Prefabricated assembly type temporary drainage channel for roadbed slope
The design of prefabricated temporary drainage channels solves the problems of long construction period and high cost, achieves the sealing and stability of drainage channels, prevents water leakage and soil collapse, and improves the safety and construction efficiency of roadbed slopes.
Patent Information
- Application Number
- CN202520303644.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing roadbed slope drainage channels have long construction cycles and high costs, and are prone to clogging or cracking during installation, affecting the stability and safety of the roadbed.
A prefabricated temporary drainage channel is designed, which integrates a water guide plate, a receiving unit, a plug-in unit, and a support unit. Combined with mortise and tenon structure and sealing strip, it enhances the connection sealing and support effect, and adjusts the elevation to control the water flow rate.
It effectively prevents water seepage and soil collapse, reduces construction complexity and cost, and improves the stability and safety of drainage channels.
Smart Images

Figure CN223922348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage device technology, and in particular to a prefabricated temporary drainage ditch for roadbed slope. Background Technology
[0002] Roadbed slopes refer to the sloping surfaces on both sides of the roadbed cross-section that connect to the ground. Roadbed slopes play a crucial role in maintaining the strength and stability of the highway roadbed, reducing roadbed defects, and ensuring driving safety. Water is a significant factor leading to slope instability and a major natural factor damaging highway roadbeds and pavements. Rainfall runoff can damage highways and related facilities. The infiltration of water into highway slopes and the rise of capillary water in the soil can cause slopes to soften and weaken, leading to landslides, collapses, or even the entire roadbed slope sliding along its sloping base, severely impacting the safety and stability of the roadbed and pavement.
[0003] Drainage channels are typically designed into roadbed slopes for drainage. There are two common construction methods for these channels. One method involves excavating a trench in the roadbed surface and then pouring concrete to complete the channel structure. The drawbacks of this method are its long construction period, high labor costs, and the increased complexity of the concrete pouring process. Furthermore, when these channels are laid along urban roadbeds, rainfall and road surface watering, especially during short-term heavy rains, cause rainwater to flow rapidly into the channels. While the concrete channels can guide the flow of water, they cannot effectively prevent water from entering the channels. One approach is to use prefabricated drainage channels, which are U-shaped and pre-embedded during the compaction of the roadbed. However, this method has the drawback of high cost, which increases construction costs. In addition, existing prefabricated drainage channels always have gaps between their sides and the ground, which can easily lead to cracking after construction. This can cause rainwater to seep into the area where the drainage channel contacts the soil, and further, cause the area under the drainage channel masonry to collapse or become suspended, seriously threatening the safety of passing vehicles.
[0004] Developing a prefabricated temporary drainage ditch for roadbed slopes that facilitates construction, effectively seals joints, controls the elevation of the bottom surface, and regulates water flow velocity has become a pressing technical challenge for those skilled in the art. Utility Model Content
[0005] The purpose of this invention is to provide a prefabricated temporary drainage ditch for roadbed slopes, which solves the problems listed in the background art.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] This utility model discloses a prefabricated temporary drainage ditch for roadbed slopes, including a drainage ditch body, wherein a water guide plate is fixedly installed at the upper opening of the drainage ditch body.
[0008] A receiving unit is installed at one end of the drainage trough body, and a plug-in unit is installed at the other end of the drainage trough body.
[0009] A support unit is installed on the lower surface of the drainage trough body;
[0010] The water guide plate, the drainage channel body, the receiving unit, the plug-in unit, and the supporting unit are integrally formed.
[0011] Preferably, the connection between the water guide plate and the drainage trough body is arc-shaped.
[0012] Preferably, a water-blocking strip is installed on the lower surface of the free end of the water guide plate.
[0013] Preferably, the receiving unit includes a receiving plate, which is fixedly connected to one end opening of the drainage trough body, and the lower surface of the receiving plate is flush with the lower surface of the water guide plate and the drainage trough body.
[0014] The upper surface of the receiving plate is lower than the upper surface of the drainage trough body and the water guide plate;
[0015] The upper surface of the receiving plate is provided with a snap-fit groove, and a sealing strip is placed in the snap-fit groove.
[0016] Preferably, the plug-in unit includes a plug-in plate, the upper surface of which is flush with the upper surface of the water guide plate and the drain trough body;
[0017] Furthermore, a snap-fit strip is fixedly installed on the lower surface of the plug-in plate.
[0018] Preferably, the snap-fit strip is sealed to the snap-fit groove.
[0019] Preferably, the supporting unit includes a supporting plate, which is fixedly installed on the lower surface of the drainage trough body.
[0020] Preferably, elevation adjustment blocks are spirally installed on both sides of the lower surface of the support plate.
[0021] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0022] This utility model discloses a prefabricated temporary drainage ditch for roadbed slopes. The extended and enlarged water guide plate can effectively support the drainage ditch body and prevent water from intruding into the joint between the drainage ditch body and the soil, causing soil collapse and hollowing. The snap-fit groove and snap-fit strip adopt a mortise and tenon structure connection method, and a sealing strip is installed at the joint to effectively ensure the sealing performance of the connection and prevent water leakage.
[0023] Furthermore, the support plate not only increases the contact area between the water guide plate and the soil, achieving a stable connection between the water guide plate and the soil, but also allows for adjustment of the bottom elevation of the drainage channel body, facilitating construction operations and reducing the accuracy requirements for the foundation elevation of the channel bottom during construction. Attached Figure Description
[0024] The present invention will be further described below with reference to the accompanying drawings.
[0025] Figure 1 This is a three-dimensional schematic diagram of a prefabricated temporary drainage ditch for roadbed slopes according to the present invention. Figure 1 ;
[0026] Figure 2 This is a front view schematic diagram of a prefabricated temporary drainage ditch for roadbed slopes according to this utility model. Figure 2 ;
[0027] Figure 3 This is an enlarged schematic diagram of part A of the present invention;
[0028] Figure 4 This is an enlarged schematic diagram of part B of the present invention.
[0029] Explanation of reference numerals in the attached drawings: 1. Water-blocking strip; 2. Snap-fit groove; 3. Water guide plate; 4. Drainage channel body; 5. Support plate; 6. Support plate; 7. Snap-fit strip; 8. Insert plate. Detailed Implementation
[0030] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0031] like Figure 1-4As shown, a prefabricated temporary drainage ditch for roadbed slope includes a drainage ditch body 4. A water guide plate 3 is fixedly installed at the upper opening of the drainage ditch body 4. The water guide plate 3 extends the opening of the drainage ditch body 4 to prevent water flow from eroding the soil at the drainage ditch body and flushing a large amount of mud and sand into the drainage ditch body, clogging the drainage ditch body. It can also prevent water flow from entering from the upper joint between the drainage ditch body and the soil, causing the soil on the outer wall of the drainage ditch body to collapse and become hollow. In addition, the water guide plate increases the contact area between the drainage ditch body and the soil. Even if the water flow damages the soil around the drainage ditch body, the drainage ditch body will not be damaged in a short time and can still complete the drainage operation under the support of the water guide plate.
[0032] A receiving unit is installed at one end of the drainage trough body 4, and a plug-in unit is installed at the other end of the drainage trough body 4.
[0033] A support unit is installed on the lower surface of the drainage trough body 4;
[0034] The water guide plate 3, the drainage trough body 4, the receiving unit, the plug-in unit and the supporting unit are integrally formed, which has low processing cost and is easy to construct.
[0035] Specifically, the connection between the water guide plate 3 and the drainage trough body 4 is arc-shaped.
[0036] Specifically, a water-blocking strip 1 is installed on the lower surface of the free end of the water guide plate 3. The water-blocking strip is triangular. On the one hand, the water-blocking strip can be pressed into the soil to block the water flow and prevent the water flow from damaging the soil below the water guide plate and the drainage channel body. On the other hand, it can increase the contact area between the water guide plate and the soil and achieve a stable connection between the water guide plate and the soil.
[0037] Specifically, the receiving unit includes a receiving plate 6, which is fixedly connected to one end opening of the drainage trough body 4, and the lower surface of the receiving plate 6 is flush with the lower surface of the water guide plate 3 and the drainage trough body 4.
[0038] The upper surface of the receiving plate 6 is lower than the upper surfaces of the drainage trough body 4 and the water guide plate 3;
[0039] The upper surface of the receiving plate 6 is provided with a snap-fit groove 2, and a sealing strip is placed in the snap-fit groove 2.
[0040] Specifically, the plug-in unit includes a plug-in plate 8, the upper surface of which is flush with the upper surfaces of the water guide plate 3 and the drainage trough body 4.
[0041] Furthermore, a snap-fit strip 7 is fixedly installed on the lower surface of the plug plate 8, and the snap-fit strip 7 is Ω-shaped, tower-shaped, or rectangular.
[0042] Specifically, the snap-fit strip 7 is sealed to the snap-fit groove 2. The mortise and tenon joint installation method facilitates construction and effectively ensures the sealing performance of the connection.
[0043] Specifically, the supporting unit includes a supporting plate 5, which is fixedly installed on the lower surface of the drainage ditch body 4. The supporting plate 5 can increase the contact area between the lower surface of the drainage ditch body 4 and the soil, and prevent the drainage ditch body 4 from shifting when impacted by water flow.
[0044] Specifically, elevation adjustment blocks are spirally installed on both sides of the lower surface of the support plate 5. By adjusting the extension height of the elevation adjustment blocks, the slope of the drainage ditch body 4 can be adjusted to ensure that the water flow can flow smoothly within the drainage ditch body and prevent blockage. The extension height of the elevation adjustment blocks can also be controlled to form a sedimentation section in the drainage ditch body to deposit sand and gravel and prevent sand and gravel from blocking the water flow. Furthermore, the adjustment of the support plate reduces the accuracy requirements of the bottom elevation during the excavation of the ditch bottom, facilitates construction operations, and reduces construction costs.
[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0046] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A prefabricated temporary drainage ditch for roadbed slopes, comprising a drainage ditch body (4), characterized in that: A water guide plate (3) is fixedly installed at the upper opening of the drainage trough body (4); One end of the drainage trough body (4) is equipped with a receiving unit, and the other end of the drainage trough body (4) is equipped with a plug-in unit. A support unit is installed on the lower surface of the drainage trough body (4); The water guide plate (3), the drainage trough body (4), the receiving unit, the plug-in unit and the supporting unit are integrally formed.
2. The prefabricated temporary drainage ditch for roadbed slopes according to claim 1, characterized in that: The connection between the water guide plate (3) and the drainage trough body (4) is arc-shaped.
3. The prefabricated temporary drainage ditch for roadbed slopes according to claim 1, characterized in that: A water-blocking strip (1) is installed on the lower surface of the free end of the water guide plate (3).
4. The prefabricated temporary drainage ditch for roadbed slopes according to claim 1, characterized in that: The receiving unit includes a receiving plate (6), which is fixedly connected to one end opening of the drainage trough body (4), and the lower surface of the receiving plate (6) is flush with the lower surface of the water guide plate (3) and the drainage trough body (4). The upper surface of the receiving plate (6) is lower than the upper surface of the drainage trough body (4) and the water guide plate (3); The upper surface of the receiving plate (6) is provided with a snap-fit groove (2), and a sealing strip is placed in the snap-fit groove (2).
5. A prefabricated temporary drainage ditch for roadbed slopes according to claim 4, characterized in that: The plug-in unit includes a plug-in plate (8), the upper surface of which is flush with the upper surface of the water guide plate (3) and the drainage trough body (4); Furthermore, a snap-fit strip (7) is fixedly installed on the lower surface of the plug-in plate (8).
6. A prefabricated temporary drainage ditch for roadbed slopes according to claim 5, characterized in that: The snap-fit strip (7) is sealed to the snap-fit groove (2).
7. A prefabricated temporary drainage ditch for roadbed slopes according to claim 1, characterized in that: The supporting unit includes a supporting plate (5), which is fixedly installed on the lower surface of the drainage trough body (4).
8. A prefabricated temporary drainage ditch for roadbed slopes according to claim 7, characterized in that: Elevation adjustment blocks are spirally installed on both sides of the lower surface of the support plate (5).