Prefabricated assembled trench system

By using prefabricated modular intercepting ditch systems, which utilize prefabricated concrete units, high-strength screws, and water-swellable rubber sealing rings, the problems of low construction efficiency and easy leakage of cast-in-place concrete are solved, achieving efficient and environmentally friendly intercepting ditch construction and stable drainage effect.

CN224678828UActive Publication Date: 2026-08-25SICHUAN RUIKE TONGCHUANG POWER ENG DESIGN CO LTD
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Patent Information

Application Number
CN202522101301.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-08-25
Estimated Expiration
2035-09-29

AI Technical Summary

Technical Problem

Existing intercepting ditches have low construction efficiency, cause serious environmental pollution, are prone to structural cracking, and have difficulty in guaranteeing quality. Traditional cast-in-place concrete technology has the problems of large construction area, waste of resources, and leakage risk.

Method used

The prefabricated interlocking ditch system utilizes prefabricated concrete interlocking ditch units and socket design, combined with high-strength screws and water-swellable rubber sealing rings, to achieve rapid assembly and reliable sealing.

Benefits of technology

It improved construction efficiency, reduced environmental damage, lowered resource consumption, and ensured structural stability and waterproofing performance, eliminating joint leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a prefabricated assembled water interception ditch system adopts the concrete water interception ditch unit and the socket type design of factory prefabrication, thoroughly gives up the traditional procedure of field formwork, pouring and formwork dismantling, greatly shortens the construction period, improves construction efficiency, and guarantees the unity of product quality, only carries out assembly operation on the spot, and excavation area and earthwork quantity are greatly reduced, which reduces the damage to the original landform vegetation and soil and water, reduces the generation of construction waste, and has remarkable environmental protection advantages, through high -strength screw rod and combine the water -swelling rubber sealing ring, form stable and reliable flexible seal at the interface, the prefabricated assembled water interception ditch system can effectively adapt to the tiny settlement deformation of foundation, and prevent interface leakage, solve the intractable problem of easy cracking of cast -in -situ structure due to shrinkage and settlement, and ensure the long -term drainage safety and stability of water interception ditch.
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Description

Technical Field

[0001] This utility model relates to a drainage component, specifically a prefabricated assembled intercepting ditch system. Background Technology

[0002] The core function of intercepting ditches is to intercept and divert surface runoff, protect excavated and embanked slopes, prevent water erosion, and ensure the safety of facilities at the bottom of the slope. They are mainly used in road engineering, soil and water conservation, and disaster prevention. Before construction, intercepting ditches should be considered an essential drainage facility and prioritized for construction.

[0003] In existing construction projects, intercepting ditches mostly still use the traditional cast-in-place concrete process. This technology is outdated, requires a large excavation area, necessitates formwork, and requires a large working surface for on-site concrete pouring, resulting in environmental pollution and severe damage to vegetation. Existing cast-in-place concrete intercepting ditches have the following disadvantages: (1) Cast-in-place concrete structures are prone to cracks and leakage due to temperature changes, stress shrinkage, material quality, construction quality, chemical corrosion and settlement. (2) The excavation area is large, which seriously damages the soil and water of the site, requires formwork, and wastes resources such as timber and sand. (3) Difficulty in on-site casting and formwork removal after on-site formwork erection; (4) The on-site construction time is long, the conditions are poor, the construction quality is difficult to guarantee, and the construction standards are difficult to unify. Utility Model Content

[0004] In view of this, in order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a prefabricated modular intercepting ditch system.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A prefabricated, assembled intercepting ditch system includes: The intercepting ditch unit is designed as multiple sections and is made of precast concrete. A connecting mechanism for sealingly connecting two adjacent sections of the intercepting ditch unit longitudinally; The ends of two adjacent sections of the intercepting ditch unit are respectively provided with a socket and a spigot that cooperate with each other; the connecting mechanism includes a connecting hole provided on the side wall of the intercepting ditch unit and a high-strength screw that passes through the connecting hole of the two adjacent sections of the intercepting ditch unit. The joint between the socket and the spigot is provided with at least one elastic sealing ring.

[0006] Furthermore, the elastic sealing ring is a water-swellable rubber composite sealing ring.

[0007] Furthermore, the compression ratio of the water-swellable rubber composite sealing ring is not less than 55%.

[0008] Furthermore, the elastic sealing ring between two adjacent sections of the intercepting ditch unit is provided as two rings, one of which is located between the end faces of the socket and the spigot, and the other is located between the end faces of two adjacent sections of the intercepting ditch unit.

[0009] Furthermore, the wall thickness of the intercepting ditch unit is not less than 150mm.

[0010] Furthermore, each side wall of the intercepting ditch unit is provided with at least two parallel connecting holes spaced apart.

[0011] Furthermore, the first end of the connecting hole penetrates the end face of the intercepting ditch unit, and the second end is provided with an operating groove, the opening of which is opened on the outer wall of the intercepting ditch unit.

[0012] Furthermore, the operating channel is a cubic channel, and the cubic channel has a side surface parallel to the cross-section of the intercepting ditch unit.

[0013] Furthermore, the second end of the connecting hole is connected to the operating groove, and the second end of the connecting hole is located in the middle of the side of the operating groove that is parallel to the end face of the intercepting ditch unit.

[0014] Furthermore, the cross-section of the intercepting ditch unit is trapezoidal; the length of the connecting hole is twice the side length of the operating groove, the outer diameter of the high-strength screw is one-fifth the side length of the operating groove, and the inner diameter of the connecting hole differs from the outer diameter of the high-strength screw by only 2mm.

[0015] The beneficial effects of this utility model are as follows: The technical advantages of this prefabricated modular intercepting ditch system are mainly reflected in significant improvements in construction efficiency, environmental protection, structural reliability, and waterproofing performance. Firstly, the use of factory-prefabricated concrete intercepting ditch units and a socket-type design completely eliminates the traditional on-site formwork, pouring, and dismantling processes, greatly shortening the construction period, improving construction efficiency, and ensuring product quality consistency. Secondly, on-site work only involves assembly, significantly reducing the excavation area and earthwork volume, minimizing damage to the original topography, vegetation, and soil, and reducing construction waste generation, resulting in significant environmental advantages. Finally, high-strength bolts apply longitudinal pre-tightening force, combined with water-swellable rubber sealing rings, forming a stable and reliable flexible seal at the joints. This prefabricated modular intercepting ditch system effectively adapts to minor foundation settlement deformation, eliminates joint leakage, solves the persistent problem of cracking in cast-in-place structures due to shrinkage and settlement, and ensures the long-term drainage safety and stability of the intercepting ditch. Attached Figure Description

[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration: Figure 1 This is a structural schematic diagram of an embodiment of the prefabricated and assembled intercepting ditch system of this utility model; Figure 2 This is a side view of the intercepting ditch unit; Figure 3 This is a schematic diagram of the connection structure between two adjacent intercepting ditch units. Figure 4 This is a diagram showing the usage status of the prefabricated modular intercepting ditch system in this embodiment.

[0017] Explanation of reference numerals in the attached figures: 1-Intercepting trench unit; 2-Socket; 3-Seal; 4-Connecting hole; 5-High-strength screw; 6-Elastic sealing ring; 7-Operating groove; 8-Nut. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0019] like Figure 1 As shown, the prefabricated modular intercepting ditch system of this embodiment includes an intercepting ditch unit 1 and a connecting mechanism. Specifically, the intercepting ditch unit 1 is divided into multiple sections and is prefabricated using concrete. The connecting mechanism is used to sealably connect two adjacent intercepting ditch units 1 longitudinally. Specifically, the ends of two adjacent intercepting ditch units 1 are respectively provided with mutually mating sockets 2 and spigots 3; the connecting mechanism includes connecting holes 4 provided on the side wall of the intercepting ditch unit 1 and high-strength screws 5 passing through the connecting holes 4 of the two adjacent intercepting ditch units 1, and at least one elastic sealing ring 6 is provided at the joint of the socket 2 and the spigot 3. In a preferred embodiment of this embodiment, there are two elastic sealing rings 6 between two adjacent intercepting ditch units 1, one located between the end faces of the socket 2 and the spigot 3, and the other located between the end faces of the two adjacent intercepting ditch units 1. In this way, a double-layer seal can be achieved, improving the sealing effect and sealing reliability. In this embodiment, the high-strength screw 5 not only enables the fixed connection between two adjacent intercepting ditch units 1, but also applies longitudinal pre-tightening force through the high-strength screw 5, and in combination with the water-swellable rubber sealing ring 6, forms a stable and reliable flexible seal at the insertion interface of the two intercepting ditch units 1.

[0020] In a preferred embodiment of this example, the elastic sealing ring 6 is a water-swellable rubber composite sealing ring, and the compression ratio of the water-swellable rubber composite sealing ring is not less than 55%. By utilizing the water-swellable rubber composite sealing ring's property of expanding when exposed to water, the sealing reliability of the two adjacent intercepting ditch units 1 during the drainage process can be further improved.

[0021] In this embodiment, the cross-section of the intercepting ditch unit 1 is trapezoidal, and the wall thickness of the intercepting ditch unit 1 is not less than 150mm. Specifically, in this embodiment, the wall thickness D of the intercepting ditch unit 1 is 200mm, the height H is 400-1000mm, the bottom width L of the intercepting ditch unit 1 is 400-1000mm, and the included angle θ between the sidewall and the bottom surface of the intercepting ditch unit 1 is 120-135°.

[0022] Specifically, each side wall of the intercepting ditch unit 1 is provided with at least two parallel connecting holes 4 at intervals. In this embodiment, each side wall of the intercepting ditch unit 1 is provided with two parallel connecting holes 4 at intervals. By increasing the number of connecting holes 4, the number of connection positions between two adjacent intercepting ditch units 1 can be increased, thereby further improving the connection reliability between two adjacent intercepting ditch units 1.

[0023] In this embodiment, the first end of the connecting hole 4 penetrates the end face of the intercepting ditch unit 1, and the second end is provided with an operating groove 7. The opening of the operating groove 7 is located on the outer wall of the intercepting ditch unit 1. In this embodiment, the operating groove 7 is a cubic groove with a side parallel to the cross-section of the intercepting ditch unit 1. The second end of the connecting hole 4 communicates with the operating groove 7, and the second end of the connecting hole 4 is located in the middle of the side of the operating groove 7 parallel to the end face of the intercepting ditch unit 1. Thus, through the operating groove 7, the high-strength screw 5 can be inserted into the connecting hole 4, and the longitudinal preload can be easily adjusted by operating the nut 8, etc.

[0024] In this embodiment, the cross-section of the intercepting ditch unit 1 is trapezoidal; the length of the connecting hole 4 is twice the side length of the operating groove, the outer diameter of the high-strength screw 5 is one-fifth the side length of the operating groove 7, and the difference between the inner diameter of the connecting hole 4 and the outer diameter of the high-strength screw 5 is only 2mm. In this embodiment, the side length of the operating groove 7 is 100mm, the length of the connecting hole 4 is 200mm, the outer diameter of the high-strength screw 5 is 20mm, and the inner diameter of the connecting hole 4 is 22mm.

[0025] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A prefabricated, assembled intercepting ditch system, characterized in that: include: The intercepting ditch unit (1) is made of multiple sections and precast concrete. A connecting mechanism for sealingly connecting two adjacent sections of the intercepting ditch unit (1) longitudinally; The ends of two adjacent sections of the intercepting ditch unit (1) are respectively provided with a socket (2) and a plug (3) that cooperate with each other; the connecting mechanism includes a connecting hole (4) provided on the side wall of the intercepting ditch unit (1) and a high-strength screw (5) passing through the connecting hole (4) of the two adjacent sections of the intercepting ditch unit (1). At least one elastic sealing ring (6) is provided at the joint of the socket (2) and the spigot (3).

2. The prefabricated modular intercepting ditch system according to claim 1, characterized in that: The elastic sealing ring (6) is a water-swellable rubber composite sealing ring.

3. The prefabricated modular intercepting ditch system according to claim 2, characterized in that: The compression ratio of the water-swellable rubber composite sealing ring is not less than 55%.

4. The prefabricated modular intercepting ditch system according to claim 1, characterized in that: Two elastic sealing rings (6) are provided between two adjacent sections of the intercepting ditch unit (1), one of which is located between the end faces of the socket (2) and the insertion port (3), and the other is located between the end faces of two adjacent sections of the intercepting ditch unit (1).

5. The prefabricated modular intercepting ditch system according to claim 1, characterized in that: The wall thickness of the intercepting ditch unit (1) is not less than 150mm.

6. The prefabricated modular intercepting ditch system according to claim 1, characterized in that: At least two parallel connecting holes (4) are provided at intervals on each side wall of the intercepting ditch unit (1).

7. The prefabricated modular intercepting ditch system according to claim 1, characterized in that: The first end of the connecting hole (4) penetrates the end face of the intercepting ditch unit (1), and the second end is provided with an operating groove (7). The opening of the operating groove (7) is opened on the outer wall of the intercepting ditch unit (1).

8. The prefabricated modular intercepting ditch system according to claim 7, characterized in that: The operating groove (7) is a cubic groove, and the cubic groove has a side parallel to the cross-section of the intercepting ditch unit (1).

9. The prefabricated modular intercepting ditch system according to claim 8, characterized in that: The second end of the connecting hole (4) is connected to the operating groove (7), and the second end of the connecting hole (4) is located in the middle of the side of the operating groove (7) that is parallel to the end face of the intercepting ditch unit (1).

10. The prefabricated modular intercepting ditch system according to claim 8, characterized in that: The cross-section of the intercepting ditch unit (1) is trapezoidal; the length of the connecting hole (4) is twice the side length of the operating groove, the outer diameter of the high-strength screw (5) is one-fifth the side length of the operating groove (7), and the inner diameter of the connecting hole (4) differs from the outer diameter of the high-strength screw (5) by only 2mm.