Novel inverted beam-slab structure cable trench for transformer substation
By using inverted beam and slab structure cable trench composed of concrete beams and cast-in-place concrete slabs in the substation, and using brilliance concrete and graded gravel at the end of the cable trench to strengthen the foundation, the equipment foundation and the built cable trench location are solved. The conflict ensures construction safety and the stable operation of the substation.
Patent Information
- Application Number
- CN202323351578.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-10
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-10
AI Technical Summary
When the existing cable trench is expanded, the equipment foundation conflicts with the plane of the built cable trench, resulting in construction difficulties and may lead to cable trench collapse, affecting safety and normal operation.
Concrete beams are used to replace the traditional cable trench side walls and cast-in-place concrete slabs to replace the cable trench bottom plates, forming an inverted beam and slab structure, and the foundation foundation is strengthened using brilliance concrete and graded gravel at the ends of the cable trench.
The problem of conflict between the equipment foundation and the built cable trench was solved, the stability of the cable trench was ensured, and the equipment foundation construction was allowed under the cable trench was ensured, and the construction safety and the normal operation of the substation were ensured.
Smart Images
Figure CN222169275U_ABST
Abstract
Description
Technical Field
[0001] This utility model patent relates to a new type of inverted beam-slab structure cable trench for a substation, which is suitable for cable trenches in the substation area of substations of various voltage levels. Background Art
[0002] Up to now, according to the requirements of the existing standard process of power transmission and transformation projects, the types of cable trenches in the substation area of each voltage level include: brick cable trenches and cast-in-place concrete cable trenches.
[0003] In the new substation construction project, in order to reduce the area occupied by the substation, the distribution equipment area of each voltage level substation adopts a compact layout solution. Figure 1 As shown, a cable trench 1 is laid on the plain concrete cushion 2, and a cable trench cover 3 is arranged on the cable trench 1. According to the needs of electrical cable laying, the main cable trenches in the station area are all built at the same time. This will lead to a plane position conflict between the equipment foundation and the built cable trench when the distribution device area is expanded later. The equipment foundation needs to be placed under the built cable trench. The cable trench will be suspended during the construction of the equipment foundation. Since the cable trench itself does not have the in-plane bending bearing capacity, it may cause the cable trench to collapse and be damaged, seriously affecting the safety of construction personnel and the normal operation of the substation. Utility Model Content
[0004] The technical problem to be solved by the utility model is: in view of the problems in the prior art that it is difficult to expand the equipment foundation of the cable trench and the bending bearing capacity of the cable trench is poor, the utility model provides a new inverted beam-slab structure cable trench for a substation.
[0005] In order to achieve the above object, the utility model is realized by the following technical solutions:
[0006] A new type of inverted beam-slab structure cable trench for a substation, wherein the cable trench is laid on a plain concrete cushion layer, a cable trench cover is arranged on the cable trench, a beam is arranged at the bottom of each side wall of the cable trench, and a bottom plate is arranged at the bottom of the cable trench; within a range of 0.5-2m from the end of the cable trench, graded crushed stone layers and rubble stone concrete layers are arranged in sequence from bottom to top on both sides of the outside of the beam.
[0007] The beams are concrete beams and the bottom slab is cast-in-place concrete slab.
[0008] Compared with the prior art, the utility model has the following beneficial effects: the utility model replaces the traditional cable trench sidewall with concrete beams, replaces the traditional cable trench bottom plate with cast-in-place concrete slabs, forms a new inverted beam-slab structure cable trench, and uses rough stone concrete and graded crushed stone to strengthen the foundation within a range of about 1m from the end of the cable trench. The utility model can perfectly solve the problem of difficult construction due to the conflict between the plane position of the equipment foundation and the position of the built main cable trench in the later expansion project of the built substation, and the equipment foundation can be constructed below the cable trench. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is the structural diagram of the existing cable trench;
[0010] Figure 2 It is a structural diagram of the utility model;
[0011] Figure 3 for Figure 2 Middle AA view;
[0012] Figure 4 for Figure 3 This is the BB view. DETAILED DESCRIPTION
[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0014] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0015] like Figure 2 As shown, a cable trench 1 is laid on a plain concrete cushion layer 2, and a cable trench cover plate 3 is arranged on the cable trench 1. However, in the present utility model, a beam 4 is arranged at the bottom of each side wall of the cable trench, and a bottom plate 5 is arranged at the bottom of the cable trench 1. Within a range of 0.5-2m from the end of the cable trench, a graded crushed stone layer 6 and a rough stone concrete layer 7 are arranged on both sides of the outside of the beam 4 from bottom to top.
[0016] More specifically, depending on the specific foundation conditions, within 0.5m, 1m or 2m from the end of the cable trench, on both sides of the outside of the beam 4, a graded crushed stone layer 6 and a rough stone concrete layer 7 are sequentially arranged from bottom to top.
[0017] Furthermore, the beam 4 is a concrete beam, and the bottom plate 5 is a cast-in-place concrete plate.
[0018] The principle of the utility model is:
[0019] The traditional cable trench sidewalls are replaced by concrete beams, and the traditional cable trench bottom plates are replaced by cast-in-place concrete slabs to form a new type of inverted beam-slab cable trench, and the foundation is strengthened by rough stone concrete and graded crushed stone within a range of about 1m from the end of the cable trench. The new type of inverted beam-slab cable trench for substations proposed by the utility model can perfectly solve the problem of difficult construction due to the conflict between the plane position of the equipment foundation and the position of the built main cable trench in the later expansion project of the built substation, and the equipment foundation can be constructed below the cable trench.
[0020] The above is only a preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as the protection scope of the present invention.
Claims
1. A new type of inverted beam-slab structure cable trench for a substation, wherein a cable trench (1) is laid on a plain concrete cushion layer (2), and a cable trench cover (3) is arranged on the cable trench (1), characterized in that: A beam (4) is arranged at the bottom of the side wall of each cable trench, and a bottom plate (5) is arranged at the bottom of the cable trench (1); within a range of 0.5-2 m from the end of the cable trench, a graded crushed stone layer (6) and a rough stone concrete layer (7) are arranged in sequence from bottom to top on both sides of the outside of the beam (4).
2. According to claim 1, a new type of inverted beam-slab structure cable trench for a substation is characterized by: The beam (4) is a concrete beam, and the bottom plate (5) is a cast-in-place concrete plate.