Urban sewage interception main pipe structure

Abstract

The utility model relates to an urban sewage interception main pipe structure which comprises a rubble concrete foundation arranged along the outer side of a river levee, a sewage interception main pipe is installed on the top of the rubble concrete foundation, an anti-seepage concrete full-wrapping protection layer is arranged around the sewage interception main pipe, and a waterproof roll layer is wrapped on the outer side of the anti-seepage concrete full-wrapping protection layer. An anti-impact concrete layer is further arranged on the outer side of the waterproof coiled material layer, and access holes are further formed in the top of the sewage intercepting main pipe at intervals. The sewage interception main pipe structure can be arranged in a river channel, excavation construction in an urban area is avoided, demolition of urban residents is avoided, coordination difficulty is reduced, and engineering propulsion can be accelerated during construction.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment technology, specifically to a structure for urban intercepting sewer trunk lines. Background Technology

[0002] Sewer interceptor mains are typically laid along the outer edge of riverbanks to facilitate branch pipe connections and expand the sewage collection range. However, for rivers flowing through old urban areas, existing buildings on both sides are situated along the river, leaving no space for laying sewer interceptor mains. This would result in high demolition costs, significant coordination difficulties, and delays in construction. Therefore, laying sewer interceptor mains within the river channel would have poor aesthetics and pose a risk of future damage and sewage overflow. Utility Model Content

[0003] The purpose of this utility model is to provide a structure for urban sewage interception trunk pipes to solve the problems of insufficient space for laying main pipes in urban areas and the difficulty of excavation and construction.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A type of urban sewage interception trunk line structure includes a rubble concrete foundation set along the outer side of a river embankment, a sewage interception trunk line installed on top of the rubble concrete foundation, a waterproof concrete full-coverage protective layer around the sewage interception trunk line, a waterproof membrane layer covering the outer side of the waterproof membrane layer, an impact-resistant concrete layer covering the outer side of the waterproof membrane layer, and inspection ports spaced apart on the top of the sewage interception trunk line.

[0006] Preferably, the impermeable concrete full-coverage protective layer has a concrete baffle on the edge away from the riverbank, and a filter layer is provided on the top of the impermeable concrete full-coverage protective layer; the concrete baffle has sand washing drainage holes spaced apart within the height of the filter layer, and a rainwater overflow hole is provided above the sand washing drainage holes.

[0007] Preferably, a pedestrian walkway is provided on the upper part of the impermeable concrete full-coverage protective layer.

[0008] Preferably, the pedestrian walkway includes steel columns fixedly connected to the impermeable concrete protective layer, walkway slabs fixedly connected to the top of the steel columns, and railings provided on the outer side of the walkway slabs.

[0009] Preferably, the rainwater inlet of the river embankment is directed to the filter layer through a rainwater collection pipe.

[0010] Preferably, the filter layer is made of sand and gravel.

[0011] Preferably, the filter layer is made of sand and soil, and climbing plants are also planted in the filter layer.

[0012] Preferably, the inspection port is made of steel tee.

[0013] Preferably, the top of the steel tee is sealed by a flange.

[0014] Preferably, a waterstop is also provided at the joint of the impermeable concrete full-coverage protective layer.

[0015] Compared with the prior art, the technical solution of this application has the following technical effects:

[0016] 1. The intercepting sewer structure designed in this utility model can be laid in the river channel, avoiding excavation and construction in urban areas, avoiding the relocation of urban residents, reducing coordination difficulties, and accelerating the progress of the project during construction.

[0017] 2. The intercepting sewer structure designed in this utility model adopts an encapsulated structure to avoid river erosion and ensure overall anti-buoyancy stability; by setting up an inspection port, it is normally sealed with a flange to prevent sewage overflow, and the flange can be opened for maintenance, making maintenance convenient. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a top view of the intercepting sewer pipe in this utility model.

[0021] Figure 3 This is a schematic diagram of the steel tee in this utility model.

[0022] Figure 4 for Figure 1 Enlarged structural diagram of section A in the middle.

[0023] In the diagram: 1. River embankment; 2. Interceptor sewer; 3. Rubble concrete foundation; 4. Waterproof membrane layer; 5. Impermeable concrete full-coverage protective layer; 6. Drainage hole; 7. Rainwater overflow hole; 8. Filter layer; 9. Vegetated water storage layer; 10. Steel column; 11. Walkway slab; 12. Railing; 13. Rainwater inlet; 14. Rainwater collection pipe; 15. Climbing plants; 16. Inspection port; 17. Waterstop; 18. Steel tee; 19. Flange. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] It should be noted that in the description of this utility model, the outer side of the riverbank refers to the side along the riverbank and close to the river water, that is, the outer side of the urban area.

[0026] As a preferred embodiment of this utility model, see attached... Figures 1-4 As shown: This embodiment provides a structure for an urban sewage interception trunk line, including a rubble concrete foundation 3 set along the outer side of the river embankment 1, a sewage interception trunk line 2 installed on the top of the rubble concrete foundation 3, a waterproof concrete full-coverage protective layer 5 set around the sewage interception trunk line 3, a waterproof membrane layer 4 wrapped on the outside of the waterproof membrane layer 5, an impact-resistant concrete layer also set on the outside of the waterproof membrane layer 4, and an inspection port 16 is also provided at intervals on the top of the sewage interception trunk line 3.

[0027] The above embodiments make full use of the longitudinal space of the river channel to achieve a three-dimensional layout of sewage interception, pedestrian walkways, and initial rainwater treatment, thus saving land resources.

[0028] As a preferred embodiment, based on the above embodiments, such as Figure 4 As shown, the impermeable concrete full-coverage protective layer 5 has a concrete baffle on the edge away from the riverbank 1, and a filter layer 8 is provided on the top of the impermeable concrete full-coverage protective layer 5; the concrete baffle has sand washing drainage holes 6 at intervals within the height of the filter layer 8, and a rainwater overflow hole 7 is provided above the sand washing drainage holes 6. In this embodiment, the area formed by the concrete baffle and the filter layer 8 constitutes the vegetation water storage layer 9. When water is collected, the vegetation water storage layer 9 is completed.

[0029] The above embodiments essentially design an initial rainwater treatment system. By installing the initial rainwater treatment system at the top of the intercepting sewer, the initial rainwater can be ecologically treated, reducing the pollution load of the initial rainwater and improving the water quality of the river.

[0030] In some preferred embodiments, a walkway is provided on top of the impermeable concrete full-coverage protective layer 5. This embodiment provides a walkway at the top of the intercepting sewer, offering a water-friendly space and demonstrating the practical value of the project.

[0031] In some preferred embodiments, such as Figure 4As shown, the pedestrian walkway includes steel columns 10 fixedly connected to the impermeable concrete full-coverage protective layer 5. A walkway slab 11 is fixedly connected to the top of the steel columns 10, and railings 12 are installed on the outer side of the walkway slab 11. The pedestrian walkway designed in this embodiment can conceal the sewage interception pipe enclosure structure, improving the aesthetics of the project.

[0032] In the above embodiments, such as Figure 4 As shown, in order to prevent excessive scouring of the filter layer by rainwater from the rainwater inlet 13, in this embodiment, the rainwater from the riverbank 1 1 is diverted to the filter layer 8 through the rainwater collection pipe 14. Preferably, the outlet of the rainwater collection pipe 13 is buried in sand and gravel to reduce the noise of rainwater collection and prevent scouring.

[0033] In some preferred embodiments, considering the better filtration of initial rainwater and the interception of debris that may appear in the rainwater to avoid pollution of the river, the filter layer 8 in this embodiment is made of sand and gravel. This can fully filter the initial rainwater and prevent urban rainwater garbage such as paper scraps and leaves from entering the river.

[0034] In some preferred embodiments, such as Figure 4 As shown, the filter layer 8 is made of sand and soil, and climbing plants 15 are also planted in the filter layer 8.

[0035] In the above embodiments, by planting climbing plants to shield the vertical rainwater collection pipes, the overall landscape effect is improved, and the impact of laying intercepting sewer pipes in the river channel on the river landscape is reduced, which is eco-friendly.

[0036] In some preferred embodiments, to facilitate construction and reduce construction costs, the inspection port 16 in this embodiment is made of steel tees. As a standard pipe fitting, the steel tees can be directly purchased and welded for installation, improving construction efficiency while ensuring the aesthetics and consistency of each inspection port 16. The spacing between inspection ports 16 should be 30-100 meters.

[0037] In the above embodiments, such as Figure 4 As shown, the top of the steel tee is sealed by flange 19.

[0038] In some preferred embodiments, a waterstop 17 is also provided at the joint of the impermeable concrete full-coverage protective layer 5.

[0039] When implementing this, the following steps can be followed:

[0040] 1. The intercepting sewer is laid along the river channel. The pipe is made of welded steel pipe. Inspection ports are set at intervals, such as 40m. The inspection ports are made of steel tees and are connected to the intercepting sewer by welding. The top is sealed with a flange. It is closed under normal circumstances and opened during maintenance.

[0041] 2. The intercepting sewer is fully protected with C30 impermeable concrete, with steel waterstops installed at intervals and waterproof membrane wrapped around it. The outside of the waterproof membrane is protected with brickwork, and the bottom is supported by rubble concrete foundation.

[0042] 3. The top of the interceptor sewer is enclosed to set up an initial rainwater treatment area and a pedestrian walkway.

[0043] IV. The initial rainwater treatment area consists of a filter layer, a vegetation water storage layer, sand washing drainage holes, rainwater overflow holes, rainwater collection pipes, and climbing plants. In the early stages of rainfall, the existing rainwater inlets on the riverbank discharge into the vegetation water storage layer 9 through vertical rainwater collection pipes. Through the adsorption of vegetation roots and the filtration of the filter layer, the rainwater is purified and discharged into the river through the drainage holes, reducing the initial rainwater effect. In the middle and later stages of rainfall, the rainwater pollution effect decreases, and the rainwater is discharged into the river through the top rainwater overflow outlet. By planting climbing plants, the vertical rainwater collection pipes are covered, improving the landscape effect.

[0044] 5. The pedestrian walkway consists of steel columns, walkway slabs, and railings; the steel columns can extend into the riverbed, and the walkway slabs are designed to be paved with anti-slip bricks.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A structure for a municipal sewer trunk, characterized by: It includes the piece stone concrete foundation (3) which is arranged outside the river embankment (1), the top of the piece stone concrete foundation (3) is installed the sewage trunk (2), the periphery of the sewage trunk (2) is provided with the anti-permeable concrete full package protective layer (5), the outside of the anti-permeable concrete full package protective layer (5) is covered with the waterproof roll material layer (4), the outside of the waterproof roll material layer (4) is also provided with the anti-impact concrete layer, the top of the sewage trunk (2) is also provided with the inspection port (16) at intervals.

2. A structure of a municipal sewer according to claim 1, characterized in that: The anti-permeable concrete full package protective layer (5) is provided with the concrete baffle at the edge of the side away from the river embankment (1), the top of the anti-permeable concrete full package protective layer (5) is provided with the filter layer (8), the concrete baffle is provided with the sand washing drainage hole (6) at intervals in the height of the filter layer (8), the rainwater overflow hole (7) is formed in the upper portion of the sand washing drainage hole (6).

3. A structure of urban sewer according to claim 1, characterized in that: The upper portion of the anti-permeable concrete full package protective layer (5) is provided with the pedestrian walkway.

4. A structure for a municipal sewer according to claim 3, wherein: The pedestrian walkway includes the steel stand column (10) which is fixedly connected with the anti-permeable concrete full package protective layer (5), the top of the steel stand column (10) is fixedly connected with the walkway plate (11), the outside of the walkway plate (11) is provided with the handrail (12).

5. A structure of a municipal sewer according to claim 2, characterized in that: The rainwater inlet (13) of the river embankment (1) is drained to the filter layer (8) through the rainwater collecting pipe (14).

6. A structure for a municipal sewer according to claim 2 or 5, characterised in that: The filter layer (8) is paved by sand and stone.

7. A structure for a municipal sewer according to claim 2 or 5, characterised in that: The filter layer (8) is paved by sand, stone and soil, and the filter layer (8) is also planted with climbing plants (15).

8. A structure of urban sewer according to claim 1, characterized in that: The inspection port (16) is composed of the steel tee joint.

9. A structure for a municipal sewer according to claim 8, characterised in that: The top of the steel tee joint is sealed by the flange plate.

10. A structure of a municipal sewer according to claim 1, characterized in that: The joint of the anti-permeable concrete full package protective layer (5) is also provided with the water stop belt (17).

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