Indoor cable tunnel below zero meter
By jointly designing the cable tunnel structure with the underground structure of the house, the height of the foundation bearing is raised, and the problem of too deep burial of the house foundation bearing in the existing technology is solved, and the effect of reducing the excavation volume of foundation pits and reducing project costs is achieved.
Patent Information
- Application Number
- CN202420252384.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-02-01
AI Technical Summary
The existing indoor cable tunnel design below zero meters leads to an increase in the burial depth of the building foundation, a large amount of excavation of the foundation pit, resulting in an increase in the project cost and construction period.
The cable tunnel structural components are jointly designed with the house underground structural framework to raise the height of the foundation bearing, reduce the depth of the foundation buried, and reduce the amount of foundation pit excavation. Specific measures include setting up a foundation bearing under the ground, connecting the transverse load-bearing structure and the longitudinal load-bearing structure, and using cast-in-place reinforced concrete structure to achieve rigid connection.
Maximize the elevation of the base base of the house, reduce the depth of the foundation burial, reduce the excavation volume of foundation pits, and achieve the purpose of reducing the project cost and reducing the project construction period.
Smart Images
Figure CN222620650U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electric power civil construction and relates to an indoor cable tunnel below zero meters. Background Art
[0002] Power plants are an important part of national energy construction. The cables in power plants are mainly arranged on cable trays above the ground and in cable trenches below the ground. When the amount of cables is large, cable tunnels are considered to replace cable trenches for the convenience of inspection and maintenance. Cable tunnels are underground passages for cable facilities and maintenance structures for cable facilities. They are closed underground structures surrounded by side walls, top plates and bottom plates, and are made of reinforced concrete.
[0003] Cable tunnels are normally set up independently outdoors, but in indoor zero-meter distribution rooms, some distribution cabinets arranged on the ground often use under-cabinet wiring. Structures need to be set up below zero meters. They must not only bear the function of the load of the distribution cabinets placed, but also provide cable channels and cable maintenance channels for the under-cabinet wiring of the distribution cabinets. Such underground structures need to be designed as cable tunnels.
[0004] According to conventional design, the indoor cable tunnel is separated from the house structure and set up independently, including side walls, top plates and bottom plates, of which the top plate is provided with concrete beams to reduce the calculated span of the top plate; considering that the internal space of the cable tunnel needs to meet the requirements of personnel inspection and passage, the tunnel must meet the clearance requirement of more than 2m, plus the height of the top beam and the thickness of the bottom plate, the overall cross-sectional height of the cable tunnel must reach more than 3m. The structural components of the house include foundation pedestals, frame columns, etc., of which the foundation pedestals and some frame columns are located below the ground; when carrying out the underground structure design of the house, the foundation pedestals of the house must be set below the bottom plate of the cable tunnel, which will increase the buried depth of the foundation pedestals of the house and greatly increase the amount of foundation pit excavation.
[0005] In view of the difficulties faced in the design of the above-mentioned indoor cable tunnels below zero meters, a new indoor cable tunnel below zero meters is proposed. Summary of the invention
[0006] In view of the deficiencies in the prior art, the utility model provides an indoor cable tunnel below zero meter, which can effectively solve the disadvantage of deep burial depth of the foundation pedestal of the house, and has reasonable design, safety and reliability, and convenient construction.
[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0008] An indoor cable tunnel below zero meters includes a building structure and a bottom plate, a top plate and surrounding side walls of the cable tunnel. The building structure includes a foundation pedestal and frame columns. The foundation pedestal is arranged below the ground and arranged on the surroundings. The frame columns are arranged in the central vertical direction of the foundation pedestal. The side walls of the foundation platform are connected with the bottom plate. The space enclosed by the frame columns is provided with surrounding side walls. The surrounding side walls are connected with the frame columns. The height of the surrounding side walls is smaller than that of the frame columns. The building structure also includes a transverse load-bearing structure and a longitudinal load-bearing structure respectively connected with the bottom plate and the top plate.
[0009] Furthermore, the transverse load-bearing structure includes a foundation tie beam, horizontal steel bars of which are anchored into the side walls of the foundation pedestal, and the foundation tie beam is arranged below the bottom plate.
[0010] Furthermore, the longitudinal load-bearing structure includes a frame beam, which is arranged between two frame columns and below the top plate.
[0011] Furthermore, a plurality of secondary beams are arranged between the frame beams.
[0012] Furthermore, the transverse reinforcement of the bottom plate is anchored into the side wall of the foundation pedestal, the longitudinal reinforcement of the bottom plate is anchored into the foundation tension beam, and the reinforcement of the top plate is anchored into the frame beam or the secondary beam.
[0013] Furthermore, the vertical steel bars of the surrounding side walls are respectively anchored downward into the foundation pedestal or foundation tension beam, and the horizontal steel bars of the surrounding side walls are anchored into the frame columns.
[0014] Furthermore, the foundation pedestal, foundation tension beam, bottom plate, frame column, side plate, frame beam, secondary beam and top plate are all cast-in-place reinforced concrete structures.
[0015] Furthermore, the top elevation of the foundation pedestal is flush with the top elevation of the base plate.
[0016] Furthermore, the top plate is flush with the ground.
[0017] Furthermore, the top plate of the cable tunnel is provided with openings for passing cables at corresponding positions.
[0018] Beneficial Effects
[0019] The joint design of the cable tunnel structural components and the underground structure of the house can maximize the elevation of the bottom of the house foundation pedestal, reduce the foundation burial depth, and reduce the amount of foundation pit excavation, which is conducive to reducing the project cost and shortening the project construction period. The burial depth of the top of the foundation pedestal of the cable tunnel adopted by the utility model is raised from -4.0m to -3.0m. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a cross-sectional view of the cable tunnel of the utility model.
[0021] Figure 2 This is a plan view of the top plate of the cable tunnel of the utility model.
[0022] Figure 3 This is a plan view of the bottom plate of the cable tunnel of the present utility model.
[0023] Explanation of the reference numerals: 1. foundation pedestal; 2. foundation tension beam; 3. waterproof board; 4. frame column; 5. retaining wall; 6. frame beam; 7. secondary beam; 8. top plate. DETAILED DESCRIPTION
[0024] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.
[0025] like Figure 1-3 As shown, an indoor cable tunnel below zero meters includes a foundation cap 1, a foundation tension beam 2, a waterproof board 3, a frame column 4, a retaining wall 5, a frame beam 6, a secondary beam 7, and a top plate 8.
[0026] Specifically, the foundation pedestal is located below the ground and is symmetrically distributed around. Preferably, there are 8 of them. 8 frame columns 4 are arranged above the 8 foundation pedestals 1. The side walls of the foundation pedestals 1 are connected with waterproof boards 3 used as bottom plates. Retaining walls 5 used as side walls are arranged in the space surrounded by the frame columns 4. The retaining walls 5 are connected to the frame columns 4. The waterproof boards 3 and the top plates 8 are also respectively connected with the foundation tension beams 2 used as transverse load-bearing structures and the frame beams 6 used as longitudinal load-bearing structures.
[0027] By adopting the above structure, the building structure is jointly designed with the original structure of the cable tunnel to maximally raise the height of the foundation pedestal and reduce the amount of foundation pit excavation, which is conducive to reducing the project cost and shortening the project construction period.
[0028] The foundation cap 1, foundation tension beam 2, waterproof board 3, frame column 4, retaining wall 5, frame beam 6, secondary beam 7 and top plate 8 are all cast-in-place reinforced concrete structures.
[0029] The horizontal steel bars of the foundation tension beam 2 are anchored into the foundation cap 1, and the two are rigidly connected.
[0030] The top elevation of the waterproof board 3 is flush with the top elevation of the foundation pedestal 1, and the steel bars in the waterproof board 3 are anchored into the foundation pedestal 1 or the foundation tension beam 2 to achieve a rigid connection with the two.
[0031] The vertical reinforcements of the retaining wall 5 are anchored into the foundation cap 1 or the foundation tension beam 2 , and the horizontal reinforcements are anchored into the frame column 4 .
[0032] The vertical reinforcement of the frame beam 6 is anchored into the frame column 4, and the two are rigidly connected.
[0033] The steel bars in the top plate 8 are anchored into the frame beam 6 or the secondary beam 7 to achieve a rigid connection with the two.
[0034] The top plate 8 is flush with the ground.
[0035] The cable tunnel top plate 8 is provided with openings for passing cables at corresponding positions.
[0036] The above is only a preferred embodiment of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. An indoor cable tunnel below zero meters, characterized in that: The invention comprises a bottom plate, a top plate and surrounding side walls of a house structure and a cable tunnel, wherein the house structure comprises a foundation pedestal and frame columns, wherein the foundation pedestal is arranged below the ground and on surrounding sides, wherein the frame columns are arranged in the central vertical direction of the foundation pedestal, wherein the side walls of the foundation pedestal are connected with the bottom plate, wherein surrounding side walls are arranged in the space enclosed by the frame columns, wherein the surrounding side walls are connected with the frame columns, and wherein the height of the surrounding side walls is smaller than that of the frame columns, and wherein the house structure further comprises a transverse load-bearing structure and a longitudinal load-bearing structure respectively connected with the bottom plate and the top plate.
2. The indoor sub-zero-meter cable tunnel according to claim 1, characterized in that: The transverse load-bearing structure comprises a foundation tie beam, horizontal steel bars of which are anchored into the side walls of the foundation pedestal, and the foundation tie beam is arranged below the bottom plate.
3. The indoor sub-zero-meter cable tunnel according to claim 2, characterized in that: The longitudinal load-bearing structure comprises a frame beam, which is arranged between two frame columns and below the top plate.
4. The indoor sub-zero-meter cable tunnel according to claim 3, characterized in that: A plurality of secondary beams are arranged between the frame beams.
5. The indoor sub-zero-meter cable tunnel according to claim 4, characterized in that: The transverse reinforcement of the bottom plate is anchored into the side wall of the foundation pedestal, the longitudinal reinforcement of the bottom plate is anchored into the foundation tension beam, and the reinforcement of the top plate is anchored into the frame beam or the secondary beam.
6. The indoor sub-zero-meter cable tunnel according to claim 5, characterized in that: The vertical steel bars of the surrounding side walls are respectively anchored downward into the foundation pedestal or foundation tension beam, and the horizontal steel bars of the surrounding side walls are anchored into the frame columns.
7. The indoor sub-zero-meter cable tunnel according to claim 6, characterized in that: The foundation pedestal, foundation tension beam, bottom plate, frame column, surrounding side walls, frame beam, secondary beam and top plate are all cast-in-place reinforced concrete structures.
8. The indoor sub-zero-meter cable tunnel according to claim 1, characterized in that: The top elevation of the foundation pedestal is flush with the top elevation of the base plate.
9. The indoor sub-zero-meter cable tunnel according to claim 1, characterized in that: The top plate is flush with the ground.
10. The indoor sub-zero-meter cable tunnel according to claim 1, characterized in that: The top plate of the cable tunnel is provided with openings for passing cables at corresponding positions.