Underground pipeline protection structure for compressed air energy storage power station bypass section

Abstract

The utility model discloses a compressed air energy storage power station roadside section underground pipeline protection structure belongs to novel energy storage technical field of electric power engineering industry, including the protection structure body below the road surface layer and the underground buried pipe of setting in the protection structure body inside, the protection mechanism body includes the top plate, the side plate of support in the both ends of top plate and the bottom plate of setting below the side plate, the top plate is the similar arch structure, the top plate, the side plate and the bottom plate are all reinforced concrete structure, and the reinforced upper portion of side plate is connected the reinforced of top plate, and the reinforced lower portion of side plate is connected the reinforced of bottom plate, the outside of protection structure body is the earth as it is, and the inside of protection structure body is filled between the underground buried pipe and fills the coarse sand, and sets up the coarse sand layer, the utility model can increase the safety of roadside section underground buried pipe, reduce the processing measure investment, accelerate construction progress.

Description

Technical Field

[0001] The utility model relates to the field of novel energy storage technologies in the electric power engineering industry, in particular to an underground pipeline protection structure for a compressed air energy storage power station at a road-crossing section. Background Art

[0002] With the rapid urban expansion and road reconstruction and upgrading, the situations where existing underground pipelines (including UHV cables, gas pipelines, communication pipelines, water supply and drainage pipelines, etc.) intersect with or run parallel to newly-built roads are increasing. Limited by high difficulty in relocation and reconstruction, high cost and long cycle, a large number of pipelines have to be protected in situ. Current engineering practice usually adopts the passive method of "locally reinforcing the road structure": Shallow-buried pipelines: within the range of 0.5-1.5 m above the pipe top, the stiffness of the road structure is improved by thickening the base layer and surface layer or adding a reinforced concrete slab to disperse vehicle loads.

[0003] Deep-buried pipelines: within the range of 0.3-1.0 m below the pipe bottom, a plain concrete or reinforced concrete rigid cushion layer is arranged to reduce differential settlement.

[0004] The above methods have common problems: Unclear load transfer path: the reinforced road structure redistributes vehicle loads, but the additional stress on the pipe top cannot be quantitatively calculated, resulting in a lack of pertinence in design; Structural redundancy and high construction cost: to compensate for calculation uncertainty, excessive thickening or reinforcement is often carried out, leading to material waste and extended construction period; High long-term risk: with the growth of traffic volume, unexpected concentrated stress may occur on the pipe top, causing compression deformation, rupture and leakage of the pipeline and triggering safety accidents; Limited applicability: for soft soil foundations, high water level areas and regions sensitive to differential settlement, the prior art is difficult to meet the requirements of bearing, anti-settlement and waterproof performance at the same time.

[0005] Existing patents have proposed structures such as -shaped buttresses, triangular cavities, abutment-covers and foamed cement lightweight soil encapsulation, which all locally improve stress conditions or construction convenience, but still have the following deficiencies: Most of them adopt prefabricated or cast-in-place concrete structures with large overall weight, which is prone to cause secondary settlement on soft soil foundations; No quantifiable and adjustable load control indicators are provided, and the design is still relatively conservative; It lacks active adjustment means for cooperative stress with the road structure, and is difficult to adapt to future load growth; It does not take "light weight, prefabrication and monitorability" as the system target, and there is still room for improvement in construction efficiency and later maintenance.

[0006] Therefore, there is an urgent need for a new technology for the protection of underground pipelines crossing roads that can "actively unload, precisely control, and assemble in a lightweight manner" to significantly reduce the amount of reinforcement work, shorten the construction period, and significantly improve long-term safety. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a protection structure for underground pipelines in road sections of compressed air energy storage power stations, which can increase the safety of underground buried pipelines in road sections, reduce investment in treatment measures, and speed up construction progress.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A protective structure for underground pipelines in a road section of a compressed air energy storage power station includes a protective structure body installed below the road surface and an underground buried pipe installed inside the protective structure body. The protective structure body includes a top plate, side plates supported at both ends of the top plate, and a bottom plate located below the side plates; the top plate is an arch-shaped structure; the top plate, side plates, and bottom plate are all reinforced concrete structures, the upper part of the steel bars of the side plates is connected to the steel bars of the top plate, and the lower part of the steel bars of the side plates is connected to the steel bars of the bottom plate; the exterior of the protective structure body is undisturbed soil, and the interior of the protective structure body and the underground buried pipe are filled with coarse sand, forming a coarse sand layer.

[0009] A further improvement of this utility model is that the width of the base plate is 5 to 10 times the width of the side plate.

[0010] A further improvement of this utility model is that an expansion joint is provided between the outer side of the side plate and the ordinary road.

[0011] A further improvement of this utility model is that the width of the expansion joint is 20-30mm.

[0012] A further improvement of this utility model is that a bonding surface layer is provided above the top plate of the protective mechanism body.

[0013] A further improvement of this utility model is that the bonding surface layer and the protective mechanism body are prefabricated integrated structures.

[0014] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows: 1. The top plate of the underground pipeline protection structure in the road section of this utility model adopts an arch-shaped structure. By utilizing the special force transmission characteristics of the arch structure, the thickness of the top plate structure is reduced, making the protection structure more applicable. It can be used for both deep and shallow underground pipelines, while reducing construction investment.

[0015] 2. In this utility model, the base plate of the underground pipeline protection structure for road crossings adopts a large footprint shape, which increases the contact area with the underlying foundation, reduces the stress value of the contact surface between the base plate and the foundation, and thus reduces the settlement value of the protection structure, making the protection structure more reliable.

[0016] 3. In this utility model, the underground pipeline protection structure and the overlying road surface layer of the road section adopt factory prefabricated components, which avoids on-site casting construction, effectively reduces the interference with the surrounding environment, protects the environment, effectively ensures the production quality of the protection structure, effectively speeds up the construction speed, and effectively reduces the construction cost.

[0017] 4. During the on-site construction and installation of the underground pipeline protection structure in the road section of this utility model, structural expansion joints are set at each layer of the ordinary road to avoid the settlement difference caused by different structural forms, thus making the protection structure more reliable.

[0018] 5. In this utility model, coarse sand is filled between the protective structure and the underground pipeline, which effectively releases the stress caused by structural settlement and avoids the underground buried pipe being squeezed and damaged.

[0019] 6. Compared with the traditional method of partially reinforcing the road base, this utility model has a simple construction principle, wide application range, convenient use of prefabricated components, low construction cost, fast construction speed, and high reliability in protecting underground pipelines. Attached Figure Description

[0020] Figure 1 This utility model relates to the underground pipeline protection structure for the compressed air energy storage power station crossing the road section. Among them, 1. Top slab, 2. Side slab, 3. Bottom slab, 4. Reinforcing steel, 5. Expansion joint, 6. Bonding surface layer, 7. Road surface layer, 8. Coarse sand layer, 9. Underground buried pipe, 10. Original soil. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments: In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] like Figure 1As shown, a protective structure for underground pipelines in a road section of a compressed air energy storage power station includes a protective structure body installed below the road surface layer 7 and an underground buried pipe 9 installed inside the protective structure body. The protective mechanism body includes a top plate 1, side plates 2 supported at both ends of the top plate 1, and a bottom plate 3 located below the side plates 2. The top plate 1 has an arch-like structure. Utilizing the special force transmission properties of an arch structure, this construction reduces the stress value of the road load transmitted to the top plate 1 of the protective structure, thereby reducing the thickness of the top plate 1. This is suitable for situations where the buried pipe 9 is shallow in road crossing sections. The width of the bottom plate 3 is 5 to 10 times the width of the side plates 2, increasing the contact area with the underlying foundation and reducing the stress value at the contact surface between the bottom plate 3 and the foundation, thereby reducing the settlement value of the protective structure. The top plate 1, side plates 2, and bottom plate 3 are all reinforced concrete structures. The upper part of the reinforcing bars 4 of the side plates 2 is connected to the reinforcing bars 4 of the top plate 1, and the lower part of the reinforcing bars 4 of the side plates 2 is connected to the reinforcing bars 4 of the bottom plate 3, which can effectively transmit the vertical load of the upper road to the bottom plate 3.

[0023] A bonding layer 6 can be added above the top plate 1 of the protection mechanism body, according to the conventional power station road construction method. The bonding layer 6 can be prefabricated in the factory together with the protection structure to form an integrated structural mode, avoiding on-site casting construction. The integrated structural mode design concept of factory prefabrication can ensure the manufacturing quality of the protection structure components, reduce construction costs, save project investment, and speed up the construction progress.

[0024] During on-site construction and installation of this protective structural component, structural expansion joints 5 should be set at each level of the ordinary road. The width of the expansion joint 5 should be 20-30mm to avoid damage to underground pipelines caused by differential settlement due to different structural forms.

[0025] The exterior of the protective structure is filled with undisturbed soil 10, while the interior, between it and the underground pipeline, is filled with coarse sand 8. This coarse sand layer effectively releases the stress caused by structural settlement, preventing the underground buried pipe 9 from being squeezed and damaged. This makes the protective structure more reliable.

[0026] In summary, this utility model effectively protects underground pipes by employing the aforementioned protective structure. It reduces the thickness of the top slab structure by utilizing the special force transmission characteristics of the arch structure, reduces the settlement value of the protective structure by using the large footprint-shaped bottom slab, ensures the manufacturing quality of the protective structure by using factory-prefabricated components, avoids settlement differences caused by different structural forms by setting structural expansion joints at each layer of ordinary roads, and fills the space between the protective structure and the underground pipeline with coarse sand to release stress.

Claims

1. A protection structure for underground pipelines crossing a road section of a compressed air energy storage power station, characterized in that: Includes the protective structure body set below the road surface layer and the underground buried pipe set inside the protective structure body (9); The protective structure body includes a top plate (1), side plates (2) supported at both ends of the top plate (1), and a bottom plate (3) set below the side plates (2); the top plate (1) is an arch-shaped structure; the top plate (1), side plates (2) and bottom plate (3) are all reinforced concrete structures (4), the upper part of the steel bars (4) of the side plates (2) is connected to the steel bars (4) of the top plate (1), and the lower part of the steel bars (4) of the side plates (2) is connected to the steel bars (4) of the bottom plate (3); the exterior of the protective structure body is undisturbed soil (10), and the interior of the protective structure body and the underground buried pipe (9) are filled with coarse sand, and a coarse sand layer (8) is set.

2. The underground pipeline protection structure for a compressed air energy storage power station crossing a road section according to claim 1, characterized in that: The width of the base plate (3) is 5 to 10 times the width of the side plate (2).

3. The underground pipeline protection structure for a compressed air energy storage power station crossing a road section according to claim 1, characterized in that: An expansion joint (5) is provided on the outer side of the side plate (2) between it and the ordinary road.

4. The underground pipeline protection structure for a compressed air energy storage power station crossing a road section according to claim 3, characterized in that: The width of the expansion joint (5) is 20-30 mm.

5. The underground pipeline protection structure for a compressed air energy storage power station crossing a road section according to claim 1, characterized in that: A bonding layer (6) is provided above the top plate (1) of the protective structure body.

6. The underground pipeline protection structure for a compressed air energy storage power station crossing a road section according to claim 5, characterized in that: The bonding layer (6) and the protective structure body are prefabricated integrated structures.

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