Assembled steel sheet pile crown beam

Abstract

This utility model discloses a prefabricated steel sheet pile cap beam, relating to the field of foundation pit engineering construction technology. It includes several steel sheet pile bodies arranged equidistantly and alternately. A first channel steel and a second channel steel are respectively installed on the front and rear ends of the steel sheet pile bodies. Several limiting steel rings are installed equidistantly between the first and second channel steels. Several sets of fixing components are installed equidistantly on the ends of the first and second channel steels away from the steel sheet pile bodies. Several fixing components installed on the outer wall of the first channel steel are fixedly connected to several fixing components installed on the outer wall of the second channel steel via several pin components. This utility model utilizes a ratchet block that automatically engages with the ratchet groove under the elastic force of a first spring, forming a reliable one-way self-locking structure, effectively preventing accidental loosening during operation. The shock-absorbing plate absorbs the impact force from hammering, and the combined effect of the force-bearing plate and the second spring makes the pin installation more stable.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit construction, specifically a prefabricated steel sheet pile cap beam. Background Technology

[0002] With the rapid development of urban infrastructure construction, deep foundation pit engineering has been widely used in projects such as subways, underground passages, and underground utility tunnels. Steel sheet pile support structures are widely used in foundation pit support, retaining walls, and water conservancy revetment projects due to their advantages such as fast construction speed, small impact on the surrounding environment, and reusability. In order to improve the overall stability and bearing capacity of the support structure, steel sheet piles usually need to be connected with capping beams to form a closed and stable force system.

[0003] Traditional cap beam construction methods mainly use cast-in-place concrete structures. Although they have good integrity and load-bearing capacity, they have long construction cycles, are greatly affected by the weather, and have high requirements for formwork support, rebar binding and concrete curing. During construction, problems such as difficulty in quality control, complex construction procedures and high safety risks are likely to occur, especially when constructing in narrow sites or areas with high groundwater levels.

[0004] In recent years, prefabricated construction technology has received widespread attention in building engineering, especially for its significant advantages in improving construction efficiency, reducing on-site work, and enhancing the stability of component quality. However, the application of the prefabricated concept to steel sheet pile cap beam connection structures is still in the exploratory stage. Existing technologies lack systematic design and unified standards for the connection methods, construction processes, and stress performance of prefabricated steel sheet pile cap beam structures, making it difficult to meet the comprehensive requirements for construction efficiency, structural performance, and durability in complex engineering environments.

[0005] A search revealed that the existing technology publication number CN218643379U discloses a prefabricated steel pipe pile cap beam, suitable for the prefabricated installation of steel pipe pile cap beams. It includes steel pipe piles, channel steel, threaded rods, and nuts. The channel steel has through holes, and the threaded rods pass through these holes. The channel steel is located on the side of the steel pipe pile, and nuts at both ends of the threaded rods fix the channel steel to the side of the steel pipe pile. The prefabricated steel pipe pile cap beam aims to shorten the construction period, reduce construction procedures, and lower project costs. This scheme uses threaded rods to place two sets of double-section channel steel on both sides of the steel pipe pile, and then uses nuts to increase the force on the threaded rods, ensuring that the double-section channel steel on both sides of the steel pipe pile is tightly attached to the steel pipe pile. Finally, all the dispersed steel pipe piles are connected into a whole.

[0006] Therefore, based on the above search and combined with existing technology, there is an existing prefabricated steel pipe pile cap beam. This device relies on the precise alignment and installation of the threaded rod on site. This process requires extremely high construction accuracy, which is difficult to guarantee in the actual construction environment. The construction of steel pipe piles itself has a certain verticality deviation. In addition, the accumulation of channel steel hole position processing error and installation error often leads to the threaded rod not being able to be inserted smoothly or uneven stress after insertion. Utility Model Content

[0007] The purpose of this utility model is to provide a prefabricated steel sheet pile cap beam to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: It includes several sheet pile bodies, which are arranged equidistantly and alternately. A first channel steel and a second channel steel are respectively installed on the front and rear ends of the sheet pile bodies. A pre-set hole is provided on the front end of each sheet pile body near its top. Several limiting steel rings are installed equidistantly between the first and second channel steels, each corresponding to a pre-set hole. Several sets of fixing components are installed equidistantly on the ends of the first and second channel steels away from the sheet pile bodies, each corresponding to a pre-set hole. The fixing components installed on the outer wall of the first channel steel are fixedly connected to the fixing components installed on the outer wall of the second channel steel via several pin assemblies.

[0009] As a further embodiment of this utility model, a V-shaped port is provided at the bottom of several sheet pile bodies, and the bottom of the V-shaped port is ground into a rounded corner.

[0010] As a further embodiment of this utility model, the fixing component includes a mounting cylinder, and a plurality of connecting ears are provided at equal intervals around the rear circumference of the outer wall of the mounting cylinder.

[0011] As a further embodiment of this utility model, the fixing component also includes a steel ring washer, which is coaxially fixedly installed on the rear end face of the mounting cylinder.

[0012] As a further embodiment of this utility model, a storage compartment is provided on the outer wall of the mounting cylinder, and a sliding column is slidably connected inside the storage compartment.

[0013] As a further embodiment of this utility model, a ratchet block is provided at the end of the sliding column near the mounting cylinder, and a blocking disc is provided at the end of the sliding column away from the mounting cylinder after passing through the side wall of the storage compartment.

[0014] As a further embodiment of this utility model, a pull ring is installed on the end face of the blocking disc away from the storage compartment, and a first spring is sleeved on the outer wall of the sliding column. The left end of the first spring abuts against the right end face of the ratchet block, and the right end of the first spring abuts against the inner wall of the right end of the storage compartment.

[0015] As a further embodiment of this utility model, the pin assembly includes a pin body, and a plurality of ratchet grooves are equidistantly provided on the outer wall of the pin body.

[0016] As a further embodiment of this utility model, a pin body is inserted and fixed between two sets of fixing components, wherein the ratchet block of one set of fixing components engages with the ratchet groove.

[0017] As a further embodiment of this utility model, a force-bearing plate is fixedly installed at the front end of the pin body, a second spring is sandwiched between the rear end face of the force-bearing plate and the front end face of the mounting cylinder, and a shock-absorbing plate is fixedly installed at the front end face of the force-bearing plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. In use, the mounting cylinder is fixed to the channel steel with bolts. When the pin body is inserted, the ratchet block automatically engages with the ratchet groove under the elastic force of the first spring, forming a reliable one-way self-locking structure, which effectively prevents accidental loosening during operation. The shock-absorbing plate absorbs the impact force from the hammer, and with the synergistic effect of the force plate and the second spring, the installation process of the pin is more stable. When disassembly is required, simply pull the pull ring to release the ratchet engagement. At this time, the second spring will automatically rebound to push out the pin body. The whole disassembly process is quick and effortless. In addition, the supporting effect of the limiting steel ring ensures the horizontal state of the channel steel, while the matching design of the protrusion of the pin body and the groove of the inner wall of the mounting cylinder effectively prevents the pin from rotating, further enhancing the stability of the overall structure.

[0020] 2. In the process of use, the V-shaped port structure at the bottom of the sheet pile body effectively reduces the contact area with the soil, significantly reduces soil resistance, and makes it easier to insert the sheet pile into the ground, greatly reducing the difficulty of construction. Several sheet pile bodies are connected to each other by hooks at the left and right ends to form a continuous overall structure. At the same time, the positioning plate pre-positions the first and second channel steels, making the overall assembly process more efficient and orderly. The precise alignment design of the preset hole and the limiting steel ring ensures the horizontal installation of the first and second channel steels, providing a stable support foundation for the entire straightening mechanism. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is an exploded view of the overall structure of this utility model;

[0023] Figure 3 This is a drawing of the structural parts of the steel sheet pile body of this utility model;

[0024] Figure 4This is a schematic diagram of the fixing component structure of this utility model;

[0025] Figure 5 This is an exploded view of the fixing component structure of this utility model;

[0026] Figure 6 This is an exploded view of the pin assembly structure of this utility model;

[0027] Figure 7 This is a cross-sectional view of the overall structure of this utility model;

[0028] Figure 8 This is a partial structural cross-sectional view of the present invention.

[0029] In the picture:

[0030] 1. Sheet pile body; 11. V-shaped port; 12. Positioning plate; 13. Pre-drilled hole;

[0031] 2. First channel steel;

[0032] 3. Second channel steel;

[0033] 4. Limiting steel ring;

[0034] 5. Fixing component; 51. Mounting cylinder; 511. Connecting lug; 512. Storage compartment; 513. Connecting ring; 52. Steel ring washer; 53. Sliding column; 531. Ratchet block; 532. Stopping disc; 533. Pull ring; 54. First spring;

[0035] 6. Pin assembly; 61. Pin body; 611. Racket groove; 612. Force plate; 62. Second spring; 63. Shock absorber. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Example 1: Please refer to Figures 1-3A prefabricated sheet pile cap beam includes several sheet pile bodies 1, which are arranged equidistantly and alternately. Specifically, each sheet pile body 1 has a hook at both ends, and the hooks on adjacent sides of two sheet pile bodies 1 are interlocked and fixed. A first channel steel 2 and a second channel steel 3 are respectively installed on the front and rear ends of the sheet pile bodies 1. Specifically, a positioning plate 12 is welded and fixed to the front end of each sheet pile body 1. The positioning plate 12 is used to place the first channel steel 2 and the second channel steel 3, facilitating the subsequent connection and fixing of the first channel steel 2, the second channel steel 3, and the sheet pile body 1. A pre-set hole 13 is opened at the front end face of the pile body 1 near the top. Several limiting steel rings 4 are installed at equal intervals between the first channel steel 2 and the second channel steel 3. The positions of the limiting steel rings 4 correspond to the positions of the pre-set holes 13. Several sets of fixing components 5 are installed at equal intervals on the end faces of the first channel steel 2 and the second channel steel 3 away from the sheet pile body 1. The positions of the fixing components 5 correspond to the positions of the pre-set holes 13. The fixing components 5 installed on the outer wall of the first channel steel 2 are fixedly connected to the fixing components 5 installed on the outer wall of the second channel steel 3 through several pin components 6.

[0038] Several sheet pile bodies 1 are provided with V-shaped ports 11 at their bottom ends. The bottom ends of the V-shaped ports 11 are ground into rounded corners. Specifically, the bottom contact surface of the V-shaped ports 11 is small, which can reduce the resistance when the sheet pile body 1 enters the soil, making it easier for the sheet pile body 1 to be inserted into the soil and reducing the difficulty of construction.

[0039] Example 2: Please refer to Figures 2-8 A prefabricated steel sheet pile cap beam differs from Embodiment 1 in that the fixing component 5 includes an installation cylinder 51. The rear end of the outer wall of the installation cylinder 51 is provided with a plurality of connecting ears 511 at equal intervals. The fixing component 5 also includes a steel ring washer 52, which is coaxially fixedly installed on the rear end face of the installation cylinder 51. Specifically, the front end face of the steel ring washer 52 is provided with a plurality of through holes at equal intervals. The installation cylinder 51 is fixedly installed on the outer wall of the first channel steel 2 or the second channel steel 3 by bolts passing through the plurality of connecting ears 511. The steel ring washer 52 is sandwiched between the installation cylinder 51 and the outer wall of the first channel steel 2 or the second channel steel 3. The steel ring washer 52 is used to buffer stress and ensure the installation stability of the installation cylinder 51.

[0040] The outer wall of the mounting cylinder 51 is provided with a storage chamber 512. Specifically, the interior of the storage chamber 512 is connected to the interior of the mounting cylinder 51. A sliding column 53 is slidably connected inside the storage chamber 512. A ratchet block 531 is provided at one end of the sliding column 53 near the mounting cylinder 51. A blocking disc 532 is provided at the other end of the sliding column 53 away from the mounting cylinder 51 after passing through the side wall of the storage chamber 512. Specifically, the blocking disc 532 is used to prevent the sliding column 53 from disengaging from the storage chamber 512. A pull ring 533 is installed on the end face of the blocking disc 532 away from the storage chamber 512. A first spring 54 is sleeved on the outer wall of the sliding column 53. The left end of the first spring 54 abuts against the right end face of the ratchet block 531, and the right end of the first spring 54 abuts against the inner wall of the right end of the storage chamber 512. Specifically, the first spring 54 applies a force to the left to the ratchet block 531.

[0041] The pin assembly 6 includes a pin body 61. The outer wall of the pin body 61 is provided with a plurality of ratchet grooves 611 at equal intervals. One pin body 61 is inserted and fixed between two sets of fixing components 5. The ratchet block 531 of one set of fixing components 5 engages with the ratchet groove 611. Specifically, the outer wall of the pin body 61 is provided with a protrusion, and the inner wall of the mounting cylinder 51 is provided with a groove. The groove has a limiting and guiding function for the protrusion, so that the pin body 61 cannot rotate on the inner wall of the mounting cylinder 51, so that the position of the ratchet groove 611 of the pin body 61 corresponds to the position of the ratchet block 531. The pin body 61 passes through the first channel steel 2, the sheet pile body 1, the limiting steel ring 4 and the second channel steel 3 in sequence, thereby fixing the first channel steel 2 and the second channel steel 3 on the front and rear sides of the sheet pile body 1. The limiting steel ring 4 plays a supporting and fixing role, ensuring the horizontal installation of the first channel steel 2 and the second channel steel 3, thereby fixing the ends of several sheet pile bodies 1 through the first channel steel 2 and the second channel steel 3.

[0042] A force-bearing plate 612 is fixedly installed at the front end of the pin body 61. A second spring 62 is sandwiched between the rear end face of the force-bearing plate 612 and the front end face of the mounting cylinder 51. A shock-absorbing plate 63 is fixedly installed at the front end face of the force-bearing plate 612. Specifically, a connecting ring 513 is provided on the front end face of the mounting cylinder 51. The rear end of the second spring 62 is welded and fixed to the end of the connecting ring 513. When the pin body 61 is in use, it is inserted into the mounting cylinder 51. By striking the shock-absorbing plate 63 with a hammer, the shock-absorbing plate 63, which is made of rubber, can buffer the impact force. The force is transmitted to the force plate 612, which pushes the pin body 61 to move inside the mounting cylinder 51. The second spring 62 is compressed, and the ratchet groove 611 and the ratchet block 531 are engaged and fixed. In this way, the two sets of fixing components 5 are connected and fixed by a pin body 61. When the pin body 61 needs to be pulled out, only the pull ring 533 of the fixing component 5 needs to be pulled to compress the first spring 54, so that the ratchet block 531 is disengaged from the ratchet groove 611 of the pin body 61. The second spring 62 releases its elastic force and pushes out the pin body 61, thereby completing the disassembly of the first channel steel 2 and the second channel steel 3.

[0043] The working principle of this utility model is as follows: When this device is in use, the V-shaped port 11 at the bottom of the sheet pile body 1 is designed as an acute angle structure with rounded corners to reduce the contact surface and reduce soil resistance, making it easier to insert during construction. Several sheet pile bodies 1 are connected to each other by hooks at the left and right ends to form a continuous arrangement. Positioning plates 12 are welded to the front and rear end faces of several sheet pile bodies 1 respectively. The first channel steel 2 and the second channel steel 3 are placed in advance by several positioning plates 12. The preset hole 13 at the top of the sheet pile body 1 is aligned with the limiting steel ring 4 to support the horizontal installation of the first channel steel 2 and the second channel steel 3. The fixing components 5 on the outer walls of the first channel steel 2 and the second channel steel 3 are connected by the pin components 6 to form an overall frame.

[0044] The mounting cylinder 51 of the fixing component 5 is fixed to the first channel steel 2 or the second channel steel 3 by bolts and steel ring washers 52. The sliding column 53 in the storage compartment 512 pushes the ratchet block 531 to engage with the ratchet groove 611 of the pin body 61 by the first spring 54 to achieve one-way locking.

[0045] After the pin body 61 passes through the channel steel, the limiting steel ring 4 and the sheet pile body 1, the hammer shock absorber 63 pushes the force plate 612, compresses the second spring 62 to complete the final locking, and the ratchet block 531 is inserted into the ratchet groove 611 to prevent loosening. When the pin body 61 is disassembled, only the pull ring 533 needs to be pulled to release the ratchet block 531 from the ratchet groove 611, and the second spring 62 rebounds to push out the pin body 61.

[0046] The steel ring gasket 52 buffers the installation stress, the limiting steel ring 4 supports the first channel steel 2 and the second channel steel 3 to keep them horizontal, and the protrusion and groove cooperate to prevent the pin from rotating, ensuring the overall stability of the structure; at this point, the work of this device is completed.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A prefabricated steel sheet pile cap beam, comprising a plurality of steel sheet pile bodies (1), characterized in that: Several sheet pile bodies (1) are arranged at equal intervals and staggered. A first channel steel (2) and a second channel steel (3) are installed on the front and rear ends of several sheet pile bodies (1). A pre-set hole (13) that runs through the front and rear is opened on the front end face of several sheet pile bodies (1) near the top. Several limiting steel rings (4) are installed at equal intervals between the first channel steel (2) and the second channel steel (3). The positions of the several limiting steel rings (4) correspond to the positions of the several pre-set holes (13). Several sets of fixing components (5) are installed at equal intervals on the end faces of the first channel steel (2) and the second channel steel (3) away from the sheet pile body (1). The positions of the several fixing components (5) correspond to the positions of the several pre-set holes (13). The several fixing components (5) installed on the outer wall of the first channel steel (2) are fixedly connected to the several fixing components (5) installed on the outer wall of the second channel steel (3) through several pin components (6).

2. The prefabricated steel sheet pile cap beam according to claim 1, characterized in that: Several of the steel sheet pile bodies (1) are provided with V-shaped ports (11) at their bottom ends, and the bottom ends of the V-shaped ports (11) are ground into rounded corners with an arc.

3. The prefabricated steel sheet pile cap beam according to claim 2, characterized in that: The fixing component (5) includes a mounting cylinder (51), and the outer wall of the mounting cylinder (51) is provided with a plurality of connecting ears (511) at equal intervals around the rear end.

4. The prefabricated steel sheet pile cap beam according to claim 3, characterized in that: The fixing component (5) also includes a steel ring washer (52), which is coaxially fixedly installed on the rear end face of the mounting cylinder (51).

5. A prefabricated steel sheet pile cap beam according to claim 4, characterized in that: The outer wall of the mounting cylinder (51) is provided with a storage chamber (512), and a sliding column (53) is slidably connected inside the storage chamber (512).

6. A prefabricated steel sheet pile cap beam according to claim 5, characterized in that: The sliding column (53) is provided with a ratchet block (531) at one end near the mounting cylinder (51), and a blocking plate (532) is provided at the other end of the sliding column (53) away from the mounting cylinder (51) after passing through the side wall of the storage compartment (512).

7. A prefabricated steel sheet pile cap beam according to claim 6, characterized in that: A pull ring (533) is installed on the end face of the blocking disc (532) away from the storage compartment (512). A first spring (54) is sleeved on the outer wall of the sliding column (53). The left end of the first spring (54) abuts against the right end face of the ratchet block (531), and the right end of the first spring (54) abuts against the inner wall of the right end of the storage compartment (512).

8. A prefabricated steel sheet pile cap beam according to claim 1, characterized in that: The pin assembly (6) includes a pin body (61), and the outer wall of the pin body (61) is provided with a plurality of ratchet grooves (611) at equal intervals.

9. A prefabricated steel sheet pile cap beam according to claim 8, characterized in that: One of the pin bodies (61) is inserted and fixed between two sets of fixing components (5), and the ratchet block (531) of one set of fixing components (5) engages with the ratchet groove (611).

10. A prefabricated steel sheet pile cap beam according to claim 9, characterized in that: A force-bearing plate (612) is fixedly installed at the front end of the pin body (61). A second spring (62) is sandwiched between the rear end face of the force-bearing plate (612) and the front end face of the mounting cylinder (51). A shock-absorbing plate (63) is fixedly installed on the front end face of the force-bearing plate (612).

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