reset phase

[0067] The basic bottom plate 3 is checked to be restored to the design elevation (±0.3mm), and the hydraulic system is self-locking; the airbag 411 restores its initial volume, and the air pressure drops back to the stable range of 0.3MPa; at this time, the hydraulic push rod 421 and the airbag 411 cooperate to provide support.

[0068] The embodiment of the present invention discloses a method for connecting a prefabricated foundation of a booster station, comprising the following steps:

[0069] S1, soil foundation 1 construction:

[0070] Drive reinforcement piles 11 into the soil according to design requirements to form a closed foundation pit 2;

[0071] During construction, the top elevation of the reinforcement piles 11 is strictly controlled to ensure that all pile tops are level;

[0072] S2, transition layer 5 laying:

[0073] The following layers are laid in order at the bottom of the foundation pit 2: the bottom layer, the anti-chemical corrosion layer 51; the middle layer, the drainage layer 52 of the pre-buried oil line 422; the upper layer, the anti-puncture layer 53;

[0074] S3, installation of settlement compensation layer 4:

[0075] Arrange multiple air bags 411 in a honeycomb pattern on the anti-puncture layer 53;

[0076] Fix the second connecting plate 413 and the anti-puncture layer 53 at the bottom of the airbag 411 by welding;

[0077] Install a hydraulic push rod 421 at the intersection of every three connecting plates 412;

[0078] The piston rod of the hydraulic push rod 421 is constrained by a collar 414;

[0079] The hydraulic push rod 421 connects the oil circuit 422 pre-buried in the drainage layer 52 to the external intelligent pump station;

[0080] S4, positioning of foundation plate 3:

[0081] Hoisting the precast concrete slab 31 to above the settlement compensation layer 4;

[0082] Use bolt 2 33 to fasten the concrete slab 31 to the connecting plate 1 412;

[0083] The exposed portion of bolt 1 32 is reserved for subsequent upper building installation.

[0084] It should be noted that in the description of the present invention, terms such as "center, up, down, left, right, vertical, horizontal, inside, and outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for ease of description and are not intended to indicate or imply that the device or component described must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first, second, and third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0085] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "installed, connected, and connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0086] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus.

[0087] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A prefabricated foundation for a booster station, characterized in that: include: The soil foundation (1) is set inside the soil to reinforce the soil and the foundation pit (2). The foundation bottom plate (3) is arranged inside the foundation pit (2) and is used to connect the building. A settlement compensation layer (4) is provided between the foundation bottom plate (3) and the soil foundation (1) to compensate for the settlement of the foundation bottom plate (3), and A transition layer (5) is provided between the soil foundation (1) and the settlement compensation layer (4) to protect the settlement compensation layer (4); The settlement compensation layer (4) comprises an air pressure compensation part (41) and a hydraulic system compensation part (42). The settlement compensation layer (4) is designed to buffer vibrations through the air pressure compensation part (41) and to adjust settlement through the hydraulic system compensation part (42).

2. The prefabricated foundation of the booster station according to claim 1, characterized in that: The soil foundation (1) comprises reinforcement piles (11) buried inside the soil, and the reinforcement piles (11) enclose a foundation pit (2).

3. The prefabricated foundation of the booster station according to claim 1, characterized in that: The basic base plate (3) comprises: Concrete slab (31), Bolt 1 (32) is pre-buried in the concrete slab (31) for connecting the building, and bolt 2 (33) is pre-buried in the concrete slab (31) for connecting the settlement compensation layer (4).

4. The prefabricated foundation of the booster station according to claim 1, characterized in that: The air pressure compensation unit (41) comprises: The airbag (411) is provided in plurality and is arranged at the center between the transition layer (5) and the base plate (3). A connecting plate (412) is fixedly connected to the top of the air bag (411) and fixedly connected to the base plate (3), and The second connecting plate (413) is fixedly connected to the bottom of the air bag (411) and fixedly connected to the transition layer (5).

5. The prefabricated foundation of the booster station according to claim 4, characterized in that: The hydraulic system compensating unit (42) comprises: A hydraulic push rod (421) is spaced between the plurality of air bags (411), and the hydraulic cylinder is fixedly connected to the transition layer (5), and The oil circuit (422) is connected to the hydraulic push rod (421), is arranged inside the transition layer (5) and passes through the top of the soil.

6. The prefabricated foundation of the booster station according to claim 5, characterized in that: The connecting plate 1 (412) is in the shape of a regular hexagon, and a plurality of connecting plates 1 (412) are assembled to form a honeycomb structure; The hydraulic push rod (421) is arranged at the connection of every three connecting plates (412), and the lower parts of every three adjacent connecting plates (412) are enclosed to form a collar (414) which is sleeved on the outside of the piston rod of the hydraulic push rod (421).

7. The prefabricated foundation of the booster station according to claim 6, characterized in that: The plurality of air bags (411) press each other and the hydraulic push rod (421) so that the hydraulic push rod (421) is placed in a closed space.

8. The prefabricated foundation of the booster station according to claim 1, characterized in that: The transition layer (5) comprises, from bottom to top,: The anti-chemical corrosion layer (51) is attached to the bottom of the foundation pit (2) to isolate the soil. a drainage layer (52) formed by stacking crushed stones, and The anti-puncture layer (53) isolates the gravel and allows drainage through the surface openings.

9. The prefabricated foundation of the booster station according to claim 8, characterized in that: The chemical corrosion resistance layer (51) is an acid and alkali resistant geotextile, and the puncture resistance layer (53) is a perforated steel plate.

10. The method for connecting the prefabricated foundation of a booster station according to any one of claims 1 to 9, comprising the following steps: S1, soil foundation (1) construction: Driving reinforcement piles (11) into the soil to enclose and form a foundation pit (2), and ensuring that the top elevations of the reinforcement piles (11) are consistent; S2, transition layer (5) laying: An anti-chemical corrosion layer (51), a drainage layer (52) and an anti-puncture layer (53) are laid in sequence at the bottom of the foundation pit (2); S3, installation of settlement compensation layer (4): The puncture-proof layer (53) is welded and fixed to the second connecting plate (413) so that a plurality of airbags (411) are arranged in a honeycomb pattern on the puncture-proof layer (53), and the bottom of the airbags (411) is fixed by the second connecting plate (413); a hydraulic push rod (421) is installed at the connection of every three connecting plates (412), the piston rod is constrained by a collar (414), and an oil circuit (422) is pre-buried in the drainage layer (52) and externally connected to an intelligent pump station; S4, positioning of the foundation plate (3): The concrete slab (31) is hoisted to the top of the settlement compensation layer (4), and is fastened to the connecting plate (412) by bolt (2) (33), with bolt (1) (32) exposed for installation of the upper building.

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