Deepwater super-long steel sheet pile cofferdam construction device

Abstract

The deepwater super-long steel sheet pile cofferdam construction device comprises a construction platform and a lifting operation vehicle, one side of a lifting sliding seat of the lifting operation vehicle is fixedly connected with a supporting plate, the upper side of the supporting plate is slidably connected with a moving plate, the upper side of the moving plate is fixedly connected with a support, and the support is provided with a vibration hammer and a chuck. A guide rail is fixedly connected to the upper side of the supporting plate, two sliding blocks are oppositely connected to the guide rail in a sliding mode, hanging rods are hinged to the side faces of the sliding blocks, and clamping blocks are fixedly connected to the lower ends of the hanging rods. Through the supporting effect on the two sides of the steel sheet piles and in the direction of the steel sheet piles which are installed in place, the adjacent steel sheet piles are firmly spliced and are not prone to deformation, and therefore the construction quality of the deepwater steel sheet piles is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cofferdam steel sheet pile construction devices, and in particular to a deep-water super-long steel sheet pile cofferdam construction device. Background Art

[0002] Larsen steel sheet piles, also known as U-shaped steel sheet piles, play an important role in bridge cofferdam construction, large pipeline laying, temporary ditches and other projects. At present, deep-water super-long steel sheet piles need to position and install the first super-long steel sheet pile, and then the remaining steel sheet piles are spliced ​​with the first steel sheet pile as the base point. The existing installation limit frame has low guidance and installation accuracy for the cofferdam super-long steel sheet piles inserted into deep-water construction areas. In some deep-water areas, super-long steel sheet piles increase with the increase of water depth and water flow impact during cofferdam construction. Simple limit frames cannot guarantee the precise installation position of the super-long steel sheet piles; and the joints between the subsequent steel sheet pile construction and the installed steel sheet piles will be deformed due to uneven riverbed, offset insertion position, etc., affecting the construction quality. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings existing in the prior art and to propose a deep-water super-long steel sheet pile cofferdam construction device, thereby solving the problems existing in the prior art.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A deepwater super-long steel sheet pile cofferdam construction device comprises a construction platform and a lifting work vehicle, one side of a lifting slide seat of the lifting work vehicle is fixedly connected to a support plate, the upper side of the support plate is slidably connected to a moving plate, the upper side of the moving plate is fixedly connected to a bracket, the bracket is provided with a vibrating hammer and a chuck, the upper side of the support plate is fixedly connected to a guide rail, two sliders are slidably connected to the guide rail, the side of the slider is hingedly connected to a suspension rod, the lower end of the suspension rod is fixedly connected to a clamping block, the clamping surface of the clamping block is provided with a spring support plate, the spring support plate is evenly provided with rollers, the outer sides of the two clamping blocks are respectively fixedly connected to a side plate, each side plate is hingedly connected to an inclined rod, and the hinge shaft of the inclined rod is provided with a torsion spring;

[0006] One side of each oblique rod is fixedly connected to an oblique round rod, the distance between one end of the two oblique round rods connected to the oblique rods is greater than the distance between the outer ends of the two oblique round rods, the two oblique round rods are slidably connected to sleeve rings respectively, the two sleeve rings are hingedly connected to a straight rod, and the middle of the straight rod is fixedly connected to a scraper.

[0007] Preferably, the scraper is in a "V" shape.

[0008] Preferably, the support plate is driven to slide by a hydraulic cylinder, and the two slide blocks are driven to slide by a motor-bidirectional screw rod or a double-head telescopic rod.

[0009] Preferably, the lower end of the oblique rod is hingedly connected to the arc plate, and a torsion spring is provided on the hinge axis of the arc plate, and convex teeth are evenly provided on the bottom of the arc plate.

[0010] Preferably, a sliding connection sleeve is sleeved on the outer side of one end of the oblique round rod away from the oblique rod, the end of the oblique round rod is fixedly connected to the piston plate, the piston plate is slidingly and sealingly connected to the inner cavity wall of the sleeve, and a support spring is fixedly connected between the piston plate and one end of the inner cavity wall of the sleeve;

[0011] The oblique rod and the oblique round rod are hollow tube structures and are connected to each other. A through hole is set at one end of the oblique round rod, and the through hole is located in the sleeve. An extension cavity is set on the side of the clamping block, and an extrusion block is set in the extension cavity. A cavity is set inside the clamping block, and a partition is set between the extension cavity and the cavity. The sliding rod is fixedly connected to the inner side of the extrusion block, and the push plate slides into the cavity and is provided with an anti-slip boss. The inner cavity of the oblique rod is connected to the cavity of the clamping block through a hose.

[0012] Preferably, the side of the side plate contacting the oblique rod is fixedly connected to the electromagnet.

[0013] The advantages of the present invention are: a deep-water super-long steel sheet pile cofferdam construction device provided by the present invention, in the initial state, the straight rod and the scraper are directly below the steel sheet piles to be driven in the initial state, when the arc plate on one side contacts the riverbed, the outer ends of the two inclined rods move outward by rotation, on the one hand, they support the clamping block through the reaction force to avoid insufficient supporting force due to the large length of the suspension rod, and in the process of the inclined rod rotating to gradually provide supporting force for the clamping block, the position spacing between the two inclined round rods connecting the inclined rods is enlarged, and due to the inclination of the inclined round rod, the sleeve slides in the direction away from the inclined rod, that is, the horizontal movement of the straight rod and the scraper (scraping on the riverbed surface) is realized and avoids directly below the steel sheet piles, so that the gravel and pebbles that may appear at the position where the steel sheet piles are about to be driven are kept away from the construction area, thereby avoiding the deviation of the steel sheet piles and the deformation of the steel sheet piles.

[0014] After the straight rod and the scraper slide away from the bottom of the steel sheet pile to be driven, the two oblique rods provide support force to the steel sheet pile from both sides, the sleeve is squeezed to push the sleeve to move, and the inner cavity of the sleeve is compressed to expand the space required by the cavity through the communicating vessel principle, thereby pushing the sliding rod and the extrusion block outward, and the extrusion block is close to the steel sheet pile that has been installed in place, so that the steel sheet pile to be driven has support on both sides and in the direction of the steel sheet pile that has been installed in place, and the adjacent steel sheet piles are firmly spliced ​​and not easily deformed, thereby improving the construction quality of deep-water steel sheet piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a basic structural schematic diagram of the present invention;

[0016] Figure 2 yes Figure 1 A local enlarged view of point E in FIG.

[0017] Figure 3 Schematic diagram of the connection structure between the oblique round rod and the casing;

[0018] Figure 4 It is a schematic diagram of the structure of removing the construction platform and the lifting work vehicle of the present invention;

[0019] Figure 5 It is a schematic diagram of the connection structure between the support plate and the movable plate of the present invention;

[0020] Figure 6 It is a schematic diagram of the structure of the clamping block;

[0021] Figure 7 It is a schematic diagram of the clamping block clamping the steel sheet pile. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] Example 1

[0024] like Figures 1 to 7 As shown, a deep-water super-long steel sheet pile cofferdam construction device provided by the present invention comprises a construction platform 1 and a lifting work vehicle 2, wherein one side of the lifting slide of the lifting work vehicle 2 is fixedly connected to a support plate 3, the upper side of the support plate 3 is slidably connected to a moving plate 4, the support plate 3 is driven to slide by a hydraulic cylinder, the upper side of the moving plate 4 is fixedly connected to a bracket 41, the bracket 41 is provided with a vibrating hammer 42 and a chuck 43, the upper side of the support plate 3 is fixedly connected to a guide rail 44, the guide rail 44 is slidably connected to two sliders 45, and the two sliders 45 are connected to slide toward each other. The sliding is driven by a motor-bidirectional screw rod or a double-head telescopic rod 451, and the double-head telescopic rod 451 is hydraulically or electrically driven. The side of the slider 45 is hingedly connected to the suspension rod 46, and the lower end of the suspension rod 46 is fixedly connected to the clamping block 5. The clamping surface of the clamping block 5 is provided with a spring support plate, and the spring support plate is evenly provided with rollers to reduce the guide friction. The two clamping blocks 5 are two symmetrical trapezoidal blocks. The clamping blocks 5 are adapted to the depression on one side of the steel sheet pile 10. After the multiple steel sheet piles 10 are spliced, the depressions are staggered on the left and the right ( Figure 7 As shown, the two clamping blocks 5 are adapted to support and guide through the overall displacement of the moving plate 4, and the outer sides of the two clamping blocks 5 are respectively fixedly connected to a side plate 6, each side plate 6 is hingedly connected to an inclined rod 7, and a torsion spring is provided on the hinge axis of the inclined rod 7, and the side of the side plate 6 contacting the inclined rod 7 is fixedly connected to an electromagnet;

[0025] The bracket 41 is provided with a vibrating hammer 42, a chuck 43, a guide rail 44, a slider 45, a hanger 46, a clamping block 5, a side plate 6, and a diagonal rod 7, which are integrally installed on the movable plate 4, and the movable plate 4 can adapt to the change of the orientation of adjacent steel sheet piles through the overall movement of the movable plate 4.

[0026] One side of each inclined rod 7 is fixedly connected to an inclined round rod 71, and the spacing between one end of the two inclined round rods 71 ​​connected to the inclined rod 7 is greater than the spacing between the outer ends of the two inclined round rods 71, and the two inclined round rods 71 ​​are slidably connected to the rings 72 respectively, and the two rings 72 are hingedly connected to the straight rod 73, and the middle part of the straight rod 73 is fixedly connected to the scraper 74, which is in a "V" shape, so that the gravel and the like can be pushed to the two sides of the steel sheet pile insertion position during the scraping process.

[0027] The lower end of the inclined rod 7 is hingedly connected to the arc plate 711, and a torsion spring is set on the hinge axis of the arc plate 711. The bottom of the arc plate 711 is evenly provided with convex teeth. The arc plate 711 prevents the lower end of the inclined rod 7 from being immediately inserted into the riverbed and not moving, so that the inclined rod 7 can slide outward for a certain distance. The convex teeth play a role of gripping the ground, and together play a role of lateral support for the clamping block 5.

[0028] In this embodiment, the inclined rod 7 is close to one side edge of the clamping block 5. Figure 2 As shown, the straight rod 73 and the scraper 74 are located directly below the steel sheet pile to be driven in the initial state. When the arc plate 711 on one side contacts the riverbed, the outer ends of the two inclined rods 7 move outward by rotation. On the one hand, they support the clamping block 5 through the reaction force to avoid insufficient supporting force due to the long length of the suspension rod 46. In the process of the inclined rod 7 rotating and gradually providing supporting force to the clamping block 5, the distance between the two inclined round rods 71 ​​connecting the inclined rod 7 is enlarged. Due to the inclination of the inclined round rod 71, the collar 72 slides in the direction away from the inclined rod 7, that is, the horizontal movement of the straight rod 73 and the scraper 74 is realized (scraping on the riverbed surface) and avoiding directly below the steel sheet pile 10, so that the gravel and pebbles that may appear at the position where the steel sheet pile 10 is about to be driven are kept away from the construction area, thereby avoiding the displacement of the steel sheet pile 10 when being driven and avoiding the deformation of the steel sheet pile 10.

[0029] The side plate 6 contacts the electromagnet on one side of the inclined rod 7 to temporarily fix the rotated inclined rod 7, so that the straight rod 73 and the scraper 74 remain on the side of the steel sheet pile 10, to avoid the clamping block 5 from lifting after the construction of the steel sheet pile 10 is completed, to avoid the automatic resetting of the inclined rod 7, to avoid the inclined rod 7 from pressing against the side of the steel sheet pile 10 after the construction is completed, and to avoid deformation of the locking mouth of the steel sheet pile 10.

[0030] After completely leaving the water surface, the electromagnet is powered off and loses adsorption, the inclined rod 7 is reset, the straight rod 73 and the scraper 74 are re-positioned under the clamp 43, and a new steel sheet pile 10 is hoisted and clamped on the clamp 43 for subsequent construction.

[0031] In this embodiment, a sliding connection sleeve 8 is sleeved on the outer side of one end of the oblique round rod 71 away from the oblique rod 7, the end of the oblique round rod 71 is fixedly connected to a piston plate 81, the piston plate 81 is slidingly and sealingly connected to the inner cavity wall of the sleeve 8, and a support spring 82 is fixedly connected between the piston plate 81 and one end of the inner cavity wall of the sleeve 8;

[0032] The inclined rod 7 and the inclined round rod 71 are hollow tube structures and are interconnected. A through hole 83 is set at one end of the inclined round rod 71, and the through hole 83 is located in the sleeve 8. A protruding cavity 84 is set on the side of the clamping block 5, and an extrusion block 85 is set in the protruding cavity 84. A cavity 86 is set inside the clamping block 5, and a partition plate 87 is set between the protruding cavity 84 and the cavity 86. A sliding rod 88 is fixedly connected to the inner side of the extrusion block 85, and the sliding rod 88 slides into the cavity 86 and is provided with an anti-slip boss. The inner cavity of the inclined rod 7 is connected to the cavity 86 of the clamping block 5 through a hose 89.

[0033] After the straight rod 73 and the scraper 74 slide away from directly below the steel sheet pile 10 to be driven, the two inclined rods 7 provide support force to the steel sheet pile 10 from both sides, the ring 72 squeezes and pushes the casing 8 to move, and the inner cavity of the casing 8 is compressed to expand the required space of the cavity 86 through the principle of communicating vessels, thereby pushing the sliding rod 88 and the extrusion block 85 outward, and the extrusion block 85 is close to the steel sheet pile 10 that has been installed in place, so that the steel sheet pile 10 to be driven has support on both sides and in the direction of the steel sheet pile 10 that has been installed in place, and the adjacent steel sheet piles 10 are firmly spliced ​​and not easily deformed, thereby improving the construction quality of deep-water steel sheet piles.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A deepwater super-long steel sheet pile cofferdam construction device, characterized in that include: A construction platform (1) and a lifting work vehicle (2); One side of the lifting slide of the lifting work vehicle (2) is fixedly connected to a support plate (3), the upper side of the support plate (3) is slidably connected to a movable plate (4), and the upper side of the movable plate (4) is fixedly connected to a bracket (41); a vibrating hammer (42) and a clamp (43) are arranged on the crossbeam of the bracket (41), the upper side of the support plate (3) is fixedly connected to a guide rail (44), two sliders (45) are slidably connected to each other on the guide rail (44), and the side of the slider (45) is hingedly connected to a suspension rod (46); The lower end of the suspension rod (46) is fixedly connected to a clamping block (5), a spring support plate is arranged on the clamping surface of the clamping block (5), rollers are evenly arranged on the spring support plate, the outer sides of the two clamping blocks (5) are respectively fixedly connected to a side plate (6), each side plate (6) is hingedly connected to an inclined rod (7), and a torsion spring is arranged on the hinge axis of the inclined rod (7); One side of each oblique rod (7) is fixedly connected to an oblique round rod (71); the distance between one end of the two oblique round rods (71) connected to the oblique rod (7) is greater than the distance between the outer ends of the two oblique round rods (71); the two oblique round rods (71) are respectively slidably connected to sleeve rings (72); the two sleeve rings (72) are hingedly connected to a straight rod (73); and the middle of the straight rod (73) is fixedly connected to a scraper (74).

2. A deepwater super-long steel sheet pile cofferdam construction device according to claim 1, characterized in that: The scraper (74) is in a V-shape.

3. A deepwater super-long steel sheet pile cofferdam construction device according to claim 1, characterized in that: The support plate (3) is driven to slide by a hydraulic cylinder, and the two slide blocks (45) are driven to slide by a motor-bidirectional screw rod or a double-head telescopic rod (451).

4. A deepwater super-long steel sheet pile cofferdam construction device according to claim 1, characterized in that: The lower end of the oblique rod (7) is hingedly connected to the arc-shaped plate (711), and a torsion spring is arranged on the hinge axis of the arc-shaped plate (711), and convex teeth are evenly arranged on the bottom of the arc-shaped plate (711).

5. The deepwater super-long steel sheet pile cofferdam construction device according to claim 1 is characterized in that: A sliding connection sleeve (8) is sleeved on the outer side of one end of the oblique round rod (71) away from the oblique rod (7); the end of the oblique round rod (71) is fixedly connected to a piston plate (81); the piston plate (81) is slidingly and sealingly connected to the inner cavity wall of the sleeve (8); and a support spring (82) is fixedly connected between the piston plate (81) and one end of the inner cavity wall of the sleeve (8); The inclined rod (7) and the inclined round rod (71) are hollow tube structures and are interconnected. A through hole (83) is provided at one end of the inclined round rod (71), and the through hole (83) is located in the sleeve (8). A protruding cavity (84) is provided on the side of the clamping block (5), and an extrusion block (85) is provided in the protruding cavity (84); a cavity (86) is provided inside the clamping block (5), and a partition (87) is provided between the protruding cavity (84) and the cavity (86); a sliding rod (88) is fixedly connected to the inner side of the extrusion block (85), and a push plate slides into the cavity (86) and is provided with an anti-slip boss; the inner cavity of the inclined rod (7) and the cavity (86) of the clamping block (5) are connected through a hose (89).

6. The deepwater super-long steel sheet pile cofferdam construction device according to claim 1 is characterized in that: The side of the side plate (6) that contacts the inclined rod (7) is fixedly connected to the electromagnet.

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