Steel sheet pile support corner connecting device

Abstract

The utility model discloses a steel sheet pile support corner connecting device which comprises corner stand columns, the corner stand columns are symmetrically arranged, four annular grooves are formed in the outer walls of the corner stand columns, transfer structures are arranged at the positions of the annular grooves of the corner stand columns, and steel sheet piles are combined on the outer sides of the corner structures. Materials in the device are made of high-strength steel, meanwhile, the corner structures are arranged to be connected with the steel sheet piles, the connecting angle can be flexibly adjusted within a certain range, meanwhile, the corner stand columns are symmetrically arranged to be accurately matched with different foundation pit corners, and the two wings of each corner structure are connected with the adjacent steel sheet piles in an inserted mode. Meanwhile, the supporting structures are arranged between the corner stand columns for reinforcement, the supporting strength and stability of the corners are enhanced, the hidden danger of soil collapse caused by improper connection of the corners is avoided, and the supporting stability of the corners is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel sheet pile construction technology, specifically to a steel sheet pile support corner connection device. Background Technology

[0002] Sheet piles are continuous retaining structures made of hot-rolled or cold-formed steel. They are interconnected via interlocking joints to form a continuous wall. The edges of the sheet piles have interlocking concave grooves, allowing them to be joined together to form a continuous and tight steel structure for retaining or water-retaining walls. Sheet piles are a type of steel with interlocking joints. They are mainly used for temporary or permanent retaining and water-retaining projects. They are used for temporary support of deep foundation pits in high-rise buildings, underground garages, and subway stations, or for slope stabilization during the excavation of pipeline trenches and underground utility tunnels. Due to their high construction efficiency and strong adaptability, sheet pile support has become one of the key technologies in geotechnical engineering, especially indispensable in foundation pit, water conservancy, and emergency projects. At the corners of foundation pits, traditional sheet pile support connection methods often struggle to adapt to complex angle requirements and lack stability. Therefore, we propose a sheet pile support corner connection device. Utility Model Content

[0003] The purpose of this utility model is to provide a steel sheet pile support corner connection device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a steel sheet pile support corner connection device, including corner columns, the corner columns being symmetrically arranged, the outer wall of the corner columns being provided with annular grooves, and the number of annular grooves being four, the annular grooves of the corner columns being provided with corner structures, and steel sheet piles being assembled on the outer side of the corner structures.

[0005] Preferably, the corner structure includes a steel plate sleeve, the center of which is fitted into the annular groove of the corner column with clearance. A T-shaped block is fixedly connected to the outer wall of the steel plate sleeve, and a T-shaped groove is provided in the inner cavity of the T-shaped block. A connecting steel plate is inserted into the T-shaped groove of the T-shaped block. A bolt is inserted into the front side wall of the T-shaped block, and the T-shaped block is fixedly connected to the connecting steel plate by the bolt. A concave groove is provided on the outer side of the connecting steel plate, and a steel sheet pile is inserted into the concave groove of the connecting steel plate.

[0006] Preferably, it also includes a support structure, which is disposed between the inner sidewalls of the two corner columns.

[0007] Preferably, the support structure includes a central column, which is disposed between the inner sidewalls of the two corner columns. A support is fixedly connected to the bottom of the central column, and support blocks are symmetrically fixedly connected to the sidewalls of the central column. An arc-shaped groove is provided at the outer end of the support block, and the arc-shaped groove of the support block fits against the sidewall of the corner column. The inner cavity of the central column is hollow, and a through groove is provided at the bottom of the sidewall of the central column.

[0008] Preferably, the corner column has a groove at its top, and a lifting ring is fixedly connected to the groove of the corner column, with the top of the lifting ring flush with the end of the groove of the corner column.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: the materials in this device are all made of high-strength steel, and a corner structure is set to connect the sheet piles. The connection angle can be flexibly adjusted within a certain range. At the same time, corner columns are symmetrically set to accurately match different foundation pit corners. The two wings of the corner structure are respectively inserted into the adjacent sheet piles. Meanwhile, a support structure is set between the corner columns to strengthen the support strength and stability at the corner, avoid the risk of soil collapse caused by improper corner connection, and improve the support stability at the corner. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 for Figure 1 Detailed view of the central corner structure;

[0012] Figure 3 for Figure 2 Detailed structural diagram of the connecting steel plate;

[0013] Figure 4 for Figure 1 Structural detail of the corner column;

[0014] Figure 5 for Figure 1 Detailed structural diagram of the intermediate support structure;

[0015] In the diagram: 1. Corner column; 2. Corner structure; 21. Steel sleeve; 22. T-block; 23. Continuing steel plate; 24. Bolt; 3. Steel sheet pile; 4. Support structure; 41. Central column; 42. Support block; 43. Through groove; 44. Support; 5. Lifting ring. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-5 This utility model provides a steel sheet pile support corner connection device, including a corner column 1, which is symmetrically arranged. The outer wall of the corner column 1 is provided with an annular groove, and the number of annular grooves is four. A corner structure 2 is provided at the annular groove of the corner column 1, and a steel sheet pile 3 is combined on the outside of the corner structure 2.

[0018] The corner structure 2 includes a steel plate sleeve 21, which is fitted at the center of the corner column 1 with a clearance fit. A T-shaped block 22 is fixedly connected to the outer wall of the steel plate sleeve 21, and a T-shaped slot is provided in the inner cavity of the T-shaped block 22. A connecting steel plate 23 is inserted into the T-shaped slot of the T-shaped block 22. A bolt 24 is inserted into the front side wall of the T-shaped block 22, and the T-shaped block 22 is fixedly connected to the connecting steel plate 23 by the bolt 24. A concave slot is provided on the outer side of the connecting steel plate 23, and a steel sheet pile 3 is inserted into the concave slot of the connecting steel plate 23.

[0019] It also includes a support structure 4, which is located between the inner walls of the two corner columns 1.

[0020] The support structure 4 includes a central column 41, which is located between the inner side walls of the two corner columns 1. A support 44 is fixedly connected to the bottom of the central column 41. Support blocks 42 are symmetrically fixedly connected to the side walls of the central column 41. An arc-shaped groove is provided at the outer end of the support block 42. The arc-shaped groove of the support block 42 fits against the side wall of the corner column 1. The inner cavity of the central column 41 is hollow. A through groove 43 is provided at the bottom of the side wall of the central column 41.

[0021] The corner column 1 has a groove at its top, and a lifting ring 5 is fixedly connected to the groove of the corner column 1. The top of the lifting ring 5 is flush with the end of the groove of the corner column 1.

[0022] Working principle: When connecting the sheet piles 3, corner columns 1 are pre-installed at the corners of the foundation pit. The corner columns 1 are symmetrically arranged. They are moved by the top lifting ring 5 of the lifting mechanism and placed into the foundation pit. A pile driver then drives the corner columns 1 into the soil of the foundation pit, ensuring their stability. The outer wall of the corner columns 1 is evenly provided with annular grooves, and a corner structure 2 is fitted into these grooves. The corner structure 2 is connected via a steel sleeve 21. The steel sleeve 21 is fitted into the annular groove of the corner column 1, and can rotate within the annular groove. There are four steel sleeves 21 in total, arranged in groups of two. A T-shaped block 22 is fixed to the outer wall of each steel sleeve 21, with the T-shaped blocks 22 in the same group facing one side. A connecting steel plate 23 is inserted into the inner cavity of the T-shaped block 22. The angle of the steel sleeve 21 is determined according to the angle of the corner of the foundation pit. Then, the connecting steel plate 23 is fixed by driving piles using a pile driver. After the pile driving is completed, bolts 24 are used to penetrate the T-shaped block 22. Block 22 is used to fix the connecting steel plate 23. A concave groove is provided on the outer side of the connecting steel plate 23. The connecting steel plate 23 can be combined with the sheet pile 3. At the same time, the sheet pile 3 is fixed by piling. After the sheet pile 3 is connected, the support structure 4 is set. The support structure 4 is set between the two corner columns 1. The support structure 4 is mainly composed of the central column 41. It is also fixed in the foundation pit by piling by a piling machine. A support 44 is set at the bottom of the central column 1 to increase the bottom contact area and make the bottom... The structure is more stable, and the central support column 41 is symmetrically equipped with support blocks 42 on both sides. The ends of the support blocks 42 are curved, which can support the side wall of the corner column 1. At the same time, a through hole is opened in the center of the support block 42, which also facilitates the addition of steel bars for reinforcement. Moreover, the central column 41 is hollow and has a through groove at the bottom, which makes it easy to insert the vibrator into the bottom during grouting. This avoids the inconvenience of inserting the vibrator into the bottom due to too much support steel bars, improves grouting efficiency, and seals the corners of the sheet pile 3.

[0023] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel sheet pile support corner connection device, characterized in that: It includes a corner column (1), the corner column (1) is symmetrically arranged, the outer wall of the corner column (1) is provided with an annular groove, and the number of annular grooves is four. A corner structure (2) is provided at the annular groove of the corner column (1), and steel sheet piles (3) are combined on the outside of the corner structure (2).

2. The steel sheet pile support corner connection device according to claim 1, characterized in that: The corner structure (2) includes a steel plate sleeve (21). The center of the steel plate sleeve (21) is fitted into the annular groove of the corner column (1) with clearance. A T-shaped block (22) is fixedly connected to the outer wall of the steel plate sleeve (21). A T-shaped slot is provided in the inner cavity of the T-shaped block (22). A connecting steel plate (23) is inserted into the T-shaped slot of the T-shaped block (22). A bolt (24) is inserted into the front side wall of the T-shaped block (22). The T-shaped block (22) is fixedly connected to the connecting steel plate (23) by the bolt (24). A concave slot is provided on the outer side of the connecting steel plate (23). A steel sheet pile (3) is inserted into the concave slot of the connecting steel plate (23).

3. The steel sheet pile support corner connection device according to claim 1, characterized in that: It also includes a support structure (4), which is disposed between the inner sidewalls of the two corner columns (1).

4. The steel sheet pile support corner connection device according to claim 3, characterized in that: The support structure (4) includes a central column (41), which is located between the inner sidewalls of the two corner columns (1). A support (44) is fixedly connected to the bottom of the central column (41). Support blocks (42) are symmetrically fixedly connected to the sidewalls of the central column (41), and an arc-shaped groove is provided at the outer end of the support block (42). The arc-shaped groove of the support block (42) fits against the sidewall of the corner column (1). The inner cavity of the central column (41) is hollow, and a through groove (43) is provided at the bottom of the sidewall of the central column (41).

5. A steel sheet pile support corner connection device according to claim 1, characterized in that: The corner column (1) has a groove at its top, and a lifting ring (5) is fixedly connected to the groove of the corner column (1). The top of the lifting ring (5) is flush with the end of the groove of the corner column (1).

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