Underwater caisson type water retaining cofferdam

Abstract

The utility model relates to the technical field of water retaining cofferdams, and provides an underwater caisson type water retaining cofferdam which is characterized in that the underwater caisson type water retaining cofferdam comprises a plugging plate, side plates and a water facing plate, and the length direction of the plugging plate is perpendicular to the water flow direction; the side plates are arranged at the two ends of the plugging plate; the water receiving plates are arranged at the ends, away from the plugging plate, of the side plates, the included angle between each water receiving plate and the corresponding side plate is an obtuse angle, and the ends, away from the side plates, of the two water receiving plates are spliced together in a sealed mode. By means of the technical scheme, the problems that in the related technology, an earth rock cofferdam is constructed through layered filling and compaction of earth rock materials, the work amount is large, and the method is only suitable for the conditions of shallow water depth and slow water flow are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water retaining cofferdams, and specifically to an underwater caisson type water retaining cofferdam. Background Art

[0002] Water retaining cofferdam is a temporary hydraulic structure commonly used in water conservancy projects. Its main function is to isolate river water or other water sources during construction and provide a dry working environment for the construction of water conservancy facilities (such as dams, bridges, water diversion channels, etc.). At present, earth-rock cofferdams are generally constructed by layered filling and compacting of earth-rock materials. The project volume is large and it is only suitable for shallow water depths and slow water flows. Utility Model Content

[0003] The utility model proposes an underwater caisson type water retaining cofferdam, which solves the problem in the related art that the earth-rock cofferdam is constructed by layered filling and compacting earth-rock materials, the engineering workload is large, and the cofferdam is only applicable to shallow water depths and slow water flows.

[0004] The technical solution of the utility model is as follows: the underwater caisson type water retaining cofferdam, the key is: including,

[0005] A blocking plate, wherein the length direction of the blocking plate is arranged perpendicular to the water flow direction;

[0006] Side plates, which are arranged at both ends of the blocking plate;

[0007] A water-facing plate is provided at one end of the side plate away from the blocking plate, the angle between the water-facing plate and the side plate is an obtuse angle, and two water-facing plates are sealed and spliced ​​together at one end away from the side plate.

[0008] Also includes,

[0009] Support columns, the blocking plate and the side plate, the side plate and the water-facing plate, and the two water-facing plates are all sealed and connected by means of the support columns;

[0010] A supporting cross bar is provided on the inner sides of the blocking plate, the side plate and the water-facing plate, and is arranged between two adjacent supporting columns.

[0011] The blocking plate is detachably connected to the supporting column, the side plate is detachably connected to the supporting column, the water-facing plate is detachably connected to the supporting column, and the supporting cross bar is detachably connected to the supporting column.

[0012] It also includes a first reinforcing rod, the length direction of which is perpendicular to the water flow direction, and the first reinforcing rod is arranged between the two supporting columns close to the water-facing plate.

[0013] It also includes a second reinforcing rod, which is arranged between the first reinforcing rod and the supporting cross rod located on the inner side of the water-facing plate. The number of the second reinforcing rods is at least two, and all of the second reinforcing rods are arranged along the length direction of the first reinforcing rod.

[0014] The first reinforcing rod is detachably connected to the supporting column, the second reinforcing rod is detachably connected to the first reinforcing rod, and the second reinforcing rod is detachably connected to the supporting crossbar.

[0015] The water facing surface of the support column located between the two water facing plates is provided with a guide slope, and the guide slope and the outer side surface of the water facing plate are on the same vertical plane.

[0016] It also includes a bearing seat, which is located outside the blocking plate and is used to place a counterweight block. The bearing seat and the supporting column are detachably connected.

[0017] It also includes a reinforcing rod, which is arranged between the bearing seat and the supporting column.

[0018] It also includes a pin shaft. A positioning hole is opened on the bearing seat. The pin shaft is arranged at the positioning hole and is used to lock the bearing seat with the soil below it.

[0019] The working principle and beneficial effects of the utility model are as follows: the length direction of the blocking plate is perpendicular to the water flow direction; side plates are provided at both ends of the blocking plate; a water-receiving plate is provided at the end of the side plate away from the blocking plate, the angle between the water-receiving plate and the side plate is an obtuse angle, and the ends of the two water-receiving plates away from the side plates are sealed and spliced ​​together. The blocking plate, the side plates and the water-receiving plates at both ends are used to enclose a closed working space, which can be fixed at the required position. Compared with the construction of an earth-rock cofferdam, the engineering workload can be greatly reduced, and by selecting different types of blocking plates, side plates and water-receiving plates, the resulting water retaining cofferdam can be suitable for different water depths and water flows. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0021] Figure 1 It is a top view of the utility model.

[0022] Figure 2 It is a top view of the connection between the supporting column, the supporting cross bar, the first reinforcing bar and the second reinforcing bar in the utility model.

[0023] Figure 3 This is a front view of the connection between the bearing seat and the supporting column in the utility model.

[0024] In the figure: 1. blocking plate, 2. side plate, 3. water-facing plate, 4. supporting column, 5. supporting cross bar, 6. first reinforcing rod, 7. second reinforcing rod, 8. guide slope, 9. bearing seat, 10. reinforcing pull rod, 11. pin shaft. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0026] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0027] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] Example, see Figure 1 , which is an embodiment of the utility model, proposes an underwater caisson-type water retaining cofferdam, including a blocking plate 1, a side plate 2, and a water-facing plate 3. The length direction of the blocking plate 1 is arranged perpendicular to the water flow direction; the side plates 2 are arranged at both ends of the blocking plate 1; the water-facing plate 3 is arranged at the end of the side plate 2 away from the blocking plate 1, and the angle between the water-facing plate 3 and the side plate 2 is an obtuse angle, and the ends of the two water-facing plates 3 away from the side plates 2 are sealed and spliced ​​together.

[0030] Furthermore, it also includes support columns 4 and support cross bars 5. The blocking plate 1 and the side plate 2, the side plate 2 and the water-facing plate 3, and the two water-facing plates 3 are all sealed and connected by means of support columns 4. There are support cross bars 5 on the inner sides of the blocking plate 1, the side plate 2, and the water-facing plate 3, and the support cross bars 5 are arranged between two adjacent support columns 4. The support columns 4 and the support cross bars 5 are connected to form a firm support frame. The blocking plate 1, the side plate 2, and the water-facing plate 3 are all installed on the same support frame, and the connection is more firm and reliable, and the stability is better.

[0031] Furthermore, the blocking plate 1 is detachably connected to the supporting column 4, the side plate 2 is detachably connected to the supporting column 4, the water-facing plate 3 is detachably connected to the supporting column 4, and the supporting crossbar 5 is detachably connected to the supporting column 4. When not in use, the blocking plate 1, the side plate 2, the water-facing plate 3 and the supporting column 4 are all disassembled. When they are needed, they are first transported to the site and then assembled together, which is convenient for transportation and placement and occupies less space.

[0032] Furthermore, if Figure 1 and Figure 2 As shown, it also includes a first reinforcing rod 6, the length direction of the first reinforcing rod 6 is perpendicular to the water flow direction, and the first reinforcing rod 6 is arranged between two supporting columns 4 near the water-facing plate 3. The right ends of the front and rear water-facing plates 3 are connected to the side plate 2 through a supporting column 4. The water-facing plate 3 is directly in contact with the water flow and is subjected to a large impact force. The front and rear supporting columns 4 located at the right end of the water-facing plate 3 are connected together by the first reinforcing rod 6, which can further improve the stability of the water-facing plate 3.

[0033] Furthermore, if Figure 1 and Figure 2 As shown, the second reinforcing rod 7 is further included, and the second reinforcing rod 7 is arranged between the first reinforcing rod 6 and the supporting cross bar 5 located on the inner side of the water-facing plate 3. The number of the second reinforcing rods 7 is at least two, and all the second reinforcing rods 7 are arranged along the length direction of the first reinforcing rod 6. By connecting the first reinforcing rod 6 and the supporting cross bar 5 together using a plurality of second reinforcing rods 7, the bearing capacity of the water-facing plate 3 can be improved, and the stability of the water-facing plate 3 during use can be further improved.

[0034] Furthermore, the first reinforcing rod 6 is detachably connected to the supporting column 4, the second reinforcing rod 7 is detachably connected to the first reinforcing rod 6, and the second reinforcing rod 7 is detachably connected to the supporting cross bar 5. When not in use, the supporting column 4, the first reinforcing rod 6, and the second reinforcing rod 7 are all disassembled. When they are needed, they are first transported to the site and then assembled together, which is convenient for transportation and placement and occupies less space.

[0035] Furthermore, if Figure 1 and Figure 2As shown, the water-facing surface of the support column 4 between the two water-facing plates 3 is provided with a guide slope 8, and the guide slope 8 is on the same vertical plane as the outer side surface of the water-facing plate 3. Taking the flow of water from left to right as an example, the left end of the support column 4 between the left ends of the front and rear water-facing plates 3 is provided with two front and rear guide slopes 8, the front guide slope 8 is on the same vertical plane as the outer side surface of the front water-facing plate 3, and the rear guide slope 8 is on the same vertical plane as the outer side surface of the rear water-facing plate 3, so that the water flow can be quickly diverted to the front and rear sides along the guide slope 8, reducing the impact force on the leftmost support column 4, thereby reducing the force exerted by the support column 4 on the water-facing plate 3, and having better stability.

[0036] Furthermore, if Figure 3 As shown, it also includes a bearing seat 9, which is located outside the blocking plate 1 and is used to place a counterweight block. The bearing seat 9 is detachably connected to the support column 4. When needed, placing a counterweight block on the bearing seat 9 can increase the overall counterweight of the water retaining enclosure, more stably fix the blocking plate 1, the side plate 2 and the water-facing plate 3 in the required position, and make the working space safer and more stable.

[0037] Furthermore, if Figure 3 As shown, it also includes a reinforcing rod 10, which is arranged between the bearing seat 9 and the supporting column 4. The bearing seat 9 and the supporting column 4 are connected together by the reinforcing rod 10, so that the connection between the bearing seat 9 and the supporting column 4 is more firm and reliable, and the stability is better.

[0038] Furthermore, if Figure 3 As shown, a pin 11 is also included. A positioning hole is opened on the bearing seat 9. The pin 11 is arranged at the positioning hole to lock the bearing seat 9 with the soil below it. When in use, the bearing seat 9 is fixed to the soil at a desired position by the pin 11, which can further improve the stability of the bearing seat 9, thereby improving the stability of the entire water retaining cofferdam.

[0039] In this embodiment, taking the case where water flows from left to right as an example, the length direction of the blocking plate 1 is arranged along the front-to-back direction, the left ends of the front and rear water-facing plates 3 are sealed and connected together through a support column 4, and the right end of each water-facing plate 3 is sealed and connected to the blocking plate 1 through the support column 4 and the side plate 2. The angle between the water-facing plate 3 and the side plate 2 is an obtuse angle, and the number of the side plates 2 and the support columns 4 is selected as needed. The front and rear support columns 4 at the right end of the water-facing plate 3 are connected together by a first reinforcing rod 6, and the first reinforcing rod 6 is connected to the support crossbar 5 by a plurality of second reinforcing rods 7.

[0040] A closed working space is formed by using the blocking plate 1, the side plate 2, the water-facing plate 3, the supporting column 4, the supporting cross bar 5, the first reinforcing rod 6 and the second reinforcing rod 7. The lower end of the supporting column 4 is inserted into the soil, and the bearing seat 9 is fixed on the soil at the required position by the pin 11. A counterweight is placed on the bearing seat 9, which also plays a positioning role, so that the earth-retaining cofferdam is fixed at the required position. The water in the water-retaining cofferdam can be drained and the internal construction can be carried out. Compared with the construction of an earth-rock cofferdam, the amount of engineering work can be greatly reduced. Moreover, by selecting different types of blocking plates 1, side plates 2 and water-facing plates 3, the resulting water-retaining cofferdam can be suitable for conditions of different water depths and water flows.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. Underwater caisson type water retaining cofferdam, characterized by: include, A blocking plate (1), wherein the length direction of the blocking plate (1) is arranged perpendicular to the water flow direction; Side plates (2), the side plates (2) being arranged at both ends of the blocking plate (1); A water-facing plate (3) is provided at one end of the side plate (2) away from the blocking plate (1), the angle between the water-facing plate (3) and the side plate (2) is an obtuse angle, and the two water-facing plates (3) are sealed and spliced ​​together at one end away from the side plate (2).

2. The underwater caisson type water retaining cofferdam according to claim 1 is characterized in that: Also includes, Support columns (4), the blocking plate (1) and the side plate (2), the side plate (2) and the water-facing plate (3), and the two water-facing plates (3) are all sealed and connected by means of the support columns (4); A supporting cross bar (5) is provided on the inner sides of the blocking plate (1), the side plate (2) and the water-facing plate (3), and the supporting cross bar (5) is arranged between two adjacent supporting columns (4).

3. The underwater caisson type water retaining cofferdam according to claim 2 is characterized in that: The blocking plate (1) and the supporting column (4) are detachably connected, the side plate (2) and the supporting column (4) are detachably connected, the water-facing plate (3) and the supporting column (4) are detachably connected, and the supporting cross bar (5) and the supporting column (4) are also detachably connected.

4. The underwater caisson type water retaining cofferdam according to claim 2 is characterized in that: It also comprises a first reinforcing rod (6), the length direction of the first reinforcing rod (6) being arranged perpendicular to the water flow direction, and the first reinforcing rod (6) being arranged between the two supporting columns (4) close to the water-facing plate (3).

5. The underwater caisson type water retaining cofferdam according to claim 4 is characterized in that: It also includes a second reinforcing rod (7), which is arranged between the first reinforcing rod (6) and the supporting cross rod (5) located on the inner side of the water-facing plate (3), and the number of the second reinforcing rods (7) is at least two, and all the second reinforcing rods (7) are arranged along the length direction of the first reinforcing rod (6).

6. The underwater caisson type water retaining cofferdam according to claim 5, characterized in that: The first reinforcing rod (6) is detachably connected to the supporting column (4), the second reinforcing rod (7) is detachably connected to the first reinforcing rod (6), and the second reinforcing rod (7) is also detachably connected to the supporting crossbar (5).

7. The underwater caisson type water retaining cofferdam according to claim 2, characterized in that: The water-facing surface of the support column (4) located between the two water-facing plates (3) is provided with a guide slope (8), and the guide slope (8) and the outer side surface of the water-facing plate (3) are located on the same vertical plane.

8. The underwater caisson type water retaining cofferdam according to claim 2, characterized in that: It also comprises a bearing seat (9), the bearing seat (9) being located outside the blocking plate (1) and being used for placing a counterweight, and the bearing seat (9) and the supporting column (4) being detachably connected.

9. The underwater caisson type water retaining cofferdam according to claim 8, characterized in that: It also comprises a reinforcing rod (10), wherein the reinforcing rod (10) is arranged between the bearing seat (9) and the supporting column (4).

10. The underwater caisson type water retaining cofferdam according to claim 8, characterized in that: It also comprises a pin shaft (11), a positioning hole is opened on the bearing seat (9), and the pin shaft (11) is arranged at the positioning hole to lock the bearing seat (9) with the soil located below it.

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