Reinforcing structure of deepwater foundation pit steel sheet pile cofferdam

Abstract

The utility model discloses a reinforcing structure of a deepwater foundation pit steel sheet pile cofferdam, which relates to the technical field of cofferdam reinforcement and comprises a water baffle, a steel frame pile is sleeved on the outer surface of the water baffle, a plurality of pins are fixedly mounted on the bottom surface of the steel frame pile, splicing mechanisms are arranged on the surfaces of two sides of the steel frame pile, and each splicing mechanism comprises a splicing plate and a plurality of connecting plates, the splicing mechanism further comprises a fixing assembly, the fixing assembly comprises a joint pipe, a containing cavity is formed in the joint pipe, a movable sleeve is arranged in the containing cavity, a clamping strip is fixedly installed at the center of the joint pipe, and the clamping strip is fixedly connected with the joint pipe. And two plug columns are arranged on the side surface of the clamping strip, a shifting piece is arranged on the surface of one side of the sleeve, and a fixing plate is fixedly installed on the surface of one side of the joint pipe. In the scheme, by arranging the splicing mechanism, rapid connection and fixation between the steel frame piles are achieved, and the overall stability and bearing capacity of the cofferdam are improved.

Description

Technical Field

[0001] The utility model relates to the field of cofferdam reinforcement, in particular to a reinforcement structure of a deep-water foundation pit steel sheet pile cofferdam. Background Art

[0002] In the construction of deep-water foundation pits, the reinforcement of steel sheet pile cofferdams has always been a key concern for construction safety. Traditional cofferdam structures are often stretched in complex hydrological environments and geological conditions, and are easily affected by strong water flow impact and soil pressure, causing deformation or even damage. This not only affects the construction progress, but also poses a serious threat to the safety of construction workers. Therefore, there is an urgent need for a structure that can effectively reinforce the steel sheet pile cofferdam to improve its stability under water flow impact and soil pressure, ensure construction safety, and provide strong guarantees for the stable construction of deep-water foundation pits.

[0003] After searching, the prior art announcement number is CN214783990U, which discloses a reinforcement structure of a deep water foundation pit steel sheet pile cofferdam. Through one or more water retaining plates, an additional layer of waterproof structure can be added on the outside of the cofferdam, thereby increasing the waterproof effect of the cofferdam. The water on the outside of the cofferdam can be injected into the water storage channel, and the water energy can exert a downward force on the steel sheet piles, thereby increasing the stability of the cofferdam. This solves the problem that the cofferdam in the prior art has poor sealing, which easily causes external water to enter the cofferdam and affect the construction efficiency.

[0004] Therefore, based on the above search and in combination with the prior art, the above equipment still has the following problems during use. Because the installation of the steel sheet piles on both sides relies on the hook for fixation, it is easy to cause the hooking effect during the installation and disassembly process, resulting in difficulty in removing a single set of water retaining plates, causing inconvenience in use. Utility Model Content

[0005] The utility model aims to provide a reinforcement structure of a deep-water foundation pit steel sheet pile cofferdam to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A reinforcement structure of a deep-water foundation pit steel sheet pile cofferdam comprises a water retaining plate, the outer surface of which is sleeved with steel frame piles, the bottom surface of which is fixedly mounted with a plurality of pins, and both side surfaces of the steel frame piles are provided with splicing mechanisms.

[0008] Furthermore, the splicing mechanism includes: a splicing plate, a bottom surface of the splicing plate is provided with a limiting protrusion, the limiting protrusion is a semicircular structure, and the splicing mechanism also includes a fixing component.

[0009] Furthermore, the fixing assembly includes: a coupling tube, a receiving cavity is provided inside the coupling tube, a movable sleeve is provided inside the receiving cavity, a clamping strip is fixedly installed at the center of the coupling tube, and two plugs are provided on the side surface of the clamping strip.

[0010] Furthermore, a plectrum is provided on one side surface of the sleeve, a fixing plate is fixedly mounted on one side surface of the coupling tube, and threaded holes that cooperate with each other are provided on one side surface of the fixing plate and the plectrum.

[0011] Furthermore, a movable limiting plate is provided at the center of each of the plug pins, a clamping block is fixedly mounted on the upper surface of the limiting plate, and a slot for cooperating with the clamping block is provided on one side surface of the plug pin.

[0012] Furthermore, a socket is fixedly mounted on one side surface of the water baffle, and a plug hole is opened at the center of the socket.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In this scheme, by providing a splicing mechanism, during use, since a socket is fixedly installed on one side surface of the steel frame pile, and a plug hole is opened at the center of the socket, the socket can be used to connect other cofferdam structures or fixed equipment, and can be quickly connected and fixed with other components through the plug hole, so as to improve the stability of the equipment in the installed state and make the installation faster and more convenient;

[0015] 2. In this scheme, by providing a fixing component, the steel frame piles can be quickly connected and fixed through the splicing mechanism and the fixing component during use, thereby improving the overall stability and bearing capacity of the cofferdam and ensuring the stability of the cofferdam under different geological conditions. The design of the socket is convenient for connection and fixation with other components, further enhancing the stability of the cofferdam. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the reinforcement plate structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the fixing assembly of the utility model;

[0019] Figure 4 It is a schematic diagram of the steel frame pile structure of the utility model.

[0020] In the figure: 1. water retaining plate; 2. steel frame pile; 3. I-beam; 4. connecting pipe; 5. socket; 6. clamping strip; 7. fixing plate; 8. limiting protrusion; 9. plug hole; 10. splicing plate; 11. limiting plate; 12. pin; 13. plug column; 14. pick; 15. sleeve; 16. storage cavity; 17. slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example: See Figures 1 to 4 A reinforcement structure of a deep-water foundation pit steel sheet pile cofferdam comprises a water retaining plate 1, the outer surface of the water retaining plate 1 is sleeved with a steel frame pile 2, the steel frame pile 2 is composed of a plurality of cross beams and longitudinal beams, the cross beams and longitudinal beams are cross-connected to form a mesh structure, the cross beams and longitudinal beams are made of high-strength steel, and have strong impact resistance and bearing capacity, a plurality of pins 12 are fixedly installed on the bottom of the steel frame pile 2, the pins 12 penetrate into the bottom of the riverbed, and are connected with the steel frame pile 2 to provide additional support, and a movable limiting plate 11 is arranged at the center of each pin 12 to limit A card block is fixedly installed on the upper surface of the plate 11, and a slot 17 for cooperating with the card block is provided on one side surface of the pin 12. A splicing mechanism is provided on both side surfaces of the steel frame pile 2, and the splicing mechanism includes: a splicing plate 10, a limit convex block 8 is provided on the bottom surface of the splicing plate 10, and the limit convex block 8 is a semicircular structure. When two steel frame piles 2 are spliced, the limit convex blocks 8 on the side can be spliced ​​into a complete cylinder. A sleeve seat 5 is fixedly installed on one side surface of the water retaining plate 1, and a plug hole 9 is provided at the center of the sleeve seat 5. The splicing mechanism also includes a fixing component;

[0023] The fixing assembly includes: a coupling tube 4, a receiving chamber 16 is provided inside the coupling tube 4, a round hole connected to the receiving chamber 16 is provided on the top and bottom surfaces of the coupling tube 4, a slide groove connected to the receiving chamber 16 is also provided on one side surface of the coupling tube 4, a movable sleeve 15 is provided inside the receiving chamber 16, a paddle 14 is provided on one side surface of the sleeve 15, a fixing plate 7 is fixedly installed on one side surface of the coupling tube 4, threaded holes matching each other are provided on one side surface of the fixing plate 7 and the paddle 14, the sleeve 15 is fixed by bolts passing through the fixing plate 7 and the paddle 14, a clamping strip 6 is fixedly installed at the center of the coupling tube 4, and two plugs 13 matching the plug hole 9 are provided on the side surface of the clamping strip 6.

[0024] During use, the staff inserts the water baffle 1 into the gap at the bottom of the steel frame pile 2, and then pushes the multiple limiting plates 11 at the bottom of the steel frame pile 2 to one side, uses the limiting plates 11 to limit the bottom surface of the water baffle 1, and engages the block above the limiting plate 11 with the slot 17 to complete the fixation, and combines the water baffle 1 and the steel frame pile 2 into a reinforcement plate, and then splices the two groups of reinforcement plates through the splicing plate 10 on the side surface, so that the limiting protrusions 8 under the two reinforcement plates form a complete cylindrical protrusion, and then installs the joint pipe 4 at the joint between the two reinforcement plates, and uses the plug on the side of the joint pipe 4 to fix the water baffle 1. 13 is inserted into the plug hole 9 to form a preliminary positioning, and by pulling the picks 14 at both ends to both sides, the sleeves 15 at both ends of the coupling tube 4 are pulled out from the inside of the storage cavity 16, and the cylindrical protrusions on both sides are inserted therein. At this time, because the two picks 14 have reached the specified position, the threaded holes on the side surfaces of the picks 14 are relative to the threaded holes opened on the side surfaces of the fixing plate 7, and the two sleeves 15 can be limited by passing bolts through the threaded holes. Multiple reinforcement plates can be installed by this method, and an I-beam 3 for internal support is fixedly installed inside for assistance, so that the equipment has the characteristics of faster installation speed and stronger stability.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A reinforcement structure for a deep-water foundation pit steel sheet pile cofferdam, comprising a water retaining plate (1), characterized in that: The outer surface of the water retaining plate (1) is sleeved with a steel frame pile (2), a plurality of pins (12) are fixedly mounted on the bottom surface of the steel frame pile (2), and both side surfaces of the steel frame pile (2) are provided with a splicing mechanism; The splicing mechanism comprises: a splicing plate (10), a bottom surface of the splicing plate (10) being provided with a limiting protrusion (8), the limiting protrusion (8) being a semicircular structure, and the splicing mechanism further comprising a fixing component; The fixing assembly comprises: a connecting tube (4), a receiving cavity (16) is provided inside the connecting tube (4), a movable sleeve (15) is provided inside the receiving cavity (16), a clamping strip (6) is fixedly installed at the center of the connecting tube (4), and two plugs (13) are provided on the side surface of the clamping strip (6); A sleeve seat (5) is fixedly mounted on one side surface of the water baffle (1), and a plug hole (9) is provided at the center of the sleeve seat (5).

2. The reinforcement structure of a deepwater foundation pit steel sheet pile cofferdam according to claim 1 is characterized in that: A paddle (14) is provided on one side surface of the sleeve (15), a fixing plate (7) is fixedly mounted on one side surface of the coupling tube (4), and threaded holes that cooperate with each other are provided on one side surface of the fixing plate (7) and the paddle (14).

3. The reinforcement structure of a deepwater foundation pit steel sheet pile cofferdam according to claim 1 is characterized in that: A movable limiting plate (11) is provided at the center of each of the plug pins (12), a clamping block is fixedly mounted on the upper surface of the limiting plate (11), and a slot (17) for cooperating with the clamping block is provided on one side surface of the plug pin (12).

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