JP2989415B2 - Piling work boat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pile driving work ship having a tiltable pile driving tower, and more particularly to a pile driving work for driving a long pile.

[0002]

2. Description of the Related Art FIG. 8 shows an example of a conventional pile driving work boat, in which 1 is a hull holding a pile driving device, 2 is a pile driving tower, 3 is a pile driving machine, and 4 is a pile driving machine. 5 is a tilting device for the pile driving tower 2, 6 is a pile, 7 is a pulley for lifting the pile driving machine 3, 8
Is a pulley for mounting the stake 6 to the leader 4.

[0003]

However, when a long pile is driven by the conventional pile driving work boat as described above, a long leader 4 is required to reach the surface of the water or reach the water. Normally, the reader 4 must be used in the middle. In addition, the replenishment leader may come into contact with the bottom of the water unless it is frequently attached and detached.
In a slewing type pile driving machine that rotates at an angle, the hull 1 and the leader 4
Not only interferes with the work but also causes a great obstacle when the tower 2 and the reader 4 are stored behind. Further, in recent years, pile driving work around the airport is subject to height restrictions in the time zone of departure and arrival of aircraft. In this case, it is necessary to lower the height of the entire work boat to a certain value.

[0004]

In order to solve the above-mentioned problems, according to the present invention, a guide for slidably holding a pile driving leader is provided at the tip of a pile driving tower, and a lower portion of the pile driving leader is provided. Is slidably held by a catch fork, a lifting fulcrum is provided at an intermediate portion of the pile driving leader, and a pulling device is configured to be able to move up and down to form a pile driving work boat.

[0005]

According to the present invention, as described above, the leader of a pile driving work boat can be moved up and down and stopped at an arbitrary position. It is possible to perform the casting operation, the driving of the pile close to the water surface, or the driving of the pile in the water by the continuous continuous operation. Also, an excellent effect that it is possible to easily cope with work in which the height is restricted in an area near the airport is obtained.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the figure, the same reference numerals as those described above indicate the same parts. That is, in the figure, 1 is a hull holding a pile driving device, 2 is a pile driving tower, 3 is a pile driving machine, 4 is a leader of a pile driving machine, 5
Is a tilting device for the pile driving tower 2, 6 is a pile, 7 is a pulley for lifting the pile driver 3, 8 is a lifting pulley for attaching the pile 6 to the leader 2, 9 supports the lower part of the leader 2, A catch fork 10 for setting a stake angle is a machine room equipped with the stake tower 2 and winches.

In this embodiment, a guide 11 for slidably holding the stakeout leader 4 is provided at the tip of the stakeout turret 2, and a lower portion of the stakeout leader 4 is connected to a catch fork 9.
Slidably held, and a lifting fulcrum 12 is provided at an intermediate portion of the stakeout leader 4, and the stakeout leader 4 can be raised and lowered by a pulley device 13 having one end connected to the fulcrum 12.

FIGS. 2 to 4 show details of the pile driving device. The guide 11 is pivotally supported at the tip of a tower (jib boom) 2 by a shaft 14, and a guide groove 11a of the guide 11 is provided.
A guide rail 4a integrally formed with the pile driving leader 4 is slidably fitted.

The pulley 13a at the lower part of the pulley device 13 is connected via a cover 13b to a lifting fulcrum (bracket) 12 protruding from the side surface of the pile driving leader 4 with a pin 13c. One end 13e of the rope 13d is fixed to the upper part of the tower 2 (see FIG. 2), and the other side of the rope 13d is
The pulley 13a and the pulleys 13f, 13 provided above the tower 2.
The wire is wound around a winch 15 provided on the machine room 10 through the g.

The catch fork 9 has a bracket 9a protruding from its free end, and a cable 16 having one end fixed thereto is guided above the machine room 10 via guide pulleys 17 and 18 pivotally supported on the upper part of the tower 2. Is wound around a winch 19 provided in the vehicle.

FIGS. 5 to 7 show the working steps of the stakeout operation performed by using the stakeout work boat of the present invention. FIG. 5 shows a state in which the stakeout leader 4 is raised by the pulley device 13. , Pile 6
3 shows an initial state in which the object is lifted by the pulley 8.

FIG. 6 shows a state in which the pile 6 is driven into the underwater ground to some extent by the pile driving machine 3, in which case the pile driving leader 4 is slightly lowered from the state shown in FIG.

FIG. 7 shows a state immediately before the completion of the pile driving operation. In this case, the pile driving leader 4 is at the lowest position, and the lower end of the pile driving leader 4 is immersed in the water. Therefore, there is no protrusion above the pile driver 2.

[0014]

As described above, according to the present invention, the leader 4 of the pile driving work boat can be moved up and down and stopped at an arbitrary position. The continuous pile-up operation of the shank pile 6, the pile near the water surface, or the underwater pile is possible.
Also, an excellent effect is obtained in that the height of the reader 4 can be easily coped with the work whose height is restricted in an area near the airport by lowering the reader 4.

[Brief description of the drawings]

FIG. 1 is an elevation view of a pile driving work ship of the present invention.

FIG. 2 is a detailed view of a pile driving tower of FIG. 1;

FIG. 3 is a partial view of the pile driving leader of FIG. 2;

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is an explanatory diagram of an initial working process of the pile driving work ship of the present invention.

FIG. 6 is an explanatory view of a work process in a middle stage of the pile driving work ship of the present invention.

FIG. 7 is an explanatory view of the final working steps of the pile driving work boat of the present invention.

FIG. 8 is an elevation view showing an example of a conventional pile driving work boat.

[Explanation of symbols]

 Reference Signs List 1 hull 2 pile driving tower 3 pile driving machine 4 pile driving leader (leader) 5 tilting device 6 pile 7 pulley for lifting pile driving machine 8 pile pulling pulley 9 catch fork 10 machine room 11 guide 12 lifting fulcrum 13 pulley device 14 Axis 15 Winch 16 Cable 17,18 Guide pulley 19 Winch

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-59-134227 (JP, A) JP-A-62-276120 (JP, A) JP-A-49-85804 (JP, A) 168540 (JP, U) Actually open 1986-89040 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) E02D 7/00-13/10

Claims (1)

(57) [Claims] 1. A guide for slidably holding a stakeout leader at the tip of a stakeout turret, and a lower portion of the stakeout leader is slidably held by a catch fork. A pile driving work ship, characterized in that a lifting fulcrum is provided at a portion thereof and the pulley device makes it possible to move up and down.