JPH09125354A - Water surface working device and water surface pile press-in method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sufficient reaction on an appropriate point on the water in case of pressing in a pile material in the bottom by receiving reaction from a pontoon. SOLUTION: A pile material press-in device 4 is mounted on a pontoon 2 so as to transfer on the water, a pier stud 3 is lowered from the pontoon 2 on the targeting water position so as to be brought in contact with the bottom, a pier stud fixing screw 6 is projected from the pier stud 3 so as to advance into the ground, and then an initial press-in works of pile materials is started by the pile material press-in device 4. This constitution can fix the pier stud 3 in the bottom part completely, and the pontoon attitude is kept constant against the force of raising the pontoon 2 and a sufficient reaction can be provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface working apparatus for carrying out a work of press-fitting a resistance material into the ground on the water such as a river or the sea, and a ground material on the water using a resistance material press-fitting machine. The present invention relates to a water pile press-fitting construction method in which a reinforcing material is press-fitted.

[0002]

2. Description of the Related Art Conventionally, when press-fitting a reinforcing material for abutments or earth retaining materials to the bottom of the water, a pile material press-fitting device is placed on a legged barge called a spat barge to carry out construction work on the water. Is being done. As a pile material press-fitting device of this type, there is one in which a press-fitting machine main body is fixed to an existing pile material or the like so that a new pile material can be press-fitted while receiving a reaction force from the earth (JP (See Sho 60-88722, etc.). According to this pile material press-fitting device, construction can be performed without causing pollution such as noise, vibration, and water turbidity.

[0003]

However, when the above-described pile material press-fitting device is placed on a spat carrier and the first pile material is press-fitted (initial press-fitting work), the anti-stress material is press-fitted into the ground. Since the reaction force to operate is only the total weight of the barge and the pile material press-fitting device, in order to obtain a sufficient reaction force (initial reaction force), a large ship or a large anti-material press-fitting device can be used. Was needed.

Therefore, according to the present invention, when performing a surface operation such as press-fitting a pile material into the water bottom by obtaining a reaction force from the barge, the barge or the like can be sufficiently positioned at any water position without increasing the size of the barge. A first object of the present invention is to provide a surface working apparatus capable of obtaining a large reaction force. A second object of the present invention is to provide a water pile press-fitting construction method capable of performing anti-material press-fitting work on the water by using a small ship and the anti-material press-fitting machine.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 is provided with a pontoon and a pedestal provided on the peripheral portion of the pedestal so as to be able to move up and down. Assuming a surface working device in which the column is brought into contact with the bottom of the water to keep the attitude of the barge constant, the pedestal is projected from the lower end of the pedestal while rotating to enter the ground of the bottom of the water. It is characterized by having a pedestal fixing screw.

According to the above-described water work apparatus, after the pedestal is lowered from the pontoon and the lower end of the pedestal is brought into contact with the bottom of the water, the pedestal fixing screw is attached from the lower end of the pedestal. Since the pedestal can be completely fixed to the bottom of the water by projecting it while rotating and entering the bottom of the bottom of the water, it is possible to obtain reaction force from the pontoon and press the pile material into the bottom of the water. When performing, it is possible to always maintain a constant attitude of the ship against the force acting on the ship and obtain a sufficient reaction force.

According to a second aspect of the present invention, the boat is provided with a pedestal and a pedestal provided on the peripheral portion of the pedestal so as to be able to move up and down. In the above-mentioned water work device, the pontoon is supported by the hull weight-added water tank that takes in and stores the surrounding water, and the pedestal supporting the pedestal in a state where water is collected in the hull weight-added water tank. It is characterized in that it is provided with a hull lifting device for raising the ship.

[0008] According to the above-described surface work apparatus constructed as above, the weight of the hull is increased by taking in and storing the surrounding water in the hull weight-added water tank, and further the water is stored in the hull weight-added water tank. In this state, the pedestal is supported by the hull lifting device and the pedestal is raised to remove the influence of buoyancy and increase the substantial weight of the pedestal. It is possible to obtain a sufficient reaction force by keeping the hull attitude constant against the force acting on the pontoon when the work of pressing the pile material into the bottom of the water is performed.

A third aspect of the present invention is based on the device configuration according to the first or second aspect, and is a pile material press-fitting machine mounted and transferred on the pontoon, the main body and the lower side of the main body. And a clamp part for supporting the main body by gripping the upper end of the pile material press-fitted into the ground, and an elevating / lowering operation part provided so as to be vertically movable on the main body and press-fitting new pile material into the ground. It is characterized by having a pile material press-fitting machine consisting of and.

[0010] According to the above-mentioned water working apparatus which is resisted as described above, the initial press-fitting work of press-fitting the pile material to the bottom of the water by receiving the reaction force from the ship with the pile material press-in machine mounted on the ship is performed. At this time, it is possible to carry out the press-fitting work while keeping the hull posture constant against the force acting in the direction of lifting the pontoon and obtaining a sufficient initial reaction force.

The invention according to claim 4 is based on the device configuration according to claim 3, wherein a dummy pile material to be gripped by a clamp portion of the pile material press-fitting machine is fixedly provided on the upper surface of the pontoon. It is characterized by becoming.

According to the above-described water work apparatus constructed as described above, the upper end of the dummy pile material fixedly mounted on the pedestal is grasped by the clamp portion of the pile material press-fitting machine, so that the pile material press-fitting machine is supported. It can be transferred on the water in a state of being fixed to a ship, and when performing pile press-fitting construction work, dummy pile material can be used instead of the existing pile material, and the pile material press-in machine can start the pile material press-fitting work.

According to a fifth aspect of the present invention, there is provided a method for press-fitting a water pile, in which a pile material press-fitting machine is used to press a new pile material into the ground while gripping an upper end portion of the pile material pressed into the ground. The pedestal is lowered from the pontoon at the desired water position to bring the lower end of the pedestal into contact with the bottom of the water, and the pedestal fixing screw built into the pedestal is mounted on the pedestal. After projecting while rotating from the lower end and entering the bottom of the water bottom,
It is characterized in that an initial press-fitting work of the pile material by the pile-material press-fitting machine is started in a state where the pile-material press-fitting machine is fixed to the carrier.

According to the above construction method, the pedestal is lowered from the pontoon to bring the lower end of the pedestal into contact with the water bottom, and the pedestal fixing screw is rotated and protruded from the lower end of the pedestal to fix the water bottom. Since the pedestal can be completely fixed to the bottom of the water by entering the ground, it is possible to resist the force acting in the direction of lifting the barge when performing the initial press-in work of the pile material by the pile material press-in machine. Therefore, the attitude of the barge can be kept constant and a sufficient initial reaction force can be obtained.

[0015]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view showing an embodiment of a surface work apparatus according to the present invention, and FIG. 2 is a side view of the same. The surface work apparatus 1 of this embodiment includes a substantially rectangular pedestal 2 and cylindrical pedestals 3, 3 provided at four corners of the pedestal 2.
And a pile material press-fitting machine 4 mounted on the ship 2.

.. are respectively inserted into through holes 5, 5, ..., Which vertically pass through the four corners of the main body of the pier 2, and are provided on the upper part of the pier 2. It can be moved up and down by driving a pedestal lifting mechanism (not shown).

Inside the pedestals 3, 3, ..., A pedestal fixing screw (hereinafter referred to as an anchor screw).
6 and 6 and screw driving devices 7 and 7 are provided. Each anchor screw 6, 6, ...
The upper end of the pedestal is supported by the screw drive devices 7, 7, ..., And can be retracted from the lower end openings of the pedestals 3, 3 ,. Each screw drive device 7, 7, ... Is a pedestal fixing operation of gradually rotating the anchor screws 6, 6 ,.
.. is reversed, and the pedestal fixing operation is performed to gradually store the pedestals in the pedestals 3 and 3 in accordance with the screw pitch.

The pile material press-fitting machine 4 is used for press-fitting or withdrawing the columnar pile material 7, 7, ... For reinforcement into the ground, and supports the main body 8 and the main body 8. A plurality of (three in this example) clamp parts 9, 9, 9 are provided, and an elevating operation part 10 supported by the main body so as to be elevatable.

The main body 8 has a base 11 for supporting the three clamp portions 9, 9, 9, a slider 12 supported on the base 11 so as to be horizontally slidable, and a vertical axis O for the slider 12. The movable head 13 is rotatably supported by a predetermined angle.

The clamp portions 9, 9, 9 are for holding the pile material P, and they are attached to the above-mentioned base 11 side by side at equal intervals. On the berth 2, there is a dummy bar 1
4a, 14b, 14c are fixedly arranged side by side at equal intervals, and by making these clamp parts 9, 9, 9 hold them, the pile material press-fitting machine 4 can be transferred on the water in a state of being fixed to the carrier 2. Has become.

The slider 12 is slid in the traveling direction of the pile press-fitting machine 4 by a hydraulic cylinder. When the slider 12 is driven, the movable head 13 and the elevating / lowering operation unit 10 move forward. Further, a crane 15 for supplying a new resisting material P to the elevating / lowering operation unit 10 is provided on the upper side of one side of the slider 12.

The raising / lowering operation unit 10 is configured to be driven up and down by a pair of hydraulic cylinders 16, 16 provided on both sides of the movable head 13. The lifting operation unit 10 includes a hydraulic chuck unit 1 that holds the outer peripheral portion of the anti-material P.
7, 17, ... Are provided. Pile P is Crane 1
5 and is inserted from above into the introduction hole 18 formed in the elevating / lowering operation part 10, and the chuck parts 17, 1
It is gripped by 7. Then, the pile material P is gripped by the chuck portions 17, 17, ... And the elevating operation portion 10 is lowered, so that the resistance material P can be press-fitted into the ground at the bottom of the water. It is possible to press fit the first pile material P1 and the second pile material P2 to the pontoon 2 with the three dummy members 14a, 14b, 14c held by the clamp portions 9, 9, 9. A notch 19 is provided so that it can be performed (see FIG. 3).

Next, the operation of the above-ground work apparatus 1 configured as described above will be described. The surface working apparatus 1 mounts the pile material press-fitting machine 4 on the pontoon 2 and transfers it on the water. Then, at the desired water position, the pedestals 3, 3, ... Are lowered from the pontoon 2 to bring the lower ends of the stanchions into contact with the water bottom, and then operate the screw drive devices 7, 7 ,. Screw 6,
6 、 ・ ・ Entering the bottom of the water,
・ Fix on the bottom of the water.

After that, the dummy members 14a, 14b, 14
The first press-fitting work of the pile material P1 is performed while c is being held by the clamp portions 9, 9, 9. After the first press-fitting operation of the pile material P1, the slider 12 moves forward,
As a result, the movable head 13 and the elevating and lowering movable part 10 are made of the pile material P.
The vehicle moves forward by a distance corresponding to the distance of one line. At that position, a new resisting material P2 is supplied to the elevating and lowering movable portion 10, and the second pressing material P2 is press-fitted.

When performing the press-fitting work (initial press-fitting work) of the first and second anti-friction members P1 and P2, a force to lift the barge 2 acts on the barge 2, but the pedestal 3 ,
.. are completely fixed to the bottom of the water by the screws 6, 6, .., so that the posture of the barge 2 is kept constant against the force acting in the direction of lifting the barge 2 for press fitting. The necessary reaction force (initial reaction force) can be obtained.

After completion of the press-fitting work of the second anti-material P2,
The chuck portion 17 of the elevating / lowering operation portion 10 is the second resisting material P2.
.. of the base 11 is released, and the cylinder of the slider 12 is contracted in that state to move the base 11 to the pile member P1.
Move forward by a distance corresponding to the distance between the lines. After that, each of the clamp portions 9, 9, ... Clamps the dummy resistance members 14b, 14c and the first resistance member P1 at this new position. After the base 11 has moved, the slider 12 moves forward, whereby the movable head 13 and the elevating / lowering movable portion 10 move forward by a distance corresponding to an interval of one pile material P. At that position, a new resisting material P is supplied to the ascending / descending movable portion 10, and 3
The press-fitting work of the second anti-material P3 is performed.

The pile press-fitting machine 4 automatically advances by repeating such steps, but when changing the arrangement direction of the resisting members P, the movable head 13 rotates about the vertical axis O by a predetermined angle. Perform the press-fitting work in this state.

Then, in this example, the press-fitting work of the fourth resisting material P4 is completed, and the clamp portions 9, 9,
.. The pile material press-in machine 4 will be separated from the pier 2 when the. Therefore, after the pile material press-fitting machine 4 is detached, the berth 2 can be moved to another work position and effectively utilized.

In FIG. 4, a pile member P is provided around the aged abutment 20 by using the above-water working apparatus 1 according to this embodiment.
An example of a work form in the case of press-fitting and reinforcing is shown. In the case of performing this type of work, in the conventional construction method, it was necessary to erect a platform for installing the pile material press-fitting machine 4, a work scaffold, etc. on the water.
According to the above, since the pile material press-fitting machine 4 is placed on the pontoon 2 and transferred to the vicinity of the abutment 20 over the water, the pile material press-fitting machine 4 can be automatically advanced to perform press-fitting work. Without this, the work of press-fitting the pile material P onto the water can be performed efficiently. Furthermore, according to the above-mentioned surface work apparatus 1, the abutment 20
After all the pile materials P have been constructed around the pile, the pile material press-in machine 4 can be recovered by the pontoon ship 2 as shown in FIG. The pile material press-fitting construction work can be performed even under the low bridge 21 where the crane cannot enter.

Note that the structure of the above-described working apparatus according to the present invention is not limited to the structure shown in the above embodiment. For example, as shown in FIG. 6, if the notch 19 is formed so as to reach the center of the pontoon 2 so that the first press-fitting work of the anti-ply material P1 can be performed at the center of the pontoon 2, The initial press-fitting work can be performed while obtaining a stable reaction force.

Further, as another means for obtaining a sufficient reaction force from the pontoon 2, a hull weight addition water tank for taking in and storing ambient water is provided in the pontoon 2 and the hull weight addition is carried out. It is also effective to operate the leg lifting mechanism while the water is stored in the water tank to raise the pontoon 2. That is, the weight of the hull is increased by taking in water into the hull weight-added water tank in the pontoon 2, and the hull lifting mechanism is used as the hull lifting means in a state where the water is stored in the hull weight-added water tank. By lifting the pedestal 2, the influence of buoyancy can be eliminated and the substantial weight of the pedestal 2 can be significantly increased. Therefore, when carrying out the initial press-fitting work for press-fitting the pile members P1 and P2, It is possible to obtain a sufficient reaction force by keeping the hull attitude constant against the force to lift the ship.

Further, in the description of the above-mentioned embodiments, the apparatus configuration provided with the anti-material press-fitting machine for press-fitting or withdrawing the columnar pile material has been described as an example, but the anti-material (pile) is made of steel of various shapes. It may be a sheet pile or a pile made of concrete or wood.

[0034]

According to the above-described water work apparatus of the present invention, the pedestal is lowered from the pontoon so that the lower end of the pedestal is brought into contact with the water bottom, and then the pedestal is fixed from the lower end of the pedestal. By rotating the projecting screw and projecting it into the ground at the bottom of the water, the pedestal can be completely fixed to the bottom of the water. When carrying out work or the like, it is possible to maintain a constant hull attitude against a force acting on the pontoon and obtain a sufficient reaction force.

According to the above-mentioned water surface work apparatus of the present invention, the weight of the hull is increased by taking in and storing the surrounding water in the hull weight-added water tank, and the water is further stored in the hull weight-added water tank. In this state, by lifting the pedestal by supporting the pedestal by the hull lifting device, the influence of buoyancy can be eliminated and the substantial weight of the pontoon can be increased. It is possible to obtain a sufficient reaction force by keeping the hull attitude constant against the force acting on the pontoon when performing work such as press-fitting the pile material to the bottom of the water.

According to the above-mentioned water work apparatus of the third aspect of the present invention, the initial press-fitting operation is performed in which the pile material is press-fitted into the water bottom by receiving the reaction force from the ship with the pile material press-in machine mounted on the ship. When
It is possible to perform a press-fitting operation while maintaining a constant hull attitude against a force acting in the direction of lifting the pontoon and obtaining a sufficient initial reaction force.

According to the fourth aspect of the present invention, there is provided a pile material press-fitting machine by causing the clamp portion of the pile material press-fitting machine to grip the upper end portion of the dummy pile material fixedly mounted on the pontoon. It can be transferred on the water in a state of being fixed to a pontoon, and when performing pile press-fitting construction work, dummy pile materials can be used in place of the existing anti-strength material, and the press-fitting work of the pile material by the pile material press-in machine can be started. .

According to the method for press-fitting a water pile according to the invention of claim 5, the pedestal is lowered from the pontoon so that the lower end of the pedestal is brought into contact with the water bottom, and the screw for fixing the pedestal from the lower end of the pedestal. The pedestal can be completely fixed to the bottom of the water by projecting it while rotating it and entering it into the ground of the bottom of the water. A sufficient initial reaction force can be obtained for the initial press-fitting work of the pile material by the machine.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a surface work apparatus according to the present invention.

FIG. 2 is a side view of the above water surface working apparatus.

FIG. 3 is a plan view showing a pontoon, which is a component of the above-mentioned water surface working apparatus, and a resistance material press-fitted by the water surface working apparatus.

FIG. 4 is a side view showing an example of a work form in a case where a pile material press-fitting construction work is performed around a bridge abutment using the above-mentioned water surface working apparatus.

FIG. 5 is a plan view showing an example of a work form of the above.

FIG. 6 is a plan view showing another embodiment of the surface working apparatus according to the present invention.

[Explanation of symbols]

 1 Water work device 2 Barge 3 Pillar 4 Piles press-fitting machine 5 Through hole 6 Screw for fixing pedestal 7 Screw drive device 8 Body of anti-material press-fitting machine 9 Clamping part 10 Lifting operating part 11 Base 12 Slider 13 Moving head 14a ~ 14c Dummy pile material P pile material P1 ~ P4 resistance material

Claims (5)

[Claims] 1. A pontoon and a pedestal that can be moved up and down along the peripheral edge of the pedestal. The pedestal is brought into contact with the bottom of the water to hold the pedestal in a constant posture. In the above water work apparatus, the pedestal includes a pedestal fixing screw that projects from the lower end of the pedestal while rotating to protrude into the ground of the water bottom. 2. A pontoon and a pedestal provided on the peripheral edge of the pedestal so that the pedestal can be moved up and down. The pedestal is brought into contact with the bottom of the water to keep the pedestal in a constant posture. In the above-mentioned water work apparatus, a hull weight-added water tank that takes in and stores the surrounding water in the pontoon, and a pedestal for raising the pontoon with the pedestal in a state where water is stored in the hull-weight added water tank. A water surface working device comprising a hull lifting device. 3. A pile material press-fitting machine to be loaded and transferred on the pontoon, which holds a main body and an upper end portion of the pile material press-fitted into the ground, which is provided below the main body. 2. A pile material press-fitting machine comprising: a clamp portion that supports the main body; and a vertical movement operation portion that is vertically movable on the main body and that press-fits new pile material into the ground. Or the above-mentioned water work apparatus. 4. A surface working apparatus according to claim 3, wherein a dummy pile material to be gripped by a clamp portion of the pile material press-fitting machine is fixedly provided on an upper surface portion of the barge. 5. A pile material press-in machine that presses a new pile material into the ground while gripping the upper end portion of the pile material pressed into the ground is transferred on the water by mounting it on a ship. While lowering the pedestal from the pontoon to bring the lower end of the pedestal into contact with the bottom of the water, the pedestal fixing screw built into the pedestal is rotated and protruded from the lower end of the stanchion to project from the bottom of the water bottom. After entering the inside, in a state in which the pile material press-fitting machine is fixed to the pontoon, an initial press-fitting operation of pile material by the pile material press-fitting machine is started, and a water pile press-fitting construction method is characterized in that .