Fabricated transformer substation framework foundation for soft soil area

Abstract

The utility model provides an assembly type transformer substation framework foundation for a soft soil area, which comprises a foundation plate, a supporting assembly arranged on the lower end face of the foundation plate, an anti-sedimentation assembly arranged at the bottom of the supporting assembly, and a first side baffle and a second side baffle are fixedly connected, so that the supporting area of an embedded base can be further increased; the embedded base with the upper half portion inclining outwards can disperse downward acting force from the foundation plate and prevent the foundation plate from further descending, the multiple insertion rods with the length being 1.5-2 m are fixedly connected, the bearing capacity of the embedded base can be enhanced, sedimentation of the embedded base is reduced, the perpendicularity and stability of the embedded base are kept, and the embedded base is suitable for being used in the field of building construction. And the communicating cavity and the hollow cavity which communicate with each other are convenient for the soil curing agent to harden the soft soil at the lower ends of the insertion rods, and meanwhile, the plurality of overflow through holes are convenient for the soil curing agent to harden the soft soil around the plurality of insertion rods, so that the anti-settling capacity of the embedded base is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated substation structure foundations, in particular to a prefabricated substation structure foundation for soft soil areas. Background Technique

[0002] ‌The prefabricated substation‌ is a new type of substation construction method, which combines the technologies and principles of prefabricated buildings. Through factory prefabrication and on-site rapid assembly, the efficient construction and operation of the substation are realized. When assembling the prefabricated substation, the structure foundation is an important part for supporting the prefabricated substation.

[0003] A prefabricated substation provided by the publication number "CN218300736U" makes the substation convenient for overhauling and replacing each substation equipment by setting an assemblable assembly unit, greatly reducing the operation cost. Moreover, the prefabricated design enables multiple substation equipment to be in the same space, facilitating centralized data monitoring, centralized heat dissipation and dust removal treatment, and reducing energy consumption, solving the problems of inconvenient overhaul and replacement of substation equipment in the existing substation and relatively high operation cost.

[0004] However, the above technical solutions and the existing technologies have the following defects:

[0005] Although the foundation in the prefabricated substation can support and fix the assembly unit, since the structure of the foundation is plate-shaped and there is no corresponding anti-settlement structure, the foundation can only be used on hard ground. Once it is used in soft soil areas, it is very easy to sink. And some of the structure foundations used in soft soil areas in the existing technologies have weak anti-settlement ability and are still prone to sink downward after being used for a period of time, with poor practicability. Content of the Utility Model

[0006] The purpose of the utility model is to provide a prefabricated substation structure foundation for soft soil areas to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A prefabricated substation structure foundation for soft soil areas includes a support bottom plate, an installation bottom frame, a base plate and a support seat. On the upper end surface of the base plate, support seats are symmetrically and fixedly connected to the left and right sides. The support seats are provided with the support bottom plate on the upper end. The installation bottom frame is fixedly connected to the upper end surface of the support bottom plate. A support component is arranged on the lower end surface of the base plate, and the support component can support the base plate in soft soil areas. An anti-settlement component is arranged at the bottom of the support component, and the anti-settlement component can improve the anti-settlement ability of the support component.

[0009] Preferably, the support assembly includes a first side baffle, an embedded base, and a second side baffle. The lower end face of the base plate is fixedly connected to the embedded base. The first side baffles are symmetrically and fixedly connected to the left and right end faces of the embedded base, and the second side baffles are symmetrically and fixedly connected to the front and rear end faces of the embedded base.

[0010] Preferably, the anti-settlement assembly includes insertion rods, overflow through holes, and communication cavities. A plurality of insertion rods are fixedly connected to the lower end face of the embedded base. A plurality of overflow through holes are formed in the circumferential side surface of the insertion rods, and a plurality of communication cavities are formed at the bottom of the embedded base.

[0011] Preferably, a hollow cavity is formed inside the insertion rod. The length of the insertion rod is 1.5 - 2 meters, and the communication cavity is communicated with the hollow cavity.

[0012] Preferably, a circular through cavity is formed at the middle position inside the base plate, and the inner diameter of the circular through cavity is 80 cm. A manhole cover is installed on the upper end face of the base plate, and the manhole cover is a detachable structure.

[0013] Preferably, first storage cavities are symmetrically formed on the left and right sides inside the base plate. First extension plates are inserted into the first storage cavities. First fixing screws are symmetrically installed on the left and right sides of the upper end face of the base plate. Second storage cavities are symmetrically formed on the front and rear sides inside the base plate. Second extension plates are inserted into the second storage cavities. Second fixing screws are symmetrically installed on the front and rear sides of the upper end face of the base plate.

[0014] Preferably, the upper half of the embedded base is inclined outward. The embedded base is a hollow structure, and an installation cavity is formed on the upper end face of the installation chassis.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By fixedly connecting the first side baffle and the second side baffle, the support area of the embedded base can be further increased. Moreover, the embedded base with the upper half inclined outward can also disperse the downward acting force from the base plate and prevent it from further descending. The first extension plate and the second extension plate extending outward can further increase the lateral and longitudinal support areas of the base plate, so that the anti-settlement ability of the embedded base is better during use in soft soil areas;

[0017] 2. By fixedly connecting multiple insertion rods with a length of 1.5 - 2 meters, the bearing capacity of the embedded base can be enhanced, the settlement of the embedded base can be reduced, the verticality and stability of the embedded base can be maintained, and the connected communication cavity and the hollow cavity facilitate the staff to fill an appropriate amount of soil hardening agent into the insertion rods, so that the soil hardening agent hardens the soft soil at the lower end of the insertion rods. At the same time, a plurality of overflow through holes will export a part of the soil hardening agent in the hollow cavity, so that the soil hardening agent hardens the soft soil around the multiple insertion rods, thereby further improving the anti-settlement ability of the embedded base. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 is a right view of the support assembly and the anti-settlement assembly in the present invention;

[0020] Figure 3 is a front sectional view of the support assembly and the anti-settlement assembly in the present invention;

[0021] Figure 4 is a partial structure diagram of the support assembly and the anti-settlement assembly in the present invention;

[0022] Figure 5 is a structure diagram of the base plate in the present invention.

[0023] In the figure: 1. Support bottom plate; 2. Installation chassis; 21. Installation cavity; 3. Base plate; 4. Support assembly; 41. First extension plate; 42. First fixing screw; 43. First side baffle; 44. Embedded base; 45. Second side baffle; 46. Second extension plate; 47. Second fixing screw; 48. First storage cavity; 49. Second storage cavity; 5. Anti-settlement assembly; 51. Insertion rod; 52. Overflow through hole; 53. Hollow cavity; 54. Communication cavity; 55. Circular through cavity; 56. Manhole cover; 6. Support seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5 , the present invention provides a technical solution:

[0026] Embodiment 1:

[0027] The assembled substation structure foundation for soft soil areas includes a support bottom plate 1, an installation chassis 2, a base plate 3, and a support seat 6. On the upper end surface of the base plate 3, support seats 6 are symmetrically and fixedly connected on the left and right sides. The support seat 6 and the base plate 3 are of an integral structure. The support seat 6 can support and elevate the support bottom plate 1. The support bottom plate 1 is installed on the upper end of the support seat 6. The support bottom plate 1 is a detachable structure and can support the installation chassis 2. The upper end surface of the support bottom plate 1 is fixedly connected with the installation chassis 2. The installation chassis 2 and the support bottom plate 1 are connected by welding. An installation cavity 21 is provided on the upper end surface of the installation chassis 2. The installation chassis 2 and the installation cavity 21 facilitate the installation and fixation of the external assembled substation on the upper end of the support bottom plate 1. A support assembly 4 is provided on the lower end surface of the base plate 3, and the support assembly 4 can support the base plate 3 in soft soil areas. An anti-settlement assembly 5 is provided at the bottom of the support assembly 4, and the anti-settlement assembly 5 can improve the anti-settlement ability of the support assembly 4.

[0028] The support assembly 4 includes a first side baffle 43, a pre-embedded base 44, and a second side baffle 45. The pre-embedded base 44 is fixedly connected to the lower end surface of the base plate 3. The pre-embedded base 44, the base plate 3, and the insertion rod 51 are of an integral structure. The upper half of the pre-embedded base 44 is inclined outward. The pre-embedded base 44 with the upper half inclined outward can disperse the downward force from the base plate 3 and prevent it from further descending, thereby improving the support stability of the base plate 3 when used in soft soil areas. The pre-embedded base 44 is a hollow structure. The pre-embedded base 44 with a hollow structure is not only lighter in self-weight but also convenient for workers to enter the interior of the pre-embedded base 44 for construction. The first side baffles 43 are symmetrically and fixedly connected to the left and right end faces of the pre-embedded base 44. The second side baffles 45 are symmetrically and fixedly connected to the front and rear end faces of the pre-embedded base 44. The first side baffle 43 and the second side baffle 45 are both of an integral structure with the pre-embedded base 44. The first side baffle 43 and the second side baffle 45 can further increase the support area of the pre-embedded base 44, making the anti-settlement ability of the pre-embedded base 44 better during use in soft soil areas.

[0029] On the left and right sides of the base plate 3, first storage cavities 48 are symmetrically opened. The first storage cavities 48 facilitate the insertion and storage of the first extension plates 41 inside the base plate 3. The first extension plates 41 are inserted into the first storage cavities 48. After extending outwards, the first extension plates 41 can further increase the lateral support range of the base plate 3. On the left and right sides of the upper end surface of the base plate 3, first fixing screws 42 are symmetrically installed. The first fixing screws 42 can fix the first extension plates 41 inserted into the first storage cavities 48. On the front and back sides of the base plate 3, second storage cavities 49 are symmetrically opened. The second storage cavities 49 facilitate the insertion and storage of the second extension plates 46 inside the base plate 3. The second extension plates 46 are inserted into the second storage cavities 49. After extending outwards, the second extension plates 46 can further increase the longitudinal support range of the base plate 3. On the front and back sides of the upper end surface of the base plate 3, second fixing screws 47 are symmetrically installed. The second fixing screws 47 can fix the second extension plates 46 inserted into the second storage cavities 49.

[0030] Embodiment 2:

[0031] On the basis of Embodiment 1, in this embodiment, by fixedly connecting a plurality of insertion rods 51 with a length of 1.5 - 2 meters, the bearing capacity of the embedded base 44 can be enhanced, the settlement of the embedded base 44 can be reduced, the verticality and stability of the embedded base 44 can be maintained, and the communicating cavity 54 and the hollow cavity 53 which are connected to each other facilitate the staff to fill an appropriate amount of soil hardening agent into the insertion rods 51, so that the soil hardening agent hardens the soft soil at the lower end of the insertion rods 51. At the same time, a part of the soil hardening agent in the hollow cavity 53 will be led out through a plurality of overflow through holes 52, so that the soil hardening agent hardens the soft soil around the plurality of insertion rods 51, thereby further improving the anti-settlement ability of the embedded base 44.

[0032] The anti-settlement assembly 5 includes insertion rods 51, overflow through holes 52 and a communicating cavity 54. A plurality of insertion rods 51 are fixedly connected to the lower end surface of the embedded base 44. The length of the insertion rods 51 is 1.5 - 2 meters. The plurality of insertion rods 51 with a length of 1.5 - 2 meters can not only enhance the bearing capacity of the embedded base 44, reduce the settlement of the embedded base 44, maintain the verticality and stability of the embedded base 44, but also facilitate the staff to fill an appropriate amount of soil hardening agent into the soft soil below the embedded base 44.

[0033] A plurality of overflow through-holes 52 are formed in the annular side surface of the insertion rod 51. The plurality of overflow through-holes 52 can lead out a part of the soil hardening agent inside the insertion rod 51 to the surroundings, so that the soil hardening agent hardens the soft soil around the insertion rod 51. A plurality of communication cavities 54 are formed at the bottom of the embedded base 44. A hollow cavity 53 is formed inside the insertion rod 51. The communication cavity 54 is communicated with the hollow cavity 53. The communicated communication cavity 54 and hollow cavity 53 facilitate the staff to fill an appropriate amount of soil hardening agent into the insertion rod 51. A circular through-cavity 55 is formed at the middle position inside the base plate 3, and the inner diameter of the circular through-cavity 55 is 80 cm. The circular through-cavity 55 with an inner diameter of 80 cm facilitates the staff to enter the inside of the embedded base 44. A manhole cover 56 is installed on the upper end surface of the base plate 3, and the manhole cover 56 is of a detachable structure. The detachable manhole cover 56 facilitates the staff to install or open it.

[0034] Working principle: Before installing the prefabricated substation, the staff first use corresponding external mechanical equipment to dig pits and drill holes at the required positions in the soft soil area. During this process, the pits dug in the soft soil area need to match the embedded base 44. At the same time, holes matching multiple insertion rods 51 need to be drilled at designated positions at the bottom of the pits. Then, the staff can place the embedded base 44 in the dug pits and insert the insertion rods 51 into the corresponding holes. At the same time, a certain settlement gap needs to be reserved between the lower end face of the base plate 3 and the soft soil ground. After placement, the gap between the embedded base 44 and the pit is filled with soil hardener to make the soft soil around the embedded base 44 harder. Then, the staff disassemble the manhole cover 56 and enter the inside of the embedded base 44 through the circular cavity 55. At this time, the soil hardener can be filled into the hollow cavity 53 through the communication cavity 54. During this process, a part of the soil hardener in the hollow cavity 53 will be exported through multiple overflow through holes 52 so that the soil hardener can harden the soft soil around the multiple insertion rods 51. At the same time, the hollow cavity 53 will export the flowing-in soil hardener downward so that the flowing-out soil hardener can harden the soft soil at the bottom of the multiple insertion rods 51, thereby improving the support hardness of the soft soil at the bottom of the embedded base 44. After filling, the staff come out from the circular cavity 55 and install and fix the manhole cover 56 on the upper end face of the circular cavity 55 to block the manhole cover 56. Subsequently, the support bottom plate 1 is installed and fixed on the upper end of the support seat 6. After installation, the first fixing screw 42 and the second fixing screw 47 are respectively loosened with the help of an external wrench. At this time, the first extension plate 41 and the second extension plate 46 can be respectively pulled outwards to increase the horizontal and vertical support areas of the base plate 3, so that the anti-settlement ability of the embedded base 44 is better during use in the soft soil area. When the first extension plate 41 and the second extension plate 46 are both pulled outwards in place, the first fixing screw 42 and the second fixing screw 47 are respectively tightened to prevent the first extension plate 41 and the second extension plate 46 from expanding and contracting again. Then, the staff can install and fix the external prefabricated substation on the installation chassis 2 for use. During the use of the external prefabricated substation, the first side baffle 43 and the second side baffle 45 can further increase the support area of the embedded base 44. And the upper half of the embedded base 44 with an outward inclination can also disperse the downward force from the base plate 3 and prevent it from further descending. At the same time, the insertion rods 51 can not only enhance the bearing capacity of the embedded base 44, reduce the settlement of the embedded base 44, and maintain the verticality and stability of the embedded base 44, thereby improving the support stability of the base plate 3 during use in the soft soil area.

[0035] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An assembled substation structure foundation for soft soil areas, comprising a support bottom plate (1), an installation chassis (2), a foundation plate (3), and a support seat (6), characterized in that: On the upper end face of the base plate (3), support seats (6) are symmetrically and fixedly connected to the left and right sides. On the upper end of the support seats (6), a support bottom plate (1) is installed. On the upper end face of the support bottom plate (1), an installation bottom frame (2) is fixedly connected. On the lower end face of the base plate (3), a support assembly (4) is provided, and the support assembly (4) can support the base plate (3) in soft soil areas. At the bottom of the support assembly (4), a settlement prevention assembly (5) is provided, and the settlement prevention assembly (5) can improve the settlement prevention ability of the support assembly (4).

2. The prefabricated substation structure foundation for soft soil areas according to claim 1, characterized in that: The support assembly (4) includes a first side baffle (43), a pre-embedded base (44), and a second side baffle (45). On the lower end face of the base plate (3), the pre-embedded base (44) is fixedly connected. On the left and right end faces of the pre-embedded base (44), the first side baffle (43) is symmetrically and fixedly connected. On the front and rear end faces of the pre-embedded base (44), the second side baffle (45) is symmetrically and fixedly connected.

3. The prefabricated substation structure foundation for soft soil areas according to claim 2, characterized in that: The settlement prevention assembly (5) includes insertion rods (51), overflow through holes (52), and communication cavities (54). On the lower end face of the pre-embedded base (44), a plurality of insertion rods (51) are fixedly connected. On the circumferential side surface of the insertion rods (51), a plurality of overflow through holes (52) are provided. On the bottom of the pre-embedded base (44), a plurality of communication cavities (54) are provided.

4. The prefabricated substation structure foundation for soft soil areas according to claim 3, wherein: A hollow cavity (53) is provided inside the insertion rods (51). The length of the insertion rods (51) is 1.5 - 2 meters. The communication cavities (54) are communicated with the hollow cavity (53).

5. The prefabricated substation structure foundation for soft soil areas according to claim 1, characterized in that: A circular through cavity (55) is provided at the middle position inside the base plate (3), and the inner diameter of the circular through cavity (55) is 80 cm. On the upper end face of the base plate (3), a manhole cover (56) is installed, and the manhole cover (56) is a detachable structure.

6. The prefabricated substation structure foundation for soft soil areas according to claim 1, characterized in that: On the left and right sides inside the base plate (3), first storage cavities (48) are symmetrically provided. Inside the first storage cavities (48), first extension plates (41) are inserted. On the left and right sides of the upper end face of the base plate (3), first fixing screws (42) are symmetrically installed. On the front and rear sides inside the base plate (3), second storage cavities (49) are symmetrically provided. Inside the second storage cavities (49), second extension plates (46) are inserted. On the front and rear sides of the upper end face of the base plate (3), second fixing screws (47) are symmetrically installed.

7. The prefabricated substation structure foundation for soft soil areas according to claim 2, characterized in that: The upper half of the pre-embedded base (44) is inclined outward. The pre-embedded base (44) is a hollow structure. On the upper end face of the installation bottom frame (2), an installation cavity (21) is provided.

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