JPH0813466A - Installation device for horizontal drain material in water bottom and installation method - Google Patents

Abstract

PURPOSE:To perfectly eliminate influences of various disturbance factors until a horizontal material reaches the water bottom and reduce equipment on a boat. CONSTITUTION:The front end of laid members 9 dram out of a holding device 10 is held by a grip device 16 and a second lift frame 14 is lowered synchronously with the descent of a first lift frame 7. In this way, the holding device 10, fixing device 12, and grip device 16 provided at respective lower ends of the first and second lift frames 7, 14 approach the water bottom face 4 and the laid members 9 horizontally arranged on the water bottom face 4 are fixed by the fixing device 12 by use of a fixing member vertically positioned. The holding device is horizontally transferred by a traveling support frame 6 through the first lift frame 7 to draw the laid member 9 from the holding device 10 and horizontally arrange them on the water bottom face 4. Horizontal drain members 8 are laid on the water bottom face 4 while the laid members 9 are fixed and at the same time, they are drawn out of the holding device 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground improvement work using a vertical drainage member such as a plastic board or a sand pile in order to remove water from the ground at the bottom of water at the time of land reclamation work. The present invention relates to a laying device and a laying method for laying a horizontal drain material (horizontal drainage member) on the top.

[0002]

2. Description of the Related Art As a conventional ground improvement work for a water bottom, for example, as shown in FIG. 24, a soft ground 30 containing a large amount of water is used.
Form a sand mat 17 laid on the top with a height of about 1 to 1.5 m, that is, with good quality, that is, having rough eyes and excellent water permeability, and then penetrate the sand mat 17 to make a plastic board, sand pile, etc. The vertical drain material (vertical drainage member) 42 is driven vertically and embedded in the soft ground 30.

Embankment 4 is placed on such a sand mat 17.
When 4 etc. are piled up and a large load is applied on the sand mat 17, the water contained in the soft ground 30 passes through the gap formed in the vertical drain member 42 in the vertical direction as shown by the arrow in the figure. When the sand mat 17 rises and reaches the sand mat 17, it moves horizontally through the rough openings of the sand mat 17 and is drained from the side end surface of the sand mat 17 into the surrounding water.

However, the high quality sand used for the sand mat 17 has become difficult to obtain in recent years from the standpoints of prevention of natural destruction and environmental problems.

In order to solve such a problem, for example, "a method for laying a horizontal drain material and a work boat for laying the horizontal drain material" has been proposed in Japanese Patent Laid-Open No. 5-171631.

[0006] In the "Laying method of horizontal drain material and its laying work boat" disclosed in the above publication, the lower end of a guide frame which is installed downward independently of the hull and whose vertical movement can be adjusted. It is characterized in that the section faces the position closest to the bottom of the water, the strip-shaped horizontal drain material is continuously supplied along the guide frame, and the horizontal drain material is laid on the bottom of the water as the hull advances.

This conventional example uses a plate-shaped drain made of plastic or the like as a substitute for the sand mat 17 of the conventional example, which makes it difficult to obtain high quality sand in ground improvement work. In order to solve the above problem, the horizontal drain material is fed through the guide frame that is vertically movable on the hull until the horizontal drain material is fed out from the ship and reaches the bottom of the water as the work ship progresses. The horizontal drain material can be laid on the bottom of the water as desired, by preventing the horizontal drain material from shaking, flowing, or breaking even when subjected to various disturbing factors such as water resistance and ship progress. It is described that the purpose is to provide such "a method for laying a horizontal drain material and a work boat for laying the same".

[0008]

However, the above-mentioned conventional "method for laying horizontal drain material and work boat for laying the same" has been proposed.
In that case, the strip-shaped horizontal drain material is rolled and held by the horizontal drain material supply device on the ship, and is pulled out from the horizontal drain material supply device on the ship at the time of laying to the water bottom along the guide frame. Sent. Since the horizontal drain material sent in this way is sent in a vertical state in which it extends vertically in water until it is sent from the ship to the bottom of the water, the horizontal drain material remains essentially the same as the disturbance factors such as water resistance. It is unavoidable to receive it.

The horizontal drain material in the vertical state is still subjected to the water pressure corresponding to the area in the vertical state, and there is a flow of water like a river or a violent tide in the sea. In this case, the horizontal drain material also swings greatly, and the wall plates are located in front of and behind the lower end of the guide frame, so even if the lower end of the horizontal drain material is restrained, the horizontal drain material will be greatly bowed. ,
The horizontal drain material may not be able to be lowered smoothly. Even if a wire rope is run along, this is not a fundamental solution, and if the horizontal drain material cannot be supported by the wire rope depending on the direction of the flow of water, etc., and the strength of the flow is large. May cause the horizontal drain material to break in the middle.

Further, the water pressure corresponding to the area of the horizontal drain material in the vertical state hinders the progress of the ship, and the hydraulic pressure resistance increases as the vertical length and width of the horizontal drain material increase. Therefore, the laying work requires a larger propulsion force of the ship and consumes extra energy.

Further, since a sand bag filled with sand is used as a fixing member for fixing the horizontal drain member, a large amount of this sand bag must be loaded, and a place for loading the sand bag or carrying the sand bag is required. Take a place on board to place a belt conveyor for attaching to the horizontal drain at.

Further, since the wire rope is attached to one side of the horizontal drain member, a winch formed by winding the wire rope is set at a place for placing the wire rope, and there is a problem that the equipment on board increases and the ship becomes messy. .

[0013] Therefore, the present invention solves the present problem that it is difficult to obtain high quality sand, completely prevents the influence of various disturbance factors until the horizontal drain material reaches the bottom of the water, and at the same time, onboard the ship. It is an object of the present invention to provide a laying apparatus and a laying method for a horizontal drain material on a water floor with less equipment.

[0014]

In order to solve the above-mentioned problems, the apparatus and method for laying a horizontal drain material on the water bottom according to the present invention have the following constitution.

(1) A traveling support frame provided so as to be able to reciprocate in the lengthwise direction of the hull, a first elevating frame which is supported by the traveling support frame so as to be vertically movable, and has a length in the up-down direction, and the first A holding device which is provided at the lower end of the elevating frame and holds a laying member having a horizontal drain member, and a holding device which is arranged at one end side of the traveling length of the traveling support frame and is vertically movable on the hull and has a vertical length. A second elevating frame having the same, a grip device provided at a lower end of the second elevating frame for grasping a tip end of the laying member drawn out from the holding device, and a holding device provided at a lower end of the first elevating frame. The laying portion is provided at a portion adjacent to the grip device side of the device and uses a locking member that vertically penetrates the laying member that is pulled out horizontally on the water bottom surface so as not to turn over later. The laying device of the horizontal drain member and a locking device for locking onto the water bottom.

(2) The grip device grips the tip of the laying member having the horizontal drain member that is drawn out horizontally from the holding device, and the first lifting frame descends from the traveling support frame in synchronism with the first hull frame. 2 The elevating frame descends, whereby the holding device, the locking device, and the grip device provided at the lower end portions of the first elevating frame and the second elevating frame come close to each other on the water bottom surface,
The locking device locks the laying member on the water bottom surface by using a locking member that vertically penetrates the laying member horizontally arranged on the water bottom surface, and the holding device interposes the first elevating frame. And horizontally moving by the traveling support frame and moving away from the grip device, the laying member is pulled out from the holding device in the horizontal direction and placed horizontally on the bottom of the water, and the laying member is locked from the holding device. The method of laying the horizontal drain material is to lay the horizontal drain material on the water bottom while pulling out the laying members in parallel.

(3) The grip device grips the tip of the laying member having the horizontal drain member that is pulled out in the horizontal direction from the holding device, and the first lifting frame descends from the traveling support frame in synchronism with the first hull frame. 2 The elevating frame descends, whereby the holding device, the locking device, and the grip device provided at the lower end portions of the first elevating frame and the second elevating frame come close to each other on the water bottom surface,
The locking device locks the laying member on the water bottom surface by using a locking member that vertically penetrates the laying member horizontally arranged on the water bottom surface, and the grip device fixes the tip end portion of the laying member. The hull is released and raised to the hull side together with the second elevating frame, the hull advances in the direction in which the laying member is pulled out from the holding device that holds the laying member, and the locking device locks the laying member on the bottom surface of the water. Then, a method for laying a horizontal drain material in which the horizontal drain material is laid on the bottom of the water while advancing the hull and locking the laying member in parallel.

(4) A laying device for a horizontal drain material, wherein the laying member in the above configuration (1) is constructed by stacking the horizontal drain material together with a ground reinforcing member having a width wider than the horizontal drain material.

(5) The locking device in the above configuration (1) comprises a hole drilling device for drilling a hole through which the locking member passes through the laying member, and a soil holding the locking member for holding the locking member in the soil. An apparatus for laying horizontal drain material, comprising: an embedding device to be embedded in the base material;

(6) In the above configuration (1), the horizontal drain member is composed of a long plate-shaped core body and a tubular member surrounding the core body, and when the horizontal drain material is laid, the inside of the tubular member is arranged. A device for laying horizontal drain material that is equipped with an air bleeder that bleeds air from the equipment.

[0021]

According to the laying device and the laying method of the horizontal drain material on the water bottom having the above-mentioned configurations (1) and (2), first, the tip portion of the laying member pulled out from the holding device for holding the laying member having the horizontal drain material. Is gripped by the grip device. Then, a first elevating frame having a length in the up-down direction is supported by a traveling support frame provided so as to be capable of traveling in the length direction of the hull, and a first elevating frame having a length in the up-down direction, and is provided so as to be able to move up and down in the hull, And the second elevating frame having the same are lowered synchronously. As a result, the holding device provided at the lower end of each of the first elevating frame and the second elevating frame, the locking device that locks the laying member on the water bottom, and the grip device are lowered together to approach the water bottom. To do.

Then, the holding device moves horizontally along with the traveling support frame via the first elevating frame so as to move away from the grip device, and by this movement, the laying member is pulled out from the holding device and it is placed on the bottom surface of the water. Place it horizontally.

Next, the locking device arranged on the side of the grip device of the holding device uses the locking member that vertically penetrates the horizontally arranged laying member to prevent the laying member from being turned over later. Lock on the bottom of the water.

In this manner, the holding device moves to pull out the laying member and the locking device locks the laying member to the bottom of the water in parallel, whereby the horizontal drain member is placed on the bottom of the water. Can be laid in.

A holding device for holding the laying member is provided at the lower end portion of the first elevating frame, and when the laying is performed, the holding device is provided.
The lifting frame descends and the holding device approaches the bottom of the water,
Since the holding device can supply the laying member to the water bottom from a position close to the water bottom, the laying member can be supplied as in the case of supplying the laying member from the ship to the water bottom as in the conventional example. Verticalization in water cannot occur. Therefore, as described in detail in the above-mentioned "Problems to be solved by the invention", it is possible to completely prevent the horizontal drain material from being affected by various disturbance factors before it comes out of the ship and reaches the bottom of the water. can do.

Further, according to the laying device and the laying method of the horizontal drain material having the above constitutions (1) and (3), the holding device,
After the locking device and the grip device both descend and come close to the bottom surface of the water, the locking device holds the laying member on the bottom surface of the water, with the grip device gripping the tip of the laying member that is pulled out from the holding device. After locking, the grip device releases the tip of the laying member and rises to the hull side by the second elevating frame, and instead of the holding device moving as in the laying method of (2) above, the hull advances. Pull the laying member horizontally from the holding device and then the locking device locks the laying member on the bottom of the water.

In this way, the horizontal drain member is placed on the bottom surface of the water by moving the hull forward and pulling out the laying member in parallel with the operation of the locking device to lock the laying member on the bottom of the water. Can be laid in.

Further, according to the laying device for the horizontal drain material having the above-mentioned constitutions (1) and (4), the laying member formed by stacking the laying member together with the ground reinforcing member is laid on the bottom of the water. In order to improve the strength and flatness of the surface by laying a ground reinforcing member on the surface of the soft ground,
Preventing the laying member from sinking into the ground or creating a large gap with the ground, the horizontal drain material reliably receives the moisture sent from the vertical drain material embedded in the ground in advance to obtain a predetermined amount. Can be transported to a location and drained.

Further, according to the horizontal drain material laying apparatus having the above constitutions (1) and (5), the locking device is a hole punching device,
An embedding device and a locking device mounting device, wherein the boring device first makes a hole in the laying member through which the locking member passes, and then the embedding device holds the locking member and passes through the hole. Locking the laying member by the locking member by embedding it in the soil under the bottom of the water and finally attaching the locking tool to the upper end portion of the locking member facing upward from the laying member by the locking tool attaching device. Take action.

Further, according to the apparatus for laying a horizontal drain material at the water bottom having the above-mentioned constitutions (1) and (6), the air bleeding device bleeds air in the tubular inside when laying the horizontal drain material, so that the horizontal drain material Water can smoothly enter the inside of the cylinder and the function of the horizontal drain member can be smoothly exhibited.

[0031]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 10 are views showing a first embodiment of a laying apparatus and a laying method for a horizontal drain material on a water bottom according to the present invention.

FIG. 1 is a diagram showing a dedicated ship as a device for laying a horizontal drain material on a water bottom according to the present invention. In the figure, reference numeral 1 is the hull of the special ship, and the hull 1 is a wire 2 connected to a chain of anchors (not shown).
It is anchored so as to maintain a fixed position just above the water bottom surface 4 to be laid.

The hull 1 is provided with a traveling support frame 6 which is capable of reciprocating along a rail 5 which runs in the lengthwise direction (horizontal direction in the drawing). On the traveling support frame 6,
A first elevating frame 7 having a length in the up-down direction is supported so as to be able to move up and down. A holding device 10 that moves up and down together is provided at the lower end of the first elevating frame 7, and a laying member 9 having a horizontal drain member is rolled and held by the holding device 10.

The hull 1 on one end side (right side in FIG. 1) of the rail 5
At the position of, a second elevating frame 14 having a length in the up-down direction is provided to be able to ascend and descend on the hull 1. A grip device 16 that moves up and down together with the lower end of the second elevating frame 14
The grip device 16 is provided with a holding device 1.
The tip of the laying member 9 pulled out from 0 is gripped.

It is provided at the lower end of the first elevating frame 7,
The locking device 12 is arranged in the adjacent portion of the holding device 10 on the grip device 16 side. The locking device 12 locks the laying member 9 on the water bottom surface 4 so that the laying member 9 pulled out horizontally on the water bottom surface 4 does not turn over. The locking device 12 is provided with a drilling device for drilling a hole in the laying member 9 as will be described later, a device for embedding the locking member, and a device for mounting a locking tool.

An air vent device 27 is provided on the hull 1, and the air vent device 27 is connected to the holding device 10 via a pipe 27a. The laying member 9 rolled and held by the holding device 10 has a horizontal drain member as described above, and this horizontal drain member has a crushed tubular filter member on the outside as described later. ing. Such a horizontal drain member is designed so that the air inside it can be evacuated by the air evacuating device 27 from the end portion on the center side of the roll winding through the pipe 27a.

As the strip-shaped horizontal drain material of the laying member 9, for example, "Public drain" (trade name) manufactured by Asahi Engineering Co., Ltd. is used. As shown by reference numeral 8 in FIG. 2, this horizontal drain member has a core 8a having an uneven shape formed by alternately drawing on both front and back sides of a plastic plate and a crushed cylindrical filter 8b.
Has a structure that wraps along its length.
Then, on both sides in the width direction of the filter 8b, a sewn portion 8c that is welded and sewn to a ground reinforcing member 11 to be described later is provided correspondingly.

Hard vinyl chloride is used as the material of the core body 8a, and polyester long-fiber non-woven fabric is used as the material of the filter 8b, but other materials may be used as long as they have a function as a horizontal drain material. .

As shown in FIG. 3, such a horizontal drain member 8 has a band-like appearance and is spaced in the width direction of a net-shaped ground reinforcing member 11 having a width several times as wide as the width. A plurality of (five in the figure) are arranged in parallel with each other, and the laying member 9 is configured in a state of being welded and sewn to the ground reinforcing member 11 along the length direction of the ground reinforcing member 11, The laying member 9 is pulled out from the holding device 10 with the horizontal drain member 8 facing down.

As the ground reinforcing member 11, for example,
"Netron Sheet" (trade name) manufactured by Mitsui Kasei Co., Ltd., "Yukaron Net" (trade name) manufactured by Mitsubishi Petrochemical Co., Ltd., "Tensor" (trade name) manufactured by Mitsubishi Petrochemical Co., Ltd. They are used, and they are all formed in a net shape having a mesh but no knot.

High density polyethylene is mainly used as the material of the "Netron", polyethylene is used as the material of the "Yukaron net", and high density polyethylene and polypropylene are used as the material of the "tensor". ing.

A locking member which is used by the locking device 12 to lock the laying member 9 on the water bottom surface 4 and which penetrates the laying member 9 in the vertical direction is, for example, substantially flat as shown by reference numeral 26 in FIG. A rectangular plate member 34 in which the ends of the long plate member 22 are integrally connected is used. Such locking members 26 are made of hard plastic, and they are housed in a cartridge and the cartridge is mounted in the locking device 12.

In order for the locking member 26 to penetrate the laying member 9 in the vertical direction, the punching device of the locking device 12 first cuts only the ground reinforcing member 11 of the laying member 9, and A hole is formed so that the square plate member 34 of the locking member 26 can pass vertically.

As the punching device, for example, reference numeral 1 in FIG.
A device as shown at 3 can be used. This punching device 13 has an outer member 13a having a large number of elongated projections 13c arranged side by side in the circumferential direction at the tip, and an outer member 13a arranged coaxially inside the outer member 13a and having a large number of teeth at the tip in the circumferential direction. It is provided with a rotating inner member 13b provided side by side, and the outer member 13a and the inner member 13b can freely rotate and move vertically.

Such a punching device 13 has the outer member 1
3a is moved down first so that the protrusion 13c is attached to the ground reinforcing member 11
It is inserted into the eye and then twisted a little to give a force to prevent the ground reinforcing member 11 from sinking to the water bottom surface 4 side. Then, the inner member 13b is rotated and lowered to allow the teeth on the tip to be ground.
Can be cut into a circle to make a hole through which the square plate member 34 of the locking member 26 can pass.

Through the hole, the locking member 26 taken out from the cartridge and held by the embedding device 50 as shown in FIG. 6 descends and is embedded in the soil under the water bottom surface 4. Then, as shown in FIG. 7, when only the embedding device 50 is raised, the square plate member 34 of the locking member 26 is left in the soil together with the long plate member 22 due to the resistance of the soil.

After the embedding device 50 is completely separated from the long plate material 22, the upper end of the long plate material 22 is left slightly above the ground reinforcing member 11 of the laying member 9, and the long plate material 22 is left. It is possible to prevent the laying member 9 from being turned over later by attaching the locking tool 15 to the upper end portion of 22 as shown in FIG.

The locking device 15 is made of plastic and has two flexible pressing parts 15a, 15 through a hinge part 15c having flexibility.
b is connected, and a convex portion 15d is provided inside the pressing portion 15a.
And a recess 15e is formed inside the pressing portion 15b. Further, the engaging recess 1 is formed at the tip of the pressing portion 15a.
5f is formed, and the engaging projection 1 is formed at the tip of the pressing portion 15b.
5 g are formed. A circle S in FIG. 8 indicates a hole made in the ground reinforcing member 11 of the laying member 9 by the hole making device 13.

When the engaging portion 15a is closed so that the pressing portion 15a and the pressing portion 15b come close to each other, the engaging convex portion 15g is engaged with the engaging concave portion 15f and is in a closed state. By holding and holding the convex portion 15d in the concave portion 15e, the long plate member 22 can be bent while being sandwiched, and the locking tool 15 can be prevented from easily coming off from the long plate member 22.

The locking tool 15 is mounted by a locking tool mounting device (not shown) provided in the locking device 12. The punching device 13, the embedding device 50, the locking device attaching device, and the grip device 16 of the locking device 12 described above.
Can be operated remotely from the ship's operation.

Next, the operation of the first embodiment will be described. First, the laying member 9 is pulled out from the holding device 10, and the portion of the ground reinforcing member 11 at the tip thereof is gripped by the grip device 16. Next, the first lifting frame 7 supported by the traveling support frame 6 is lowered into the water, and in synchronization with this, the hull 1
Then, the second lifting frame 14 is also lowered into the water. As a result, the holding device 10 and the locking device 12 provided at the lower end of the first elevating frame 7 and the grip device 16 provided at the lower end of the second elevating frame 14 descend synchronously,
Both of them descend to a position close to the water bottom surface 4 and stop (see FIG. 9).

At this time, since the laying member 9 pulled out from the holding device 10 is previously arranged below the locking device 12, the locking device 12 is laid by using the locking member 26 that penetrates the laying member 9. The member 9 is locked on the water bottom surface 4. As described above, the locking operation at this time is performed by a series of operations of the locking tool attaching device using the punching device 13, the embedding device 50, and the locking tool 15.

A ground reinforcement member 11 is provided in the width direction of the laying member 9.
The locking positions of the locking device 12 are planned at several places in the vehicle, and when the locking operation at all the planned positions is completed, the traveling support frame 6 is slightly moved to the left in FIG. The holding device 10 and the locking device 12 slightly move in the same direction via the first elevating frame 7, and the laying member 9 is slightly pulled out from the holding device 10.

Here again, the locking device 12 uses the locking member 26 to lock the laying member 9 on the bottom surface 4 at all predetermined positions in its width direction. Then, the traveling support frame 6 is slightly moved, and the locking device 12 locks the laying member 9 to the water bottom surface 4 by using the locking member 26. In this way, the laying member 9 is pulled out by the locking of the laying member 9 by the locking device 12 and the movement of the holding device 10 in parallel, as shown in FIG.
The horizontal drain material 8 can be laid on the water bottom surface 4.

When the laying member 9 is laid on the water bottom surface 4 in this way, water infiltrates into the inside of the horizontal drain member 8 enclosed by the cylindrical filter 8b from the tip of the horizontal drain member 8. As a result, the water from the vertical drain material can be transported to another place through the water inside this later. However, if air remains inside the horizontal drain member 8, water cannot enter the inside, and the above-described operation cannot be performed later. Therefore, at the time of laying, the air in the horizontal drain member 8 is sucked by the air bleeding device 27 to make the inside of the horizontal drain member 8 a negative pressure, thereby facilitating the infiltration of water.

When the installation of the installation member 9 of a predetermined length is completed with the hull 1 anchored, the grip device 16
Releases the tip of the laying member 9 to release the second elevating frame 14
Ascends to the hull 1 side. Then, the anchor stop is released to move the hull 1 forward by the predetermined length,
At this time, at the same time, the traveling support frame 6 is moved backward,
Unnecessary force is applied to the laying member 9 to pull out the locking member 26, or to cut the laying member 9, or to lay the laying member 9
To prevent excessive slack.

After the movement of the hull 1 is completed, the hull 1 is anchored again with the traveling support frame 6 again in the position closest to the second elevating frame 14, and the above laying operation is repeated again. Thus, the laying operation can be continuously performed one after another.

FIG. 11 is a view showing a second embodiment of the apparatus and method for laying a horizontal drain material on the water bottom according to the present invention. In this second embodiment, the holding device 10 and the locking device 1
2 and the grip device 16 descends to a position close to the bottom surface 4, the locking device 12 locks the laying member 9 on the bottom surface 4 to the bottom surface 4, and the grip device 16 causes the tip of the laying member 9 to move. The number of locking members 2 is such that there is no hindrance even if the user does not grip the parts.
When the laying member 9 is locked on the water bottom surface 4 by using 6,
As shown in FIG. 11, the grip device 16 is raised to the hull 1 side via the second elevating frame 14.

Next, the hull 1 is slowly advanced by its propulsive force to pull out the laying member 9 from the holding device 10, and it is locked by the locking device 12 at each position in the width direction. In this way, as shown in FIG. 11, by advancing the hull 1 and locking the laying member 9 in parallel one after another, the horizontal drain member 8 of the laying member 9 is moved to the bottom surface 4 of the water.
Can be laid on top. In this case, as in the first embodiment, anchoring and release thereof, movement of the traveling support frame 6 and the like can be omitted, and the laying work can be performed more efficiently.

FIG. 12 is a view showing another example of a punching device different from the punching device 13. In the punching device 100 shown in the figure, reference numeral 102 is a housing. The housing 102 surrounds a first housing portion 102a having a cylindrical chamber and a substantially lower half portion of the first housing portion 102a. , The first housing portion 102a
Second housing part 102 having a chamber that is isolated from the inner cylindrical chamber and is bent in the shape of a horn and opens horizontally
b.

A rotating cutting tool 104 having a cutting grindstone 104a at its tip is provided in the first housing portion 102a.
Is stored. A lower end portion of the second housing portion 102b is arranged so as to face the ground reinforcing member 11 of the laying member 9, and an axial flow pump 106 is provided at an opening portion of the upper end portion that opens in the horizontal direction.

In such a punching device 100, the lower end portions of the first housing portion 102a and the second housing portion 102b located on the same plane are arranged at predetermined positions of the ground reinforcing member 11 of the laying member 9. First, the axial flow pump 106
To discharge the water in the second housing portion 102b, and the negative pressure in the second housing portion 102b at this time causes the ground reinforcing member 11 to be adsorbed to the lower end portion of the first housing portion 102a. Next, the rotating cutting tool 104 is lowered and the ground reinforcing member 11 is cut into a circle by the cutting grindstone 104a to make a hole 108. At this time, the cutting wheel 10
The downward processing pressure by 4a is supported by the negative pressure.

FIG. 13 is a view showing an embedding device 110 of another example different from the embedding device 50. In the embedding device 110 shown in the figure, reference numerals 112 and 113 are drive rollers, and the long plate member 22 is guided by the guide portion 1 by rotating the drive rollers 112 and 113 in the direction of the arrow in the figure.
16 and 117, the locking member 26 can be lowered downward in the figure, and the locking member 26 can be embedded in the soil under the water bottom surface 4.

FIG. 14 is a view showing an embedding device 120 of another example different from the embedding device 50 and the embedding device 110. In the embedding device 120 shown in the figure, a vertically movable frame portion 120a is provided at its lower end with a gripping / releasing gripping portion 120b, and this gripping portion 120b is a long member of the locking member 26. By holding the lower end portion of the plate member 22 and lowering the frame portion 120a, the locking member 26 can be embedded in the soil under the water bottom surface 4.

FIG. 15 is a view showing a locking member 24 of another example different from the locking member 26. This locking member 24 is formed by integrally connecting the lower end portion of the rod member 20 to a substantially flat square plate member 34. It is connected to. Like the locking member 26, the locking member 24 can be held by an embedding device such as the embedding device 50 and embedded in the soil under the water bottom surface 4.

FIG. 16 is also a view showing locking members 28 and 29 of another example different from the locking members 24 and 26.
16A shows a plate member 34a that is slightly bent in advance and is provided at the lower end portion of the rod member 20. FIG.
(B) shows the long plate member 22 provided with a similar plate member 34a that is slightly bent in advance at the lower end portion thereof. By providing the locking members 28 and 29 with such a plate member 34a that has been bent in advance, the locking members 28 and 29 can be more smoothly embedded in the soil under the water bottom surface 4.

FIG. 17 is also a view showing a locking member 32 of another example different from the locking members 24, 26, etc., which is a balloon type which expands when the lower end of the pipe member 21 is filled with fluid. The expansion member 36 is provided. That is, FIG. 17A shows a state in which the expansion member 36 is contracted before the locking member 32 is embedded in the soil under the water bottom surface 4.
7 (b) shows a state in which the expansion member 36 is expanded after the locking member 32 is embedded in the soil under the water bottom surface 4. Even with this type of locking member 32, the same effects as those of the locking members 24, 26 and the like can be obtained.

FIG. 18 is also a view showing another example of the locking member 38 different from the locking members 24, 26, etc., in which a flexible locking tongue piece 43 is housed in the cartridge 40 in advance. This is the one used. That is, FIG.
18A shows a state in which the locking tongue 43 is housed in the cartridge 40 before the locking member 38 is embedded in the soil under the water bottom surface 4, and FIG. Stop member 38
After being embedded in the soil under the water bottom surface 4, the upper end portion of the locking tongue piece 43 is pressed vertically downward to project the lower end portion in the horizontal direction. Even with this type of locking member 38, the same effect as that of the locking members 24, 26 and the like can be obtained.

FIG. 19 is a view showing a locking member 46 of another example different from the locking members 24, 26, etc., and a pressing member 58 is previously attached to the upper end portion of the rod member 20 of the locking member 24. It is a thing. By attaching the pressing member 58 to the upper end portion of the rod member 20 in this manner, after the locking member 46 is embedded in the soil under the water bottom surface 4, a locking device such as the locking device 15 for preventing the curling up. Since it is not necessary to mount it, the number of working steps can be reduced accordingly.

FIG. 20 is a view showing a locking member 70 of another example different from the locking member 46 and the like, which is a rectangular parallelepiped weight 7.
A hook member 76 having a hook shape is provided on the side of 2. According to such a locking member 70, the tip end of the hook member 76 having a hook shape is locked through the ground reinforcing member 11 of the laying member 9 and the weight of the weight 72 holds the laying member 9 on the water bottom surface 4. It can be locked on the top and the laying member 9 can be prevented from turning over.

FIG. 21 is a view showing a locking member 60 of another example different from the locking member 46 and the like, and a holding member 64 is previously attached to the upper end portion of a relatively thick and long steel rod member 62. It is a thing. Such a bar member 62 of the locking member 60
Is heavy, the square plate member 34 of the locking member 46 is
It does not come off easily without attaching such a member.

FIG. 22 is a view showing an example of another locking tool different from the locking tool 15. That is, the locking members 24, 26
22 (a), the locking pin 1 is attached to the upper end of the rod member 20 facing the laying member 9 after being embedded in the soil under the bottom surface 4 of water.
22B shows the long plate 2
By attaching the locking clip 19 to the upper end portion of 2, the laying member 9 is prevented from turning over later.

FIG. 23 also shows the lock 15 and the lock pin 18,
FIG. 23 is a view showing an example of another locking tool different from the locking clip 19, and FIG. 23 (a) shows the locking members 26, 29 etc. on the water bottom surface 4.
After being embedded in the soil below, the locking ring 52 is attached to the upper end of the long plate member 22 facing the laying member 9 to prevent the laying member 9 from turning over.
In FIG. 3 (b), the doughnut-shaped clip 54 is attached to the upper end of the long plate member 22 facing the laying member 9 so that the laying member 9 does not turn over.

In the above embodiment, the holding device 10
Although the laying member 9 is rolled in the above description, it may be folded and stored instead of being rolled, and any other storage method may be used as long as it can be contracted and stored.

Further, in the above embodiment, the air venting device 27 is provided on the ship, but the air venting device 27 may be arranged near the holding device 10 so as to be lowered into the water.

[0076]

As described above, according to the present invention, the horizontal drain material is moved to the bottom of the water by performing the operation of pulling out the laying member having the horizontal drain material and the operation of locking it to the water bottom. Can be laid in. Therefore, it is possible to solve the current problem that it is difficult to obtain good quality sand. When the place where the horizontal drain material is laid is used as a waste disposal site, the amount of waste disposal increases by the volume of sand used in the conventional sand mat.

Further, a holding device for holding the laying member is provided at the lower end of the first elevating frame, and the first elevating frame is lowered during installation to bring the holding device close to the water bottom surface. Since the holding device can supply the laying member to the water bottom surface from a close position, it is unlikely that the laying member becomes vertical in water as when the laying member is supplied from the ship to the water bottom surface. Therefore, as described in detail in the above-mentioned "Problems to be solved by the invention", it is possible to completely prevent the horizontal drain material from being affected by various disturbance factors before it comes out of the ship and reaches the bottom of the water. can do.

Further, according to the present invention, the locking member is used to lock the horizontal drain member to the bottom of the water to prevent the horizontal drain member from being flipped up, and the locking operation is performed in the vicinity of the bottom of the water. Will be stored in the embedding device of the locking device in the vicinity of the bottom of the water, and the equipment on board can be reduced.

Further, when the horizontal drain material is laid, the air bleeding device removes the air inside the tubular drain material, so that water can smoothly enter the tubular interior of the horizontal drain material and the function of the horizontal drain material can be smoothly exhibited. Can be made.

Further, the holding device 10 and the locking device 1
2. Since the grip device 16 is provided so as to be able to move up and down, it can be pulled up from the water when not in use, so that maintenance (repair) of them can be easily performed, and when the hull 1 moves, they can resist water. Can be prevented.

[Brief description of drawings]

FIG. 1 is a side view of a dedicated ship showing a first embodiment of an apparatus for laying a horizontal drain material on a water bottom according to the present invention.

FIG. 2 is a cross-sectional view showing a horizontal drain member 8 cut in the width direction.

FIG. 3 is a bottom view of a laying member 9 in which a plurality of strip-shaped horizontal drain members 8 are sewn to a ground reinforcing member 11.

FIG. 4 is a perspective view showing a locking member for locking the horizontal drain member 8 on the water bottom surface 4.

5 is a schematic perspective view of a boring device 13 for boring a ground reinforcing member 11 of a laying member 9. FIG.

FIG. 6 is a cross-sectional view showing the embedding device 50 in a state where the locking member 26 is being embedded in the soil under the water bottom surface 4.

FIG. 7 is a cross-sectional view showing a state where the embedding device 50 moves up after the locking member 26 is embedded in the soil under the water bottom surface 4.

FIG. 8 shows the turning up of the horizontal drain member 8 provided on the upper end of the long plate member 22 above the ground reinforcing member 11 of the locking member 26 after the locking member 26 is embedded in the soil under the water bottom surface 4. It is a top view which shows the locking tool 15 which prevents.

9 is a side view showing the operation of the special ship shown in FIG. 1. FIG.

10 is a side view showing the subsequent operation of the special ship shown in FIG. 9. FIG.

FIG. 11 is a side view of the construction of a dedicated ship showing a second embodiment of a laying apparatus and a laying method for a horizontal drain material on a water bottom according to the present invention.

FIG. 12 is a schematic cross-sectional configuration diagram of a punching device 100 according to another example.

FIG. 13 is a schematic cross-sectional configuration diagram of a locking member embedding device 110 according to another example.

FIG. 14 is a schematic cross-sectional configuration diagram of a locking member embedding device 120 according to another example.

FIG. 15 is a schematic perspective view showing a locking member 24 of another example different from the locking member 26.

FIG. 16 is a view showing a locking member of another example different from the locking members 24 and 26, and FIG. 16 (a) is a rod member 20.
It is a figure which shows the locking member 28 which used, and FIG.16 (b) is a figure which shows the locking member 29 which used the elongate board material 22. FIG.

FIG. 17 is a view showing a locking member 32 of another example different from the locking members 24, 26 and the like, and FIG. 17 (a) is a locking state before being embedded in the soil under the water bottom surface 4. FIG. 17B is a diagram showing the member 32, and FIG. 17B is a diagram showing the locking member 32 in a state where the expansion member 36 is inflated after being embedded in the soil under the water bottom surface 4.

FIG. 18 is a view showing a locking member 38 of another example different from the locking members 24, 26, etc., and FIG. 18 (a) is a locking state before being embedded in the soil under the water bottom surface 4. It is a figure which shows the member 38, and FIG.18 (b) is a figure which shows the locking member 38 in the state after embedding in the soil under the water bottom surface 4. As shown in FIG.

FIG. 19 is a view showing a locking member of another example different from the locking members 24, 26, etc., and a locking member 46 in which a pressing member 58 extending in the horizontal direction is attached to the upper end portion of the rod member 20.
FIG.

FIG. 20 is a view showing a locking member of another example different from the locking members 24, 26 and the like, showing a locking member 70 in which a hook-like member 76 is provided on the side of the weight 72. Is.

FIG. 21 is a view showing a locking member of another example different from the locking members 24, 26 and the like, in which a holding member 64 is attached to an upper end portion of a relatively thick and long steel bar member 62. It is a figure which shows the stop member 60.

FIG. 22 is a view showing a locking tool of another example different from the locking tool 15, and FIG. 22 (a) shows a locking pin 18 provided at the upper end portion of the rod member 20 of the locking member 24. 22B is a perspective view showing the locking clip 19 provided on the upper end of the long plate member 22 of the locking member 26. FIG.

FIG. 23 is a view showing a locking tool of another example different from the above locking tool 15 etc., and FIG. 23 (a) shows that locking members 26, 29 etc. are embedded in the soil under the water bottom surface 4. After that, the locking ring 52 attached to the upper end of the long plate member 22 facing the laying member 9
23B is a diagram showing a donut-shaped clip 54 attached to the upper end of the long plate member 22. FIG.

FIG. 24 is a schematic side sectional view for explaining a conventional ground improvement work.

[Explanation of symbols]

1 Hull 2 Wire 4 Water Bottom 5 Rail 6 Travel Support Frame 7 First Lifting Frame 8 Horizontal Drain Material 8a Core 8b Filter 9 Laying Member 10 Holding Device 11 Ground Reinforcing Member 12 Locking Device 13 Drilling Device 14 Second Lifting Frame 15 Locking Tool 16 Grip Device 18 Locking Pin 19 Locking Clip 20 Rod Material 22,66 Long Plate Material 24, 26, 28, 29, 32, 38, 46, 60, 7
0 Locking member 27 Air venting device 27a Piping 34 Square plate material 34a Plate material 36 Expansion member 40 Cartridge 43 Locking tongue 50 Holding member 52 Locking ring 54 Donut type clip 58, 64 Pressing member 62 Bar member 72 Weights 76 Hooking member

Claims (6)

[Claims] 1. A traveling support frame provided so as to be capable of reciprocating in the longitudinal direction of a hull, a first elevating frame which is vertically supported by the traveling support frame and has a length in the up-down direction, and the first elevating and lowering frame. A holding device which is provided at a lower end of the frame and holds a laying member having a horizontal drain member, and a holding device which is arranged at one end side of the traveling length of the traveling support frame and is vertically movable to a hull and has a length in a vertical direction. A second elevating frame, a grip device provided at a lower end of the second elevating frame for gripping a tip end of the laying member pulled out from the holding device, and a holding device provided at a lower end of the first elevating frame. The laying member is provided at an adjacent portion on the grip device side and is provided with a locking member that vertically penetrates the laying member that is drawn out horizontally on the water bottom surface so as not to turn over later. A locking device for locking onto water bottom, laying apparatus of the horizontal drain material in the sea bed, characterized in that it comprises a. 2. The grip device grips the tip of a laying member having a horizontal drain member that is pulled out horizontally from the holding device, and the second lifting frame moves downward from the hull in synchronization with the lowering of the first elevating frame from the traveling support frame. The elevating frame descends, so that the holding device, the locking device, and the grip device provided at the lower end portions of the first elevating frame and the second elevating frame respectively come close to the bottom surface of the water, and the bottom surface of the water. The locking device locks the laying member on the water bottom surface by using a locking member that vertically penetrates the laying member horizontally arranged above, and the holding device performs the traveling through the first elevating frame. While moving in the horizontal direction by the support frame and moving away from the grip device, the laying member is pulled out in the horizontal direction from the holding device and placed horizontally on the bottom surface of the water. Laying method of horizontal drain member horizontal drain material in the sea bed, characterized in that going laid on a water-bottom while the drawer laying member in parallel from the holding device and. 3. The grip device grips the tip of a laying member having a horizontal drain member that is pulled out horizontally from the holding device, and the first lifting frame descends from the traveling support frame in synchronism with the second hull. The elevating frame descends, so that the holding device, the locking device, and the grip device provided at the lower ends of the first elevating frame and the second elevating frame come close to the bottom surface of the water, The locking device locks the laying member on the bottom surface of the water using a locking member that vertically penetrates the laying member arranged horizontally above, and the grip device releases the tip of the laying member. The hull moves up to the hull side together with the second elevating frame, the hull advances in a direction in which the laying member is pulled out from the holding device that holds the laying member, and the locking device locks the laying member on the water bottom. A method for laying a horizontal drain material on the bottom of the water, wherein the horizontal drain material is laid on the bottom of the water while advancing the hull and locking the laying member in parallel. 4. The horizontal drain material laying device according to claim 1, wherein the laying member is formed by stacking the horizontal drain material together with a ground reinforcing member having a width wider than the horizontal drain material. 5. The locking device includes a hole drilling device for drilling a hole through which the locking member passes through the laying member, and an embedding device that holds the locking member and embeds it in the soil under the water bottom. 2. A laying device for a horizontal drain material on a bottom of a water according to claim 1, further comprising: a fastener attaching device that attaches a fastener to an upper end portion of the engaging member so that the laying member does not turn over. 6. The horizontal drain member is composed of a long, substantially plate-shaped core body and a tubular member surrounding the core body, and an air venting device for venting air from the inside of the tubular member when laying the core body. The apparatus for laying a horizontal drain material on a water bottom according to claim 1, wherein the apparatus is provided.