Partial load type water steel pipe sinking pile

Abstract

The utility model discloses a partial load type water steel pipe sinking pile which comprises a steel pipe, a first partial load beam, a second partial load beam and a positioning mechanism used for connecting and positioning the steel pipe. The first partial load beam and the second partial load beam have the same structure, and the length of the first partial load beam is smaller than that of the second partial load beam; the first load-sharing beam is arranged below the second load-sharing beam and fixedly connected with the second load-sharing beam, and the first load-sharing beam is arranged at the top end of the steel pipe and fixedly connected with the steel pipe; a fixedly connected steel pipe is arranged above the second partial load beam and is concentric with the steel pipe below the first partial load beam; the first partial load beam is formed by splicing a pair of I-shaped steel, and the I-shaped steel is fixedly connected through a fixing plate; load is dispersed and borne through the load-sharing beam, and serious settlement caused by the fact that the load is concentrated on a single steel pipe is avoided. According to the utility model, the first partial load beam and the second partial load beam are matched with the steel pipes to disperse the load, so that the conditions of serious settlement and uneven settlement caused by the fact that the load is concentrated on a single steel pipe are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, and specifically relates to a split-load underwater steel pipe driven pile. Background Technology

[0002] Currently, the construction of cross-river bridges requires the initial construction of underwater pile foundations to support the steel box girders. Steel pipe piles are commonly used and need to be dismantled after completion. However, deviations often occur during the driving of these steel pipe piles. The main reasons are as follows: 1) Steel pipe piles are long and heavy, making construction inconvenient; 2) The slenderness ratio of steel pipe piles above the riverbed is too large, and controlling verticality and pile position deviation is difficult when driving them underwater. Even a small deviation rate can lead to a large deviation in the pile top position when the pile is extremely long; 3) The diverse and complex geological conditions of the aquatic environment easily cause deviations.

[0003] The above problems have occurred repeatedly during the construction of the bridge. Individual steel pipe piles have experienced varying degrees of settlement, and the settlement is uneven, which has caused great trouble to the construction process and the assurance of construction quality. According to the preliminary analysis of the technicians, in addition to the reasons mentioned above, the uneven stress on individual steel pipe piles is a major factor.

[0004] Therefore, in response to the above-mentioned construction problems, the present invention provides a load-sharing beam scheme that can greatly improve the phenomenon of uneven load on a single steel pipe pile. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a distributed-load underwater steel pipe driven pile, which can distribute the load through the first and second load-distribution beams in conjunction with the steel pipe, avoiding the situation where the load is concentrated on a single steel pipe, resulting in severe settlement and uneven settlement.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A type of split-load underwater steel pipe driven pile includes a steel pipe, a first load-sharing beam, a second load-sharing beam, and a positioning mechanism for connecting and positioning the steel pipe. The first and second load-sharing beams have the same structure, but the length of the first load-sharing beam is shorter than that of the second load-sharing beam. The first load-sharing beam is located below the second load-sharing beam and is fixedly connected to it. The first load-sharing beam is located at the top of the steel pipe and is fixedly connected to it. A fixedly connected steel pipe is located above the second load-sharing beam and is concentrically arranged with the steel pipe below the first load-sharing beam. The first load-sharing beam consists of a pair of double-jointed I-beams, which are fixedly connected by a fixing plate. By using the load-sharing beams, the load is distributed and carried out in a distributed manner, avoiding concentration on a single steel pipe and preventing severe settlement.

[0008] The width of the first load-bearing beam is greater than the diameter of the steel pipe, which is beneficial for the installation and welding of the steel pipe.

[0009] The width of the first load-bearing beam is set to 90-100cm.

[0010] The positioning mechanism includes a plug shaft, two sets of engaging components, and a limiting shaft connected to the engaging components. The engaging components are located at both ends of the limiting shaft, and the engaging component at the bottom of the limiting shaft is fixed to a steel pipe. The engaging components include a pair of clamps connected by bolts. The inner wall of the clamps is provided with a slot, and a top block is inserted into the slot. The outer wall of the clamps is provided with limiting arms, and the included angle between adjacent limiting arms is 90°. The limiting shaft is inserted into the limiting arms. The limiting shaft is provided with a first limiting plate and a second limiting plate. The first limiting plate limits the insertion depth of the limiting shaft, and the second limiting plate limits the height of the engaging components above. The clamps are provided with insertion holes for inserting the plug shaft.

[0011] The steel pipes are provided with a first stiffening plate and a second stiffening plate to provide stability and support.

[0012] The first stiffener includes a first inclined plate and a pair of first horizontal plates. The first horizontal plates are fixedly connected to steel pipes. The first inclined plates are provided in pairs and are arranged crosswise. The first inclined plates are connected to the first horizontal plates.

[0013] The second stiffener includes a vertical plate, a second inclined plate, and a pair of second horizontal plates. The second horizontal plates are fixedly connected to steel pipes, and the two ends of the vertical plate are fixedly connected to the second horizontal plates. The second inclined plate is provided with a pair of second horizontal plates connected to it.

[0014] A construction mesh plate is fixedly connected between the steel pipes, and the mesh plate is located above the first stiffening plate and the second stiffening plate.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1) By using the first and second load-bearing beams, the load can be transferred to the steel pipe completely and stably, and the concentrated load can be dispersed to achieve the purpose of overall stress and uniform load distribution. This avoids deviations caused by geological variations when the steel pipe is driven into the riverbed, which could lead to large deviations in the bearing capacity of a single steel pipe and result in excessive pressure on the single steel pipe, causing severe settlement.

[0017] 2) The use of locking components in the positioning mechanism can ensure that the steel pipes below the first load-bearing beam and above the second load-bearing beam can remain concentric during installation, thereby achieving the load distribution effect and avoiding the disadvantage of load concentration on one side of the steel pipe due to deviation. Attached Figure Description

[0018] Appendix Figure 1 This utility model provides a schematic diagram of a split-load underwater steel pipe driven pile structure. Figure 1 ;

[0019] Appendix Figure 2This utility model provides a schematic diagram of a split-load underwater steel pipe driven pile structure. Figure 2 ;

[0020] Appendix Figure 3 This is a structural schematic diagram of the first load-bearing beam;

[0021] Appendix Figure 4 This is a schematic diagram illustrating the application effect of the limit mechanism;

[0022] Appendix Figure 5 This is a schematic diagram of the limiting mechanism;

[0023] Appendix Figure 6 This is an exploded view of the limit mechanism.

[0024] In the diagram: 1. Steel pipe; 2. First stiffening plate; 3. Second stiffening plate; 4. First load-bearing beam; 5. Second load-bearing beam; 6. Positioning mechanism; 7. Mesh plate;

[0025] 21. First inclined plate; 22. First horizontal plate; 31. Second horizontal plate; 32. Vertical plate; 33. Second inclined plate;

[0026] 41. I-beam; 42. Fixing plate;

[0027] 61. Clamp; 611. Slot; 612. Top block; 613. Limiting arm; 62. Limiting shaft; 621. First limiting plate; 622. Second limiting plate; 63. Insert shaft. Detailed Implementation

[0028] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-6 The technical solution of this utility model will be further described in detail below.

[0029] A type of split-load underwater steel pipe driven pile includes a steel pipe 1, a first load-sharing beam 4, a second load-sharing beam 5, and a positioning mechanism 6 for connecting and positioning the steel pipe 1. The first load-sharing beam 4 and the second load-sharing beam 5 have the same structure, but the length of the first load-sharing beam 4 is shorter than that of the second load-sharing beam 5. The first load-sharing beam 4 is located below the second load-sharing beam 5 and is fixedly connected to it. The first load-sharing beam 4 is located at the top of the steel pipe 1 and is fixedly connected to it. A fixedly connected steel pipe 1 is located above the second load-sharing beam 5 and is concentrically arranged with the steel pipe 1 below the first load-sharing beam 4. The first load-sharing beam 4 is composed of a pair of I-beams 41, which are fixedly connected by a fixing plate 42. By using the load-sharing beams, the load is distributed and borne, avoiding concentration on a single steel pipe 1 and causing severe settlement.

[0030] The width of the first load-bearing beam 4 is greater than the diameter of the steel pipe 1, which is beneficial for the installation and welding of the steel pipe 1.

[0031] The width of the first load-bearing beam 4 is set to 90-100cm.

[0032] In this embodiment, the width is 90cm.

[0033] The steel pipes 1 are provided with a first stiffening plate 2 and a second stiffening plate 3 to provide stability and support.

[0034] The first stiffener 2 includes a first inclined plate 21 and a pair of first horizontal plates 22. The first horizontal plates 22 are fixedly connected to the steel pipe 1. The first inclined plates 21 are provided in pairs and are arranged crosswise. The first inclined plates 21 are connected to the first horizontal plates 22.

[0035] The second stiffener 3 includes a vertical plate 32, a second inclined plate 33 and a pair of second horizontal plates 31. The second horizontal plates 31 are fixedly connected to the steel pipe 1. The two ends of the vertical plate 32 are fixedly connected to the second horizontal plates 31. The second inclined plate 33 is provided with a pair of second horizontal plates 31 connected to it.

[0036] A construction mesh plate 7 is fixedly connected between the steel pipes 1, and the mesh plate 7 is located above the first stiffening plate 2 and the second stiffening plate 3.

[0037] The positioning mechanism 6 includes a insertion shaft 63, two sets of engaging components, and a limiting shaft 62 connected to the engaging components. The engaging components are located at both ends of the limiting shaft 62, and the engaging component at the bottom of the limiting shaft 62 is fixed to the steel pipe 1. The engaging components include a pair of clamps 61 connected by bolts. The inner wall of the clamps 61 is provided with a slot 611, and a top block 612 is provided in the slot 611. The outer wall of the clamps 61 is provided with a limiting arm 613, and the included angle between adjacent limiting arms 613 is 90°. The limiting shaft 62 is inserted into the limiting arm 613. The limiting shaft 62 is provided with a first limiting plate 621 and a second limiting plate 622. The first limiting plate 621 limits the insertion depth of the limiting shaft 62, and the second limiting plate 622 limits the height of the engaging components above. The clamps 61 are provided with insertion holes for inserting the insertion shaft 63.

[0038] When the positioning mechanism 6 is applied, firstly, a top block 612 of suitable size is selected according to the diameter of the steel pipe 1, so that the top block 612 supports the outer wall of the steel pipe 1. Then, the clamps 61 are locked together with bolts to form a complete clamp. The top blocks 612 of different sizes can adapt to steel pipes 1 of different diameters. Then, the clamps 61 are inserted into the insert shaft 63, and the end of the insert shaft 63 pushes the steel pipe 1. The clamps 61 are fixed on the steel pipe 1 by drilling holes on the surface of the steel pipe 1 for the insert shaft 63 to be inserted, or by welding the insert shaft 63 to the steel pipe 1, so as to prevent slippage and thus achieve the limiting function. The bottom locking assembly of the positioning shaft 62 provides a fixed support. The corresponding insertion shaft 63 can be disassembled by pulling out the insertion shaft 63 or by first unlocking the clamp and then cutting off the insertion shaft 63. Furthermore, during installation, one end of the limiting shaft 62 is sequentially inserted into the limiting arm 613, and then the locking assembly at the top of the limiting shaft 62 is successively inserted into the top of the limiting shaft 62 and supported by the first limiting plate 621. This makes the locking assemblies at both ends of the limiting shaft 62 concentric. When the upper steel pipe 1 is installed, it is inserted into the clamp of the upper locking assembly to ensure that the steel pipe 1 is installed and welded concentrically.

[0039] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "upper end," "lower end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A split-load type underwater steel pipe driven pile, comprising a steel pipe, a first split-load beam, a second split-load beam, and a positioning mechanism for connecting and positioning the steel pipe; characterized in that... The first load-sharing beam and the second load-sharing beam have the same structure, but the length of the first load-sharing beam is shorter than that of the second load-sharing beam. The first load-sharing beam is located below the second load-sharing beam and is fixedly connected to it. The first load-sharing beam is located above the steel pipe and is fixedly connected to it. A fixedly connected steel pipe is located above the second load-sharing beam and is concentrically arranged with the steel pipe below the first load-sharing beam. The first load-sharing beam consists of a pair of double-jointed "I"-beams, which are fixedly connected by a fixing plate. By using the load-sharing beam, the load is distributed and carried, avoiding concentration on a single steel pipe and causing severe settlement.

2. The split-load type underwater steel pipe driven pile according to claim 1, characterized in that... The width of the first load-bearing beam is greater than the diameter of the steel pipe, which is beneficial for the installation and welding of the steel pipe.

3. A split-load underwater steel pipe driven pile according to claim 1, characterized in that... The width of the first load-bearing beam is set to 90-100cm.

4. A split-load underwater steel pipe driven pile according to claim 3, characterized in that... The width of the first load-bearing beam is set to 90.

5. A split-load underwater steel pipe driven pile according to claim 1, characterized in that... The positioning mechanism includes a plug shaft, two sets of engaging components, and a limiting shaft connected to the engaging components. The engaging components are located at both ends of the limiting shaft, and the engaging component at the bottom of the limiting shaft is fixed to a steel pipe. The engaging components include a pair of clamps connected by bolts. The inner wall of the clamps is provided with a slot, and a top block is inserted into the slot. The outer wall of the clamps is provided with limiting arms, and the included angle between adjacent limiting arms is 90°. The limiting shaft is inserted into the limiting arms. The limiting shaft is provided with a first limiting plate and a second limiting plate. The first limiting plate limits the insertion depth of the limiting shaft, and the second limiting plate limits the height of the engaging components above. The clamps are provided with insertion holes for inserting the plug shaft.

6. A split-load underwater steel pipe driven pile according to claim 1, characterized in that... The steel pipes are provided with a first stiffening plate and a second stiffening plate to provide stability and support.

7. A split-load underwater steel pipe driven pile according to claim 6, characterized in that... The first stiffener includes a first inclined plate and a pair of first horizontal plates. The first horizontal plates are fixedly connected to steel pipes. The first inclined plates are provided in pairs and are arranged crosswise. The first inclined plates are connected to the first horizontal plates.

8. A split-load underwater steel pipe driven pile according to claim 6, characterized in that... The second stiffener includes a vertical plate, a second inclined plate, and a pair of second horizontal plates. The second horizontal plates are fixedly connected to steel pipes, and the two ends of the vertical plate are fixedly connected to the second horizontal plates. The second inclined plate is provided with a pair of second horizontal plates connected to it.

9. A split-load underwater steel pipe driven pile according to claim 1, characterized in that... A construction mesh plate is fixedly connected between the steel pipes, and the mesh plate is located above the first stiffening plate and the second stiffening plate.

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