Cofferdam structure for water conservancy building construction

Abstract

The utility model relates to the technical field of cofferdam structures, in particular to a cofferdam structure for water conservancy building construction, which comprises a plurality of fixing units forming the cofferdam structure, each fixing unit comprises a fixing bottom plate, and two sides of the top surface of each fixing bottom plate are fixedly connected with supporting and fixing frames. The edges of the two sides of the side faces, facing each other, of the two supporting and fixing frames are fixedly connected with inserting rail grooves. The supporting and fixing frame has the advantages that the fixing bottom plate is fixed to the water bottom through the fixing piles, the fixing piles directly penetrate through the fixing bottom plate and are driven into the water bottom through a pile driver, so that the supporting and fixing frame forms a cofferdam structure in a surrounding mode and is fixed into water flow, and due to the fact that the supporting and fixing frame is of a frame structure, water resistance is small, and stable driving is facilitated; the water retaining inserting plates are inserted into the inserting rail grooves, water retaining is directly achieved, installation is convenient, only inserting and pulling are needed, and then the space between the supporting and fixing frames is filled with filler, so that the water retaining depth is increased, the water retaining effect is improved, and the sealing performance is better.

Description

Technical Field

[0001] The utility model relates to the technical field of cofferdam structures, in particular to a cofferdam structure for water conservancy construction. Background Art

[0002] Since dry construction is required during the construction of underwater foundation pits, it is necessary to keep water and soil outside the foundation pit. At this time, steel sheet piles or other temporary structures are needed to seal the water and soil on the outside. This is the cofferdam. The steel sheet pile cofferdam uses steel sheet piles to be inserted one by one. The steel sheet piles bite each other and are finally closed into a whole to block the water and soil on the outside.

[0003] In Chinese utility model CN215857800U, a cofferdam structure for construction of water conservancy and hydropower engineering is disclosed. The cofferdam structure for construction of water conservancy and hydropower engineering is provided with a reinforcement device on the whole device, and a stabilizing plate is fixedly installed at the inner four corners of the steel frame. The steel column is installed through the middle of the upper end of the stabilizing plate. The stabilizing plate is adjusted according to the length of use. The position size of the stabilizing plate is matched with the position size of the second screw hole, so that the thread is fixedly installed to prevent the steel column from detaching. The inner four corners of the steel frame are firmly supported by the steel column, thereby improving the overall stability of the device. However, the cofferdam structure for construction of water conservancy and hydropower engineering only blocks the water flow through the steel plate. In actual use, there are still the following problems:

[0004] The connection between the steel frame of the cofferdam structure and the reinforcement device used in the construction of the water conservancy and hydropower project is fixed by bolts. However, the cofferdam construction is carried out under the impact of huge water flow, which makes it very inconvenient to connect the steel frame with the reinforcement device. Utility Model Content

[0005] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0006] Therefore, one purpose of the utility model is to provide a cofferdam structure for water conservancy construction to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0007] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a cofferdam structure for water conservancy construction construction, including a plurality of fixed units that constitute the cofferdam structure, and a plurality of the fixed units each include a fixed base plate, and both sides of the top surface of the fixed base plate are fixedly connected with supporting fixed frames, and the edges on both sides of a side surface facing each other of the two supporting fixed frames are fixedly connected with an insertion rail groove, and the inner walls of the two insertion rail grooves on both sides of the supporting fixed frames are jointly plugged with a water retaining plug plate, and both sides of the bottom surfaces of the plurality of the fixed base plates are entangled with fixed piles that penetrate the fixed base plates, and the interiors of the plurality of the supporting fixed frames are stacked with fillers, and the plurality of the fixed units are in a square shape and surround to form a cofferdam.

[0008] Preferably, any of the above schemes has two docking clamps fixedly connected to both sides of the outer side surface of the supporting and fixing frame, and the spacing between two adjacent outer walls of the insertion rail groove is adapted to the distance between the two docking clamps.

[0009] The technical effect achieved by adopting the above solution is that at the corners of the cofferdam structure, adjacent supporting and fixing frames can be tightly docked together through the spacing between the two docking clamps and the inserted rail grooves, thereby improving the connection strength.

[0010] Preferably, any of the above schemes has reinforcing ribs fixedly connected to the middle of both sides of the top surface of the fixed bottom plate, one side of the reinforcing rib is fixedly connected to the middle of the supporting fixed frame, and the reinforcing rib is a right triangle.

[0011] The technical effect achieved by adopting the above solution is that the water flow impact on the supporting fixed frame can be transmitted to the fixed bottom plate through the reinforcing ribs, thereby improving the supporting effect.

[0012] Preferably, the water retaining plate comprises a baffle body, a handle is fixedly connected to the top of the baffle body, a plurality of ground spikes are fixedly connected to the bottom surface of the baffle body, and the plurality of ground spikes all penetrate the bottom surface of the supporting fixed frame.

[0013] The technical effect achieved by adopting the above scheme is that the fixing effect with the bottom of the water can be improved by a plurality of ground spikes, thereby improving the overall strength.

[0014] Preferably, in any of the above schemes, the height of the baffle body is matched with the height of the supporting and fixing frame, and the thickness of the baffle body is matched with the width of the inner wall of the insertion rail groove.

[0015] The technical effect achieved by adopting the above solution is that after the baffle body is inserted, the gap of the supporting fixed frame can be completely covered.

[0016] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0017] The cofferdam structure for water conservancy construction uses fixed piles to fix the fixed bottom plate to the bottom of the water, and the fixed piles are directly driven into the bottom of the water through the fixed bottom plate by a pile driver, so that the supporting fixed frame surrounds the cofferdam structure and is fixed to the water flow. Since the supporting fixed frame is a frame structure, the water resistance is small and it is easy to drive it in stably. Then, the water retaining plug plate is inserted into the insertion rail groove, so as to directly realize water retaining. It is easy to install and only needs to be plugged in and out. Then, fillers are filled in between the supporting fixed frames, so as to increase the water retaining depth, improve the water retaining effect, and make the sealing better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the fixing unit of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the water retaining plug plate of the utility model.

[0021] In the figure: 1-fixed bottom plate, 2-support fixed frame, 3-inserted rail groove, 4-water retaining plug plate, 41-retaining plate body, 42-ground spikes, 43-handle, 5-filler, 6-jointing card plate, 8-fixed pile, 9-reinforcement rib. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited to the following.

[0023] Embodiment 1: Figures 1 to 3 As shown, a cofferdam structure for water conservancy construction construction includes a plurality of fixed units that constitute the cofferdam structure, and the plurality of fixed units each include a fixed base plate 1, both sides of the top surface of the fixed base plate 1 are fixedly connected with supporting fixed frames 2, the edges of both sides of a side surface facing each other of the two supporting fixed frames 2 are fixedly connected with insertion rail grooves 3, the inner walls of the two insertion rail grooves 3 on both sides of the supporting fixed frames 2 are commonly plugged with water retaining plug plates 4, both sides of the bottom surfaces of the plurality of fixed base plates 1 are entangled with fixed piles 8 that penetrate the fixed base plates 1, the interiors of the plurality of supporting fixed frames 2 are stacked with fillers 5, and the plurality of fixed units are in a square shape and surround to form a cofferdam.

[0024] As an optional technical solution of the utility model, two docking card plates 6 are fixedly connected to both sides of the outer side surface of the supporting and fixing frame 2, and the spacing between the outer walls of two adjacent inserted rail grooves 3 is adapted to the distance between the two docking card plates 6, so that at the corners of the cofferdam structure, adjacent supporting and fixing frames 2 can be tightly docked together through the spacing between the two docking card plates 6 and the inserted rail grooves 3, thereby improving the connection strength.

[0025] As an optional technical solution of the utility model, reinforcing ribs 9 are fixedly connected to the middle parts of both sides of the top surface of the fixed bottom plate 1, one side of the reinforcing rib 9 is fixedly connected to the middle part of the supporting fixed frame 2, and the reinforcing rib 9 is a right triangle. The water flow impact on the supporting fixed frame 2 can be transmitted to the fixed bottom plate 1 through the reinforcing rib 9, thereby improving the supporting effect.

[0026] As an optional technical solution of the present utility model, the water retaining plug 4 includes a baffle body 41, a handle 43 is fixedly connected to the top of the baffle body 41, and a plurality of ground spikes 42 are fixedly connected to the bottom surface of the baffle body 41. The plurality of ground spikes 42 all penetrate the bottom surface of the supporting fixed frame 2. The handle 43 is used to facilitate pulling and pulling the baffle body 41. The plurality of ground spikes 42 can improve the fixing effect with the bottom of the water and improve the overall strength.

[0027] As an optional technical solution of the present invention, the height of the baffle body 41 is adapted to the height of the supporting and fixing frame 2, and the thickness of the baffle body 41 is adapted to the width of the inner wall of the insertion rail groove 3, so that the baffle body 41 can completely cover the gap of the supporting and fixing frame 2 after being inserted.

[0028] A cofferdam structure for water conservancy construction, the working principle is as follows:

[0029] 1) Fix the fixed bottom plate 1 to the bottom of the water by means of fixed piles 8, and directly drive the fixed piles 8 through the fixed bottom plate 1 into the bottom of the water by means of a pile driver, so that the supporting fixed frame 2 surrounds the structure of a cofferdam and is fixed in the water flow;

[0030] 2) inserting the water retaining plate 4 into the insertion rail groove 3, thereby directly achieving water retaining;

[0031] 3) Filling material 5 is then filled between the supporting and fixing frames 2 to increase the water retaining depth and improve the water retaining effect.

[0032] To sum up, in the cofferdam structure for water conservancy construction, the fixed base plate 1 is fixed to the bottom of the water by the fixed piles 8, and the fixed piles 8 are directly driven into the bottom of the water through the fixed base plate 1 by a pile driver, so that the supporting fixed frame 2 surrounds the cofferdam structure and is fixed to the water flow. Since the supporting fixed frame 2 is a frame structure, the water resistance is small, which is convenient for stable driving. Then the water retaining plate 4 is inserted into the insertion rail groove 3, so as to directly realize water retaining. It is easy to install and only needs to be plugged in and out. Then, the filler 5 is filled in between the supporting fixed frames 2, so as to increase the water retaining depth, improve the water retaining effect, and make the sealing better.

[0033] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cofferdam structure for water conservancy construction, characterized in that: The invention comprises a plurality of fixed units constituting a cofferdam structure, wherein the plurality of fixed units all comprise a fixed bottom plate (1), both sides of the top surface of the fixed bottom plate (1) are fixedly connected with a supporting fixed frame (2), both edges of the two sides of the mutually facing side surfaces of the two supporting fixed frames (2) are fixedly connected with an insertion rail groove (3), the inner walls of the two insertion rail grooves (3) on both sides of the supporting fixed frames (2) are jointly plugged with a water retaining plug plate (4), both sides of the bottom surface of the plurality of fixed bottom plates (1) are entangled with fixed piles (8) penetrating the fixed bottom plates (1), the interiors of the plurality of supporting fixed frames (2) are stacked with fillers (5), and the plurality of fixed units are in a square shape and surround to form a cofferdam.

2. A cofferdam structure for water conservancy construction according to claim 1, characterized in that: Two docking clamping plates (6) are fixedly connected to both sides of the outer side surface of the supporting fixed frame (2), and the distance between the outer walls of two adjacent insertion rail grooves (3) is adapted to the distance between the two docking clamping plates (6).

3. A cofferdam structure for water conservancy construction according to claim 2, characterized in that: Reinforcing ribs (9) are fixedly connected to the middle of both sides of the top surface of the fixed bottom plate (1), one side of the reinforcing rib (9) is fixedly connected to the middle of the supporting fixed frame (2), and the reinforcing rib (9) is a right triangle.

4. A cofferdam structure for water conservancy construction according to claim 3, characterized in that: The water retaining plug plate (4) comprises a retaining plate body (41), a handle (43) is fixedly connected to the top of the retaining plate body (41), and a plurality of ground spikes (42) are fixedly connected to the bottom surface of the retaining plate body (41), and the plurality of ground spikes (42) all penetrate the bottom surface of the supporting fixed frame (2).

5. A cofferdam structure for water conservancy construction according to claim 4, characterized in that: The height of the baffle body (41) is matched to the height of the supporting and fixing frame (2), and the thickness of the baffle body (41) is matched to the width of the inner wall of the insertion rail groove (3).

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