Auxiliary deviation correcting device for sinking open caisson without drainage

Abstract

The utility model belongs to the technical field of open caisson construction, and discloses a non-drainage sinking open caisson auxiliary deviation rectifying device which comprises a steel sheet pile, two water jetting steel pipes are arranged on the inner wall of one side of the steel sheet pile side by side, and two annular buckles are arranged on the side walls of the water jetting steel pipes side by side in a sleeved mode. And two mounting bolts are symmetrically mounted between the corresponding sides of the annular buckle and the steel sheet pile, the bottom of the water jetting steel pipe is connected with a high-pressure water gun spray head, the top of the water jetting steel pipe is connected with a threaded cylinder, and the outer side of the threaded cylinder is in threaded connection with a water supply hose. By means of the scheme, the problems that due to the fact that thin-layer sand is clamped in silt of some project sites and the construction site is limited, a long-arm excavator cannot evenly excavate a soil layer below the blade foot of the open caisson, a sand layer on one side of the open caisson is deposited below the blade foot, and uneven deviation is extremely prone to being generated in the sinking process are solved.

Description

Technical Field

[0001] This utility model belongs to the field of caisson construction technology, specifically an auxiliary correction device for caissons that are not drained during sinking. Background Technology

[0002] During the construction of caissons, tilting is prone to occur. After the caisson tilts, it needs to be corrected. Currently, there are various methods used in the construction of caissons in China to correct tilting, such as the main methods of deflection correction, large-angle tilt correction, and asymmetrical soil removal correction, supplemented by external backfilling and excavation.

[0003] However, the following problems were found in the implementation of the relevant technologies: due to the fact that some project sites are located in silt mixed with thin layers of sand and the construction site is limited, the soil layer under the cutting edge of the caisson cannot be uniformly removed by the long-arm excavator. The sand layer on one side of the caisson accumulates under the cutting edge, which is very easy to cause uneven deviation during the sinking process. None of the above methods are suitable for solving the vertical displacement deviation of this caisson. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides an auxiliary correction device for caissons that does not require drainage. This device effectively solves the problem of uneven sinking of caissons. By flushing away the silt and sand accumulated at the cutting edge of the caisson through two high-pressure water jets on one side of the steel sheet pile, the caisson is slowly corrected. This device has the advantage of shortening the correction time during the non-drainage sinking process. Furthermore, it utilizes existing machinery and materials on the construction site, resulting in low cost.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary correction device for a non-drained sinking caisson, comprising a steel sheet pile, two water-jetting steel pipes arranged side by side on one inner wall of the steel sheet pile, two annular buckles sleeved side by side on the side wall of the water-jetting steel pipes, and two mounting bolts symmetrically installed between the annular buckles and the corresponding side of the steel sheet pile, a high-pressure water gun nozzle connected to the bottom of the water-jetting steel pipe, a threaded cylinder connected to the top of the water-jetting steel pipe, and a water supply hose threadedly connected to the outer side of the threaded cylinder.

[0006] Preferably, rubber sheets are bonded to the outer walls of both symmetrical sides of the sheet pile, and the rubber sheets are flush with the corresponding sides of the sheet pile.

[0007] Preferably, the sheet pile has multiple reinforcing ribs fixedly inserted side by side inside, and the reinforcing ribs are flush with the corresponding sides of the sheet pile.

[0008] Preferably, an installation block is installed on one side of the outer wall of the steel sheet pile, and the top of the installation block is constructed with an installation hole.

[0009] Preferably, the mounting block and the sheet pile are provided with multiple fixing holes arranged side by side on their corresponding sides, and fixing bolts are screwed between the corresponding fixing holes.

[0010] Preferably, multiple diagonal bracing plates are welded side-by-side between the bottom of the mounting block and the corresponding side of the sheet pile.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model effectively solves the problem of caisson sinking due to soil and sand accumulation at the cutting edge of the caisson, saving construction time and correction costs, and creating good economic and social benefits.

[0013] 2. This utility model has the characteristics of simple construction technology, easy for construction personnel to master, improved construction efficiency, and effective shortening of construction cycle, and is an economical and reasonable construction method. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the water jetting steel pipe of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the structure of the steel sheet pile of this utility model on the other side;

[0018] Figure 5 This is a schematic diagram of the structure of the mounting block of this utility model.

[0019] In the diagram: 1. Steel sheet pile; 2. Water jetting steel pipe; 3. Ring buckle; 4. Mounting bolt; 5. Mounting bolt; 6. Threaded cylinder; 7. Water supply hose; 8. Rubber plate; 9. Reinforcing rib; 10. Mounting block; 11. Fixing bolt; 12. Diagonal brace plate. Detailed Implementation

[0020] 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.

[0021] like Figures 1 to 5As shown, this utility model provides an auxiliary correction device for a non-drained sinking caisson, including a steel sheet pile 1. Two water-jetting steel pipes 2 are arranged side by side on one inner wall of the steel sheet pile 1. The water-jetting steel pipes 2 are ordinary seamless steel pipes with an inner diameter of 54mm and a wall thickness of 0.5mm. The length of each steel pipe is determined to be 12m according to the length of the steel sheet pile. Two annular buckles 3 are fitted side by side on the side wall of the water-jetting steel pipes 2, and two mounting bolts 4 are symmetrically installed between the annular buckles 3 and the corresponding side of the steel sheet pile 1. Any loose sections need to be welded, and care must be taken to prevent the water jetting steel pipe 2 from being welded through. Ensure that the water jetting steel pipe 2 can be stably fixed to the corresponding side of the steel sheet pile 1. The bottom of the water jetting steel pipe 2 is connected to a high-pressure water gun nozzle 5, and the top of the water jetting steel pipe 2 is connected to a threaded cylinder 6. The threaded connection facilitates the connection of the water supply hose 7, and the outer thread of the threaded cylinder 6 is connected to the water supply hose 7. The other end of the water supply hose 7 is connected to an external high-pressure water pump. The high-pressure water pump pumps water through the water jetting steel pipe 2 and sprays it out from the high-pressure water gun nozzle 5.

[0022] Specifically, rubber sheets 8 are bonded to the outer walls of both sides of the sheet pile 1, and the rubber sheets 8 are flush with the corresponding sides of the sheet pile 1 to prevent wear on the outer walls of the sheet pile 1 on the corresponding sides.

[0023] Furthermore, multiple reinforcing ribs 9 are fixedly inserted side by side inside the sheet pile 1, which can increase the structural strength of the sheet pile 1, making it more durable, and the reinforcing ribs 9 are flush with the corresponding sides of the sheet pile 1.

[0024] Furthermore, an installation block 10 is installed on one outer wall of the sheet pile 1, and the top of the installation block 10 has an installation hole. The installation block 10 can be connected to the driving and pulling machine through the installation hole, and the driving and pulling machine can also directly clamp the sheet pile 1 for construction.

[0025] It is worth noting that multiple fixing holes are provided side by side on the corresponding sides of the mounting block 10 and the sheet pile 1, and fixing bolts 11 are screwed between the corresponding fixing holes to increase the stability of the connection between the mounting block 10 and the sheet pile 1.

[0026] It is worth noting that multiple diagonal bracing plates 12 are welded side by side between the bottom of the mounting block 10 and the corresponding side of the sheet pile 1, which can further increase the stability of the connection between the mounting block 10 and the sheet pile 1.

[0027] Working principle: Connect the water supply hose 7 to the external high-pressure water pump, start the driving and pulling machine to clamp the steel sheet pile 1, and drive the steel sheet pile 1 to move slowly downward along the caisson wall through the driving and pulling machine. At the same time, start the high-pressure water pump. The high-pressure water pump pumps water through the water jetting steel pipe 2 and sprays it out from the high-pressure water gun nozzle 5. The high-pressure water sprayed through the high-pressure water gun nozzle 5 forms a "water knife" to cut the mud and sand, and locally cuts the soil and sand layer around the cutting edge. This construction process can effectively correct the deviation of the caisson.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] 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 non-drained sinking caisson auxiliary correction device, comprising steel sheet piles (1), characterized in that: Two water jetting steel pipes (2) are arranged side by side on one inner wall of the sheet pile (1). Two annular buckles (3) are fitted side by side on the side wall of the water jetting steel pipe (2). Two mounting bolts (4) are symmetrically installed between the annular buckles (3) and the corresponding side of the sheet pile (1). A high-pressure water gun nozzle (5) is connected to the bottom of the water jetting steel pipe (2). A threaded cylinder (6) is connected to the top of the water jetting steel pipe (2). A water supply hose (7) is threaded to the outside of the threaded cylinder (6).

2. The auxiliary correction device for non-drained sinking caissons according to claim 1, characterized in that: The outer walls of the two symmetrical sides of the sheet pile (1) are bonded with rubber plates (8), and the rubber plates (8) are flush with the corresponding sides of the sheet pile (1).

3. The auxiliary correction device for non-drained sinking caissons according to claim 1, characterized in that: The sheet pile (1) has multiple reinforcing ribs (9) fixedly inserted side by side inside, and the reinforcing ribs (9) are flush with the corresponding sides of the sheet pile (1).

4. The auxiliary correction device for non-drained sinking caissons according to claim 1, characterized in that: The sheet pile (1) has an installation block (10) installed on one side of its outer wall, and the top of the installation block (10) has an installation hole.

5. The auxiliary correction device for non-drained sinking caissons according to claim 4, characterized in that: The mounting block (10) and the sheet pile (1) are provided with multiple fixing holes on their corresponding sides, and fixing bolts (11) are screwed between the corresponding fixing holes.

6. The auxiliary correction device for non-drained sinking caissons according to claim 4, characterized in that: Multiple diagonal bracing plates (12) are welded side by side between the bottom of the mounting block (10) and the corresponding side of the sheet pile (1).

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