Auxiliary tool applied to diversion and cofferdam operation
By using diversion and cofferdam operation auxiliary tools, and utilizing support base plates, baffles, and U-shaped diversion plates to achieve orderly drainage, the problems of high engineering costs, large workload, and significant environmental impact in tunnel and bridge construction have been solved, thereby improving construction efficiency and reducing costs.
Patent Information
- Application Number
- CN202422924185.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-28
AI Technical Summary
When constructing existing tunnels and bridges, conventional diversion methods are costly, involve a large amount of construction work, have a long construction period, and have a significant impact on rivers and the surrounding environment. In particular, the treatment of upstream water is complex, leading to increased costs and expanded environmental impact.
An auxiliary tool for diversion and cofferdam construction is adopted, which includes a supporting base plate, baffle, diversion port, U-shaped diversion plate and sealing strip. The diversion port and U-shaped diversion plate are used to achieve orderly drainage, reduce river runoff and infiltration, and are fixed in the river by spikes. The baffle cuts off the flow to facilitate construction.
It achieves orderly drainage, reduces the impact of construction on the river, lowers the cost of treating upstream water, simplifies the construction process, improves work efficiency, and saves manpower and resources.
Smart Images
Figure CN223535636U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road engineering technology, and in particular to an auxiliary tool used in diversion and cofferdam operations. Background Technology
[0002] When tunnel projects, pipeline projects, and bridge projects are being constructed under rivers, it is necessary to implement cofferdam diversion measures to provide a good working environment for the construction of the lower tunnels and pipelines, or the upper bridges. This reduces the water content of the soil above the tunnels and pipelines, decreases river infiltration, or provides a better working environment for bridge pile foundation construction through orderly drainage, thereby reducing the impact of disorderly river drainage on construction.
[0003] Common methods for diverting water using cofferdams include: flow interruption, laying a waterproof blanket on the riverbed, installing a cover plate at the bottom, and excavating a diversion channel. The flow interruption method involves constructing a cofferdam to cut off the upstream water flow, reducing the downstream flow and thus decreasing infiltration, providing a larger working surface for related engineering projects. While the construction method is simple, the treatment of the upstream water is the main engineering challenge. Treating the upstream water involves multiple departments, resulting in significant engineering work and costs, and also impacting the discharge of surface water and sewage during the rainy season in the surrounding area.
[0004] When using the cut-and-cover method, during the dry season, construction is carried out in two phases along the river, one on each side. A U-shaped cofferdam is built, and the accumulated water and silt inside the cofferdam are cleared away. Cover plates are then laid on the riverbed for support. The soil beneath the cover plates is excavated to construct the tunnel or pipeline structure. This method requires a large number of cover plates, demands high-quality support, and involves a significant amount of work, resulting in increased construction costs.
[0005] The diversion channel excavation method involves digging a diversion channel on one or both sides of the river, laying a waterproof blanket at the bottom of the channel, and then building a cofferdam upstream to divert river water into the diversion channel. When using this construction method, the required working area will be further increased because diversion channels need to be excavated on one or both sides of the river, and the location of the river is often inconvenient for diversion channel construction.
[0006] In summary, the main drawbacks of the existing construction methods are the high engineering costs, increased workload, long construction period, insufficient utilization of the existing riverbed resulting in a large construction area, significant impact on the surrounding environment, and insufficient treatment of river water, leading to increased water treatment costs. Summary of the Invention
[0007] In view of this, the purpose of this utility model is to provide an auxiliary tool for diversion and cofferdam operations that can achieve river diversion and orderly drainage without being affected by construction.
[0008] This utility model is implemented by the following method: an auxiliary tool for diversion and cofferdam operations, including a supporting base plate, a baffle is provided on the left end of the upper surface of the supporting base plate, and the baffle is perpendicular to the supporting base plate. A diversion port is opened on the upper surface of the baffle. Multiple spikes for inserting into the ground are arranged at equal intervals on the lower surface of the supporting base plate. A U-shaped diversion plate is bolted between each pair of diversion ports, and a sealing strip is provided between the U-shaped diversion plate and the diversion port.
[0009] Furthermore, reinforcing rods are provided at both the front and rear ends of the supporting base plate and the baffle.
[0010] The beneficial effects of this utility model are as follows: This utility model incorporates a baffle, a diversion port, and a U-shaped diversion plate into the device, making full use of the riverbed. The diversion port guides upstream water through the engineering-affected area in an orderly manner, reducing the river's runoff and infiltration. Due to the protection provided by the U-shaped diversion plate, the orderly drainage of the river is not affected by construction, and the river's discharge function is not compromised, reducing the impact on surrounding communities. Combining the cofferdam and the U-shaped diversion plate, without altering the river's runoff, achieves orderly drainage, reducing the cumbersome communication required with multiple departments for treating upstream water and lowering treatment costs, thus achieving excellent results. This utility model has a simple structure, is easy to operate, and effectively saves manpower and resources, improving work efficiency. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This is a schematic diagram of the usage state of this utility model. Detailed Implementation
[0013] The present invention will be further described below with reference to the accompanying drawings.
[0014] Please see Figure 1 and Figure 2As shown, this utility model provides an embodiment: an auxiliary tool for diversion and cofferdam operations, including a supporting base plate 1. A baffle 2 is provided at the left end of the upper surface of the supporting base plate 1, and the baffle 2 is perpendicular to the supporting base plate 1. A diversion port 3 is opened on the upper surface of the baffle 2. Multiple spikes 4 for inserting into the ground are arranged at equal intervals on the lower surface of the supporting base plate 1. A U-shaped diversion plate 6 is connected between each pair of diversion ports 3 by bolts 31. A sealing strip 32 is provided between the U-shaped diversion plate 6 and the diversion port 3. This allows the incoming water to pass through the engineering impact area in an orderly manner by using the U-shaped diversion plate 6, while reducing the runoff of the river section and reducing river infiltration. The spikes 4 fix the supporting base plate 1 in the river, and the baffle 2 can achieve flow interruption, thereby facilitating construction.
[0015] Please continue reading. Figure 1 and Figure 2 As shown in one embodiment of this utility model, reinforcing rods 5 are provided at both the front and rear ends of the supporting base plate 1 and the baffle 2. This allows the supporting base plate 1 and the baffle 2 to be better connected and fixed through the action of the reinforcing rods 5.
[0016] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.
Claims
1. An auxiliary tool used in diversion and cofferdam operations, characterized in that: The device includes a supporting base plate, a baffle plate is provided on the left end of the upper surface of the supporting base plate and the baffle plate is perpendicular to the supporting base plate. A flow guide port is provided on the upper surface of the baffle plate. Multiple spikes for inserting into the ground are provided at equal intervals on the lower surface of the supporting base plate. A U-shaped flow guide plate is bolted between each pair of flow guide ports. A sealing strip is provided between the U-shaped flow guide plate and the flow guide port.
2. The auxiliary tool for diversion and cofferdam operations according to claim 1, characterized in that: Reinforcing rods are provided at both the front and rear ends of the supporting base plate and the baffle.