Steel self-sealing cofferdam for waterside construction
Through the design of a steel self-sealed cofferdam, problems such as large engineering volume and polluted water bodies in waterside construction have been solved, and a safe and rapid construction process and easy demolition effect have been achieved.
Patent Information
- Application Number
- CN202422506389.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-17
AI Technical Summary
The existing waterside construction has large project volume, high investment and long construction period, and it needs to occupy river channels. The soil and stone pollute the water bodies, have poor anti-seepage effect, are unsafe during the flood season, are dangerous for construction personnel, and are difficult to demolish.
The steel self-enclosed cofferdam is adopted, including steel guide rails and fence barriers. The steel guide rails are formed by welding rectangular channel steel, arranged longitudinally along the coast slope, and fixed by concrete connection, combining sliding grooves and anti-seepage rubber pads to achieve a close combination to form a closed construction site.
It has achieved structural safety and fast construction, reduced pressure on river channels, good anti-seepage effect, no polluted water bodies, and is easy to remove after construction is completed.
Smart Images
Figure CN223189722U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of water conservancy construction, in particular to a steel self-sealing cofferdam for waterside construction. Background Art
[0002] At present, there are many construction projects along the waterside of rivers and reservoirs in my country, such as water pumping stations, water inlets of water diversion channels, docks, hydrological station towers, cross-river bridge piers, and drainage culvert outlets. The traditional method is to build a water retaining cofferdam at the waterside. Generally, a trapezoidal cross-section earth and rock cofferdam is used, with a top width of not less than 3m, which is convenient for mechanical transportation and rolling construction. After the cofferdam is closed, the foundation pit water is drained for construction, and the cofferdam seepage is promptly pumped out during the construction process. The more common problems are: (1) This method has a large amount of work, large investment, and a long construction period; (2) It requires entering the river channel, squeezing the flood-carrying section of the river channel; (3) The earth and rock materials of the cofferdam will be washed away by the water flow, polluting the water body; (4) Especially during the flood season, the cofferdam is unsafe due to flood erosion, and the construction workers inside the cofferdam are unsafe; (5) The anti-seepage effect is poor, the seepage is high, and the foundation pit drainage project is large; (6) After the construction is completed, the underwater part of the cofferdam is difficult to dismantle and pollutes the water body. Utility Model Content
[0003] In view of the problems existing in the prior art, the purpose of the present utility model is to provide a steel self-sealing cofferdam for waterside construction.
[0004] In order to solve the above problems, the present invention adopts the following technical solutions:
[0005] A steel self-sealing cofferdam for waterside construction includes a steel guide rail and a baffle plate. The steel guide rails are provided in two pieces and are arranged longitudinally along the bank slope surface in parallel with each other. The lower end of the steel guide rail is inserted below the river bottom surface, and the upper end extends to the bank top ground. The steel guide rail is made by welding two rectangular channel steels, one of which is a bank slope coupling groove and the other is a baffle sliding groove. The notch of the bank slope coupling groove is arranged toward the bank slope surface and bank slope sealing concrete is poured between the notch and the bank slope surface so that The bank slope combining groove is closed and connected to the bank slope surface, the baffle sliding groove is welded on the bank slope combining groove, the baffle sliding groove openings of the two steel guide rails are arranged facing each other, and wing plates are respectively provided on both sides of the enclosure baffle, and the wing plates on both sides of the enclosure baffle are respectively slidably connected in the notches of the two baffle sliding grooves. Several enclosure baffles are connected end to end between the two baffle sliding grooves from bottom to top until the enclosure baffle reaches the height of the bank top ground to enclose a closed construction site between the enclosure baffle and the bank slope.
[0006] Preferably, river bottom sealing concrete is poured between the bottommost enclosure baffle and the river bottom so that the enclosure baffle is sealed and connected to the river bottom surface.
[0007] Preferably, a concrete lifting ring is pre-embedded on the top of the riverbed sealing concrete.
[0008] Preferably, the enclosure baffle is an arc-shaped steel plate.
[0009] Preferably, a socket slot is provided at the top of the enclosure baffle, and the bottom of one enclosure baffle can be inserted into the socket slot at the top of another enclosure baffle. A socket slot anti-seepage rubber pad is provided in the socket slot. When the bottom of one enclosure baffle is inserted into the socket slot at the top of another enclosure baffle, the socket slot anti-seepage rubber pad is pressurized and filled between the two.
[0010] Preferably, a sliding groove anti-seepage rubber pad is provided in the baffle sliding groove, and when the wing plate is connected to the baffle sliding groove, the sliding groove anti-seepage rubber pad is compressed and filled between the two.
[0011] Preferably, ribs are provided on the surface of the enclosure baffle.
[0012] Preferably, the surface of the enclosure baffle is provided with an enclosure lifting ring.
[0013] Beneficial effects of the utility model:
[0014] Compared with the prior art, the advantages of the present invention are:
[0015] The utility model changes the existing earth-rock cofferdam into a steel self-sealing cofferdam. Compared with the existing technology, the utility model has a safe structure and is quick to construct, and achieves the effects of occupying less river channel, having good anti-seepage effect, and not polluting the water body. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the enclosure plan.
[0017] Figure 2 This is a schematic diagram of the enclosure elevation.
[0018] Figure 3 Schematic diagram of the steel guide rail structure of the enclosure.
[0019] In the figure: 1. Steel guide rail; 101. Bank slope coupling groove; 102. Baffle sliding groove; 103. Anti-seepage rubber pad for sliding groove; 2. Enclosure baffle; 201. Rib plate; 202. Wing plate; 203. Socket slot; 204. Anti-seepage rubber pad for socket slot; 205. Enclosure lifting ring; 3. Bank slope sealing concrete; 4. River bottom sealing concrete; 401. Concrete lifting ring; 5. Bank slope; 6. River bottom; 7. Bank top ground. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] In the description of this utility model, it should be noted that the terms "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "set / mounted," "sleeved," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.
[0023] See also Figure 1-3 The utility model provides a technical solution: a steel self-enclosed cofferdam for waterside construction, comprising a steel guide rail 1; a bank slope coupling groove 101; a baffle sliding groove 102; a sliding groove anti-seepage rubber pad 103; a barrier baffle 2; a rib 201; a wing plate 202; a socket 203; a socket anti-seepage rubber pad 204; a barrier lifting ring 205; a bank slope sealing concrete 3; a riverbed sealing concrete 4; and a concrete lifting ring 401.
[0024] like Figure 1 As shown, a water intake pump station is built on the bank of the reservoir, and the water pump inlet pipe extends into the reservoir area to draw water. Now it is necessary to replace the water pump and the water inlet pipe of the pump station. The utility model adopts steel closed enclosure to block water construction and replace the water inlet pipe. The steel closed enclosure is arranged on the side of the reservoir and closed with the bank slope to form an engineering construction site.
[0025] Specifically, such as Figure 2As shown, a steel guide rail 1 is laid on the bank slope 5, so that the lower end of the steel guide rail 1 is inserted into the riverbed 6 soil layer to a certain depth so that the steel guide rail 1 can be fixed on the bank slope 5, and the bank slope sealing concrete 3 is poured into the bank slope combination groove 101. After the bank slope sealing concrete 3 is solidified, the steel guide rail 1 is tightly combined with the bank slope 5 and does not leak water. Then, the enclosure baffles 2 are installed step by step, and they are sunk to a certain depth of the riverbed 6 along the baffle sliding groove 102 by gravity so that the bottom enclosure baffle 2 can be fixed on the riverbed 6. The enclosure baffles 2 are installed step by step to the height of the bank top ground 7, and each level of the enclosure baffle 2 is provided with a Socket slots 203, socket slots 203 are provided with anti-seepage rubber pads 204, each level of enclosure baffle 2 is inserted into the socket slots 203 on the top of the next level of enclosure baffle 2 so that the enclosure baffles 2 at each level are tightly combined and water-proof, and the river bottom sealing concrete 4 is poured between the enclosure baffle 2 and the river bottom 6, and a concrete lifting ring 401 is embedded on the top of the river bottom sealing concrete 4. After the river bottom sealing concrete 4 is solidified, the enclosure baffle 2 is tightly combined with the river bottom 6 and water-proof, and then the water between the enclosure baffle 2 and the bank slope 5 is pumped out to form a construction site.
[0026] After the construction is completed, the enclosure lifting rings 205 of the enclosure baffles 2 at each level are tied with steel wire ropes and lifted step by step to the top of the bank ground 7. The riverbed sealing concrete 4 of the riverbed 6 is lifted to the top of the bank ground 7 through the concrete lifting rings 401. The steel guide rails 1 and the bank slope sealing concrete 3 are lifted as a whole to the top of the bank ground 7, and the enclosure is dismantled.
[0027] Preferably, if Figure 2 As shown, the enclosure baffles 2 are made of steel plates in different heights according to size, weight and lifting capacity, and are installed step by step. A socket slot 203 and an anti-seepage rubber pad 204 for the socket slot are provided on the top of each level of enclosure baffle 2. Each level of enclosure baffle 2 is inserted into the socket slot 203 of the next level of enclosure baffle 2, so that the enclosure baffles 2 at each level are tightly combined.
[0028] Preferably, if Figure 3 As shown, the steel guide rail 1 is made of two rectangular channel steels welded together, and the grooves face the direction and side of the slope 5 respectively. The slope sealing concrete 3 is poured into the slope bonding groove 101 facing the slope, so that the steel guide rail 1 is tightly combined with the slope 5 and is water-proof. The sliding groove anti-seepage rubber pad 103 is placed in the baffle sliding groove 102 facing the side, so that the enclosure baffle 2 is tightly combined with the steel guide rail 1 and is water-proof.
[0029] Preferably, if Figure 3 As shown, the enclosure baffle 2 is placed in the baffle sliding groove 102, and the enclosure baffle 2 slides down the baffle sliding groove 102 into the water by gravity and sinks to the river bottom 6. The enclosure baffle 2 is made of arc-shaped steel plate, and ribs 201 are added to the back of the steel plate to increase the strength and provide good stress conditions. Wing plates 202 that match the size of the baffle sliding groove 102 are set on both sides, and are tightly combined with the sliding groove anti-seepage rubber pad 103.
[0030] The utility model changes the existing earth-rock cofferdam into a steel self-sealing cofferdam. Compared with the existing technology, the utility model has a safe structure and is quick to construct, and achieves the effects of occupying less river channel, having good anti-seepage effect, and not polluting the water body.
[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.
[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A steel self-sealing cofferdam for waterside construction, characterized in that: The invention comprises a steel guide rail (1) and a baffle plate (2), wherein the steel guide rail (1) has two and the two are arranged longitudinally along the surface of the bank slope (5) in parallel with each other, the lower end of the steel guide rail (1) is inserted below the surface of the river bottom (6), and the upper end extends to the bank top ground (7), the steel guide rail (1) is welded by two rectangular channel steels, one of which is a bank slope combination groove (101), and the other is a baffle sliding groove (102), the notch of the bank slope combination groove (101) is arranged toward the surface of the bank slope (5), and bank slope sealing concrete (3) is poured between the notch and the surface of the bank slope (5) so that the bank slope combination groove (101) is closed and connected to the bank slope. (5) surface, the baffle sliding groove (102) is welded on the bank slope combination groove (101), the baffle sliding grooves (102) of the two steel guide rails (1) are arranged facing each other, and the two sides of the enclosure baffle (2) are respectively provided with wing plates (202), and the wing plates (202) on both sides of the enclosure baffle (2) are respectively slidably connected in the grooves of the two baffle sliding grooves (102), and a plurality of enclosure baffles (2) are connected end to end between the two baffle sliding grooves (102) from bottom to top until the enclosure baffle (2) reaches the height of the bank top ground (7) to enclose a closed construction site between the enclosure baffle (2) and the bank slope (5).
2. A steel self-sealing cofferdam for waterside construction according to claim 1, characterized in that: River bottom sealing concrete (4) is poured between the bottommost enclosure baffle (2) and the river bottom (6) so that the enclosure baffle (2) is closed and connected to the surface of the river bottom (6).
3. A steel self-sealing cofferdam for waterside construction according to claim 2, characterized in that: A concrete lifting ring (401) is pre-buried on the top of the river bottom sealing concrete (4).
4. A steel self-sealing cofferdam for waterside construction according to claim 1, characterized in that: The enclosure baffle (2) is an arc-shaped steel plate.
5. A steel self-sealing cofferdam for waterside construction according to claim 1, characterized in that: The top of the enclosure baffle (2) is provided with a socket (203), and the bottom of one enclosure baffle (2) can be plugged into the socket (203) at the top of another enclosure baffle (2). A socket anti-seepage rubber pad (204) is provided in the socket (203), and when the bottom of one enclosure baffle (2) is plugged into the socket (203) at the top of another enclosure baffle (2), the socket anti-seepage rubber pad (204) is compressed and filled between the two.
6. A steel self-sealing cofferdam for waterside construction according to claim 1, characterized in that: A sliding groove anti-seepage rubber pad (103) is provided in the baffle sliding groove (102); when the wing plate (202) is connected to the baffle sliding groove (102), the sliding groove anti-seepage rubber pad (103) is compressed and filled between the two.
7. A steel self-sealing cofferdam for waterside construction according to claim 1, characterized in that: The surface of the enclosure baffle (2) is provided with ribs (201).
8. A steel self-sealing cofferdam for waterside construction according to claim 1, characterized in that: The surface of the enclosure baffle (2) is provided with an enclosure lifting ring (205).