Lifting ship for steel sheet piles

Abstract

The utility model relates to the technical field of steel sheet pile construction, and provides a lifting ship for steel sheet piles, which comprises a ship body and a hanging bracket, the hanging bracket is connected with the ship body, one end of the hanging bracket far away from the ship body exceeds the edge of the ship body, and a pulley assembly is arranged at one end of the hanging bracket far away from the ship body; the winch is connected with the ship body, a hoisting cable is wound around the winch, the end, away from the winch, of the hoisting cable bypasses the pulley assembly and is connected with a first lifting appliance, and the first lifting appliance is used for being connected with a steel sheet pile; the operation platform is connected to the end, close to the hanging bracket, of the ship body, and the end, away from the ship body, of the operation platform extends towards the pulley assembly and exceeds the edge of the ship body; the water ballast tank is arranged at the end, away from the hanging bracket, of the ship body, and the water ballast tank can be used for water filling or water draining. The technical problem that in the prior art, the scheme that the steel sheet pile is pulled out integrally through a ground excavator and a vibratory hammer cannot process the steel sheet pile with the length larger than the maximum lifting height can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel sheet pile construction technical field, especially a kind of crane ship for steel sheet pile. BACKGROUND

[0002] Steel sheet pile is a plate structure, when using, multiple steel sheet piles are driven into the ground, and adjacent two steel sheet piles are connected with each other, so as to realize the purposes of supporting, retaining soil and waterproofing, and is commonly used in the construction of water conservancy engineering buildings such as roadbed, embankment and wharf; when the steel sheet pile needs to be removed for subsequent construction or upgrading, the existing removal method is usually to pull out the steel sheet pile from the ground by using a combination of a ground excavator and a vibration hammer.

[0003] However, the length of the steel sheet pile needs to be less than the maximum lifting height of the ground excavator, and for some occasions with high requirements for supporting, retaining soil and waterproofing, such as wharf occasions, the steel sheet pile is usually driven into hard soil layer and below, and the deepest part can reach 40m or more, which is far beyond the maximum lifting height of the commonly used ground excavator. If the ground excavator and the vibration hammer are still used to pull out the steel sheet pile, the ground excavator will reach the maximum height, but the lower part of the steel sheet pile will still be underground and cannot be pulled out. Therefore, a new type of steel sheet pile removal device needs to be developed. SUMMARY

[0004] The utility model aims at overcoming the technical problem that the scheme of using a ground excavator and a vibration hammer to pull out the steel sheet pile as a whole cannot handle the steel sheet pile with a length exceeding the maximum lifting height, and provides a crane ship for steel sheet pile.

[0005] In the first aspect, the utility model provides a crane ship for steel sheet pile, which comprises a ship body, and further comprises:

[0006] a hanger connected with the ship body, the end of the hanger away from the ship body beyond the edge of the ship body, and a pulley assembly arranged at the end of the hanger away from the ship body;

[0007] a winch connected with the ship body, a hoisting rope wound around the winch, and the end of the hoisting rope away from the winch passing through the pulley assembly and connected with a first lifting tool for connecting the steel sheet pile;

[0008] a working platform connected with the end of the ship body close to the hanger, the end of the working platform away from the ship body extending towards the direction of the pulley assembly and beyond the edge of the ship body;

[0009] a ballast tank arranged at the end of the ship body away from the hanger, and capable of filling water or draining water.

[0010] Compared with the existing technology of using a ground excavator to pull out the steel sheet piles, this solution uses a hanger and a corresponding winch and a first lifting device set on the hull to lift the steel sheet piles. Since the hull floats on the water, as long as the sum of the water depth and the maximum lifting height of the hanger is greater than the length of the steel sheet piles, the hull can move in the water with the steel sheet piles without making the maximum lifting height greater than the length of the steel sheet piles, thereby greatly reducing the demand for lifting height; and the ballast water tank can ensure the force balance at both ends of the hull by adjusting the water level inside it, thereby preventing the hull from capsizing.

[0011] At the same time, the hull of this solution is also equipped with a working platform at the same end of the hanger. The working platform extends in the direction of the pulley assembly, that is, the direction where the steel sheet piles are located. Workers can approach the steel sheet piles through the working platform and cut the steel sheet piles, thereby dividing the steel sheet piles into at least two smaller steel sheet pile segments, and then each steel sheet pile segment can be hoisted and transported separately. Compared with directly transporting the entire steel sheet pile, it has lower operation difficulty and higher operation efficiency.

[0012] Preferably, a second sling is connected to the working platform, and the second sling is used to connect the steel sheet piles.

[0013] When cutting steel sheet piles, this solution can connect the portion of the steel sheet pile below the predetermined cutting position to the working platform to maintain the position of the lower portion of the steel sheet pile relative to the hull unchanged, thereby preventing the lower portion of the steel sheet pile from sinking again or even tipping over due to lack of restraint after the worker cuts the steel sheet pile into two parts, thereby causing a safety accident; at the same time, it is also beneficial for the worker to quickly reconnect the lower portion of the steel sheet pile to the first hoist and lift it for the next cutting operation.

[0014] Preferably, the second spreader comprises at least two hooks.

[0015] This proposal recommends a specific second sling structure. The hook has a simple structure and is easy to connect. When connecting, it only requires drilling holes or welding lugs on the steel sheet piles. This can reduce the production cost of the second sling and improve the connection efficiency between the second sling and the steel sheet piles.

[0016] Preferably, a support truss is connected to the top surface and / or bottom surface of the working platform.

[0017] This solution can improve the strength and rigidity of the working platform, giving the working platform a greater load-bearing capacity to support the weight of workers and cutting equipment, and reducing the risk of collapse, deformation and instability of the working platform.

[0018] Preferably, when the support truss is arranged on the top surface of the working platform, a cable is further connected to the top of the support truss, and one end of the cable away from the support truss is connected to the hull.

[0019] This solution can further improve the strength and rigidity of the work platform.

[0020] Preferably, the number of the working platforms is greater than one, and the working platforms are distributed at intervals along the axis direction of the pulley assembly.

[0021] In this solution, at least two working platforms are arranged at intervals along the axial direction of the pulley assembly. When lifting the steel sheet pile, the steel sheet pile is placed between two adjacent working platforms, so that the steel sheet pile can be cut from both sides at the same time, thereby improving the efficiency of the steel sheet pile cutting operation.

[0022] Preferably, a safety guardrail is provided on the top surface of the working platform.

[0023] This solution can prevent workers from falling from the working platform.

[0024] Preferably, the hanger includes at least two first diagonal braces spaced apart along the axis of the pulley assembly, one end of the first diagonal brace is connected to the hull, and the other end of the first diagonal brace is inclined toward the outside of the hull and extends beyond the edge of the hull, and a crossbeam is connected between two adjacent first diagonal braces.

[0025] This solution forms a portal frame through the first diagonal brace and the crossbeam, which can ensure that the hanger has sufficient strength and rigidity to lift the steel sheet piles, reducing the risk of collapse, deformation and instability of the hanger due to the load generated by the steel sheet piles.

[0026] Preferably, the hanger further includes a second diagonal brace, which is located on a side of the first diagonal brace close to the edge of the hull, one end of the second diagonal brace is connected to the hull, and the other end of the second diagonal brace is connected to an end of the first diagonal brace away from the hull.

[0027] In this solution, the first diagonal brace and the second diagonal brace together form an inverted V-shaped structure, also known as an A-frame, which can further increase the strength and rigidity of the hanger and prevent the hanger from collapsing, deforming and becoming unstable due to the load generated by the steel sheet piles.

[0028] Preferably, the cradle and the work platform are connected to the bow of the hull, and the ballast water tank is arranged at the stern of the hull.

[0029] Since taller steel sheet piles are also heavier, if the hanger is set on the side of the hull, the weight of the steel sheet piles will have a significant negative impact on the hull's initial stability, wind resistance, wavekeeping and other performance. Therefore, this plan recommends setting the hanger at the bow, which can make the load of the steel sheet piles act on the center axis of the hull as much as possible, thereby ensuring the hull's initial stability, wind resistance, and wavekeeping, and facilitating the lifting of heavier steel sheet piles.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The utility model provides a kind of crane ship for steel sheet pile, hoist is carried out to steel sheet pile by being provided with hanger and corresponding winch and first lifting appliance on ship body, and work platform is provided at the same end of hanger, ballast water tank is provided at the end away from hanger;Personnel can approach steel sheet pile by work platform, and cutting operation is carried out to steel sheet pile, so that steel sheet pile is divided into at least two size smaller steel sheet pile segments, and then each steel sheet pile segment can be respectively hoisted and transported, compared with directly transporting entire steel sheet pile, the present scheme can greatly reduce the demand of hoisting steel sheet pile to lifting height, with lower operation difficulty and higher operation efficiency;And ballast water tank can guarantee the force balance of both ends of ship body by adjusting water level inside, prevent ship body from overturning accident. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a kind of crane ship for steel sheet pile of the utility model's partial side view structure schematic Figure 1 ;

[0033] Figure 2 It is a kind of crane ship for steel sheet pile of the utility model in the state of connecting steel sheet pile partial side view structure schematic

[0034] Figure 3 It is a kind of crane ship for steel sheet pile of the utility model's partial simplified side view structure schematic

[0035] Figure 4 It is the main view structure schematic of the hanger of a kind of crane ship for steel sheet pile of the utility model

[0036] Figure: 1-ship body;2-hanger;3-pulley assembly;4-winch;5-first lifting appliance;6-work platform;7-steel sheet pile;

[0037] 21-first inclined strut;22-second inclined strut;23-crossbeam;41-lifting cable;61-second lifting appliance;62-support truss;63-cable;64-safety guardrail. DETAILED DESCRIPTION

[0038] The present application will be further described in detail below in conjunction with test examples and specific embodiments. But this should not be understood as the scope of the above-mentioned subject matter of the present application is limited to the following examples, any technology realized based on the content of the present application belongs to the scope of the present application.

[0039] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating orientation or positional relationships such as "upper," "lower," "left," "right," "center," "inside," and "outside" are based on the orientation or positional relationships shown in the accompanying drawings, or are the orientation or positional relationships in which the inventive product / device / apparatus is typically placed when in use. These terms indicating orientation or positional relationships are merely for the purpose of facilitating the description of the present invention or simplifying the description of the specific embodiments to facilitate a quick understanding of the solutions by technicians. They do not indicate or imply that a particular device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship, and therefore should not be construed as limiting the present invention.

[0040] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simply understood that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the present invention.

[0041] In addition, the expressions “first”, “second”, “third”, etc. in the terms are merely used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0042] In addition, in the description of the embodiments of the present invention, "several," "plurality," and "a number" represent at least two. It can also be any number such as two, three, four, five, six, seven, eight, nine, or even more than nine.

[0043] Furthermore, in the description of the technical solution of the present invention, unless otherwise expressly specified, defined, or limited, the terms "disposed," "installed," "connected," "connected," "provided with," "laid," and "arranged" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welded, riveted, bolted, threaded, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communicative; they may be direct, indirect via an intermediate medium, or internally connected between two components.

[0044] Example 1

[0045] like Figures 1 to 4 As shown, a lifting vessel for steel sheet piles includes a hull 1, and a hanger 2, a winch 4, a work platform 6 and a ballast water tank arranged on the hull 1; the hanger 2 is connected to the hull 1, and the end of the hanger 2 away from the hull 1 exceeds the edge of the hull 1, and the end of the hanger 2 away from the hull 1 is provided with a pulley assembly 3; the winch 4 is connected to the hull 1, and a lifting rope 41 is wound around the winch 4, and the end of the lifting rope 41 away from the winch 4 passes around the pulley assembly 3 and is connected to a first sling 5, which is used to connect steel sheet piles 7; the work platform 6 is connected to the end of the hull 1 close to the hanger 2, and the end of the work platform 6 away from the hull 1 extends toward the pulley assembly 3 and exceeds the edge of the hull 1; the ballast water tank is provided at the end of the hull 1 away from the hanger 2, and the ballast water tank can be filled with water or drained.

[0046] In the above embodiment, the hull 1 can be in various forms, including but not limited to a round-bottom hull 1, a V-shaped hull 1, a pointed hull 1, a flat-bottom hull 1, such as a barge.

[0047] In the above embodiment, the specific structural form of the hanger 2 includes but is not limited to a portal frame, an L-shaped frame, and a special-shaped frame, as long as the end thereof away from the hull 1 can extend from the edge of the hull 1 to facilitate the lifting of the steel sheet piles 7; the specific distance that the hanger 2 extends out of the edge of the hull 1 depends on the size of the steel sheet piles 7 to be lifted, as long as interference between the steel sheet piles 7 and the hull 1 can be avoided.

[0048] In the above embodiment, the specific shape of the working platform 6 includes but is not limited to a straight line, an L shape, and a U shape, and the connection between the working platform 6 and the hull 1 can be a fixed connection or a movable connection, such as a sliding connection or a rotating connection, so as to facilitate the adjustment of the angle or distance of the working platform 6 relative to the steel sheet pile 7; the specific distance that the working platform 6 extends out of the edge of the hull 1 depends on the size of the steel sheet pile 7 to be hoisted, as long as the staff can get close to the steel sheet pile 7 and start cutting the steel sheet pile 7.

[0049] In the above embodiment, the specific structural form of the first sling 5 includes but is not limited to a hook, a magnetic device, and a clamping device.

[0050] In an optional embodiment, the cradle 2 and the work platform 6 are connected to the bow of the hull 1 , and the ballast water tank is provided at the stern of the hull 1 .

[0051] In an optional embodiment, a second sling 61 is connected to the work platform 6, and the second sling 61 is used to connect the steel sheet pile 7. The specific structure of the second sling 61 includes but is not limited to a hook, a magnetic device, and a clamping device.

[0052] In an optional embodiment, if Figure 1As shown, the second sling 61 includes at least two hooks.

[0053] In an optional embodiment, if Figure 1 As shown, a support truss 62 is connected to the top surface and / or bottom surface of the work platform 6 .

[0054] In an optional embodiment, if Figure 1 As shown, when the support truss 62 is arranged on the top surface of the working platform 6, the top of the support truss 62 is also connected to a cable 63, and one end of the cable 63 away from the support truss 62 is connected to the hull 1.

[0055] In an optional embodiment, the number of the working platforms 6 is greater than one, and the working platforms 6 are distributed at intervals along the axial direction of the pulley assembly 3 .

[0056] In an optional embodiment, if Figure 1 As shown, a safety guardrail 64 is provided on the top surface of the working platform 6 .

[0057] In an optional embodiment, if Figure 3 and Figure 4 As shown, the hanger 2 includes at least two first diagonal braces 21 spaced apart along the axial direction of the pulley assembly 3, one end of the first diagonal brace 21 is connected to the hull 1, and the other end of the first diagonal brace 21 is inclined toward the outside of the hull 1 and extends beyond the edge of the hull 1, and a crossbeam 23 is connected between two adjacent first diagonal braces 21.

[0058] In an optional embodiment, the hanger 2 also includes a second diagonal brace 22, which is located on the side of the first diagonal brace 21 close to the edge of the hull 1, one end of the second diagonal brace 22 is connected to the hull 1, and the other end of the second diagonal brace 22 is connected to the end of the first diagonal brace 21 away from the hull 1.

[0059] In an optional embodiment, the number of cross beams 23 between two adjacent first diagonal braces 21 is greater than one, and the cross beams 23 are distributed at intervals along the length direction of the first diagonal braces 21 .

[0060] In an optional embodiment, a stiffening rib is provided between the bottom side of the first diagonal brace 21 and the hull 1 to disperse the stress at the bottom of the first diagonal brace 21 and improve the structural strength of the connection between the first diagonal brace 21 and the hull 1 .

[0061] When using this embodiment to hoist the steel sheet pile 7, the following steps can be followed:

[0062] Connect the first sling 5 to the top of the steel sheet pile 7, start the winch 4 to lift the steel sheet pile 7; connect the second sling 61 to the part of the steel sheet pile 7 below the working platform 6; send staff to board the working platform 6 and start cutting the steel sheet pile 7 until the steel sheet pile 7 is cut into two sections, and move the steel sheet pile 7 section above the working platform 6 to other locations, such as other barges; reconnect the first sling 5 to the top of the steel sheet pile 7 section below the working platform 6, and re-raise the steel sheet pile 7, and then the next cutting operation can be carried out.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lifting vessel for steel sheet piles, comprising a hull (1), characterized in that Also includes: A hanger (2), the hanger (2) being connected to the hull (1), an end of the hanger (2) away from the hull (1) extending beyond an edge of the hull (1), and a pulley assembly (3) being provided at the end of the hanger (2) away from the hull (1); A winch (4), the winch (4) being connected to the hull (1), a hoisting cable (41) being wound around the winch (4), an end of the hoisting cable (41) away from the winch (4) passing around the pulley assembly (3) and connected to a first sling (5), the first sling (5) being used to connect a steel sheet pile (7); A working platform (6), the working platform (6) being connected to one end of the hull (1) close to the hanger (2), and the end of the working platform (6) being away from the hull (1) extending toward the pulley assembly (3) and beyond the edge of the hull (1); A ballast water tank is provided at one end of the hull (1) away from the hanger (2), and the ballast water tank can be filled with water or drained.

2. A lifting vessel for steel sheet piles according to claim 1, characterized in that: A second sling (61) is connected to the work platform (6), and the second sling (61) is used to connect the steel sheet pile (7).

3. A lifting vessel for steel sheet piles according to claim 2, characterized in that: The second sling (61) comprises at least two hooks.

4. A lifting vessel for steel sheet piles according to claim 1, characterized in that: The top surface and / or bottom surface of the working platform (6) is connected to a supporting truss (62).

5. A lifting vessel for steel sheet piles according to claim 4, characterized in that: When the support truss (62) is arranged on the top surface of the working platform (6), the top of the support truss (62) is also connected to a cable (63), and the end of the cable (63) away from the support truss (62) is connected to the hull (1).

6. A lifting vessel for steel sheet piles according to any one of claims 1 to 5, characterized in that: The number of the working platforms (6) is greater than one, and the working platforms (6) are distributed at intervals along the axial direction of the pulley assembly (3).

7. A lifting vessel for steel sheet piles according to any one of claims 1 to 5, characterized in that: The top surface of the working platform (6) is provided with a safety guardrail (64).

8. A lifting vessel for steel sheet piles according to any one of claims 1 to 5, characterized in that: The hanger (2) comprises at least two first diagonal braces (21) spaced apart along the axial direction of the pulley assembly (3), one end of the first diagonal brace (21) is connected to the hull (1), the other end of the first diagonal brace (21) is inclined toward the outside of the hull (1) and exceeds the edge of the hull (1), and a crossbeam (23) is connected between two adjacent first diagonal braces (21).

9. A lifting vessel for steel sheet piles according to claim 8, characterized in that: The hanger (2) further comprises a second diagonal brace (22), the second diagonal brace (22) being located on a side of the first diagonal brace (21) close to an edge of the hull (1), one end of the second diagonal brace (22) being connected to the hull (1), and the other end of the second diagonal brace (22) being connected to an end of the first diagonal brace (21) away from the hull (1).

10. A lifting vessel for steel sheet piles according to any one of claims 1 to 5, characterized in that: The cradle (2) and the operating platform (6) are connected to the bow of the hull (1), and the ballast water tank is arranged at the stern of the hull (1).

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