Prefabricated zigzag partial ditch
Through the prefabricated zigzag-shaped groove design, the combination of reinforced concrete and cast iron materials is used to solve the poor drainage effect and driving safety hazards in small vertical slopes of urban roads, and the improvement of longitudinal drainage effect and reduction of construction costs are achieved.
Patent Information
- Application Number
- CN202420702210.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-04-07
AI Technical Summary
In urban roads in flat terrain, traditional zigzag shaped ditches have driving safety risks and the longitudinal drainage effect of the road is not good, especially when the longitudinal slope is less than 0.3%, the encrypted rainwater outlet setting leads to an increase in the number of projects and high cost.
A prefabricated zigzag-shaped zigzag design is adopted, where the zigzag-shaped body is made of reinforced concrete material, with a longitudinal zigzag-shaped inner bottom surface, and a rainwater connection pipe and a rim stone in the concave void are set. The rainwater grate is flush with the road surface, and the zigzag-shaped longitudinal slope is greater than 0.3 %, the rainwater grate is made of cast iron material and is welded and connected, and the splicing seams are made of waterproof coating.
A solution with obvious longitudinal drainage effect on the road, safe and reliable driving, and low engineering cost is achieved. Through the zigzag design, the smooth flow of water flow is promoted, water accumulation and overflow are reduced, road surface obstacles are avoided, construction is simplified and costs are reduced.
Smart Images
Figure CN222362327U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of road drainage, in particular to a prefabricated sawtooth shaped side ditch. Background Art
[0002] In areas with flat terrain, the longitudinal slope of newly built or rebuilt urban roads is generally small. According to the "Urban Road Alignment Design Specifications" (CJJ 193-2012), when the special difficult longitudinal slope is less than 0.3%, a sawtooth ditch should be set or other drainage measures should be taken. Common measures to increase drainage capacity include setting a sawtooth ditch and increasing the number of rainwater outlets.
[0003] According to the "Outdoor Drainage Design Standard" (GB 50014-2021), the distance between rainwater outlets should be 25m to 50m. When the distance between rainwater outlets is increased to 25m, the number of rainwater pipes and inspection wells will increase, and the longitudinal drainage effect of the road will be minimal.
[0004] According to the "Urban Road Pavement Design Code" (CJJ 169-2012), when the longitudinal slope of the road edge line is less than 0.3%, a zigzag ditch can be set within a width of 0.3m on the edge of the road on both sides of the road. The traditional zigzag ditch set within a width of 0.3m on the edge of the road on both sides of the road will pose a driving safety hazard after completion. Utility Model Content
[0005] The utility model aims to provide a drainage structure with safe and reliable driving, obvious longitudinal drainage effect of roads and low engineering cost in view of the deficiencies in the above-mentioned prior art.
[0006] In order to achieve the above purpose, the technical solution of the utility model is:
[0007] A prefabricated sawtooth ditch comprises a ditch body, the inner bottom surface of the ditch body is sawtooth-shaped in the longitudinal direction, a rainwater connecting pipe is arranged at the lowest point of the inner bottom surface of the ditch body, an inner concave gap is arranged above the ditch body, a curb is installed in the inner concave gap, and a rainwater grate is arranged at the water inlet of the ditch body, and the rainwater grate is flush with the road surface.
[0008] Furthermore, the main body of the ditch is prefabricated with reinforced concrete material, the sawtooth longitudinal slope can be determined according to the designed longitudinal slope of the road, and the main body of the ditch can also be used as the base of the curbstone, and its prefabricated length can be determined according to the installation and transportation conditions.
[0009] Furthermore, the inner bottom surface slope of the sawtooth-shaped deflection groove is greater than 0.3%.
[0010] Furthermore, the rain grate is attached to a curbstone, and the curbstone is higher than the plane of the rain grate.
[0011] Furthermore, waterproof coating is provided at the joints between the prefabricated zigzag grooves.
[0012] Furthermore, the rain grate is a long, narrow structure arranged on the upper part of the side ditch body, which is made of cast iron material. The processing length can be determined according to the installation and transportation conditions. It is connected to the side ditch body by welding.
[0013] Furthermore, a waterproof coating is provided at the interface between the ditch body and the rainwater connecting pipe.
[0014] The utility model has the following beneficial effects:
[0015] The longitudinal drainage effect of the road is obvious. The inner bottom surface of the main body of the ditch is serrated in the longitudinal direction. This design increases the power of the water flow in the ditch, making it easier for the water to flow smoothly without accumulating water. The slope of the inner bottom surface of the serrated ditch is greater than 0.3%. Such a slope design helps the water flow to flow naturally with lower resistance, and will not cause problems such as slow flow rate and water accumulation due to the small longitudinal slope of the road surface. Curbs are installed in the concave gap. The above design makes it easier for the water flow to be guided into the ditch, and the height of the curb ensures that the water flow is effectively confined inside the ditch, reducing the possibility of water overflow.
[0016] Driving is safe and reliable. The sawtooth longitudinal slope is transferred to the inside of the ditch body, avoiding the sawtooth longitudinal slope traditionally set at the edge of the road on both sides of the road, thereby eliminating obstacles on the road surface. This design ensures that the vehicle will not be subject to sudden bumps or obstacles during driving, improving the stability and comfort of driving.
[0017] This structure is prefabricated in the factory and assembled on site. The construction is fast, convenient and simple, which not only shortens the construction period but also reduces the construction cost. In this scheme, the spacing between rainwater connecting pipes is large. Compared with denser rainwater outlets to solve the drainage problem of small longitudinal slopes of roads, the number of inspection wells and rainwater connecting pipes is small and the project cost is low. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a cross-sectional schematic diagram of the low point of the sawtooth-shaped longitudinal slope at the bottom of the side ditch main body of the utility model;
[0019] Figure 2 It is a cross-sectional schematic diagram of the high point of the sawtooth-shaped longitudinal slope at the bottom of the side ditch main body of the utility model;
[0020] Figure 3 It is a longitudinal sectional schematic diagram of the utility model;
[0021] Figure 4 It is a plan view of the utility model.
[0022] Numbers in the figure: 1. ditch body; 2. rainwater grate; 3. bottom of ditch body; 4. rainwater connecting pipe; 5. curbstone; 6. road surface; DETAILED DESCRIPTION
[0023] In order to further illustrate the technical means used by the utility model to achieve the predetermined function, the specific structural measures of a new type of prefabricated sawtooth shaped deflection groove proposed by the utility model are described in detail through specific embodiments. The details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the spirit of the utility model.
[0024] See also Figure 1-4 The utility model is a prefabricated sawtooth ditch, which is prefabricated in a processing plant. The main components include: a ditch body 1 and a rain grate 2. The ditch body 1 is prefabricated with reinforced concrete material, and a sawtooth longitudinal slope is set at the bottom, including a low point and a high point. The shape and size of the sawtooth longitudinal slope can be determined according to the designed road longitudinal slope. The prefabricated length of the ditch body 1 can be determined according to the actual installation and transportation conditions, so as to facilitate installation and operation during construction and transportation. The rain grate 2 is a long strip with a narrow width. It is made of cast iron material and is connected to the ditch body 1 by welding to ensure smooth drainage and prevent debris from entering the drainage system. The ditch body 1 also serves as the base of the curb 5. The water inlet of the ditch body 1 is provided with a rain grate 2.
[0025] When the utility model is selected as a road drainage structure with a road longitudinal slope less than 0.3%, the sawtooth longitudinal slope and section at the bottom of the ditch body 1 should be determined according to the designed road longitudinal slope, and then the determined data should be handed over to the processing factory for prefabrication.
[0026] In this embodiment, the ditch body 1 is prefabricated from C35 cement concrete.
[0027] In this embodiment, the stirrups of the side groove body 1 are selected Welded closed reinforcement, longitudinal reinforcement selection The steel bars and stirrups exposed at the bottom of the rain grate 2 are painted with waterproof coating.
[0028] In this embodiment, the joints of the side ditch body 1 are filled with chloroprene rubber asphalt waterproof coating.
[0029] In this embodiment, an interface for the rainwater connecting pipe 4 is reserved at the bottom low point of the ditch body 1, and the interface is sealed with chloroprene rubber asphalt waterproof coating.
[0030] In this embodiment, the rain grate 2 is made of cast iron material and is coated with waterproof paint, and is connected to the side ditch body 1 by welding.
Claims
1. A prefabricated sawtooth shaped deflection groove, characterized in that: The invention comprises a ditch body (1), the inner bottom surface of the ditch body (1) is longitudinally sawtooth-shaped, a rainwater connecting pipe (4) is arranged at the lowest point of the inner bottom surface of the ditch body (1), an inner concave space is arranged above the ditch body (1), a curbstone (5) is installed in the inner concave space, and a rainwater grate (2) is arranged at the water inlet of the ditch body (1), and the rainwater grate (2) is flush with the road surface (6).
2. The prefabricated sawtooth shaped deflection groove according to claim 1, characterized in that: The longitudinal slope of the inner bottom surface of the sawtooth-shaped deflection groove is greater than 0.3%.
3. The prefabricated sawtooth shaped deflection groove according to claim 1, characterized in that: The rainwater grate (2) is attached to a curbstone (5), and the curbstone (5) is higher than the plane of the rainwater grate (2).
4. The prefabricated sawtooth shaped deflection groove according to claim 1, characterized in that: The joints between the prefabricated zigzag grooves are provided with waterproof coating.
5. The prefabricated sawtooth shaped deflection groove according to claim 1, characterized in that: The rainwater grate (2) is connected to the ditch body (1) by welding.
6. The prefabricated sawtooth shaped deflection groove according to claim 1, characterized in that: A waterproof coating is provided at the interface between the ditch body (1) and the rainwater connecting pipe (4).