A semi-circular water stop steel sheet pile

Abstract

This application discloses a semi-circular water-stop sheet pile, comprising a long arc plate and a straight mating plate. The long arc plate encloses a cavity, a side elongated opening, and end openings located at both ends of the side elongated opening, both of which communicate with the cavity. The straight mating plate is connected to the long arc plate and covers one side of the side elongated opening. A first water-stop connecting part and a second water-stop connecting part are respectively provided on both sides of the straight mating plate along its width. The first water-stop connecting part of one adjacent semi-circular water-stop sheet pile is connected to the second water-stop connecting part of the other. The semi-circular water-stop sheet pile provided in this application has a semi-circular outer wall structure of the long arc plate, which is more suitable for installation after drilling. After being driven into the soil, the soil closely adhering to the borehole wall becomes the main load-bearing structure, ensuring the stability of the soil behind the sheet pile.

Description

Technical Field

[0001] This utility model relates to the field of water-stop pile technology, specifically to a semi-circular water-stop steel sheet pile. Background Technology

[0002] In underwater construction, sheet piles can quickly form a closed cofferdam, blocking water flow and creating a dry working environment, thus ensuring construction safety. In deep foundation pit support, interlocking structures support the soil, preventing pit collapse and protecting construction personnel and surrounding buildings.

[0003] Sheet piles are typically driven into and extracted from the soil using specialized driving and extraction machines. However, in special geological conditions, driving can be difficult. In such cases, rotary drilling rigs or long spiral drilling rigs are used to create pilot holes before the sheet piles can be driven into them. However, existing sheet piles are typically rectangular with flat surfaces on all four sides. The pilot holes drilled by the drilling rigs are circular. After the sheet piles are driven into the pilot holes, soil is backfilled in front of them. However, a gap remains between the back of the sheet pile and the hole wall. This gap, coupled with the unstable soil, significantly impacts the construction quality of the sheet piles and causes considerable disturbance to the surrounding strata, potentially affecting the safety of nearby buildings and structures.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] To solve one of the above-mentioned technical problems, this utility model provides a semi-circular water-stop steel sheet pile.

[0006] This application provides the following technical solution: A semi-circular water-stop steel sheet pile, comprising: A long, curved plate, which encloses a cavity, a side elongated opening, and end openings located at both ends of the side elongated opening, both of which communicate with the cavity; A straight mating plate is connected to the long arc plate and covers one side of the long opening on the side. The straight mating plate is provided with a first water-stop connection part and a second water-stop connection part on both sides along the width direction. The first water-stop connection part of one of the adjacent semi-circular water-stop steel sheet piles is connected to the second water-stop connection part of the other.

[0007] Optionally, the flat mating plate comprises two plate bodies; The two plates are respectively disposed on both sides of the long arc plate along the bending direction, and are respectively connected to the long arc plate; The two plates are located in the same plane, and there is a gap between the two plates; One of the two plates is provided with the first water-stop connection part, and the other is provided with the second water-stop connection part.

[0008] Optionally, the plate has an inner plate segment located inside the elongated arc plate and an outer plate segment located outside the arc plate; The first or second water-stop connection is respectively connected to the outer side plate segment of the corresponding plate body.

[0009] Optionally, the ratio of the width of the inner plate segment to the width of the outer plate segment is (15-7):1.

[0010] Optionally, in the first water-stop connection part and the second water-stop connection part, one is a plug shaft and the other is a tube body, the tube body having a slot and an elongated deformable opening communicating with the slot; In two adjacent semi-circular water-stop sheet piles, the insert shaft of one is inserted into the pipe body of the other.

[0011] Optionally, the plane containing the plate penetrates the elongated deformation opening on the tube.

[0012] Optionally, the width of the elongated deformation opening is greater than the thickness of the plate.

[0013] Optionally, the semi-circular waterstop sheet pile includes internal reinforcing supports; The internal reinforcing support is located inside the cavity, and its two ends are respectively connected to the elongated arc plate and the straight mating plate.

[0014] Optionally, each of the plates is vertically connected to a plurality of the internal reinforcing support members, and each of the internal reinforcing support members is arranged sequentially along the length direction of the plate. The end of the internal reinforcing support member facing away from the plate is welded to the long arc plate.

[0015] Optionally, the internal reinforcing support is located on the side of the plate opposite to the first or second water-stop connection.

[0016] By adopting the above technical solution, this application has the following beneficial effects: The semi-circular sheet piles provided in this application feature a long, curved outer wall on one side, making them more suitable for installation after drilling. Once driven into the soil, the soil adjacent to the borehole wall becomes the primary load-bearing structure, ensuring soil stability behind the sheet piles. The matching borehole diameter further stabilizes the verticality of the sheet piles. The connecting structure between the sheet piles provides a water-stopping effect, ensuring effective water isolation from both sides. Furthermore, the sheet pile diameter is matched to the appropriate drilling borehole diameter, improving construction quality and efficiency. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] Figure 1 This diagram shows a schematic representation of the semi-circular water-stop steel sheet pile provided in an embodiment of the present invention. Figure 2 This diagram shows a top view of the semi-circular water-stop steel sheet pile provided in an embodiment of the present invention.

[0019] In the figure: 1. Long arc plate, 2. Flat mating plate, 21. Plate body, 211. Inner plate segment, 212. Outer plate segment, 213. First water-stop connection, 3. Second water-stop connection, 4. Inner reinforcing support, 5. Side long strip opening, 6. Long strip deformation opening, 7. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1 to 2As shown in the figure, this application provides a semi-circular water-stop sheet pile, including a long arc plate 1 and a straight mating plate 2. The long arc plate 1 encloses a cavity, a side long opening 6, and end openings located at both ends of the side long opening 6. The side long opening 6 and the end openings are both connected to the cavity. The straight mating plate 2 is connected to the long arc plate 1 and covers one side of the side long opening 6. The straight mating plate 2 has a first water-stop connecting part 3 and a second water-stop connecting part 4 respectively on both sides along the width direction. The first water-stop connecting part 3 of one semi-circular water-stop sheet pile and the second water-stop connecting part 4 of the other semi-circular water-stop sheet pile are connected.

[0024] The semi-circular sheet piles provided in this application feature a long, curved plate on one side and a semi-circular outer wall structure, making them more suitable for installation after drilling. Once driven into the soil, the soil closely adhering to the borehole wall serves as the primary load-bearing structure, ensuring soil stability behind the sheet piles. Selecting sheet piles with matching borehole diameters further stabilizes the verticality of the sheet pile installation. The connecting structure between the sheet piles provides a water-stopping effect, ensuring effective water isolation before and after the sheet piles. Furthermore, the sheet pile diameter is matched to a suitable drilling borehole diameter, improving construction quality and efficiency.

[0025] Furthermore, the curvature of the elongated arc plate 1 matches the length of the straight mating plate 2, enabling multiple semi-circular water-stop sheet piles to be spliced ​​together to form a complete circular cofferdam structure. This design not only enhances the overall stability and sealing of the water-stop sheet piles but also effectively solves the problem of gaps behind existing rectangular sheet piles after they are driven into circular pilot holes, thus improving construction quality.

[0026] In practice, the size and specifications of the semi-circular waterstop sheet piles can be adjusted according to actual needs. For example, in deep foundation pit support projects, longer and thicker semi-circular waterstop sheet piles can be selected to increase the support strength; while in underwater construction, materials with better corrosion resistance should be selected to ensure the service life of the waterstop sheet piles.

[0027] In summary, the semi-circular water-stop steel sheet pile provided in this application has the advantages of simple structure, good water-stopping effect, and convenient construction, and is suitable for various underwater construction and deep foundation pit support projects.

[0028] In some possible implementations, the flat mating plate 2 comprises two plate bodies 21. The two plate bodies 21 are respectively disposed on both sides of the elongated arc plate 1 along the bending direction and are respectively connected to the elongated arc plate 1. The two plate bodies 21 are located in the same plane, and there is a gap between them. This space between the two plate bodies 21 ensures that the soil between the semi-circular outer wall of the sheet pile and the inner wall of the flat steel plate is not isolated. Simultaneously, the gap between the two plate bodies 21 also allows for a certain amount of soil displacement, increasing the overall flexibility and adaptability of the structure and helping to resist the pressure caused by soil deformation. Furthermore, the gap effectively reduces stress concentration within the structure caused by factors such as temperature changes and soil settlement, improving the durability of the semi-circular water-stop sheet pile.

[0029] One of the two sheet piles 21 is provided with the first water-stop connection part 3, and the other is provided with the second water-stop connection part 4. This design allows adjacent semi-circular water-stop sheet piles to be easily connected together to form a continuous water-stop barrier. The cooperation between the first water-stop connection part 3 and the second water-stop connection part 4 ensures a tight and stable connection between the sheet piles, effectively preventing water leakage. At the same time, this connection method also facilitates rapid installation by construction personnel on site, improving construction efficiency.

[0030] In some possible implementations, the plate 21 has an inner plate segment 211 located inside the elongated arc plate 1 and an outer plate segment 212 located outside the arc plate. A first water-stop connection 3 or a second water-stop connection 4 is respectively connected to the outer plate segment 212 of the corresponding plate 21. This design of the inner plate segment 211 and the outer plate segment 212 enhances the structural strength of the plate 21. The inner plate segment 211 is close to the inner wall of the elongated arc plate 1, providing stable support, while the outer plate segment 212 extends outward, providing sufficient connection area for the first water-stop connection 3 or the second water-stop connection 4, preventing interference between the first water-stop connection 3 or the second water-stop connection 4 and the elongated arc plate 1. This structural design not only ensures the stability of the sheet pile under stress but also allows the water-stop connection to be more firmly connected to the plate 21, further improving the water-stopping effect. Meanwhile, the extended design of the outer side panel segment 212 also facilitates on-site connection operations for construction personnel, reduces installation difficulty, and improves work efficiency.

[0031] In some possible implementations, the width ratio of the inner plate segment 211 to the outer plate segment 212 is (15-7):1. This width ratio design is the optimal solution obtained through precise calculations and multiple tests. The relatively wider width of the inner plate segment 211 allows it to more effectively fit against the inner wall of the elongated arc plate 1, providing stronger support and ensuring that the sheet pile is not easily deformed under stress. While the outer plate segment 212 is narrower, it is sufficient to meet the connection requirements of the first water-stop connection 3 or the second water-stop connection 4, while avoiding unnecessary material waste, making the entire sheet pile structure more compact and efficient. In addition, this width ratio design also helps to improve the corrosion resistance of the sheet pile and extend its service life.

[0032] In some possible implementations, in the first water-stop connection 3 and the second water-stop connection 4, one is an insert shaft and the other is a pipe body. The pipe body has a slot and an elongated deformable opening 7 connecting the slot. In two adjacent semi-circular water-stop sheet piles, the insert shaft of one is inserted into the pipe body of the other. The matching design of the insert shaft and the pipe body ensures the tightness and stability of the water-stop connection during connection. The shape and size of the insert shaft are carefully designed to perfectly fit the slot of the pipe body, so that the two can form a seamless connection during connection, effectively preventing water penetration. The setting of the elongated deformable opening 7 gives the pipe body a certain elastic deformation capacity. When the insert shaft is inserted, the pipe body can slightly expand to adapt to the size of the insert shaft, further enhancing the tightness of the connection. This design not only improves the water-stopping effect, but also makes the connection operation simpler and faster, reducing the construction difficulty. At the same time, both the insert shaft and the pipe body are made of corrosion-resistant materials, which can effectively resist the erosion of the external environment and extend the service life of the sheet piles.

[0033] Furthermore, to further enhance the water-stopping effect, a sealing material, such as a rubber gasket or sealant, can be provided between the first water-stopping connection 3 and the second water-stopping connection 4. When adjacent semi-circular water-stopping sheet piles are connected to each other, the sealing material can fill the connection gaps and effectively prevent water seepage.

[0034] In some possible implementations, the plane containing the plate 21 extends through the elongated deformation opening 7 on the pipe body. This ensures that the width of the plates on both sides of the elongated deformation opening 7 is the same, and that the outward expansion of the force on both sides is approximately the same when the first water-stop connection 3 and the second water-stop connection 4 are engaged, preventing a situation where one side experiences greater force and deformation, resulting in a shorter lifespan.

[0035] In some possible implementations, the width of the elongated deformation opening 7 is greater than the thickness of the plate 21. This allows for a certain relative swing space between adjacent semi-circular sheet piles after the first and second water-stop connection parts 3 and 4 are inserted, accommodating complex geological conditions such as foundation settlement or ground deformation, and ensuring the stability and sealing of the sheet pile connection. Furthermore, this design effectively mitigates the impact of natural disasters such as earthquakes on the sheet pile connection, improving the overall seismic performance of the structure. Simultaneously, the existence of this relative swing space facilitates fine-tuning during construction, further enhancing construction efficiency and flexibility.

[0036] In some possible implementations, the semi-circular water-stop sheet pile includes an internal reinforcing support 5 located within the cavity, with both ends connected to the elongated arc plate 1 and the straight mating plate 2, respectively. The internal reinforcing support 5 significantly enhances the structural strength of the semi-circular water-stop sheet pile, enabling it to better resist pressure from soil or water. Furthermore, the internal reinforcing support 5 also disperses stress; when subjected to external impact, it effectively distributes stress throughout the entire sheet pile structure, preventing structural damage caused by excessive local stress. This design not only improves the durability of the water-stop sheet pile but also extends its service life, providing more reliable safety guarantees for various water conservancy and construction projects. Simultaneously, the installation of the internal reinforcing support 5 facilitates operation and maintenance by construction personnel, further improving construction efficiency and quality.

[0037] In some possible implementations, a plurality of internal reinforcing supports 5 are vertically connected to each of the plates 21, and each of the internal reinforcing supports 5 is arranged sequentially along the length of the plate 21. The end of each internal reinforcing support 5 facing away from the plate 21 is welded to the elongated arc plate 1. This arrangement ensures the integrity of the internal reinforcing supports 5 and the semi-circular water-stop sheet pile, enhancing the overall stability and load-bearing capacity. Furthermore, the uniform distribution of the multiple internal reinforcing supports 5 allows the sheet pile to distribute stress more evenly when under load, avoiding structural damage caused by stress concentration.

[0038] In some possible implementations, the internal reinforcing support 5 is located on the side of the plate 21 opposite to the first water-stop connection 3 or the second water-stop connection 4 thereon. The connection position of the internal reinforcing support 5 to the plate 21 is at the point farthest from the connection point between the plate 21 and the elongated arc plate 1. Placing the internal reinforcing support 5 at this location ensures that both sides of the plate 21 are supported, thereby maximizing the stability of the plate 21.

[0039] The preferred embodiments disclosed above are merely illustrative of this application. The preferred embodiments do not exhaustively describe modifications and variations. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to better understand and utilize this application. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A semi-circular water-stopping steel sheet pile, characterized by, include: A long, curved plate, which encloses a cavity, a side elongated opening, and end openings located at both ends of the side elongated opening, both of which communicate with the cavity; A straight mating plate is connected to the long arc plate and covers one side of the long opening on the side. The straight mating plate is provided with a first water-stop connection part and a second water-stop connection part on both sides along the width direction. The first water-stop connection part of one of the adjacent semi-circular water-stop steel sheet piles is connected to the second water-stop connection part of the other.

2. The semi-circular water-stopping steel sheet pile according to claim 1, characterized by The flat mating plate comprises two plate bodies; The two plates are respectively disposed on both sides of the long arc plate along the bending direction, and are respectively connected to the long arc plate; The two plates are located in the same plane, and there is a gap between the two plates; One of the two plates is provided with the first water-stop connection part, and the other is provided with the second water-stop connection part.

3. The semi-circular water-stopping steel sheet pile according to claim 2, characterized in that, The plate has an inner plate segment located inside the long arc plate and an outer plate segment located outside the arc plate. The first or second water-stop connection is respectively connected to the outer side plate segment of the corresponding plate body.

4. The semi-circular sheet pile according to claim 3, wherein The ratio of the width of the inner plate segment to the width of the outer plate segment is (15-7):

1.

5. The semi-circular water-stopping steel sheet pile according to claim 4, characterized by In the first water-stop connection part and the second water-stop connection part, one is a plug shaft and the other is a tube body. The tube body has a slot and an elongated deformable opening that communicates with the slot. In two adjacent semi-circular water-stop sheet piles, the insert shaft of one is inserted into the pipe body of the other.

6. The semi-circular sheet pile dam according to claim 5, wherein The plane containing the plate penetrates the long, deformable opening on the tube.

7. The semi-circular sheet pile according to claim 6, wherein The width of the elongated deformation opening is greater than the thickness of the plate.

8. The semi-circular sheet pile according to claim 7, characterized in that Including internal reinforcement support components; The internal reinforcing support is located inside the cavity, and its two ends are respectively connected to the elongated arc plate and the straight mating plate.

9. The semi-circular water-stopping steel sheet pile according to claim 8, characterized in that, Each of the plates is vertically connected to a plurality of internal reinforcing support members, and each of the internal reinforcing support members is arranged sequentially along the length direction of the plate. The end of the internal reinforcing support member facing away from the plate is welded to the long arc plate.

10. The semi-circular water-stopping steel sheet pile according to claim 9, characterized by The internal reinforcing support is located on the side of the plate opposite to the first or second water-stop connection.

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