Drainage pipeline tree root puncture disease prevention and control structure

By using a combination of expansion sealing strips, root-proof roll material, and concrete protective layer in the drainage pipes, the problem of drainage pipes caused by tree root penetration was solved, achieving efficient protection and long-term stable operation, reducing the risk of urban flooding and maintenance costs.

CN223738692UActive Publication Date: 2025-12-30SINOHYDRO BUREAU 11 CO LTD
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Patent Information

Application Number
CN202520050024.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2025-12-30
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

The underground drainage pipe network in small and medium-sized cities is unstable due to tree root penetration, and existing technologies cannot effectively prevent this. Furthermore, there is a lack of mature processes in the construction of new pipe networks.

Method used

The system employs socket-type drainage pipes and a combination structure of expansion sealing strips, root-piercing membrane, and concrete protective layer. The connection process is optimized by incorporating a lubrication layer, forming a prevention and control structure against root-piercing diseases.

Benefits of technology

It effectively prevents tree root puncture, improves sealing performance, enhances the stability and durability of the drainage system, reduces construction and maintenance costs, shortens the construction period, and ensures the safety and normal operation of the urban drainage system.

✦ Generated by Eureka AI based on patent content.

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Abstract

A root puncture disease prevention and control structure for a drainage pipeline comprises drainage pipes, the drainage pipes are socket and spigot type drainage pipes, insertion ports are formed in the head portions of the drainage pipes, birdmouths matched with the insertion ports are formed in the tail portions of the drainage pipes, the number of the drainage pipes is multiple, and the number of the birdmouths matched with the insertion ports is larger than the number of the drainage pipes. The multiple sets of drainage pipes are inserted into the birdmouth through the insertion ports respectively and connected end to end, expansion water stop strips are annularly arranged between the insertion ports and the birdmouth, and the outer side of the connecting position of each insertion port and the birdmouth is wrapped with a root thorn prevention coiled material. And the outer side of the root thorn prevention coiled material is coated with a concrete protection layer. Compared with the prior art, the tree root puncture prevention device can prevent tree root puncture in a targeted mode, reduce diseases, provide a convenient and fast method for updating and maintaining a drainage system, effectively shorten the construction period, reduce cost and have high practicability and economical efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of municipal engineering construction technology, and in particular to a structure for preventing and controlling root puncture disease in drainage pipes. Background Technology

[0002] Separating rainwater and sewage is a key measure to improve people's livelihoods and is of great significance for optimizing urban drainage systems. However, in the planning and construction process of small and medium-sized cities, due to limited urban construction space, there are many imperfections and irregularities in the initial planning and construction of underground pipe networks: First, many drainage pipes are laid on auxiliary roads and sidewalks on both sides of municipal roads; second, some pipes use flat-end connections; and third, there is a lack of professional operation and maintenance teams to effectively maintain and manage the existing underground pipe networks.

[0003] As a result, various problems arise after underground pipe networks in small and medium-sized cities have been operating for some time. Because these pipe networks are located adjacent to or even directly in the green belts on both sides of roads, the extensive root penetration by trees severely disrupts their normal operation, significantly impacting the city's overall drainage function. Furthermore, depending on actual construction conditions, some cities still require new municipal pipe networks to be laid out around sidewalks and auxiliary roads, where the abundant vegetation continues to pose a risk of root penetration.

[0004] Currently, in the construction and operation of underground pipe networks, the basic approach to addressing tree root penetration is to clean the roots inside the pipes and then perform localized trenchless repairs. However, this method cannot fundamentally solve the problem, and the issue tends to recur after a period of time. Furthermore, in the field of new pipe network construction, there is still no mature technology that can effectively prevent tree root penetration. Therefore, developing a structure for preventing tree root penetration in drainage pipes that can address the problems of existing technologies has become an unresolved technical issue. Utility Model Content

[0005] Based on the aforementioned technical problems, this utility model proposes a structure for preventing and controlling tree root puncture diseases in drainage pipes, in order to solve the problems existing in the background technology.

[0006] In view of this, the present invention proposes a drainage pipe structure for preventing root penetration disease, comprising: a drainage pipe, characterized in that: the drainage pipe is a socket-type drainage pipe, the head of the drainage pipe is provided with a plug interface, the tail of the drainage pipe is provided with a socket interface adapted to the plug interface, the drainage pipe is in multiple sets, the multiple sets of drainage pipes are respectively inserted into the socket interface and connected end to end through the plug interface, an expansion sealing strip is provided circumferentially between the plug interface and the socket interface, the connection between the plug interface and the socket interface is covered with an anti-root penetration membrane, and the anti-root penetration membrane is covered with a concrete protective layer.

[0007] Furthermore, it also includes a lubricating layer, through which the insertion interface is inserted into the receiving interface.

[0008] Furthermore, the material of the expansion sealing strip is water-swellable rubber.

[0009] Furthermore, the thickness of the anti-root-piercing roll is 2mm, and the anti-root-piercing roll has a multi-layer structure, with anti-puncture protrusions and a chemical coating that inhibits root growth on its surface.

[0010] Furthermore, the thickness of the concrete protective layer is 150 mm, and the strength grade is C30.

[0011] Furthermore, the root-proof membrane is SBS root-proof membrane.

[0012] This utility model proposes a structure for preventing and controlling tree root puncture diseases in drainage pipes. Compared with the prior art, this utility model has the following advantages:

[0013] 1. Highly effective root penetration prevention: SBS root-penetration-resistant membrane, with its unique anti-penetration protrusions and chemical coating that inhibits root growth, can effectively resist the penetration of plant roots, fundamentally solving the problem of tree roots damaging drainage pipes. It greatly reduces the risk of pipe rupture and blockage caused by tree roots, ensuring the long-term stable operation of the drainage system, reducing the risk of urban flooding caused by pipe failure, and protecting the safety and normal operation of urban infrastructure.

[0014] 2. Superior waterproof and sealing performance: The expansion seal strip is made of water-swellable rubber, precisely adapting to actual working conditions. It can tightly seal the gaps at the connection of drainage pipes, effectively preventing sewage leakage. This not only avoids root growth caused by sewage leakage but also protects the surrounding soil environment, preventing soil subsidence or softening due to long-term sewage erosion. This extends the service life of the drainage pipes, reduces the high costs and resource waste caused by frequent pipe repairs and replacements, and also reduces the potential risk of damage to surrounding buildings and municipal facilities.

[0015] 3. The structure is stable and durable. The concrete protective layer provides a solid and reliable protective barrier for the internal SBS anti-root-piercing membrane and expansion sealing strip. During construction, it can resist damage to the anti-root-piercing structure from various construction factors such as mechanical impact and external pressure. In long-term use, it can withstand the effects of natural environmental factors such as soil pressure, temperature changes, and moisture erosion, ensuring the integrity and functionality of the entire prevention and control structure remains undamaged. This further enhances the durability and reliability of the drainage pipeline system, reduces later maintenance costs and workload, and improves the economic and social benefits of urban drainage network construction.

[0016] 4. Improved construction convenience: The lubrication layer optimizes the connection process of drainage pipes, allowing the plug to be smoothly inserted into the socket. While ensuring tight connection and sealing performance, it improves construction efficiency, reduces construction difficulty and labor costs, helps shorten the project construction cycle, and enables the drainage pipe system to be put into use more quickly, providing strong support for urban construction and development.

[0017] 5. This utility model is applicable to the construction and renovation of drainage pipe networks, and is particularly effective in the construction of rainwater and sewage separation pipelines in municipal engineering projects. Compared with traditional technologies, this utility model can specifically prevent root penetration problems, reduce the occurrence of diseases, provide a convenient and fast method for drainage system renewal and maintenance, effectively shorten the construction period, reduce costs, and has high practicality and economy. Attached Figure Description

[0018] Figure 1 A schematic diagram of the insertion structure of the drainage pipe of this utility model is shown;

[0019] Figure 2 The figure shown is a cross-sectional view AA of the present invention;

[0020] In the diagram: 1. Drainage pipe, 2. Insertion interface, 3. Lubricating layer, 4. Socket interface, 5. Anti-root-piercing membrane, 6. Expansion waterstop strip, 7. Concrete protective layer. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the contents disclosed below.

[0023] The following combination Figure 1 and Figure 2 The technical solution of this utility model will be further explained.

[0024] First embodiment, such as Figure 1 and Figure 2As shown: A drainage pipe root penetration disease prevention and control structure, comprising: a drainage pipe 1, wherein the drainage pipe 1 is a socket-type drainage pipe, wherein the head of the drainage pipe 1 is provided with a plug interface 2, and the tail of the drainage pipe 1 is provided with a socket interface 4 adapted to the plug interface 2, wherein there are multiple sets of drainage pipes 1, and the multiple sets of drainage pipes 1 are respectively inserted into the socket interface 4 through the plug interface 2 and connected end to end, wherein an expansion water-stop strip 6 is circumferentially provided between the plug interface 2 and the socket interface 4, and the outside of the connection between the plug interface 2 and the socket interface 4 is covered with an anti-root penetration roll 5, and the outside of the anti-root penetration roll 5 is covered with a concrete protective layer 7.

[0025] It also includes a lubricating layer 3, through which the insertion interface 2 is inserted into the receiving interface 4. The expansion sealing strip 6 is made of water-swellable rubber, which can effectively seal the gap of the pipe connection and prevent sewage leakage. The root-resistant membrane 5 is 2mm thick and has a multi-layer structure. Its surface is provided with anti-puncture protrusions and a chemical coating that inhibits root growth, which can effectively prevent tree roots from penetrating. The concrete protective layer 7 is 150mm thick and has a strength grade of C30, which can provide sufficient protective strength for the internal expansion sealing strip 6. The root-resistant membrane 5 is an SBS root-resistant membrane.

[0026] The drainage pipe 1 has a plug 2 and a socket 4 for sewage transportation; the lubrication layer 3 is located between the plug 2 and the socket 4 to facilitate pipe connection; the expansion sealing strip 6 is installed at the connection between the plug 2 and the socket 4 to replace the traditional sealing ring and prevent sewage seepage from causing tree root growth; the root-proof membrane 5 is fully wrapped at the connection between the plug 2 and the socket 4 to block tree root penetration; the concrete protective layer 7 is wrapped around the root-proof membrane 5 to protect it from damage during construction and use.

[0027] This utility model effectively solves the problem of preventing root penetration disease in newly built drainage pipe networks. Its working principle is as follows: an expansion sealing strip 6 replaces the traditional sealing ring to prevent sewage seepage; the pipe connection is fully wrapped with anti-root penetration membrane 5, and the membrane is protected with a concrete protective layer 7 to avoid construction damage, thereby achieving the effect of preventing root penetration disease. It provides a reliable solution for the construction and maintenance of drainage pipe networks, reduces construction and later maintenance costs, and improves the stability and durability of drainage systems. It has significant economic and social benefits and has good application prospects in the field of municipal drainage engineering.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drainage pipe structure for preventing root penetration disease, comprising a drainage pipe, characterized in that: The drainage pipe is a socketed drainage pipe, a first end of the drainage pipe is provided with a plug-in interface, a tail end of the drainage pipe is provided with a socketed interface matched with the plug-in interface, a plurality of groups of the drainage pipes are respectively inserted into the socketed interfaces through the plug-in interfaces and connected end to end, an expansion waterstop is arranged between the plug-in interface and the socketed interface in a ring shape, an outer side of a connection position of the plug-in interface and the socketed interface is covered with a root penetration prevention coiled material, and an outer side of the root penetration prevention coiled material is covered with a concrete protective layer.

2. The sewer root intrusion damage preventing structure according to claim 1, characterized by: A lubricating layer is further included, and the plug-in interface is inserted into the socketed interface through the lubricating layer.

3. The sewer root penetration disease control structure according to claim 2, characterized by: The expansion waterstop is made of water-swelling rubber.

4. The sewer root penetration damage preventing structure according to claim 3, characterized by: The root penetration prevention coiled material has a thickness of 2 mm, a multilayer structure, a puncture prevention protrusion on a surface thereof, and a chemical coating for inhibiting root growth.

5. The sewer root penetration disease control structure according to claim 4, characterized by: The concrete protective layer has a thickness of 150 mm and a strength grade of c30.

6. The sewer root penetration damage preventing structure according to claim 5, characterized by: The root penetration prevention coiled material is SBS root penetration prevention coiled material.