JP6074017B1 - Pile driving system - Google Patents

Abstract

Pile driving capable of further improving work efficiency when a pile is driven using a work ship equipped with a crane and a pile holder base ship that is detachably secured to the rim of the work ship. Provide an installation system. In a state where a pile holder trolley 1 is consolidated to the rim of a crane ship 11, image data of the pile holder 2 and its surroundings acquired by a pile holder monitoring camera 16 is installed in the crane ship 11. The pile holder is displayed in real time on the pile holder monitoring monitor in the control room 15, and the crane and the pile holder 2 are operated by the crane operating part and the pile holder operating part in the control room 15 based on the image data, respectively. The pile P1 held by 2 is driven using a hammer device 13 suspended by a crane. [Selection] Figure 5

Description

  The present invention relates to a pile driving system, and more particularly, to a pile driving system using a work ship equipped with a crane and a pile holder slab that is detachably secured to the rim of the work ship. .

  In order to place a pile on the bottom of the sea or the like, a pile driving ship equipped with a crane for hanging a hammer device for driving the pile and a leader for holding the pile is used. It is very expensive to equip other work vessels such as hoist ships with a leader that holds piles. In addition, since there are a limited number of pile-driving boats equipped with leaders, they may not be prepared quickly according to the demands of the site.

  Therefore, a pile holder trolley that can be detachably secured to a work ship equipped with a crane has been proposed (see Patent Document 1). If the pile holder carrier proposed in this document is used, piles can be driven using an ordinary crane ship not provided with a pile holder, which is beneficial.

  However, the crane ship and the pile holder trolley are separate bodies, and the crane and the pile holder are operated independently. Therefore, there is a problem that work efficiency cannot be improved unless operations are performed in cooperation with each other without waste.

Japanese Patent No. 53711791

  An object of the present invention is to improve work efficiency when driving piles using a work ship equipped with a crane and a pile holder slab that is detachably secured to the rim of the work ship. It is to provide a pile driving system that can be used.

In order to achieve the above object, a pile driving system according to the present invention includes a hammer device, a work ship including a crane in which the hammer device is suspended, and a pile holder, which is attached to and detached from the ship's rim. A pile driving system having a non-self-propelled pile holder base ship that is freely consolidated, a pile holder monitoring camera that acquires the image data of the pile holder and its surroundings in real time, and the pile holder monitoring A pile holder monitoring monitor for displaying image data acquired by the camera in real time; a control room installed in the work ship; the pile holder monitoring monitor; a crane operating unit for operating the crane; Ri Sonawa the pile holder operation portion for performing an operation of the pile holder to said control chamber, said In the state where the pile holder trolley has a plurality of ballast water chambers arranged side by side in the hull width direction or the hull longitudinal direction of the trolley, and the pile holder trolley is consolidated to the rim of the work ship, In the process of placing the pile by the pile holder and performing the placing work, the relative water volume of each of the ballast water chambers is adjusted to act on the pile holder trolley at a position corresponding to each of the ballast water chambers. By adjusting the size of the buoyancy force, control is performed to reduce the load acting on the consolidated portion between the pile holder carriage and the work vessel .
Further, another pile driving system according to the present invention includes a hammer device, a work ship including a crane in which the hammer device is suspended, and a pile holder that is detachably attached to the rim of the work ship. A pile driving system having a non-self-propelled pile holder base ship to be consolidated, and a pile holder monitoring camera that acquires image data of the pile holder and its surroundings in real time, and the pile holder monitoring camera A pile holder monitoring monitor for displaying the acquired image data in real time; a control room installed on the work boat; the pile holder monitoring monitor; a crane operating unit for operating the crane; and the pile A pile holder operation unit for operating the holder is provided in the control chamber, and the pile holder Either one of the trolley and the work ship has a convex portion, and the other has a concave portion, and the convex portion and the concave portion are fitted, so that the pile holder base boat is The construction is configured to be consolidated to the rim of the work ship, and includes a convex cap that fits into the concave portion, and the convex holder is secured when the pile holder trolley is consolidated to the rim of the work ship. The cap is configured to be removed from the concave portion.

  According to the present invention, a pile holder in a control room in which a pile holder and a peripheral image data acquired by a pile holder monitoring camera are installed in the work ship in a state where the pile holder base ship is consolidated to the rim of the work ship. It can be grasped in real time by the monitoring monitor. Then, based on the image data, the pile holder is operated using the pile holder operation unit in the control room, and the pile held by the pile holder is driven using a hammer device that is suspended from the crane. be able to. Moreover, a crane can be operated using the crane operation part in a control room. That is, since the crane and the pile holder can be operated intensively in the control room, it is possible to eliminate unnecessary operations as much as possible and further improve the work efficiency.

  Here, it has a suspended load monitoring camera that acquires the image data of the lower range of the hanging wire of the crane in real time, and a suspended load monitoring monitor that displays the image data acquired by the suspended load monitoring camera in real time, The suspended load monitoring monitor may be provided in the control room. According to this configuration, since the state of the crane's suspended load can be grasped in real time in the control room, it becomes possible to perform crane operation with higher accuracy and less waste.

  The pile holder trolley has a ballast water chamber, and the pile holder trolley is fixed to the rim of the work ship, and a pile is held by the pile holder to perform the placing work. By adjusting the amount of water in the water chamber, it is also possible to perform a control for reducing the load acting on the consolidated portion between the pile holder carrier and the work ship. According to this configuration, it is possible to suppress deformation and wear of the consolidated portion where a large load is easily applied by holding the pile.

  One of the pile holder carriage and the work boat has a convex portion, and the other has a concave portion, and the convex portion and the concave portion are fitted to each other, so that the pile holder The trolley is configured to be consolidated to the rim of the work ship, and includes a convex cap that fits into the concave portion, and when the pile holder trolley is consolidated to the rim of the work ship, The convex cap may be removed from the concave portion. According to this configuration, in a situation where the pile holder trolley is not consolidated to the rim of the work ship, the concave cap can be fitted and closed. Therefore, it is possible to prevent shells and the like from adhering to the concave portion, which is advantageous for smoothly consolidating the pile holder carrier to the rim of the work ship.

It is explanatory drawing which illustrates the structure of the pile placing system of this invention by planar view. It is explanatory drawing which illustrates the pile placing system of FIG. 1 by a side view. It is explanatory drawing which illustrates the control room | chamber interior of FIG. It is explanatory drawing which illustrates the pile holder trolley of FIG. 1 by planar view. It is explanatory drawing which illustrates the state which the pile holder trolley of FIG. 4 hold | maintained the pile by a side view. It is a side view which illustrates the pile holder trolley holding the pile diagonally in a side view. It is explanatory drawing which illustrates the pile holder of the state which bent the support | pillar by side view. It is explanatory drawing which illustrates the pile holder trolley holding the pile to splice in a side view. It is explanatory drawing which illustrates the process of splicing a pile by a side view. It is explanatory drawing which illustrates the concave part and convex cap of the ship's edge of a crane ship by planar view.

  Hereinafter, the pile driving system of the present invention will be described based on the embodiments shown in the drawings.

  As illustrated in FIGS. 1 to 4, the pile driving system of the present invention includes a hammer device 13, a crane ship 11, and a pile holder carriage 1. The hammer device 13 is suspended by a suspension wire 12 a provided on the crane 12 of the crane ship 11.

  The crane ship 11 is a work ship provided with a crane 12 and is not equipped with the pile holder 2. Examples of the crane ship 11 include a work ship in which a crane 12 is fixed in advance on the ship and a work ship on which a mobile crane vehicle is placed. A plurality of concave portions 14 formed in a concave shape in plan view are dotted on the rim of the crane ship 11.

  The pile holder carriage 1 has a pile holder 2 but is a non-self-propelled hull without a propulsion mechanism. In FIG. 1, the pile holder 2 is omitted and not shown. Details of the pile holder 2 will be described later. A plurality of convex portions 8 formed in a convex shape in a plan view are dotted on the rim of the pile holder carrier 1. The concave portion 14 and the convex portion 8 are fitted to each other by bringing them close to each other in the vertical direction, and the fitting is released by separating them vertically. Therefore, the pile holder carrier 1 is configured to be detachably secured to the rim of the crane ship 11 by fitting and releasing the fitting between the concave portion 14 and the convex portion 8. It is also possible to provide the concave portion 14 on the ship edge of the pile holder carrier 1 and provide the convex portion 8 on the ship edge of the crane ship 11.

  In this embodiment, the convex portion 8 is configured by a T-shaped metal body, and the concave portion 14 is configured by a C-shaped metal frame that fits into the convex portion 8. Not only the combination of the convex part 8 and the concave part 14 but various structures that can detachably fasten the pile holder carrier 1 to the rim of the crane ship 11 can be adopted.

  The pile holder carrier 1 has ballast water chambers 10a and 10b and a ballast water control unit 10c. In this embodiment, two ballast water chambers 10a and 10b are arranged side by side in the hull width direction of the pile holder carriage 1. The amount of ballast water stored in the ballast water chambers 10a and 10b is adjusted by the ballast water control unit 10c. The ballast water chambers 10a and 10b can also be arranged side by side in the longitudinal direction of the hull of the pile holder carriage 1. The number of ballast water chambers 10a and 10b is not limited to two, and may be an appropriate number.

  The pile driving system further includes a pile holder monitoring camera 16 and a control room 15 installed in the crane ship 11. In the control room 15, a pile holder monitoring monitor 17, a crane operation unit 20, And a pile holder operation unit 21. In this embodiment, a suspended load monitoring camera 18 and a suspended load monitoring monitor 19 provided in the control room 15 are further provided. In this embodiment, the operation room of the crane 12 is used as the control room 15, but the control room 15 can be installed at another position of the crane ship 11.

  One or a plurality of pile holder monitoring cameras 16 are provided, and acquire image data of the pile holder 2 and its surroundings in real time. It is preferable to acquire image data of the pile holder 2 and its surroundings in plan view, front view, and side view. The pile holder monitoring monitor 17 displays the image data acquired by the pile holder monitoring camera 16 in real time. The crane operation unit 20 is an instruction device for instructing the operation content for the crane 12 and causing the operation content to be performed. The pile holder operation unit 21 is an instruction device for instructing the operation content for the pile holder 2 and performing the operation content.

  One or a plurality of suspended load monitoring cameras 18 are provided, and acquire image data of a range below the suspension wire 12a of the crane 12 in real time. It is preferable to obtain image data of a planar view, a front view, and a side view of a lower range (a suspended load and its surroundings) of the suspension wire 12a. The pile holder monitoring camera 16 can also be used as the suspended load monitoring camera 18. The suspended load monitoring monitor 19 displays the image data acquired by the suspended load monitoring camera 18 in real time. The pile holder monitoring monitor 17 can also be used as the suspended load monitoring monitor 19.

  The specific configuration of the pile holder 2 is as follows.

  As illustrated in FIGS. 4 and 5, a base 7 a is placed on a rail 6 b extending in the front-rear direction of the hull on the pile holder carrier 1 via a roller 6 a. The base 7a moves in the front-rear direction of the hull along the rail 6b as the rod of the hydraulic cylinder 6c advances and retreats. A slide base 7b is installed on the base 7a so as to be movable in the ship width direction, and a swivel base 5 is installed on the slide base 7b. A casing 9a is fixed on the swivel base 5 so as to be turnable. The slide member 9b provided in the casing 9a is configured to move in the longitudinal direction of the casing 9a and protrude from the front end of the casing 9a by the advance and retreat of the rod of the hydraulic cylinder 9c connected to the rear end thereof. Yes.

  The support column 3 is attached to the front end portion of the slide member 9b through the rotating shaft 3a. A rear end portion of the hydraulic cylinder 9d is rotatably fixed on the slide member 9b, and a front end portion of the hydraulic cylinder 9d is rotatably fixed to the column 3. Therefore, as the rod of the hydraulic cylinder 9d advances and retreats, the column 3 rotates and tilts about the rotation shaft 3a in the front-rear direction.

  The support column 3 is provided with three holding arms 4A, 4B, and 4C that hold the pile P1 to be placed at intervals in the vertical direction. In this embodiment, the support column 3 can be bent between the upper and lower holding arms 4B and 4C. The number of holding arms 4A, 4B, 4C is preferably plural. Each holding arm 4A, 4B, 4C has the same structure and has a pair of arc-shaped arm portions 4m, 4m. The pair of arm portions 4m and 4m are rotated about the support shaft and opened as illustrated in FIG. Holding rollers 4r and 4r are provided on the inner peripheral surfaces of the respective arm portions 4m and 4m. The pair of arm portions 4m and 4m are closed as shown by a two-dot chain line in FIG. 2) is held movably in the vertical direction.

  Since the pile holder 2 is configured as described above, the pile holder 2 can be moved to any position on the pile holder carrier 1 and can be turned. Moreover, the support | pillar 3 which comprises the pile holder 2 is comprised so that it can incline at arbitrary angles within the predetermined angle range with respect to the perpendicular | vertical.

  Next, a method for placing the piles P1 and P2 on the underwater ground using this pile placing system will be described.

  First, the crane ship 11 and the pile holder carriage 1 are moved to the construction site. The pile holder trolley 1 can be towed to the construction site by the crane ship 11 or another ship, but can also be carried on the crane ship 11 and transported to the construction site.

  At the construction site, the pile holder carrier 1 is lifted by using the crane 12 and moved to a predetermined position (the position of the rim of the crane ship 11). Next, the pile holder carrier 1 is moved downward at that position, and the convex portion 8 is slid up and down with respect to the concave portion 14 to be fitted. As a result, the pile holder carrier 1 is consolidated to the edge of the crane ship 11. The crane 12 is operated in the control room 15 using the crane operation unit 20 while viewing the image data of the pile holder carriage 1 obtained in real time by the suspended load monitoring camera 18 through the suspended load monitoring monitor 19. The crane 12 can be operated while viewing the pile holder trolley 1 without using the suspended load monitoring monitor 19 or observing the pile holder trolley 1 in addition to the suspended load monitoring monitor 19.

  Next, the pile P1 suspended by the suspension wire 12a is held by the holding arms 4A, 4B, 4C so as to be vertically movable. Next, the pile holder 2 (stake P1) is set to a desired position and orientation (tilt).

  Thereafter, as illustrated in FIG. 5, the guide sleeve 13a of the hammer device 13 suspended by the suspension wire 12a is attached to the upper end of the pile P1. In this state, the pile P1 is driven into the underwater ground by the hammer device 13.

  When the crane 12 is operated based on the image data acquired by the suspended load monitoring camera 18, the state of the suspended load (pile holder carriage 1, hammer device 13, pile P1) from a necessary direction can be grasped. Therefore, it is possible to move the suspended load of the crane 12 to a desired position with high accuracy and perform crane operation with less waste.

  As the pile P1 is driven, the guide sleeve 13a approaches the holding arms 4A and 4B, so that the arm portions 4m and 4m of the holding arms 4A and 4B are sequentially opened. Thereby, driving of pile P1 is advanced avoiding interference with holding arms 4A and 4B and guide sleeve 13a.

  In the case where there is a hard ground layer that is inclined in the bottom ground into which the pile P1 is driven, the pile P1 that is driven has a characteristic that it is easy to be inclined and driven along the hard ground. Originally, if the pile P1 is placed vertically downward, it will be re-applied if it is placed at an inclination. In the present invention, the pile P1 is continuously held at a desired position and at a desired angle by the holding arms 4A, 4B, and 4C. Therefore, even if there is a hard stratum that is inclined in the water bottom ground, it can be placed without being shaken in an unintended direction.

  In FIG. 5, the pile P <b> 1 is driven vertically downward. However, by tilting the column 3, the pile P <b> 1 can be tilted and placed as illustrated in FIG. 6. As the pile P1 is driven obliquely, the suspension wire 12a is likely to interfere with the support column 3, so that the support column 3 is bent between the holding arms 4B and 4C as illustrated in FIG. Thereby, interference with the suspension wire 12a and the support | pillar 3 is avoided.

  When a new pile P2 is spliced against a pile P1 that has already been placed on the underwater ground, as shown in FIG. 8, the support arm 4A, 4B of the portion of the column 3 that is vertically erected is exemplified. Then, the new pile P2 suspended by the suspension wire 12a is brought closer. And the pile P2 is arrange | positioned inside a pair of arm part 4m and 4m in the state where each holding arm 4A and 4B was opened. Next, the pair of arm portions 4m and 4m are closed, and the pile P2 is held by the holding arms 4A and 4B.

  Next, the new pile P2 is directly coupled with the same inclination as the pile P1 already placed by inclining the portion of the support column 3 in a vertically standing state while suspending the new pile P2 with the suspension wire 12a. Set to the state. Next, as illustrated in FIG. 9, the hammer device 13 is attached to the upper end of the new pile P2 via the guide sleeve 13a, and the pile P2 is driven.

  The above-described operations for the pile holder 2 are performed in the control room 15 while the pile holder 2 and its peripheral image data acquired in real time by the pile holder monitoring camera 16 are viewed in real time through the pile holder monitoring monitor 17. 21 is used.

  If the pile holder 2 is operated based on the image data acquired by the pile holder monitoring camera 16, the position, the inclination angle, etc. of the column 3 (stakes P1, P2) from the necessary direction can be grasped. , P2 is extremely advantageous for placing the P2 accurately as set. In the pile driving system of the present invention, one or a plurality of operators can centrally operate the crane 12 and the pile holder 2 in the control chamber 15. Therefore, the crane 12 and the pile holder 2 can be operated in cooperation with each other while suppressing useless movement and useless waiting time. Thereby, it becomes possible to improve the work efficiency at the time of driving piles P1 and P2.

  By the way, in the state where the pile holder 2 holds the pile P1 (P2), the center of gravity of the pile holder carriage 1 moves to the side where the pile P1 exists, and the pile P1 exists in the pile holder carriage 1. The moment that tries to fall down is applied. For this reason, a large load acts on the convex portion 8 and the concave portion 14 that solidify the pile holder carrier 1 and the crane ship 11 due to this moment. The greater the weight of the pile P1 is, and the more the pile P1 is positioned away from the ship edge of the crane ship 11, the greater the load acting on the convex portion 8 and the concave portion 14 is. Accordingly, the convex portion 8 and the concave portion 14 are likely to be deformed and worn. If the convex portion 8 and the concave portion 14 are deformed or worn, it becomes difficult to fit each other, which causes a reduction in the efficiency of the placing work.

Therefore, in the process of placing the pile P1 by the pile holder 2 and performing the placing work, the amount of water in the ballast water chambers 10a and 10b may be adjusted. Referring to FIG. 5, the ballast water control unit 10c performs control to increase the amount of water in the ballast water chamber 10a as compared with the ballast water chamber 10b, thereby relatively increasing the buoyancy on the ballast water chamber 10a side. Thereby, the load which acts on the convex part 8 and the concave part 14 which solidify the pile holder trolley 1 and the crane ship 11 is reduced. Accordingly, deformation and wear of the convex portion 8 and the concave portion 14 can be suppressed.

  Since water and suspended matter are likely to stay in the concave portion 14, shellfish and the like may adhere and accumulate if the state is maintained for a long time. When shellfish or the like adheres, it becomes difficult to fit the convex portion 8 and the concave portion 14, which causes a reduction in the efficiency of the placing work.

  Therefore, as illustrated in FIG. 10, a convex cap 23 that fits into the concave portion 14 may be provided. In a situation where the pile holder carrier 1 is not consolidated to the rim of the crane ship 11, the convex cap 23 is fitted into the concave portion 14 and the surface of the concave portion is closed with the convex cap 23. Thereby, shellfish etc. cannot adhere to the concave-shaped part 14. When the pile holder carrier 1 is consolidated to the rim of the crane ship 11, the convex cap 23 is removed from the concave portion 14. In this way, it is advantageous to smoothly fasten the pile holder carrier 1 to the edge of the crane ship 11. A cushioning material such as rubber can be appropriately attached to the surface of the concave portion 14 to prevent rattling with the convex cap 23 and the convex portion 8 fitted thereto.

DESCRIPTION OF SYMBOLS 1 Pile holder base ship 2 Pile holder 3 Pole 3a Rotating shaft 4A, 4B, 4C Holding arm 4m Arm part 4r Holding roller 5 Swivel table 6a Roller 6b Rail 6c Hydraulic cylinder 7a Base 7b Slide base 8 Convex part 9a Casing 9b Slide member 9c, 9d Hydraulic cylinder 10a, 10b Ballast water chamber 10c Ballast water control unit 11 Crane ship 12 Crane 12a Hanging wire 13 Hammer device 13a Guide sleeve 14 Recessed portion 15 Control chamber 16 Pile holder monitoring camera 17 Pile holder monitoring monitor 18 Hanging load monitoring Camera 19 Suspended load monitoring monitor 20 Crane operation part 21 Pile holder operation part 22 Ballast water control part 23 Convex cap P1, P2 Pile

Claims (4)

A work ship having a hammer device, a crane in which the hammer device is suspended, and a non-self-propelled pile holder trolley that is provided with a pile holder and is detachably secured to the rim of the work ship. A pile driving system having
A pile holder monitoring camera that acquires the image data of the pile holder and its surroundings in real time, a pile holder monitoring monitor that displays the image data acquired by the pile holder monitoring camera in real time, and the work ship. It has a control chamber, and the pile holder monitor, a crane operation unit for performing an operation of the crane, Ri and pile holder operation portion for performing an operation of the pile holder Sonawa to the control chamber, the pile holder Theissen The pile holder has a plurality of ballast water chambers arranged side by side in the hull width direction or the hull front-rear direction. In the process of placing and holding the By adjusting the amount and adjusting the size of the buoyancy acting on the pile holder trolley at the position corresponding to each of the ballast water chambers, the consolidated portion between the pile holder trolley and the work ship is adjusted. A pile driving system characterized by performing control to reduce the acting load . A work ship having a hammer device, a crane in which the hammer device is suspended, and a non-self-propelled pile holder trolley that is provided with a pile holder and is detachably secured to the rim of the work ship. A pile driving system having
A pile holder monitoring camera that acquires the image data of the pile holder and its surroundings in real time, a pile holder monitoring monitor that displays the image data acquired by the pile holder monitoring camera in real time, and the work ship. It has a control chamber, and the pile holder monitor, a crane operation unit for performing an operation of the crane, Ri and pile holder operation portion for performing an operation of the pile holder Sonawa to the control chamber, the pile holder Theissen And one of the work boats has a convex portion, and the other has a concave portion, and the convex portion and the concave portion are fitted to each other so that the pile holder carriage can The pile holder is configured to be consolidated to a ship rim, and includes a convex cap that fits into the concave portion. Pile setting system characterized in that when the ship is consolidated on the boat side of the work ship, a configuration in which the convex cap is removed from the concave portion. One of the pile holder carriage and the work boat has a convex portion, and the other has a concave portion, and the convex portion and the concave portion are fitted to each other, so that the pile holder The trolley is configured to be consolidated to the rim of the work ship, and includes a convex cap that fits into the concave portion, and when the pile holder trolley is consolidated to the rim of the work ship, The pile driving system according to claim 1 , wherein the convex cap is configured to be removed from the concave portion. A suspended load monitoring camera for acquiring in real time image data of the lower range of the crane suspension wire; and a suspended load monitoring monitor for displaying in real time the image data acquired by the suspended load monitoring camera. The pile driving system according to any one of claims 1 to 3, wherein a monitoring monitor is provided in the control room.

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