Steel structure u-shaped steel sheet pile locking and limiting device based on pile foundation engineering

Abstract

This utility model discloses a locking and limiting device for U-shaped steel sheet piles in pile foundation engineering. It includes a base plate, of which two base plates are provided. Each base plate has a limiting groove on its outer wall, and slide rails are fixedly connected to both sides of the outer walls of each base plate. Reinforcing seats are slidably connected to the outer walls of all four slide rails. This utility model relates to the field of pile foundation engineering technology. This locking and limiting device for U-shaped steel sheet piles in pile foundation engineering, through the cooperation of the limiting grooves, slide rails, reinforcing seats, and a first bolt, achieves the limiting of the locking opening of the U-shaped steel sheet pile. It not only effectively restricts the lateral displacement and vertical loosening of the locking opening during pile driving, but also prevents excessive gaps in the steel sheet pile splicing and reduced seepage prevention performance due to locking opening misalignment. Simultaneously, it ensures that the axis of the steel sheet pile always conforms to construction specifications, thereby improving the overall stability and service life of the pile foundation engineering support structure.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation engineering technology, specifically to a locking and limiting device for steel U-shaped steel sheet piles based on pile foundation engineering. Background Technology

[0002] U-shaped sheet piles are a type of hot-rolled or cold-formed steel with a U-shaped cross-section and interlocking edges.

[0003] In the traditional use of steel structure U-shaped steel sheet piles, construction workers splice multiple steel structure U-shaped steel sheet piles together to achieve the effects of foundation pit support, hydraulic cofferdam, slope protection, etc. However, during actual construction, U-shaped sheet piles are easily affected by factors such as mechanical vibration and soil pressure impact, which can cause them to shift left and right or loosen up and down at the interlocking points. This can lead to misalignment of adjacent U-shaped sheet piles, resulting in large gaps. These gaps can directly damage the waterproofing performance of the wall, requiring the construction party to invest additional costs in repair. Furthermore, in traditional splicing methods, the connection between adjacent sheet piles relies solely on the interlocking points themselves. When facing complex conditions such as soft soil or sand layers, the axis of the U-shaped sheet piles may shift, reducing the overall stability of the support structure. It may also cause deformation at the interlocking point, thereby significantly reducing the service life. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a locking and limiting device for U-shaped steel sheet piles in pile foundation engineering. This device solves the problem that during actual construction, U-shaped steel sheet piles are easily affected by mechanical vibration, soil pressure impact, and other factors, leading to lateral or vertical loosening at the locking points. This can cause misalignment between adjacent U-shaped steel sheet piles, resulting in large gaps. These gaps directly compromise the waterproofing performance of the wall, requiring additional costs for repair. Furthermore, in traditional splicing methods, the connection between adjacent steel sheet piles relies solely on the interlocking of the locking points. In complex conditions such as soft soil and sand layers, this can lead to axial displacement of the U-shaped steel sheet piles, reducing the overall stability of the support structure and potentially causing deformation of the locking points, thus significantly reducing their service life.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a steel structure U-shaped sheet pile locking and limiting device based on pile foundation engineering, comprising a base plate, wherein two base plates are provided, and limiting grooves are formed on the outer walls of both base plates. Slide rails are fixedly connected to both sides of the outer walls of the two base plates. Reinforcing seats are slidably connected to the outer walls of the four slide rails. First bolts are inserted into the inner walls of the four reinforcing seats. The outer walls of the four first bolts penetrate the outer walls of the four base plates. The ends of the four first bolts are respectively threaded to the inner walls of the four limiting grooves.

[0006] Preferably, a positioning plate is fixedly connected to the side of the outer wall of the reinforcing base near the limiting groove. The inner wall of the positioning plate is sleeved on the outer wall of the first bolt. The side of the outer wall of the positioning plate away from the reinforcing base is engaged with the outer wall groove of another substrate. A positioning groove is formed on the side of the outer wall of the substrate away from the limiting groove. A positioning strip is attached to the inner wall of the positioning groove. The side of the outer wall of the positioning strip away from the positioning groove is fixedly connected to the outer wall of another substrate.

[0007] Preferably, the inner wall of the substrate is fixedly connected with reinforcing ribs.

[0008] Preferably, a second bolt is threaded onto the inner wall of the substrate away from the reinforcing rib, and the end of the second bolt abuts against the outer wall of the positioning plate.

[0009] Preferably, the outer wall of the substrate has a connection hole. Beneficial effects

[0010] This utility model provides a locking and limiting device for U-shaped steel sheet piles in pile foundation engineering. It offers the following advantages: This locking and limiting device for U-shaped steel sheet piles in pile foundation engineering, through the cooperation of a limiting groove, a sliding rail, a reinforcing seat, and a first bolt, effectively limits the locking of the U-shaped steel sheet piles. This not only effectively restricts the lateral displacement and vertical loosening of the locking during pile driving, but also prevents excessive gaps in the steel sheet pile splicing and reduced seepage prevention performance due to locking misalignment. Simultaneously, it ensures that the axis of the steel sheet pile always conforms to construction specifications, thereby improving the overall stability and service life of the pile foundation engineering support structure.

[0011] By combining positioning plates, positioning grooves, and positioning strips, the connection speed between multiple U-shaped steel sheet piles is increased, allowing construction workers to complete the initial positioning without repeated calibration, which greatly shortens the installation time of steel sheet piles and significantly improves the overall construction efficiency in large-scale construction operations. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1An exterior schematic diagram; Figure 3 for Figure 1 Structural diagram of the middle limiting groove, slide rail and reinforcing base; Figure 4 for Figure 3 A schematic diagram of the structure of the first bolt, the positioning groove, and the positioning strip.

[0013] In the diagram: 1. Base plate; 2. Limiting groove; 3. Slide rail; 4. Reinforcing base; 5. First bolt; 6. Positioning plate; 7. Positioning groove; 8. Positioning strip; 9. Reinforcing rib; 10. Second bolt; 11. Connecting hole. Detailed Implementation

[0014] 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.

[0015] During actual construction, U-shaped sheet piles are susceptible to mechanical vibration, soil pressure impact, and other factors, which can cause them to shift left and right or loosen up and down at the interlocking points. This can lead to misalignment of adjacent U-shaped sheet piles, resulting in large gaps. These gaps can directly damage the waterproofing performance of the wall, requiring the construction party to invest additional costs in repair. Furthermore, in traditional splicing methods, the connection between adjacent sheet piles relies solely on the interlocking points themselves. When facing complex conditions such as soft soil or sand layers, the axis of the U-shaped sheet piles may shift, reducing the overall stability of the support structure. It may also cause deformation at the interlocking point, thereby significantly reducing the service life.

[0016] In view of this, the present invention provides a locking device for U-shaped steel sheet piles in pile foundation engineering. This locking device for U-shaped steel sheet piles in pile foundation engineering, through the cooperation of a limiting groove, a sliding rail, a reinforcing seat, and a first bolt, realizes the limiting of the locking of the U-shaped steel sheet pile. It can not only effectively limit the left and right displacement and up and down loosening of the locking during the pile driving process, but also avoid excessive gaps in the splicing of steel sheet piles and reduced seepage prevention performance due to misalignment of the locking. At the same time, it ensures that the axis of the steel sheet pile always conforms to the construction specifications, thereby improving the overall stability and service life of the pile foundation engineering support structure.

[0017] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0018] Example 1, by Figure 1-4 It is known that a steel structure U-shaped steel sheet pile locking and limiting device based on pile foundation engineering includes a base plate 1. There are two base plates 1. The outer walls of the two base plates 1 are provided with limiting grooves 2. The two outer walls of the two base plates 1 are fixedly connected to slide rails 3. The outer walls of the four slide rails 3 are slidably connected to reinforcing seats 4. The inner walls of the four reinforcing seats 4 are inserted with first bolts 5. The outer walls of the four first bolts 5 penetrate the outer walls of the four base plates 1. The ends of the four first bolts 5 are respectively threaded to the inner walls of the four limiting grooves 2. In the specific implementation process, it is worth noting that the base plate 1 is a U-shaped steel sheet pile, which can be made of Q355B low-alloy high-strength structural steel. Its outer wall has a circular through hole, and the end of the circular through hole is connected to a groove with a trapezoidal cross-section. The groove is also located on the outer wall of the base plate 1, and its surface can be hot-dip galvanized to improve corrosion resistance and extend the service life of the device. Limiting grooves 2 are machined at the locking points on both sides of one base plate 1, and the inner wall of the limiting grooves 2 is machined with internal threads. A section similar to a 'T' is fixedly connected to both sides of the outer wall of one base plate 1. The slide rail 3 is shaped like an 'L', and its length is the same as that of the base plate 1. The material of the slide rail 3 is the same as that of the base plate 1. A reinforcing seat 4 is slidably engaged on the outer wall of the slide rail 3. The material and length of the reinforcing seat 4 are the same as those of the base plate 1. The cross-section of the reinforcing seat 4 is similar to an 'L' shape, with a 'T' shaped groove machined on one side and multiple circular through holes machined on the other side. These circular through holes are identical to the circular through holes on the outer wall of the base plate 1 and are connected. The first bolt 5 can be made of galvanized alloy steel, and its number is the same as the number of circular through holes on the surface of the reinforcing seat 4. The end of 5 can be threaded into the internal thread of the inner wall of the limiting groove 2. In actual construction, firstly, the workers place the two base plates 1 according to the spacing and axis position of the construction design, so that the locking holes of the two base plates 1 are aligned, and the whole is similar to an 'S' shape. Then, the two reinforcing seats 4 are respectively aligned with the two slide rails 3 that are close to each other on the outer wall of the two base plates 1, and the two reinforcing seats 4 are slidably connected to the outer wall of the two slide rails 3 until the circular through hole on the surface of the reinforcing seat 4, the circular hole on the outer wall of the other base plate 1 and the limiting groove 2 are aligned. At this time, the two reinforcing seats 4 are connected to the inner thread of the limiting groove 2. The base 4 precisely covers the critical area where the locking joint of the two base plates 1 is prone to displacement. Finally, take out multiple first bolts 5, align the first bolts 5 with the circular through holes on the outer walls of the two base plates 4, and drive the first bolts 5 to be inserted into the inner wall of the circular through holes until they contact the internal thread of the limiting groove 2. Then, rotate the first bolts 5 counterclockwise to fix the two base plates 1 together, thereby achieving the limiting of the locking joint. When installing other base plates 1, repeat the above operation to improve the overall stability and service life of the pile foundation support structure. Furthermore, a positioning plate 6 is fixedly connected to the side of the outer wall of the reinforcing base 4 near the limiting groove 2. The inner wall of the positioning plate 6 is sleeved on the outer wall of the first bolt 5. The side of the outer wall of the positioning plate 6 away from the reinforcing base 4 is engaged with the groove on the outer wall of another base plate 1. A positioning groove 7 is provided on the side of the outer wall of the base plate 1 away from the limiting groove 2. A positioning strip 8 is attached to the inner wall of the positioning groove 7. The side of the outer wall of the positioning strip 8 away from the positioning groove 7 is fixedly connected to the outer wall of another base plate 1. In the specific implementation process, it is worth noting that the material and length of the positioning plate 6 are the same as those of the reinforcing base 4. Its surface has through holes identical to the circular through holes on the surface of the reinforcing base 4, and the two through holes are connected. Furthermore, the outer wall of the positioning plate 6 can completely fit into the trapezoidal groove on the outer wall of the base plate 1. The cross-section of the positioning groove 7 is similar to a rectangle. Two positioning grooves 7 are machined on the outer wall of one base plate 1. The number and shape of the positioning strips 8 are exactly the same as those of the positioning grooves 7. In actual construction, after the construction personnel have fixed the first base plate 1, when installing the second base plate 1, they must first align the positioning strips 8 on the outer wall of the second base plate 1 with the positioning grooves 7 on the outer wall of the first base plate 1, and then move the second base plate 1. The second base plate 1 causes its positioning strips 8 to slide within the positioning grooves 7 on the outer wall of the first base plate 1 until they are fully inserted. Through the interlocking cooperation of the positioning strips 8 and the positioning grooves 7, the second base plate 1 and the first base plate 1 are quickly aligned. The initial alignment of substrate 1 eliminates the need for repeated measurement and calibration of the axial positions of the two substrates 1, significantly shortening the initial positioning time. At the same time, the tight fit between the positioning strip 8 and the positioning groove 7 can initially limit the horizontal displacement of the second substrate 1, laying the foundation for the subsequent precise docking of the locking joint and the installation of the reinforcing seat 4. Subsequently, the construction personnel need to simultaneously adjust the position of the reinforcing seat 4 on the second substrate 1 so that the positioning plate 6 on the outer wall of the reinforcing seat 4 is aligned with the trapezoidal groove on the outer wall of the first substrate 1. When the reinforcing seat 4 is pushed along the slide rail 3, the positioning plate 6 moves synchronously with the reinforcing seat 4 until the outer wall of the positioning plate 6 is completely fitted into the trapezoidal groove of the first substrate 1. At this time, the positioning plate 6 not only achieves further positioning constraints of the two substrates 1 in the vertical direction, but also enhances the connection stability between the two substrates 1 through the snap-fit ​​with the trapezoidal groove. Therefore, through the cooperation of the above structures, not only is the installation speed improved, but the structural stability is also improved. Furthermore, the inner wall of the substrate 1 is fixedly connected with reinforcing ribs 9; In the specific implementation process, it is worth noting that the reinforcing rib 9 is similar to a triangular tube in shape, and its material is the same as that of the substrate 1. The two bends on the inner wall of the substrate 1 are fixedly connected with the reinforcing rib 9 to enhance the rigidity of the substrate 1. The surface of the reinforcing rib 9 can be hot-dip galvanized to improve corrosion resistance, extend the service life of the device, and improve the support force of the substrate 1, thereby improving the stability of the entire support structure. Example 2, by Figure 1-4It can be seen that a second bolt 10 is threadedly connected to the inner wall of the substrate 1 on the side away from the reinforcing rib 9, and the end of the second bolt 10 abuts against the outer wall of the positioning plate 6. In the specific implementation process, it is worth noting that multiple second bolts 10 are provided, evenly distributed on both sides of the inner wall of the base plate 1. The specific number can be selected according to actual needs, as long as it meets the working requirements. The material is the same as the first bolt 5. It extends to the outer wall of the base plate 1 through the threaded hole on the inner wall of the base plate 1, and is connected by threads so that its end abuts against the outer wall of the reinforcing seat 4, thereby fixing the reinforcing seat 4 and thus improving the structural stability of the steel structure U-shaped steel sheet pile locking and limiting device based on pile foundation engineering. Furthermore, a connection hole 11 is provided on the outer wall of the substrate 1; In the specific implementation process, it is worth noting that the connecting hole 11 is circular in shape and is machined at the first and last ends of the base plate 1. During actual construction, the construction personnel can use the connecting hole 11 to raise the existing base plate 1, thereby meeting the actual construction needs and improving the adaptability of the steel structure U-shaped steel sheet pile. 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 locking and limiting device for U-shaped steel sheet piles in steel structure based on pile foundation engineering, comprising a base plate (1), characterized in that: Two substrates (1) are provided. Each of the two substrates (1) has a limiting groove (2) on its outer wall. Each of the two substrates (1) has a slide rail (3) fixedly connected to both sides of its outer wall. Each of the four slide rails (3) has a reinforcing seat (4) slidably connected to its outer wall. Each of the four reinforcing seats (4) has a first bolt (5) inserted into its inner wall. Each of the four first bolts (5) penetrates the outer wall of each of the four substrates (1). The ends of the four first bolts (5) are threaded to the inner walls of the four limiting grooves (2).

2. The locking and limiting device for U-shaped steel sheet piles in pile foundation engineering according to claim 1, characterized in that: A positioning plate (6) is fixedly connected to the side of the outer wall of the reinforcing base (4) near the limiting groove (2). The inner wall of the positioning plate (6) is sleeved on the outer wall of the first bolt (5). The side of the outer wall of the positioning plate (6) away from the reinforcing base (4) is engaged with the outer wall groove of another substrate (1). A positioning groove (7) is provided on the side of the outer wall of the substrate (1) away from the limiting groove (2). A positioning strip (8) is attached to the inner wall of the positioning groove (7). The side of the outer wall of the positioning strip (8) away from the positioning groove (7) is fixedly connected to the outer wall of another substrate (1).

3. The locking and limiting device for U-shaped steel sheet piles in pile foundation engineering according to claim 1, characterized in that: The inner wall of the substrate (1) is fixedly connected with reinforcing ribs (9).

4. The locking and limiting device for U-shaped steel sheet piles in pile foundation engineering according to claim 3, characterized in that: The inner wall of the substrate (1) away from the reinforcing rib (9) is threaded with a second bolt (10), and the end of the second bolt (10) abuts against the outer wall of the positioning plate (6).

5. The locking and limiting device for U-shaped steel sheet piles in pile foundation engineering according to claim 1, characterized in that: The outer wall of the substrate (1) is provided with a connection hole (11).

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