Engineering protection structure for underneath passing of existing high-voltage line in road engineering

Abstract

The utility model discloses an engineering protection structure for a road engineering to pass through an existing high-voltage line, which belongs to the technical field of engineering buildings and comprises a composite protection plate and a concrete frame structure which are erected below the high-voltage line, the composite protection plate is arranged on the concrete frame structure, and a traffic space is formed in the concrete frame structure. According to the engineering protection structure, through the space formed by the composite protection plate and the frame structure, the potential safety hazard of falling impact of the high-voltage line on vehicles and pedestrians is solved, meanwhile, the influence of falling impact of the high-voltage line on road construction and operation is eliminated, and the defects of high-voltage line tower relocation and road route relocation are avoided; the construction and operation time and economic cost are reduced, and good social benefits and economic benefits are brought.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering buildings and relates to an engineering protection structure for a road engineering project under which an existing high-voltage line is passed. Background Art

[0002] As the process of urbanization continues to advance, more and more cities are investing in the construction of road projects, and the coverage rate of road projects has increased unprecedentedly. This has made it inevitable that the construction and operation of new road projects will be close to or under existing high-voltage lines. There is a risk of high-voltage lines breaking. High-voltage lines that fall during the construction or operation of road projects will cause serious safety hazards to vehicles and pedestrians, and even cause serious economic losses and social impacts. However, at this stage, the conventional solution to solve the problem of road projects passing under existing high-voltage lines is to relocate high-voltage towers or reroute roads. Either solution requires a lot of time and economic costs. Therefore, it is urgent to provide a solution to the above problems. Utility Model Content

[0003] The utility model aims to provide a protective structure for an engineering project underpassing an existing high-voltage line in a road project, so as to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides an engineering protection structure for a road project passing under an existing high-voltage line, comprising a composite protection plate and a concrete frame structure erected below the high-voltage line, wherein the composite protection plate is arranged on the concrete frame structure, and a traffic space is formed inside the concrete frame structure.

[0006] Further technology of the utility model:

[0007] Preferably, the composite protective plate is divided into three layers, which are respectively a waterproof sand layer, a polyurethane waterproof coating layer and a concrete structure layer from top to bottom.

[0008] Preferably, the concrete frame structure comprises a main beam, columns and secondary beams, wherein each main beam is mounted on two adjacent columns, and the secondary beams are vertically connected to the two adjacent main beams.

[0009] Preferably, the concrete frame structure as a whole is connected to one end of a pile foundation through a column, and the pile foundation is embedded in a rock formation.

[0010] Preferably, the composite protective plate is provided with a drainage system, which includes a side-entry rain gutter, a PVC drainage pipe and a pipe clamp. The water inlet of the side-entry rain gutter is connected to the upper part of the composite protective plate, and the water outlet of the side-entry rain gutter is connected to the PVC drainage pipe. The PVC drainage pipe is fixed to the side of the column by a pipe clamp.

[0011] Preferably, expansion joints are arranged at intervals on the composite protective plates.

[0012] Preferably, the spacing between the expansion joints is 30 to 40 m.

[0013] Preferably, the expansion joint comprises, from top to bottom, a low modulus polyurethane sealant, a polyethylene sheet, a centrally embedded steel-edged rubber waterstop, a nitrile cork rubber pad, a foam rod and a high modulus polyurethane sealant.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The engineering protection structure of the utility model solves the safety hazard posed to vehicles and pedestrians by the impact of falling high-voltage wires through the space composed of composite protection plates and frame structures, eliminates the impact of falling high-voltage wires on road construction and operation, avoids the disadvantages of relocating high-voltage wire towers and rerouting road routes, reduces the time and economic cost of construction and operation, and brings good social and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A front schematic diagram of a protective structure for a road project underpassing an existing high-voltage line;

[0017] Figure 2 A schematic top view of a protective structure for a road project under an existing high-voltage line;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of the expansion joint in the protective structure shown;

[0019] In the figure: 1-composite protective plate; 11-waterproof mortar; 12-polyurethane waterproof coating; 13-concrete structural layer; 2-concrete frame structure; 21-main beam; 22-column; 23-secondary beam; 3-pile foundation; 4-drainage system; 41-side entry rainwater bucket; 42-PVC drainage pipe; 43-pipe clamp; 5-expansion joint; 51-ester sealant; 52-polyethylene sheet; 53-buried steel-edge rubber waterstop; 54-nitrile cork rubber pad; 55-foam rod; 56-high modulus polyurethane sealant; 6-road. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-3 In an embodiment of the utility model, an engineering protection structure for a road project passing under an existing high-voltage line is provided. The engineering protection structure is placed on the road 6 to meet the operating conditions and safety requirements of the road 6.

[0022] It comprises a composite protective plate 1 and a concrete frame structure 2 which are erected under a 1000 kV high voltage line, wherein a traffic space is formed inside the composite protective plate 1 and the concrete frame structure 2.

[0023] In this embodiment, the composite protective plate 1 is responsible for preventing the instantaneous load and electric energy release caused by the impact of high-voltage line disconnection in road projects. The height of the concrete frame structure 2 meets the limit height required for road project operations, and the span of the main beam 21 meets the limit width required for road project operations, thereby ensuring the normal progress of the construction and operation stages.

[0024] The length of the frame structure is determined by the plane area formed by the existing high-voltage line extending horizontally outward and perpendicular to the ground. In general areas, the side line extension distances of each level of voltage conductors are: 5 meters for 10 kV, 10 meters for 35-110 kV, 15 meters for 220 kV, 20 meters for 500 kV, and 30 meters for 800-1000 kV.

[0025] The composite protective plate 1 is as follows Figure 3 As shown, there are three layers, namely waterproof mortar 11, polyurethane waterproof coating 12, and concrete structure layer 13. The waterproof mortar 11 and polyurethane waterproof coating 12 jointly play the role of insulation and waterproofing, and the concrete structure layer 13 plays the role of impact resistance.

[0026] The concrete frame structure 2 is a conventional structure in the construction field, including a main beam 21, a column 22, and a secondary beam 23. Among them, each main beam 21 is erected on two adjacent columns 22, and the secondary beam 23 vertically connects the two adjacent main beams 21. The concrete frame structure 2 is connected to one end of the pile foundation 3 through the column 22, so that it is placed on the ground more stably. The above concrete frame structure 2 has strong stability and impact resistance, and is easy to obtain materials and is convenient for construction.

[0027] When a high-voltage line above a road project is found to be broken, the broken line falls onto the waterproof mortar 11, and the impact potential energy is dissipated to a certain extent due to absorption by the multi-layer composite coating, and is evenly transmitted to the concrete frame structure 2 through the concrete structure layer 13, avoiding local damage to the structure, and then transmitted to the pile foundation 3 through the column 22, and then transmitted and dispersed to the foundation. The pile foundation 3 is embedded in the rock layer, which can avoid the influence of uneven settlement of the foundation.

[0028] Preferably, the composite protective plate 1 is provided with expansion joints 5 at intervals. Figure 3As shown, the expansion joint includes a low modulus polyurethane sealant 51, a polyethylene sheet 52, a buried steel edge rubber water stop 53, a nitrile cork rubber pad 54, a foam rod 55, and a high modulus polyurethane sealant 56. The expansion joint 5 is spaced 30 to 40 meters apart, which ensures the overall stress performance and waterproof performance of the composite protective plate 1, while reducing the loss caused by changes in the external environment and improving the durability of the structure.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A protective structure for a road project under an existing high-voltage line, characterized in that: It comprises a composite protective plate and a concrete frame structure erected below a high-voltage line. The composite protective plate is arranged on the concrete frame structure, and a traffic space is formed inside the concrete frame structure.

2. According to claim 1, a protective structure for a road project under an existing high-voltage line, characterized in that: The composite protective plate is divided into three layers, which are respectively a waterproof sand layer, a polyurethane waterproof coating layer and a concrete structure layer from top to bottom.

3. According to the engineering protection structure for a road project underpassing an existing high-voltage line as described in claim 1, it is characterized by: The concrete frame structure comprises a main beam, columns and secondary beams, wherein each main beam is erected on two adjacent columns, and the secondary beams are respectively vertically connected to the two adjacent main beams.

4. According to claim 3, a protective structure for a road project under an existing high-voltage line, characterized in that: The concrete frame structure as a whole is connected to one end of a pile foundation through a column, and the pile foundation is embedded in a rock layer.

5. According to claim 3, a protective structure for a road project under an existing high-voltage line, characterized in that: The composite protective plate is provided with a drainage system, which includes a side-entry rainwater bucket, a PVC drainage pipe and a pipe clamp. The water inlet of the side-entry rainwater bucket is connected to the upper part of the composite protective plate, and the water outlet of the side-entry rainwater bucket is connected to the PVC drainage pipe. The PVC drainage pipe is fixed to the side of the column by a pipe clamp.

6. According to claim 1, a protective structure for a road project under an existing high-voltage line, characterized in that: Expansion joints are arranged at intervals on the composite protective plates.

7. According to claim 6, a protective structure for a road project under an existing high-voltage line, characterized in that: The expansion joints are spaced 30 to 40 m apart.

8. According to claim 6, a protective structure for a road project under an existing high-voltage line, characterized in that: The expansion joint comprises, from top to bottom, a low modulus polyurethane sealant, a polyethylene sheet, a centrally embedded steel-edge rubber waterstop, a nitrile cork rubber pad, a foam rod and a high modulus polyurethane sealant.

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