A combined culvert cleaning and sewage diversion transformation structure and method

Abstract

The present invention relates to the technical field of municipal drainage engineering, and specifically to a combined underground channel sewage diversion transformation structure and method, including an underground channel section, an upstream open spring section and a downstream open spring section connected; the underground channel section includes an underground channel body, and the underground channel body has an existing sewage direct discharge outlet; it also includes a rainwater pipe, a sewage pipe and a municipal sewage well, the rainwater pipe is arranged in the underground channel body, and the two ends of the rainwater pipe extend to the upstream open spring section and the downstream open spring section respectively; the two ends of the underground channel body are respectively closed by plain concrete, and the two ends of the rainwater pipe are respectively fixed by plain concrete; the underground channel body is connected to the municipal sewage well through the sewage pipe. The present invention transforms the existing combined underground channel into a closed sewage channel and connects it to the municipal sewage well, and arranges a rainwater pipe in the underground channel body to connect the upstream and downstream open springs to form a rainwater channel. It not only has a simple structure and a short construction period, but also has a good sewage interception effect, and is suitable for areas where it is difficult to intercept sewage, especially for conditions where the underground channel is pressed by houses and has a small cross-sectional size.

Description

Technical Field

[0001] The invention relates to the technical field of municipal drainage engineering, and in particular to a combined underground canal sewage diversion and reconstruction structure and method. Background Art

[0002] With the development of cities, natural rivers and flood drainage ditches are often artificially covered into culverts. Due to the discharge of rain and sewage from the surrounding areas, sewage interception gates are installed at the end of the culverts to intercept sewage at the end. The disadvantages of such settings make it easy to form urban waterlogging in the rainy season and cause repeated water quality fluctuations in rivers, which has become a major problem in water management. During the implementation of the sewage diversion and diversion transformation of combined culverts, some culverts are pressed by houses, and the sewage outlets of houses are directly discharged into the culverts. When the cross-sectional size of the culvert is small, it is difficult for construction workers to enter the culvert for construction work due to the limitation of the cross-sectional size of the culvert, and it is difficult to use hanging pipes and buried pipes in the culvert to intercept sewage. Summary of the invention

[0003] The purpose of the present invention is to provide a combined culvert cleaning and sewage diversion modification structure and method, which can solve the problem that the existing culvert is pressed by buildings, the sewage outlets of the buildings directly discharge into the culvert and the cross-sectional size of the culvert is small and it is difficult to perform cleaning and sewage diversion.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is a combined underground channel cleaning and sewage diversion transformation structure, including an underground channel section, and an upstream open spring section and a downstream open spring section respectively connected to the two ends of the underground channel section; the underground channel section includes an underground channel body, and the underground channel body has an existing sewage direct discharge outlet; it also includes a rainwater pipe, a sewage pipe and a municipal sewage well, the rainwater pipe is arranged in the underground channel body, and the two ends of the rainwater pipe extend to the upstream open spring section and the downstream open spring section respectively; the two ends of the underground channel body are respectively closed by plain concrete, and the two ends of the rainwater pipe are respectively fixed by the plain concrete; the underground channel body is connected to the municipal sewage well through a sewage pipe.

[0005] Furthermore, the rainwater pipe is arranged at the bottom of the culvert body and has a certain slope.

[0006] Furthermore, the length of the rainwater pipe is less than or equal to 50m.

[0007] Furthermore, a sewage well is provided on at least one side of the downstream open spring section, the culvert body is connected with the sewage well through a sewage pipe, and the sewage well is connected with the municipal sewage well through a sewage pipe.

[0008] Furthermore, the bottom elevation of the sewage pipe is lower than or equal to the bottom elevation of the culvert body.

[0009] Furthermore, both the streamside sewage well and the municipal sewage well are provided with manhole covers.

[0010] Furthermore, the rainwater pipe and the sewage pipe are both made of corrosion-resistant high-strength plastic pipes.

[0011] The present invention also provides a combined culvert cleaning and diversion transformation method, comprising the following steps:

[0012] S1. Build temporary cofferdams upstream and downstream of the culvert section that is pressed by the buildings, and drain the water between the temporary cofferdams;

[0013] S2. Place the rainwater pipe in the culvert by pulling or dragging. Both ends of the rainwater pipe extend out of the culvert and are pre-fixed in position.

[0014] S3. Extend one end of the sewage pipe from the downstream open section into the body of the culvert and fix it in place, and connect the other end to the municipal sewage well;

[0015] S4. Use plain concrete to seal both ends of the culvert body, and fix both ends of the rainwater pipe and one end of the sewage pipe;

[0016] S5. Remove the temporary cofferdam.

[0017] Furthermore, in step S3, a sewage well is built at the downstream open stream section between the temporary cofferdams, and the other end of the sewage pipe is connected to the sewage well at the stream side, and then the sewage well at the stream side is connected to the municipal sewage well.

[0018] Furthermore, the sewage well near the stream adopts a reinforced concrete structure.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention transforms the existing combined culvert into a closed sewage channel and connects it to the municipal sewage well. A rainwater pipe is arranged in the culvert body to connect the upstream and downstream open springs to form a rainwater channel, and both ends of the rainwater pipe are fixed by plain concrete. It not only has a simple structure and a short construction period, but also has a good sewage interception effect. It is suitable for areas where sewage is difficult to intercept, especially for conditions where the culvert is pressed by houses and has a small cross-sectional size. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A plan view of a combined culvert cleaning and sewage diversion transformation structure provided by an embodiment of the present invention;

[0024] Figure 2 for Figure 1 BB chart;

[0025] Figure 3 for Figure 1 AA map;

[0026] In the figure: 1. Existing sewage direct discharge outlet, 2. Sewage channel in the culvert, 3. Sewage pipe, 4. Sewage well at the edge of the stream, 5. Municipal sewage well, 6. Plain concrete, 7. Rainwater pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0030] like Figure 1-Figure 3As shown, this embodiment provides a combined underground channel sewage diversion reconstruction structure, including an underground channel section, and an upstream open spring section and a downstream open spring section respectively connected to the two ends of the underground channel section; the underground channel section includes an underground channel body, and the underground channel body has an existing sewage direct discharge outlet 1; it also includes a rainwater pipe 7, a sewage pipe 3 and a municipal sewage well 5, the rainwater pipe 7 is arranged in the underground channel body, and the two ends of the rainwater pipe 7 are respectively extended to the upstream open spring section and the downstream open spring section; the two ends of the underground channel body are respectively closed by plain concrete 6, and the two ends of the rainwater pipe 7 are respectively fixed by the plain concrete 6; the underground channel body is a sewage channel 2 in the underground channel, and the sewage channel 2 in the underground channel is connected with the municipal sewage well 5 through the sewage pipe 3.

[0031] In this embodiment, the existing combined culvert is transformed into a closed sewage channel, and the sewage channel is connected to the municipal sewage well. A rainwater pipe 7 is arranged in the culvert body to connect the upstream and downstream open wells to form a rainwater channel.

[0032] Rainwater channel: The starting and ending points of the rainwater pipe 7 are fixed by plain concrete 6 at both ends of the culvert body. The rainwater from the upstream open section enters the rainwater pipe 7 at the starting point of the culvert, flows through the rainwater pipe 7 in the culvert to the end of the culvert, and then is discharged to the downstream open section.

[0033] Sewage channel: House sewage enters the sewage channel 2 in the culvert through the existing sewage direct discharge port 1, and the sewage flows into the sewage pipe 3 at the end of the culvert, which is connected to the municipal sewage well 5. The culvert body also adopts reinforced concrete structure to prevent sewage from seeping into the ground, and also prevent groundwater from seeping into the ground.

[0034] The structure of this embodiment is not only simple in structure, good in sewage interception effect and concise in appearance, but also does not involve connection to pollution sources and does not require construction workers to enter the culvert for construction. It is suitable for areas where sewage interception is difficult, especially under conditions where the culvert is pressed by houses and has a small cross-sectional size.

[0035] Optimally, the rainwater pipe 7 is arranged at the bottom of the culvert body and fixed by plain concrete 6, and has a certain slope to meet the non-silting flow rate. Furthermore, the length of the rainwater pipe 7 should be less than or equal to 50m to avoid the pipe being too long and inconvenient to repair. The rainwater pipe 7 can be placed in the culvert body by traction or dragging.

[0036] The above embodiment is optimized, at least one side of the downstream open stream section is provided with a sewage well 4 at the edge of the stream, the culvert body is connected with the sewage well 4 at the edge of the stream through a sewage pipe 3, and the sewage well 4 at the edge of the stream is connected with the municipal sewage well 5 through the sewage pipe 3. Furthermore, the bottom elevation of the sewage pipe 3 is lower than or equal to the bottom elevation of the culvert body, so that the sewage in the sewage channel 2 in the culvert can automatically flow into the sewage pipe 3 under the action of gravity.

[0037] Furthermore, the sluice gate sewage well 4 and the municipal sewage well 5 are both provided with manhole covers to cover the sewage wells and prevent people or objects from falling. The materials of the manhole covers include but are not limited to cast iron, concrete, resin, etc., and a nameplate should be provided on the manhole cover to indicate the name of the drainage unit and the nature of the sewage. The sluice gate sewage well 4 and the municipal sewage well 5 can refer to the "Reinforced Concrete and Brick Drainage Inspection Wells" (20S515).

[0038] In this embodiment, the diameters of the rainwater pipe 7 and the sewage pipe 3 should be obtained through calculation, the diameter of the sewage pipe 3 should meet the sewage discharge requirements, and the diameter of the rainwater pipe 7 should meet the upstream rainwater discharge requirements; optimally, the rainwater pipe 7 and the sewage pipe 3 both adopt corrosion-resistant high-strength plastic pipes to prevent sewage from seeping out, and at the same time, the rainwater pipe 7 and the sewage pipe 3 need to ensure a certain slope to meet the non-silting flow rate.

[0039] like Figure 1-Figure 3 As shown, this embodiment also provides a combined culvert cleaning and sewage diversion transformation method, including the following steps:

[0040] S1. Build temporary cofferdams upstream and downstream of the culvert section that is pressed by buildings, and drain the water between the temporary cofferdams to ensure dry water operations;

[0041] S2. Place the rainwater pipe 7 in the culvert body by pulling or dragging, and both ends of the rainwater pipe 7 extend out of the culvert body and are pre-fixed in position;

[0042] S3, one end of the sewage pipe 3 is extended from the downstream open section to the body of the culvert and fixed in position, and the other end is connected to the municipal sewage well 5;

[0043] S4, use plain concrete 6 to seal both ends of the culvert body, and fix both ends of the rainwater pipe 7 and one end of the sewage pipe 3;

[0044] S5. Remove the temporary cofferdam.

[0045] The construction method of this embodiment is simple, the cycle is short, and it does not involve confined space operations. It is particularly suitable for conditions where the culvert is pressed by houses and has a small cross-sectional size. The rainwater from the upstream open stream section is directly discharged to the downstream open stream section through the rainwater pipe 7 in the culvert section, and the house sewage enters the sewage channel 2 in the culvert through the existing sewage direct discharge outlet 1 and is discharged to the municipal sewage well 5 through the sewage pipe 3, with a good sewage interception effect.

[0046] Furthermore, in step S3, a sewage well 4 is built at the downstream open section between the temporary cofferdams, and the other end of the sewage pipe 3 is connected to the sewage well 4, and then the sewage well 4 is connected to the municipal sewage well 5. The sewage well 4 is made of reinforced concrete to prevent sewage from seeping out of the sewage well and prevent river water from seeping in.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined underground channel cleaning and sewage diversion reconstruction structure, comprising an underground channel section, and an upstream open flow section and a downstream open flow section respectively connected to both ends of the underground channel section; the underground channel section comprises an underground channel body, and the underground channel body has an existing sewage direct discharge outlet; characterized in that: It also includes a rainwater pipe, a sewage pipe and a municipal sewage well. The rainwater pipe is arranged in the culvert body, and the two ends of the rainwater pipe extend to the upstream open flow section and the downstream open flow section respectively; the two ends of the culvert body are respectively closed by plain concrete, and the two ends of the rainwater pipe are respectively fixed by the plain concrete; the culvert body is connected with the municipal sewage well through a sewage pipe.

2. The combined culvert cleaning and sewage diversion transformation structure according to claim 1 is characterized in that: The rainwater pipe is arranged at the bottom of the culvert body and has a certain slope.

3. The combined culvert cleaning and sewage diversion transformation structure according to claim 1 is characterized in that: The length of the rainwater pipe is less than or equal to 50m.

4. The combined culvert cleaning and sewage diversion transformation structure according to claim 1 is characterized in that: A sewage well is provided at least on one side of the downstream open spring section. The culvert body is connected to the sewage well via a sewage pipe, and the sewage well is connected to the municipal sewage well via a sewage pipe.

5. The combined culvert cleaning and sewage diversion transformation structure according to claim 4 is characterized in that: The bottom elevation of the sewage pipe is lower than or equal to the bottom elevation of the culvert body.

6. The combined culvert cleaning and sewage diversion reconstruction structure according to claim 4 is characterized in that: The described sewage well by the river and the described municipal sewage well are both provided with well covers.

7. The combined culvert cleaning and sewage diversion reconstruction structure according to claim 1 is characterized in that: The rainwater pipe and the sewage pipe are both made of corrosion-resistant high-strength plastic pipes.

8. A combined culvert cleaning and sewage diversion transformation method, characterized in that: The steps include: S1. Build temporary cofferdams upstream and downstream of the culvert section that is pressed by the buildings, and drain the water between the temporary cofferdams; S2. Place the rainwater pipe in the culvert by pulling or dragging. Both ends of the rainwater pipe extend out of the culvert and are pre-fixed in position. S3. Extend one end of the sewage pipe from the downstream open section into the body of the culvert and fix it in place, and connect the other end to the municipal sewage well; S4. Use plain concrete to seal both ends of the culvert body, and fix both ends of the rainwater pipe and one end of the sewage pipe; S5. Remove the temporary cofferdam.

9. The combined culvert cleaning and sewage diversion transformation method according to claim 8, characterized in that: In step S3, a sewage well is built at the downstream open stream section between the temporary cofferdams, and the other end of the sewage pipe is connected to the sewage well at the stream side, and then the sewage well at the stream side is connected to the municipal sewage well.

10. The combined culvert cleaning and sewage diversion transformation method according to claim 9, characterized in that: The sewage well at the edge of the stream adopts a reinforced concrete structure.

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