Movable and self-sinking type double-wall steel cofferdam
By designing a movable and self-sinking double-wall steel cofferdam, the combination of hollow fence and flexible water stops is solved, and the problem of heavy quality and poor water stopping effect of existing steel cofferdams is achieved effectively. The defects of channel lining panels are achieved Reduce safety hazards.
Patent Information
- Application Number
- CN202420005405.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-02
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-01-02
AI Technical Summary
The existing steel cofferdam has heavier overall quality and poor water stop effect on the bottom surface, making it difficult to effectively deal with defects such as collapse, uplift and freeze-thaw damage of channel lining panels. Especially in large-scale water transfer projects such as the South-to-North Water Diversion Middle Line Project, there is a lack of An effective permanent treatment method has safety hazards.
A movable and self-sinking double-wall steel cofferdam is designed, using a hollow enclosure and multiple flexible water stops. The hollow enclosure is "U" in shape, with arcuate grooves at the bottom to fix the flexible water stops. , the inner wall is equipped with a pipe port for water injection or pumping, which can achieve rapid sinking or floating, and improve the sealing ability with the channel slope.
Through the design of the hollow enclosure, the overall quality is reduced, and rapid sinking or floating is achieved through water injection or pumping, which improves the efficiency and sealing of the cofferdam, ensuring that the channels can be effectively solved under waterless operation conditions after pumping The defects of the lining panel reduce safety hazards.
Smart Images
Figure CN222500298U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of water conservancy, in particular to a movable and self-sinking double-wall steel cofferdam. Background Art
[0002] Large-scale water diversion and water supply projects such as the South-to-North Water Diversion Middle Route Trunk Project have long routes, complex geological conditions along the route, and large changes in environmental conditions. Especially during the flood season, when the groundwater level rises, the channel will have defects such as cracks in the lining panel, surface freeze-thaw damage, peeling, collapse, and top support bulge. At present, channel defect treatment at home and abroad is generally implemented under water outage conditions. However, the water receiving areas along the large-scale water diversion and water supply projects have a high degree of dependence on the water source they divert, especially the South-to-North Water Diversion Middle Route Trunk Project, which increasingly highlights the significant economic, social, and ecological benefits. Generally, there is no condition to lower the water level for operation or stop water for maintenance. For defects such as collapse and bulge of the channel lining panel below the water surface line and freeze-thaw damage above and below the water surface line, only temporary measures such as weighting can be adopted. There is no effective permanent treatment method, which brings safety hazards to the project. The current steel cofferdam is not only heavy in overall quality, but also has poor bottom water-stopping effect, which is in urgent need of improvement. Utility Model Content
[0003] The utility model aims to provide a movable and self-sinking double-wall steel cofferdam, which is used to solve the problem that the existing steel cofferdam has not only a heavy overall mass but also a poor bottom surface water-stopping effect.
[0004] In order to solve the above problems, the present invention provides a movable and self-sinking double-wall steel cofferdam, including a hollow enclosure and a plurality of flexible waterstop members, the hollow enclosure including symmetrically arranged trapezoidal side panels and connecting plates connected between the trapezoidal side panels, a plurality of the flexible waterstop members are fixed to the bottom of the hollow enclosure, and the inner side wall of the hollow enclosure is fixedly provided with a pipe opening for injecting or pumping water into the inner cavity of the hollow enclosure.
[0005] The utility model provides a movable and self-sinking double-wall steel cofferdam, which also has the following technical features:
[0006] Furthermore, the hollow enclosure is overall in a "U" shape.
[0007] Furthermore, the side wall projection of the trapezoidal side panel is a right-angled trapezoid with the inclined surface facing downward.
[0008] Furthermore, mounting plates are symmetrically fixed to the side walls of the trapezoidal side plates, telescopic rods are fixed to the bottoms of the mounting plates, and universal wheels are fixed to the telescopic ends of the telescopic rods.
[0009] Furthermore, a plurality of arc-shaped grooves are provided at the bottom of the hollow enclosure.
[0010] Furthermore, the flexible water stop member is a "U-shaped" inflatable air bag, and a portion of the flexible water stop member is fixed in the arc-shaped groove.
[0011] Furthermore, a pull ring is fixedly provided on one side of the trapezoidal side plate.
[0012] The utility model has the following beneficial effects: the hollow enclosure can be used to implement rapid enclosure of the channel slope; since the hollow enclosure adopts a hollow design, not only the overall mass of the hollow enclosure is reduced, but also the hollow enclosure can be quickly sunk or floated by injecting water into or pumping water into the cavity of the hollow enclosure, thereby improving the enclosure efficiency; at the same time, since a plurality of the flexible water stop members are fixedly provided at the bottom of the hollow enclosure, the sealing between the hollow enclosure and the channel slope can be improved, further ensuring that waterless operations will be performed in the hollow enclosure after pumping water. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the movable and self-sinking double-wall steel cofferdam;
[0014] Figure 2 A schematic diagram of the bottom structure of the movable and self-sinking double-wall steel cofferdam;
[0015] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the hollow enclosure. DETAILED DESCRIPTION
[0016] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0017] like Figures 1 to 3 In one embodiment of the movable and self-sinking double-wall steel cofferdam of the utility model, the hollow enclosure 10 and a plurality of flexible water stop members 20 are included. The hollow enclosure 10 includes symmetrically arranged trapezoidal side panels 11 and connecting panels 12 connected between the trapezoidal side panels 11. The plurality of flexible water stop members 20 are fixed to the bottom of the hollow enclosure 10. The inner side wall of the hollow enclosure 10 is fixedly provided with a pipe opening 101 for injecting or pumping water into the inner cavity 100 of the hollow enclosure 10. Specifically, through the hollow enclosure 10 Rapid fencing can be implemented on the channel slope. Since the hollow fencing 10 adopts a hollow design, it not only reduces the overall mass of the hollow fencing 10, but also can quickly sink or float by injecting water into or pumping water from the cavity 102 of the hollow fencing 10, thereby improving the fencing efficiency. At the same time, since a plurality of flexible water stop members 20 are fixedly provided at the bottom of the hollow fencing 10, the sealing between the hollow fencing 10 and the channel slope can be improved, further ensuring that waterless operations will be performed in the hollow fencing after pumping.
[0018] In one embodiment of the present application, the hollow enclosure 10 is overall in a "U" shape.
[0019] In one embodiment of the present application, the side wall projection of the trapezoidal side panel 11 is a right-angled trapezoid with the inclined surface facing downward.
[0020] In one embodiment of the present application, a mounting plate 110 is symmetrically fixed to the side wall of the trapezoidal side plate 11 , a telescopic rod 111 is fixed to the bottom of the mounting plate 110 , and a universal wheel 112 is fixed to the telescopic end of the telescopic rod 111 .
[0021] In one embodiment of the present application, a plurality of arc-shaped grooves are provided at the bottom of the hollow enclosure 10 .
[0022] In one embodiment of the present application, the flexible water stop member 20 is a "U-shaped" inflatable air bag, and a portion of the flexible water stop member 20 is fixed in the arc-shaped groove.
[0023] In one embodiment of the present application, a pull ring 113 is fixedly provided on one side of the trapezoidal side plate 11 .
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for their core technical features. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A movable and self-sinking double-wall steel cofferdam, characterized by: It includes a hollow enclosure and a plurality of flexible water-stopping members, wherein the hollow enclosure includes symmetrically arranged trapezoidal side panels and connecting plates connected between the trapezoidal side panels, the plurality of flexible water-stopping members are fixed to the bottom of the hollow enclosure, and the inner side wall of the hollow enclosure is fixedly provided with a pipe opening for injecting or pumping water into the inner cavity of the hollow enclosure.
2. The movable and self-sinking double-walled steel cofferdam according to claim 1 is characterized in that: The hollow enclosure is in a "U" shape as a whole.
3. The movable and self-sinking double-walled steel cofferdam according to claim 1 is characterized in that: The side wall projection of the trapezoidal side plate is a right-angled trapezoid with the inclined surface facing downward.
4. The movable and self-sinking double-walled steel cofferdam according to claim 1 is characterized in that: The side walls of the trapezoidal side plates are symmetrically fixed with mounting plates, the bottoms of the mounting plates are fixed with telescopic rods, and the telescopic ends of the telescopic rods are fixed with universal wheels.
5. The movable and self-sinking double-walled steel cofferdam according to claim 1 is characterized in that: A plurality of arc-shaped grooves are arranged at the bottom of the hollow enclosure.
6. The movable and self-sinking double-walled steel cofferdam according to claim 5 is characterized in that: The flexible water stop is a "U-shaped" inflatable air bag, and a portion of the flexible water stop is fixed in the arc-shaped groove.
7. The movable and self-sinking double-walled steel cofferdam according to claim 1 is characterized by: A pull ring is fixedly provided on one side of the trapezoidal side plate.