An airport side slope retaining wall and box transformer base integrated structure

Abstract

The utility model discloses an airport side slope retaining wall and box transformer foundation integration structure relates to the field of side slope, including the box transformer foundation and retaining wall of being arranged in the airport side slope, and the box transformer foundation is the box type structure, and the side of box transformer foundation is connected retaining wall bottom end side through the connecting platform, and the retaining wall is equipped with the water interception ditch away from the side of connecting platform, and the water interception ditch extends along the side slope transversely to make both ends open extension to the transverse range outside of box transformer foundation, and the top of box transformer foundation is equipped with the box transformer foundation top board, and the hole is opened in box transformer foundation top board, and the crossbeam of bearing box transformer is equipped between the hole, and the cushion layer is equipped respectively below box transformer foundation and connecting platform, the connecting platform is directly connected with the box transformer foundation and retaining wall, makes two from independent arrangement to integral, need not the necessary safety construction distance of reserving in traditional separate type design, directly saved the space of interval area between two structures on the side slope, promotes the space utilization of side slope.

Description

Technical Field

[0001] This utility model relates to the field of slope protection, and in particular to an integrated structure of airport slope retaining wall and transformer substation foundation. Background Technology

[0002] The airport's photovoltaic transformer substation is located at the top of the airport slope. The design of the substation foundation must consider the slope stability, the foundation's resistance to overturning, and the requirement that the substation does not exceed the clearance limit. Construction of the substation foundation should minimize large-scale excavation of the airport slope, with minimal excavation and completion within the flight take-off and landing window, requiring a rapid construction speed.

[0003] Traditional separate design of retaining wall and transformer substation foundation requires reserving space for both retaining wall and transformer substation foundation on the slope. In order to facilitate separate construction, the retaining wall and foundation must have a certain safety distance, resulting in significant space waste. In addition, the construction process involves building the retaining wall first and then the foundation, and the expansion joint between the two must be treated. This results in many procedures, long construction period, high connection costs, and high maintenance costs in the later stages. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing an integrated structure for airport slope retaining walls and transformer substation foundations. A connecting platform directly connects the transformer substation foundation and the retaining wall, transforming them from independent structures into a unified whole. This eliminates the need for the necessary safety construction distance required in traditional separate designs, directly saving space in the interval area between the two structures on the slope and improving slope space utilization. A crossbeam is installed on the top plate of the transformer substation foundation, enabling it to not only bear the load transfer function but also directly serve as the installation carrier for the transformer substation, eliminating the need for an additional independent load-bearing structure and avoiding redundant space occupation.

[0005] To achieve the above objectives, the following technical solution is adopted: An integrated structure of airport slope retaining wall and transformer substation foundation includes a transformer substation foundation and a retaining wall arranged on the airport slope. The transformer substation foundation is a box-shaped structure. The side of the transformer substation foundation is connected to the bottom side of the retaining wall through a connecting platform. A drainage ditch is provided on the side of the retaining wall away from the connecting platform. The drainage ditch extends laterally along the slope so that its two ends extend beyond the lateral range of the transformer substation foundation. A transformer substation foundation top plate is provided on the top of the transformer substation foundation. Openings are opened on the transformer substation foundation top plate. A crossbeam supporting the transformer is provided between the openings. A pad layer is provided under the transformer substation foundation and the connecting platform respectively.

[0006] Furthermore, one side of the intercepting ditch has the top of the retaining wall as its sidewall, and the top of the other sidewall is an inclined surface, which is distributed coplanarly with the slope to guide the slope water flow into the intercepting ditch.

[0007] Furthermore, the intercepting ditch extends laterally along the slope and then bends and extends obliquely downward along the slope, so that the opening of the intercepting ditch faces obliquely downward along the slope, and appears as a concave shape when viewed from above.

[0008] Furthermore, the transformer substation foundation extends laterally along the slope to form a transformer substation foundation platform, which is connected to the connecting platform.

[0009] Furthermore, one end of the top plate of the transformer substation foundation forms an entrance well that connects to the interior of the transformer substation foundation. The entrance well is fitted with a manhole cover, and a ladder is installed on the inner wall of the transformer substation foundation below the entrance well.

[0010] Furthermore, a guardrail is installed along one edge of the entrance well corresponding to the transformer substation foundation, and a guardrail is installed along the edge of the transformer substation foundation platform.

[0011] Furthermore, along the slope direction, the transformer substation foundation is connected to a transformer substation oil tank on the side away from the connecting platform.

[0012] Furthermore, the opening at the top of the transformer substation oil tank is flush with the top plate of the transformer substation foundation, and the transformer substation oil tank is suspended above the slope.

[0013] Furthermore, a connector is pre-embedded at the top of the transformer substation foundation to facilitate installation and fixation at the bottom of the transformer substation.

[0014] Furthermore, the top of the transformer substation foundation is provided with multiple crossbeams, which connect the side walls on both sides of the transformer substation foundation.

[0015] Compared with the prior art, the beneficial effects of this utility model are: To address the current issues of irrational distribution of retaining walls and transformer substation foundations on airport slopes, resulting in large space occupation and inconvenient construction, a connecting platform is configured to directly connect the transformer substation foundation and the retaining wall. This transforms the two from independent arrangements into a unified whole, eliminating the need for the necessary safety construction distance required in traditional separate designs. This directly saves space in the interval area between the two structures on the slope, improving the utilization rate of slope space. The top beam support of the transformer substation foundation not only enables the foundation to bear the load transfer function but also directly serves as the installation carrier for the transformer substation, eliminating the need for an additional independent load-bearing structure for the transformer substation and avoiding redundant space occupation. The intercepting ditch is installed along the side of the retaining wall, extending laterally along the slope and extending beyond the foundation at both ends. This achieves slope drainage and prevents rainwater erosion of the foundation while eliminating the need for a separate drainage channel, thus optimizing the spatial layout.

[0016] The sloping sidewalls of the intercepting ditch, which are coplanar with the slope, guide the water flow into the ditch. The U-shaped design keeps the drainage direction away from the main foundation, preventing rainwater from seeping into the soil below the foundation and causing softening and instability. At the same time, the intercepting ditch uses retaining walls as its sidewalls, and its structural strength is consistent with that of the retaining walls. It can resist water erosion for a long time, reduce the maintenance needs caused by damage to the drainage ditch, and indirectly reduce the operation and maintenance costs of the foundation caused by rainwater erosion.

[0017] The entrance well, along with its cover, protects the internal equipment of the transformer substation (such as cables and terminals) from rainwater and debris, reducing the frequency of maintenance. The ladder facilitates access for maintenance personnel to the foundation for inspection, eliminating the need for temporary climbing structures and reducing the difficulty and cost of maintenance operations. Guardrails installed on the foundation platform and the edge of the entrance well prevent personnel from falling, avoiding additional maintenance expenses due to safety accidents, while also protecting the foundation's edge structure from collision damage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the integrated structure of airport slope retaining wall and transformer substation foundation in an embodiment of this utility model.

[0019] Figure 2 for Figure 1 A schematic diagram of the cross-section at point AA.

[0020] Figure 3 for Figure 1 A schematic diagram of the cross-section at point BB.

[0021] Numbering explanations (in order of first appearance): 1. Guardrail; 2. Ladder; 3. Entrance well; 4. Transformer foundation; 5. Opening; 6. Crossbeam; 7. Transformer oil tank; 8. Transformer foundation platform; 9. Interception ditch; 10. Retaining wall; 11. Connecting platform; 12. Subbase; 13. Transformer; 14. Slope. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0023] The traditional separate design of retaining wall 10 and transformer substation foundation 4 requires reserving independent spaces for each on the airport slope 14, and a certain safety distance must be maintained for construction convenience, resulting in excessive occupation of the limited space on the slope 14. Construction must follow the sequence of retaining wall 10 first, then foundation, with gaps in the process connection, and additional treatment is required for the expansion joint between the two. The expansion joint of the separate structure is affected by factors such as water and soil pressure and temperature changes on the slope 14 for a long time, which can easily lead to leakage, cracking and other problems, requiring frequent maintenance. In this embodiment, an integrated structure of airport slope retaining wall and transformer substation foundation is provided, with a connecting platform 11 to directly connect transformer substation foundation 4 and retaining wall 10, so that the two are transformed from independent arrangement into a whole, eliminating the need to reserve the necessary safety construction distance in the traditional separate design, directly saving the space in the interval area between the two structures on the slope 14, and improving the space utilization rate of the slope 14.

[0024] Specifically, such as Figures 1-3As shown, an integrated structure is constructed that combines the protective function of retaining wall 10 and the load-bearing function of transformer substation 13. Transformer substation 13 refers to a box-type transformer. The integrated structure of airport slope retaining wall and transformer substation foundation mainly includes transformer substation foundation 4 and retaining wall 10. Transformer substation foundation 4 is a box-type structure with an internal space. The side of transformer substation foundation 4 is connected to the bottom side of retaining wall 10 through connecting platform 11. A drainage ditch 9 is provided on the side of retaining wall 10 away from connecting platform 11. The drainage ditch 9 extends laterally along slope 14 so that its two ends extend beyond the lateral range of transformer substation foundation 4. The top of transformer substation foundation 4 is a transformer substation foundation top plate with openings 5. A crossbeam 6 for supporting transformer substation 13 is provided between the openings 5. A pad layer 12 is provided under transformer substation foundation 4 and connecting platform 11 respectively.

[0025] A connecting platform 11 is set up to directly connect the side of the transformer substation foundation 4 to the bottom side of the retaining wall 10, so that the retaining wall 10 and the transformer substation foundation 4 form an integral load-bearing structure, replacing the independent layout mode of the traditional separate design, eliminating the safety distance between the two, and realizing spatial integration. The transformer substation foundation 4 is designed as a box-shaped structure with an opening 5 at the top. A crossbeam 6 is set at the top plate of the transformer substation foundation. The crossbeam 6 is used to support the transformer substation 13 equipment. There is no need to build a separate support platform for transformer substation 13. The equipment can be installed using the space of the foundation itself, which further saves space. The drainage ditch 9 not only realizes the drainage function of the slope 14, but also avoids the drainage structure occupying additional space. A cushion layer 12 is set under the transformer substation foundation 4 and the connecting platform 11 respectively. The cushion layer 12 protects the foundation soil, prevents disturbance, provides a flat and solid construction working surface, improves the stress state of the foundation, realizes stress diffusion, prevents steel corrosion, and ensures the long-term reliability of the structure.

[0026] The connecting platform 11 directly connects the transformer substation foundation 4 and the retaining wall 10, transforming them from independent arrangements into a coexisting whole. This eliminates the need for the necessary safety construction distance required in traditional separate designs, directly saving space in the interval area between the two structures on the slope 14 and improving the space utilization of the slope 14. The top beam 6 of the transformer substation foundation 4 not only bears the load transfer function of the foundation but also directly serves as the installation carrier for the transformer substation 13, eliminating the need for an additional independent load-bearing structure for the transformer substation 13 and avoiding redundant space occupation. The intercepting ditch 9 is set along the side of the retaining wall 10, extending laterally along the slope 14 and extending beyond the foundation at both ends. While achieving drainage of the slope 14 and preventing rainwater erosion of the foundation, it eliminates the need for a separate drainage channel space, optimizing the spatial layout.

[0027] The integrated structure allows for the simultaneous construction of retaining wall 10, connecting platform 11, and transformer substation foundation 4 (such as simultaneous reinforcement binding and concrete pouring), replacing the traditional step-by-step construction mode of first constructing retaining wall 10 and then foundation, reducing the interval between processes and significantly shortening the overall construction period. Since retaining wall 10 and transformer substation foundation 4 are integrated through connecting platform 11, there is no need for the expansion joint required in traditional separate structures, eliminating the need for expansion joint design and construction, reducing labor and material costs, and simplifying the construction process. The integrated structure eliminates the expansion joints of traditional separate designs, avoiding leakage and cracking problems caused by long-term water and soil pressure and temperature changes, and reducing the frequency of maintenance due to expansion joint damage. The pad layer 12 under the transformer substation foundation 4 and the connecting platform 11 can evenly distribute the load of the upper structure, such as the water and soil pressure of the retaining wall 10 and the weight of the transformer substation 13, so as to avoid excessive local stress on the structure, which may lead to settlement or cracking and reduce the maintenance needs of the main structure. The intercepting ditch 9 on the side of the retaining wall 10 can drain rainwater from the slope 14 in a timely manner, preventing rainwater from seeping into the soil below the foundation, avoiding soil softening that could lead to foundation instability, reducing maintenance costs caused by foundation settlement, and extending the service life of the overall structure.

[0028] The integrated design eliminates the safety distance between the retaining wall 10 and the foundation, integrates the load-bearing and drainage functions of the transformer substation 13, and improves the space utilization of the airport slope 14, especially suitable for the limited space and dense functions of the airport slope 14. Simultaneous construction replaces step-by-step construction, eliminates the expansion joint process, shortens the overall construction period, reduces construction labor and material costs, and improves construction economy. The expansion joint-free design reduces leakage maintenance, and the subbase 12 and intercepting ditch 9 ensure structural stability, reducing the frequency of later maintenance of the integrated structure, significantly reducing operation and maintenance costs, and extending the service life of the structure. The retaining wall 10 and the foundation form an integrated force-bearing system, which, together with the load-dispersing effect of the subbase 12, can better resist the water and soil pressure of the slope 14 and the equipment load of the transformer substation 13. The structure's resistance to settlement and cracking is significantly improved, ensuring the safe and stable operation of the airport transformer substation 13 equipment.

[0029] like Figures 1-3 As shown, the slope 14 of the intercepting ditch 9 is integrated with the top of the retaining wall 10 on one side, and the top of the other side wall is designed as an inclined surface that is coplanar with the slope 14. This allows the intercepting ditch 9 to be completely attached to the retaining wall 10 and the slope 14, without the need to open up an additional independent drainage space. At the same time, the inclined surface being coplanar with the slope 14 can naturally guide the water flow on the surface of the slope 14 into the intercepting ditch 9, avoiding the space occupation caused by the accumulation of water on the surface of the slope 14.

[0030] In addition, the intercepting ditch 9 extends laterally along the slope 14, then bends and extends obliquely downwards, forming a concave shape when viewed from above, with its opening facing obliquely downwards. This not only extends the drainage path to adapt to the terrain of the slope 14, but also avoids the drainage structure from extending excessively to the outside of the slope 14 and occupying extra space, thus achieving a balance between drainage function and space compactness.

[0031] The transformer substation foundation platform 8 and the oil tank are spatially integrated. The transformer substation foundation 4 extends laterally along the slope 14 to form the transformer substation foundation platform 8, which is connected to the connecting platform 11. The transformer substation foundation platform 8 not only expands the bearing area of ​​the transformer substation foundation 4, providing more stable support for the installation of the transformer substation 13 equipment, but also avoids the space waste caused by building a separate platform by extending and integrating it to replace the traditional independent foundation extension structure. At the same time, the transformer substation foundation 4 is connected to the suspended transformer substation oil tank 7 on the side away from the connecting platform 11. The top of the transformer substation oil tank 7 is flush with the top plate of the transformer substation foundation and is suspended above the slope 14. The suspended design utilizes the vertical space above the slope 14, eliminating the need to excavate a separate oil tank foundation pit in the soil of the slope 14. This saves the soil space of the slope 14 and avoids the waste of the space between the oil tank and the foundation by directly connecting it to the foundation, realizing the spatial symbiosis of the foundation and the oil tank.

[0032] The intercepting ditch 9 and retaining wall 10 are constructed simultaneously. The intercepting ditch 9 uses the top of the retaining wall 10 as its sidewall, and its structure can be completed simultaneously with the pouring process of the retaining wall 10. If the intercepting ditch 9 is reserved during the pouring of the retaining wall 10, or is poured integrally with the sidewall of the retaining wall 10, there is no need to excavate and construct the intercepting ditch 9 separately after the construction of the retaining wall 10, reducing the construction procedures for independent drainage structures. At the same time, the bending and oblique extension design of the U-shaped intercepting ditch 9 can be adjusted synchronously during the construction of the integrated structure according to the topography of the slope 14, without the need for secondary modifications later, further simplifying the construction process.

[0033] An opening is provided at one end of the top slab of the transformer substation foundation, forming an entrance well 3 that connects to the interior of the transformer substation foundation 4. The entrance well 3 is fitted with a manhole cover. A ladder 2 is installed on the inner wall of the transformer substation foundation 4 below the entrance well 3. A guardrail 1 is installed along the edge of the transformer substation foundation 4 corresponding to the entrance well 3, and a guardrail 1 is also installed along the edge of the transformer substation foundation platform 8. The entrance well 3, ladder 2, and guardrail 1 can be constructed simultaneously during the pouring of the transformer substation foundation 4. The ladder 2 can be pre-tied and fixed to the foundation reinforcement before being poured together. The guardrail 1 can be quickly installed after the foundation is formed using pre-embedded connectors, avoiding the extra steps of excavating the entrance and installing the ladder 2 separately after the foundation is formed in traditional separate construction, thus shortening the construction cycle. In addition, the pre-embedded connectors at the top of the transformer substation foundation 4 can be directly installed and fixed to the bottom of the transformer substation 13 without the need for subsequent drilling, welding, and other fixing processes, improving the installation efficiency of the transformer substation 13.

[0034] The drainage and foundation protection of the intercepting ditch 9: The inclined sidewall of the intercepting ditch 9, which is coplanar with the slope 14, guides the water flow to flow in efficiently. The concave design makes the drainage direction away from the main body of the foundation, preventing rainwater from seeping into the soil below the foundation and causing softening and instability. At the same time, the intercepting ditch 9 uses the retaining wall 10 as its sidewall, and its structural strength is consistent with that of the retaining wall 10. It can resist water erosion for a long time, reduce the maintenance needs caused by damage to the drainage ditch, and indirectly reduce the operation and maintenance costs of the foundation caused by rainwater erosion.

[0035] The ease of operation and maintenance of the entrance well 3, ladder 2, and guardrail 1: The entrance well 3, together with the well cover, can protect the internal equipment (such as cables and terminals) of the transformer substation foundation 4 from rainwater and debris intrusion, reducing the frequency of maintenance of internal equipment; the ladder 2 facilitates the entry of operation and maintenance personnel into the foundation for inspection and maintenance, eliminating the need to build additional temporary climbing facilities, reducing the difficulty and cost of operation and maintenance; the guardrail 1 is installed on the edge of the foundation platform and the entrance well 3, which can prevent personnel from falling, avoid additional operation and maintenance expenses caused by safety accidents, and protect the edge structure of the foundation from collision damage.

[0036] The oil tank 7 of the transformer substation is suspended above the slope 14 to avoid direct contact with the soil of the slope 14, thereby reducing the squeezing and deformation of the oil tank due to soil settlement and reducing the risk of oil tank leakage. At the same time, the top opening of the oil tank 7 is flush with the top plate of the transformer substation foundation, which makes it convenient for maintenance personnel to check the condition of the oil tank and the foundation at the same time. There is no need to open a separate oil tank maintenance channel, which improves maintenance efficiency and reduces maintenance costs.

[0037] The design of the intercepting ditch 9 being coplanar with the slope 14, the oil tank being suspended, and the foundation platform being extended improves the space utilization of the slope 14 compared to the traditional separate structure, adapting to the limited space and dense functions required by the airport slope 14. The coordination of synchronous construction units and simplified installation units shortens the overall construction period compared to the traditional structure and reduces material waste caused by process connections. Multiple crossbeams 6 enhance the foundation bearing stability, the suspended oil tank reduces the risk of leakage, and the U-shaped intercepting ditch 9 improves drainage efficiency. This integrated structure not only adapts to the terrain of the airport slope 14 but also resists complex working conditions such as rainwater erosion and soil settlement, ensuring the long-term safe operation of the transformer substation 13.

[0038] The specific embodiments of the utility model have been described in detail above, but they are only examples, and the utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications or substitutions to the utility model are also within the scope of the utility model. Therefore, all equivalent transformations, modifications, and improvements made without departing from the spirit and principles of the utility model should be covered within the scope of the utility model.

Claims

1. An integrated structure for airport slope retaining wall and transformer substation foundation, characterized in that, The system includes a transformer substation foundation and a retaining wall located on the airport slope. The transformer substation foundation is a box-shaped structure. The side of the transformer substation foundation is connected to the bottom side of the retaining wall via a connecting platform. A drainage ditch is provided on the side of the retaining wall away from the connecting platform. The drainage ditch extends laterally along the slope, with its two ends extending beyond the lateral range of the transformer substation foundation. A transformer substation foundation top plate is provided on the top of the transformer substation foundation. Openings are provided on the transformer substation foundation top plate, and crossbeams supporting the transformer are provided between the openings. A pad layer is provided under the transformer substation foundation and the connecting platform.

2. The integrated structure of airport slope retaining wall and transformer substation foundation as described in claim 1, characterized in that, The intercepting ditch has the top of the retaining wall as its sidewall on one side, and the top of the other sidewall is an inclined surface, which is distributed on the same plane as the slope, so as to guide the slope water flow into the intercepting ditch.

3. The integrated structure of airport slope retaining wall and transformer substation foundation as described in claim 1 or 2, characterized in that, The intercepting ditch extends laterally along the slope, then bends and extends diagonally downwards along the slope, so that the opening of the intercepting ditch faces diagonally downwards along the slope, and appears as a concave shape when viewed from above.

4. The integrated structure of airport slope retaining wall and transformer substation foundation as described in claim 1, characterized in that, The transformer substation foundation extends laterally along the slope to form a transformer substation foundation platform, which is connected to the connecting platform.

5. The integrated structure of airport slope retaining wall and transformer substation foundation as described in claim 4, characterized in that, One end of the top plate of the transformer substation foundation forms an entrance well that connects to the interior of the transformer substation foundation. The entrance well is fitted with a manhole cover, and a ladder is installed on the inner wall of the transformer substation foundation below the entrance well.

6. The integrated structure of airport slope retaining wall and transformer substation foundation as described in claim 5, characterized in that, A guardrail is installed along one edge of the entrance well corresponding to the transformer substation foundation, and a guardrail is installed along the edge of the transformer substation foundation platform.

7. The integrated structure of airport slope retaining wall and transformer substation foundation as described in claim 1, characterized in that, Along the slope direction, the transformer substation foundation is connected to the transformer substation oil tank on the side away from the connecting platform.

8. The integrated structure of airport slope retaining wall and transformer substation foundation as described in claim 7, characterized in that, The opening at the top of the transformer substation oil tank is flush with the top slab of the transformer substation foundation, and the oil tank is suspended above the slope.

9. The integrated structure of airport slope retaining wall and transformer substation foundation as described in claim 1, characterized in that, The top of the transformer substation foundation has pre-embedded connectors to facilitate installation and fixation at the bottom of the transformer substation.

10. The integrated structure of airport slope retaining wall and transformer substation foundation as described in claim 1 or 9, characterized in that, The top of the transformer substation foundation is equipped with multiple crossbeams, which connect the side walls on both sides of the foundation.

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