Rainwater pipe culvert river-entering structure under urban complex embankment environment

Abstract

The utility model relates to the technical field of municipal engineering, in particular to a rainwater pipe culvert river-entering structure under an urban complex embankment environment, which comprises embankments, an overhaul well and a water outlet well, the embankments are arranged on two sides of a river channel, and rainwater pipe culverts are embedded in the embankments; the overhaul well is arranged in the embankment and located at the joint of the embankment and the river channel, and the rainwater pipe culvert is communicated with the upper portion of the overhaul well; the water outlet well is arranged in the river channel, and the water outlet well is communicated with the lower part of the overhaul well through a drainage section; the rainwater pipe culvert is provided with the overhaul well and the water outlet well, the outlet of the rainwater pipe culvert is flexibly adjusted by adjusting the position of the water outlet well under the condition that an original pipeline is not adjusted, meanwhile, the overhaul well has the energy dissipation function, the water flow state can be adjusted, direct scouring of water flow at the outlet to an original embankment foot in the drainage period is avoided, and hiding of an estuary is achieved; and the overall landscape effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal engineering, in particular to a rainwater pipe culvert into a river structure under a complex urban embankment environment. Background Art

[0002] The rainwater culvert (pipe network) is an important part of the municipal drainage project. It collects, diverts and discharges regional rainwater in a centralized manner, playing an important role in urban drainage. The rainwater culvert estuary is the total drainage outlet of the region. It often runs through the river bank slope in a horizontal or vertical direction to collect regional rainwater into the river.

[0003] Urban rivers are mainly located at low points in the region, with traffic roads and scenic trails often laid out on both sides. Rainwater pipe networks, sewage pipe networks, communications, gas pipelines, etc. are often laid on the embankments on both sides of the river, which are important areas where underground pipelines cross. The construction of river-related buildings, embankment reconstruction, and new rainwater culvert outlets will inevitably be affected by the surrounding pipeline network and the elevation is controlled. Therefore, the structure layout of the rainwater culvert outlet needs to adapt to the complex urban environment.

[0004] At present, there are two common methods for rainwater pipes to be inserted into estuaries. One is that the culverts are directly inserted from the vertical bank (such as Figure 1 The second is a sloped embankment, where an eight-shaped wall is set at the outlet of the rainwater culvert to connect with the bank slope (as shown in Figure 2 shown).

[0005] The disadvantages of the above two methods are: ① The rainwater culvert directly passes through the embankment, the landscape effect is poor, and there is a direct scouring effect on the embankment during drainage; ② The splayed wall outlet of the rainwater culvert is seriously hardened, and the integration with the surrounding landscape is poor, breaking the original embankment landscape pattern. ③ The concealment of the rainwater culvert outlet is poor. ④ In the case of the rainwater culvert outlet elevation adjustment working condition, it is necessary to involve the relocation of pipelines in a large range, which has a large impact range and large investment. Utility Model Content

[0006] The technical problem to be solved by the utility model is that the rainwater culvert has a poor landscape effect and will cause a direct impact on the embankment. The purpose is to provide a rainwater culvert into the river structure under the complex embankment environment in the city, which does not involve the relocation of pipelines, does not destroy the original embankment style, saves space, hides the outlet, and meets the requirements of urban river-related engineering construction.

[0007] The utility model is realized by the following technical solutions:

[0008] A rainwater pipe culvert into a river structure in a complex urban embankment environment, comprising:

[0009] Embankments are arranged on both sides of the river channel, and the stormwater culvert is buried in the embankments;

[0010] An inspection well is arranged in the embankment and located at the connection between the embankment and the river channel, and the rainwater culvert is connected to the upper part of the inspection well;

[0011] A water outlet well is arranged in the river channel, and the water outlet well is connected with the lower part of the inspection well through a diversion section.

[0012] Optionally, a cushion layer is provided below the inspection well, the top of the inspection well is connected to the existing ground of the embankment, and the top of the inspection well is provided with an entry hole and a cover plate for closing the entry hole.

[0013] Optionally, a cushion layer is provided under the water outlet well, the horizontal plane at the top of the water outlet well is higher than the existing riverbed of the river channel, and a detachable prefabricated manhole cover is provided on the top of the water outlet well, and the prefabricated manhole cover is provided with drainage holes.

[0014] Preferably, the distance between the top of the water outlet well and the current river bottom is not less than 20 cm, and the diameter of the drainage hole is not less than 10 cm.

[0015] Specifically, the top of the water outlet well is located below the outlet of the rainwater culvert.

[0016] Optionally, the embankment is a vertical embankment or a sloped embankment. When the embankment is a sloped embankment, the water outlet well is arranged at the embankment foot protection structure or in the river channel.

[0017] Specifically, the flood water level condition of the river channel is determined. If the outlet elevation of the rainwater culvert is not higher than the flood water level condition, the outlet of the rainwater culvert is arranged in the inspection well, and a gate is arranged at the outlet of the rainwater culvert;

[0018] When the gate is closed, the drainage section is not connected to the rainwater culvert;

[0019] When the gate is opened, the drainage section is connected to the rainwater culvert.

[0020] Optionally, the stormwater culvert is a circular culvert group, a single-hole box culvert or a multi-hole box culvert, and the circular culvert group includes at least one circular culvert.

[0021] Specifically, the diversion section is arranged below the scouring depth of the river channel.

[0022] Optionally, the drainage section is a circular pipe group, a single-hole concrete box culvert or a multi-hole concrete box culvert, and the circular pipe group includes at least one concrete circular pipe.

[0023] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0024] The utility model is provided with an inspection well and a water outlet well. By adjusting the position of the water outlet well, the outlet of the rainwater culvert can be flexibly adjusted without adjusting the original pipeline. At the same time, the inspection well also has an energy dissipation effect, and can adjust the flow state of the water flow to avoid direct erosion of the original embankment foot by the outlet water flow during drainage, thereby realizing the concealment of the river estuary and improving the overall landscape effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, are used to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention, and the accompanying drawings are included in and constitute a part of this specification and do not constitute a limitation on the embodiments of the present invention.

[0026] Figure 1 This is a traditional structural layout diagram of the current rainwater culvert inlet according to the utility model, and the figure shows a vertical embankment.

[0027] Figure 2 This is a traditional structural layout diagram of the current rainwater culvert inlet according to the utility model, and the figure shows a sloped embankment.

[0028] Figure 3 It is a top view of a rainwater pipe culvert entering a river structure under a complex urban embankment environment according to the utility model, wherein the figure shows a vertical embankment.

[0029] Figure 4 It is a side view of a rainwater pipe culvert entering a river structure under a complex urban embankment environment according to the utility model, and the figure shows a vertical embankment.

[0030] Figure 5 It is a top view of a rainwater pipe culvert entering a river in a complex urban embankment environment according to the utility model, and the figure shows a sloped embankment.

[0031] Figure 6 It is a side view of a rainwater pipe culvert entering a river structure under a complex urban embankment environment according to the utility model, and the figure shows a sloped embankment.

[0032] Figure numbers: 1-rainwater culvert, 2-inspection well, 3-drainage section, 4-pad, 5-outlet well, 6-prefabricated manhole cover, 7-vertical embankment, 8-sloping embankment, 9-existing riverbed, 10-existing ground behind the embankment. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and implementation methods. It is understood that the specific implementation methods described here are only used to explain the relevant content, rather than to limit the utility model.

[0034] It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings.

[0035] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] Embodiment 1

[0039] The complex urban embankment environment refers to the complex environment where the embankments on both sides of the river in the city, in addition to general transportation functions, are equipped with various pipelines such as rainwater, sewage, water supply, and communications, and do not have the conditions for relocation.

[0040] The rainwater culvert 1 refers to a rainwater collection system buried under the ground surface, which collects and drains regional surface rainwater to one place. The rainwater culvert 1 is a circular culvert group, a single-hole box culvert or a multi-hole box culvert, and the circular culvert group includes at least one circular culvert.

[0041] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this embodiment provides a rainwater culvert 1 into the river structure under a complex urban embankment environment, including: an embankment, a maintenance well 2 and a water outlet well 5.

[0042] The embankment is a structure arranged on both sides of the river channel. In this embodiment, the embankment is divided into a vertical embankment 7 and a sloped embankment 8. The rainwater culvert 1 is buried in the embankment; the rainwater culvert 1 realizes urban drainage.

[0043] The inspection well 2 is arranged in the embankment and located at the connection between the embankment and the river channel. The rainwater culvert 1 is connected with the upper part of the inspection well 2. The inspection well 2 is a structure made of concrete, mortar, bricks, gravel and other materials and manufactured in accordance with relevant regulations.

[0044] The water outlet well 5 is arranged in the river channel, and the water outlet well 5 is connected with the lower part of the inspection well 2 through the diversion section 3. In this embodiment, the water in the water outlet well 5 flows from bottom to top. The water outlet well 5 serves as the final outlet of the rainwater culvert 1 and is hidden in the riverbed of the river channel, thereby improving the overall aesthetics.

[0045] The diversion section 3 is used to connect the inspection well 2 and the water outlet well 5. Its structure is set according to the specific situation. It can be composed of a straight pipe section, a curved pipe section, etc., and the water flow direction is determined by the upstream and downstream water level difference. It is a pressure flow section.

[0046] The diversion section 3 is set below the scouring depth of the river channel to reduce the scouring of the water flow in the river channel. The diversion section 3 is a circular pipe group, a single-hole concrete box culvert or a multi-hole concrete box culvert. The circular pipe group includes at least one concrete circular pipe. The specific material is determined according to the site requirements. When buried in the riverbed, it should meet the anti-scouring requirements. The circular pipe made of non-concrete material can be provided with an outer concrete protection.

[0047] In order to increase the stability of the inspection well 2, a cushion layer 4 is arranged below the inspection well 2. The top of the inspection well 2 is connected to the existing ground of the embankment. An entry hole and a cover plate for closing the entry hole are arranged on the top of the inspection well 2. By opening the cover plate and entering the inspection well 2 from the entry hole, the facilities in the inspection well 2 can be inspected.

[0048] Inspection well 2 can be a municipal prefabricated well or a cast-in-place reinforced concrete structure, and its size can be determined according to the rainwater drainage flow and the surrounding site environment. The elevation of inspection well 2 should meet the flood control requirements of the embankment and be smoothly connected to the top of the embankment.

[0049] A cushion layer 4 is provided below the outlet well 5, and the horizontal plane at the top of the outlet well 5 is higher than the current riverbed 9 of the river channel. A detachable prefabricated manhole cover 6 is connected to the top of the outlet well 5, and a drainage hole is provided on the prefabricated manhole cover 6. The distance between the top of the outlet well 5 and the current riverbed 9 is not less than 20 cm, and the diameter of the drainage hole is not less than 10 cm. The top of the outlet well 5 is located below the outlet of the rainwater culvert 1.

[0050] The outlet well 5 is built on the premise of meeting the river flow, not blocking floods, not occupying the flood discharge section of the river, and not affecting the outflow of the culvert. In order to avoid the impact of river scouring and siltation, the outlet well 5 should be 20 to 50 cm above the riverbed. In river sections with high mud content or serious siltation, the top elevation can be greater than 50 cm.

[0051] The prefabricated manhole cover 6 is a prefabricated plate, which is detachable and should be connected and fixed to the outlet well 5 during operation. The spacing and number of drainage holes of the prefabricated manhole cover 6 can be controlled according to the outlet space and the design flow requirements of the rainwater culvert 1.

[0052] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the embankment is a vertical embankment 7 or a sloped embankment 8. When the embankment is a sloped embankment 8, the outlet well 5 is set in the embankment foot protection structure or the river channel. According to different embankment structures, the length and shape of the diversion section 3 can be adjusted to meet the requirements that the inspection well 2 is in the embankment and the outlet well 5 is in the river channel.

[0053] Embodiment 2

[0054] In order to prevent flood water from flowing back into the inspection well 2, the flood water level condition of the river channel is determined. If the outlet elevation of the rainwater culvert 1 is not higher than the flood water level condition, the outlet of the rainwater culvert 1 is set in the inspection well 2, and a gate is set at the outlet of the rainwater culvert (1);

[0055] When the gate is closed, the drainage section 3 is not connected to the rainwater culvert 1 and the manhole; when the gate is opened, the drainage section 3 is connected to the rainwater culvert 1.

[0056] On the basis of the first and second embodiments, the utility model has the following advantages:

[0057] For the rainwater pipe network that also has the function of flood discharge, the inspection well 2 and the outlet well 5 have dual sand settling functions, which can purify the water quality of the water flowing into the river and reduce the impact on the ecological environment of the water on both sides of the river and in the river.

[0058] Inspection well 2 also has the function of energy dissipation and can adjust the flow pattern of water to avoid direct scouring of the original embankment foot by the outlet water flow during drainage.

[0059] The inspection well 2 has a steering function, which can adjust the direction of water flow and avoid river-related buildings or other important buildings under the premise that the pipeline cannot be relocated. The outlet can be arranged according to the actual bank slope and river bottom conditions, with strong adaptability.

[0060] Gates and other equipment can be added to the inspection well 2 to facilitate later operation and management.

[0061] Good visual effect: the adopted technical solution can be perfectly connected with the embankment within the construction scope, and the outlet is set in the riverbed to avoid direct opening of the embankment and maintain the integrity of the original embankment landscape effect.

[0062] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments / methods or examples described in this specification and the features of the different embodiments / methods or examples, unless they are contradictory.

[0063] In addition, 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 at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0064] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above utility model, and these changes or modifications are still within the scope of the present utility model.

Claims

1. A rainwater pipe culvert into a river structure under a complex urban embankment environment, characterized in that: include: Embankments are arranged on both sides of the river channel, and a rainwater culvert (1) is buried in the embankments; A maintenance well (2), which is arranged in the embankment and located at the connection between the embankment and the river channel, and the rainwater culvert (1) is connected to the upper part of the maintenance well (2); A water outlet well (5) is arranged in the river channel, and the water outlet well (5) is connected to the lower part of the inspection well (2) through a diversion section (3).

2. The rainwater pipe culvert into river structure under the complex urban embankment environment according to claim 1 is characterized in that: A cushion layer (4) is arranged below the inspection well (2), the top of the inspection well (2) is connected to the existing ground surface of the embankment, and the top of the inspection well (2) is provided with an entry hole and a cover plate for closing the entry hole.

3. The rainwater pipe culvert into river structure under the complex urban embankment environment according to claim 1, characterized in that: A cushion layer (4) is arranged below the water outlet well (5), the horizontal plane at the top of the water outlet well (5) is higher than the current riverbed (9) of the river channel, and a detachable prefabricated well cover (6) is arranged on the top of the water outlet well (5), and the prefabricated well cover (6) is provided with a drainage hole.

4. The rainwater pipe culvert into river structure under the complex urban embankment environment according to claim 3 is characterized in that: The distance between the top of the water outlet well (5) and the current river bottom (9) is not less than 20 cm, and the diameter of the drainage hole is not less than 10 cm.

5. The rainwater pipe culvert into river structure under the complex urban embankment environment according to claim 1, characterized in that: The top of the water outlet well (5) is located below the outlet of the rainwater culvert (1).

6. The rainwater pipe culvert into river structure under a complex urban embankment environment according to claim 1, characterized in that: The embankment is a vertical embankment (7) or a sloped embankment (8). When the embankment is a sloped embankment (8), the water outlet well (5) is arranged at the embankment foot protection structure or in the river channel.

7. The rainwater pipe culvert into river structure under the complex urban embankment environment according to claim 2, characterized in that: Determine the flood water level condition of the river channel, if the outlet elevation of the rainwater culvert (1) is not higher than the flood water level condition, the outlet of the rainwater culvert (1) is arranged in the inspection well (2), and a gate is arranged at the outlet of the rainwater culvert (1); When the gate is closed, the drainage section (3) is not connected to the rainwater culvert (1); When the gate is opened, the drainage section (3) is connected to the rainwater culvert (1).

8. The rainwater pipe culvert into river structure under a complex urban embankment environment according to claim 1, characterized in that: The rainwater culvert (1) is a circular culvert group, a single-hole box culvert or a multi-hole box culvert, and the circular culvert group includes at least one circular culvert.

9. The rainwater pipe culvert into river structure under a complex urban embankment environment according to claim 1, characterized in that: The diversion section (3) is arranged below the scouring depth of the river channel.

10. The rainwater pipe culvert into river structure under the complex urban embankment environment according to claim 9, characterized in that: The drainage section (3) is a circular pipe group, a single-hole concrete box culvert or a multi-hole concrete box culvert, and the circular pipe group includes at least one concrete circular pipe.

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