E-shaped bracket for wind, water and electricity pipelines in pumped storage power station workshop construction

Abstract

The utility model provides a pumped storage power station workshop construction wind and water power pipeline E-shaped support which comprises an E-shaped integrated main heavy frame. The E-shaped integrated main heavy frame comprises a vertical main beam and at least two transverse supporting arms, wherein the vertical main beam is vertically arranged along a tunnel wall, and the transverse supporting arms integrally extend out of the same side of the vertical main beam and are used for bearing pipelines. The anchoring assembly is used for anchoring the vertical main beam of the E-shaped integrated main heavy frame on the wall surface of the tunnel side wall in a cantilever mode; and the at least two pipeline bearing assemblies are respectively arranged on the transverse supporting arms and are used for directly or indirectly fixing pipelines. The triangular conical support can solve the technical problems that in the prior art, a triangular conical support occupies effective clearance, cost is high, construction is inconvenient, and pipeline layout is not attractive.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering construction technology, specifically to an E-type support for the wind, water and electricity pipelines in the construction of a pumped storage power station. Background Technology

[0002] Currently, the laying of ventilation, water and electricity pipelines in tunnels generally adopts ground-mounted or low-positioned triangular pyramidal supports. Such supports (such as those disclosed in Chinese Patent CN211925024U) typically include a central upright and a triangular base support fixed to the bottom of the upright. The triangular base support consists of three legs distributed in a triangular pyramid shape to provide the stability of the structure itself.

[0003] However, this traditional triangular pyramidal support has the following significant drawbacks in practical applications:

[0004] Encroachment on the effective clearance of the tunnel: The triangular pyramid-shaped base structure occupies a large area and protrudes into the tunnel, seriously encroaching on the valuable passage and working space inside the tunnel, posing a hidden danger to the entry and safe passage of large maintenance machinery in the later stage.

[0005] High material consumption and high cost: To ensure its own stability, especially when bearing heavy pipelines, a large amount of steel is required to construct a stable triangular pyramid structure, resulting in high material costs and processing and manufacturing costs.

[0006] Construction and installation are inconvenient: The bracket usually needs to be assembled and welded on the construction site, which is a complicated process, requires a large working space, and has low installation efficiency, thus prolonging the construction period of tunnel ancillary works.

[0007] The pipeline layout is chaotic and affects the aesthetics: When multiple triangular pyramidal supports are arranged longitudinally along the tunnel, their complex structure often leads to an uneven pipeline arrangement and a poor overall appearance, which does not meet the requirements of standardization and regulation in modern tunnel engineering. Utility Model Content

[0008] The purpose of this utility model is to address the shortcomings of existing technologies by providing an E-type support for the construction of wind, water and electricity pipelines in pumped storage power station buildings.

[0009] The specific technical solution is as follows:

[0010] An E-type support for the ventilation, water, and electricity pipelines during the construction of a pumped storage power station building, comprising:

[0011] The E-type integrated main support frame includes a vertical main beam arranged vertically along the tunnel wall and at least two transverse support arms that extend integrally from the same side of the vertical main beam for supporting pipelines.

[0012] Anchoring components are used to cantilever-anchor the vertical main beam of the E-type integrated main load-bearing frame to the tunnel sidewall; and

[0013] At least two pipeline support assemblies are respectively disposed on the transverse support arm for directly or indirectly fixing the pipeline.

[0014] Optionally, the anchoring assembly includes at least two reinforcing bars embedded in the tunnel sidewall, and a connector for fixing the vertical main beam to the reinforcing bars.

[0015] Optionally, the connector is a circumferential weld that connects the vertical main beam to the end of the rebar.

[0016] Optionally, there are four lateral support arms, each used to support different types of pipes.

[0017] Optionally, a reinforcing rib is provided at the connection between the transverse support arm and the vertical main beam.

[0018] Optionally, the E-type integrated main load-bearing frame is made of channel steel.

[0019] Optionally, the pipeline support assembly includes a U-shaped pipe clamp.

[0020] Optionally, the U-shaped pipe clamp is provided with a vibration-damping elastic pad on its inner side.

[0021] Optionally, the material of the vibration-damping elastic pad is rubber or polyurethane.

[0022] Optionally, the free end of the lateral support arm is bent upward to form a limiting stop to prevent the pipe from rolling off.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] (1) This utility model supports multiple pipes at each support position on an E-type support structure, occupying only 0.1m2 area, which is two-thirds smaller than the 0.312m2 area occupied by the traditional triangular pyramid support;

[0025] (2) The present invention uses the anchored reinforcing bars to firmly weld the E-type bracket, ensuring the stability of the bracket after bearing the load.

[0026] (3) This utility model can integrate multiple support points into one E-type bracket through a four-way cross brace structure, which greatly reduces the number of support frames and reduces construction costs;

[0027] (4) Each cross brace of this utility model can provide a stable and sufficiently long support point. The pipe can be firmly connected by binding with wire or welding on the cross brace.

[0028] (5) This utility model can arrange multiple pipes in an orderly manner on the same vertical plane to form a beautiful linear structure, which greatly improves the image of civilized construction. Attached Figure Description

[0029] Figure 1 This utility model provides an overall structural schematic diagram of an E-type support for the construction of a pumped storage power station building, including wind, water, and electricity pipelines.

[0030] In the diagram: 1. E-type integrated main load-bearing frame; 11. Vertical main beam; 111. Anchor hole; 12. Horizontal support arm; 2. Anchoring assembly; 3. Tunnel wall. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0034] This utility model provides an E-type bracket for the construction of ventilation, water, and electricity pipelines in a pumped storage power station building, with reference to... Figure 1 ,include:

[0035] The E-type integrated main support frame 1 includes a vertical main beam 11 arranged vertically along the tunnel wall 3 and at least two transverse support arms 12 that extend integrally from the same side of the vertical main beam 11 for bearing pipelines.

[0036] Anchoring component 2 is used to anchor the vertical main beam 11 of the E-type integrated main support frame 1 to the wall surface of the tunnel sidewall in a cantilever manner; and at least two pipeline bearing components are respectively set on the transverse support arm 12 for directly or indirectly fixing pipelines.

[0037] Specifically, the E-type integrated main load-bearing frame 1 is mainly made of a single 10# Q235B channel steel through cutting and welding. It includes a 1500mm long vertical main beam 11 and four transverse support arms 12 welded perpendicularly to the vertical main beam 11. Each transverse support arm 12 is 450mm long and is evenly distributed from top to bottom along the vertical main beam 11 with a spacing of 310mm. The anchoring components include two reinforcing bars and welds as connectors. The reinforcing bars are HRB400 grade threaded steel bars with a diameter of Φ25mm and a length of 500mm. Pipeline support components (not shown in the figure) are installed on each horizontal support arm 12. Depending on the type of pipeline being supported, clean water, sewage, air supply, and power supply pipelines are placed on each horizontal support arm 12 from top to bottom until they reach the excavation face of the power plant. The structure can be adapted accordingly. For example, for circular water pipes or air ducts, U-shaped pipe clamps can be used as the support components. To reduce the transmission of pipeline vibration, a 5mm thick neoprene rubber vibration damping elastic pad can be installed on the inside of the U-shaped pipe clamp. For power cable trays, the bottom of the tray can be directly welded or fixed to the upper surface of the horizontal support arm 12 with bolts.

[0038] To enhance load-bearing capacity, triangular reinforcing ribs are welded between the base of each transverse support arm 12 and the vertical main beam 11. Furthermore, to prevent pipe slippage, the free end of each transverse support arm 12 is bent upwards by 50mm to form a limiting stop.

[0039] Installation and workflow:

[0040] Step 1: Based on the design elevation of the pipelines inside the tunnel, determine the installation position of the bracket on the concrete sidewall of the secondary lining of the tunnel, and use an impact drill to drill two anchor holes 111 corresponding to the rebar installation. The hole diameter is Φ28mm and the hole depth is 300mm.

[0041] Step 2: Use a high-pressure air gun and brush to thoroughly clean the dust inside the hole, then inject high-strength epoxy resin anchoring adhesive into the hole until it is two-thirds full; then, rotate the anchoring bar into the bottom of the hole, ensuring that the anchoring adhesive overflows evenly, and adjust the verticality of the exposed part of the anchoring bar.

[0042] Step 3: After the anchoring adhesive has fully cured to the design strength (usually 24 hours), precisely fit the vertical main beam 11 of the prefabricated E-type integrated main load-bearing frame 1 onto the exposed ends of the two anchoring bars.

[0043] Step 4: Using an electric welding machine, perform full welding along the contact edge between the vertical main beam 11 and the reinforcing bar to form a strong circumferential weld, thereby permanently connecting the E-type integrated main load-bearing frame 1 and the reinforcing bar into a whole.

[0044] Step 5: Place pipes or cable trays of different specifications on the corresponding horizontal support arms 12 in sequence, and finally fix them with the corresponding pipeline bearing components (U-shaped pipe clamps or metal cable ties) to complete the installation.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A construction air and water pipeline E-shaped support for a pumped storage power plant, characterized in that, include: The E-type integrated main support frame includes a vertical main beam arranged vertically along the tunnel wall and at least two transverse support arms that extend integrally from the same side of the vertical main beam for supporting pipelines. Anchoring components are used to cantilever-anchor the vertical main beam of the E-type integrated main support frame to the wall surface of the tunnel sidewall; and at least two pipeline bearing components are respectively set on the transverse support arm for directly or indirectly fixing pipelines.

2. The pumped storage power plant construction air and water pipeline E-shaped support of claim 1, characterized in that, The anchoring assembly includes at least two reinforcing bars embedded in the tunnel sidewall, and a connector for fixing the vertical main beam to the reinforcing bars.

3. The pumped storage power plant construction air and water pipeline E-shaped support of claim 2, characterized in that, The connector is a circumferential weld that connects the vertical main beam to the end of the rebar.

4. The pumped storage power plant construction wind and water pipeline E-shaped support of claim 1, characterized in that, There are four horizontal support arms, each used to support different types of pipes.

5. The pumped storage power plant construction wind water pipeline E-shaped support of claim 1, characterized in that, The connection between the horizontal support arm and the vertical main beam is provided with reinforcing ribs.

6. The E-type support for water, electricity, and ventilation pipelines in the construction of a pumped storage power station building according to claim 1, characterized in that, The E-type integrated main load-bearing frame is made of channel steel.

7. The E-type support for water, electricity, and ventilation pipelines in the construction of a pumped storage power station building according to claim 1, characterized in that, The pipeline support assembly includes a U-shaped pipe clamp.

8. The E-type support for water, electricity, and ventilation pipelines in the construction of a pumped storage power station building according to claim 7, characterized in that, The U-shaped pipe clamp is provided with a vibration-damping elastic pad on the inside.

9. The E-type support for water, electricity, and ventilation pipelines in the construction of a pumped storage power station building according to claim 8, characterized in that, The material of the vibration-damping elastic pad is rubber or polyurethane.

10. The E-type support for water, electricity, and ventilation pipelines in the construction of a pumped storage power station building according to claim 1, characterized in that, The free end of the lateral support arm is bent upward to form a limiting stop to prevent the pipe from rolling off.

Images