JP2657213B2 - Self-propelled dredging equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled dredging apparatus for hanging a dredging machine from a hull to dredge earth and sand on a water bottom.

[0002]

2. Description of the Related Art Conventionally, when dredging earth and sand at a shallow water bottom, a dredging operation has been performed by using a spud type pump dredger to maneuver so as to continuously dredge a predetermined area. When the water depth is deep, as shown in FIG.
A dredge 4 composed of an underwater sand pump 3 is suspended from a dredge ship 1 by a pump suspension device 2 to dredge the earth and sand 6 on the water bottom 5 and transported to a sediment dump (not shown) by a sand discharge hose 7.

[0003]

However, in such a dredging apparatus that simply suspends and dredges the dredging machine 4,
It was difficult to maneuver so that the determined area was continuously dredged, and dredging was possible only at one point (so-called pothole), and there was a problem that the dredging excavation had irregularities. In addition, there is a problem that work efficiency is poor because time is required for maneuvering a ship.

[0004] It is an object of the present invention to provide a self-propelled dredging apparatus capable of continuously dredging a predetermined area even in dredging of a deep water bottom.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is characterized in that a dredging machine is suspended from a hull by a dredge hanging wire and dredged to sediment at the bottom of the water. In the self-propelled dredging device that discharges the hull, the hull is provided with an opening for hanging and driving the dredging machine, and the main running is performed on the hull on the left and right sides of the opening in the front-rear direction of the hull. A rail is provided, a main traveling vehicle is provided on the main traveling rail so as to be able to travel freely, and a main traversing rail is provided on the main traveling vehicle in a direction orthogonal to the main traveling rail, and A dredge traverse truck is provided so as to be able to traverse freely, and the dredger traverse truck is provided with a dredge winch for feeding and winding up the dredge hanging wire, and a sand discharging hoist for feeding and winding the sand discharging hose. A reel is provided, and auxiliary traverse rails are respectively provided on the bow and stern on the hull in a direction parallel to the main traverse rail, and on each of the auxiliary traverse rails, a synchronous traverse with the dredger traversing truck is provided. A wire pole traversing truck is provided to be able to traverse freely, the wire pole traversing truck has a wire pole that protrudes up and down underwater and a wire pole lifting mechanism that raises and lowers the wire pole in accordance with the depth of the dredge machine. A dredging machine moving wire for moving the dredging machine in accordance with the traveling of the main traveling cart is fed out using the wire pole as a guide, and a dredging machine pulling winch for winding is provided.

[0006]

In this self-propelled dredging device, the dredging machine is suspended from the opening of the hull to the bottom of the water with a dredge suspending wire.

[0007] On the hull, the main traveling vehicle is guided by the main traveling rail in the front-rear direction of the hull over the opening, and is guided by the main traverse rail in the width direction of the hull on the main traveling vehicle. A dredging machine traversing and being traversed, and a dredging machine winch installed on the dredging machine tracing vehicle for feeding and winding a dredge hanging wire,
The dredge machine suspension wire can be arbitrarily and continuously moved in the opening by the traveling of the main traveling vehicle and the traversing of the dredging device traversing vehicle. Can be continuously moved to any position.

In particular, the dredging machine at the bottom of the water is controlled by a dredge moving wire guided by a wire pole projecting into and out of the water from the front and rear of the hull to control the position of the hull in the front and rear directions while pulling the hull in the front and rear directions. Since the position of the hull in the width direction is controlled by traversing the bogie, the continuous movement in the desired direction can be properly controlled even with the suspended dredging machine on the water bottom.

Therefore, even if the water depth is deep, the dredging operation can be performed while the dredging machine 4 is continuously moved within the predetermined area.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS.

The dredger 1 of the self-propelled dredging apparatus of the present embodiment
A rectangular opening 9 is provided at the center of the hull 8 with its longitudinal direction facing the front-rear direction of the hull 8. On the hull 8 on both sides of the opening 9 in the width direction, the hull 8
The main running rail 10 is installed in the front-rear direction. On these main running rails 10, a main running vehicle 11 is provided so as to run freely across the opening 9. The main traveling vehicle 11 is also provided with an opening 12.

On the main traveling vehicle 11, a main traveling rail 1 is provided.
Two main traversing rails 13 are provided in a direction orthogonal to 0. On these main traversing rails 13, a dredging machine traversing carriage 14 is provided so as to be able to traverse freely.

The dredging machine trolley 14 is equipped with a dredging machine winch 16 for feeding out and winding up the dredge hanging wire 15. The center pulley 17 on the dredging machine trolley 14 is connected by the dredging machine hanging wire 15.
The dredge 4 is suspended from the water bottom 5 through the openings 12 and 9 from the position.

The dredging machine 4 of this embodiment comprises an excavator 19 which is driven to rotate by a hydraulic motor 18 and a plurality of submersible sand pumps 3 for sucking up the earth and sand 6 excavated by the excavator 19. ing. The earth and sand 6 sucked up by the underwater sand pump 3 is conveyed through a sand discharge hose 7.

The dredging machine 14 carries a sand discharging hose reel 18 for feeding and winding the sand discharging hose 7.

At the bow and stern of the hull 8, two auxiliary traverse rails 20a and 20b are provided in a direction parallel to the main traverse rail 13, respectively. On these auxiliary traversing rails 20a and 20b, wire pole traversing carts 21a and 21b that traverse in synchronization with the dredger traversing cart 14 are provided so as to freely traverse.

The wire pole traversing carts 21a, 21b
Are provided with wire pole guides 22a and 22b in a vertical direction.
Wire poles 23a and 23b are vertically vertically fitted into b. These wire poles 23
Reference numerals a and 23b protrude underwater so as to be able to move up and down.

Further, the wire pole traversing cart 21
The main parts of the wire pole elevating mechanisms 24a and 24b that elevate and lower the wire poles 23a and 23b in accordance with the depth of the dredge 4 are mounted on a and 21b. The wire pole lifting mechanism 24a, 24b has a tip connected to a lower portion of the wire pole 23a, 23b, and the wire pole lifting wire 25a, 25b suspending the wire pole 23a, 23b, and the wire pole lifting wire 25a. , 25b wire poles 23a, 2
Pulleys 26a and 26b for guiding the portion along 3b,
It is composed of wire pole winches 27a and 27b for feeding and winding wire pole lifting wires 25a and 25b on the wire pole traversing carts 21a and 21b. The dredger 4 is pulled by the dredger moving wires 28a, 28b in the front-rear direction on the water bottom 5 side. These dredge moving wires 28a, 28b
Pulleys 29a, 2 below the wire poles 23a, 23b
It is raised along the wire poles 23a and 23b via 9b. Wire pole trolley 21a, 2
1b, the dredge machine pulling winches 30a, 3 for feeding and winding the dredge machine moving wires 28a, 28b.
0b is mounted.

An operation room 31 is provided on the hull 8. At the four corners on the hull 8, there are maneuvering winches 32a, 32
b, 32c and 32d are provided. These maneuvering winches 32a to 32d use the maneuvering wires 33a, 33b, 3
The feeding and winding of 3c and 33d are performed. An anchor (not shown) is attached to the tip of each of the ship maneuvering wires 33a to 33d so that the mooring of the dredger 1 is performed.

In this self-propelled dredging device, the main traveling vehicle 11
Is moved in the longitudinal direction of the hull 8 and the trolley 14 is traversed in the width direction of the hull 8 so that the dredger 4 can be continuously moved to any position in the opening 9.

At this time, the dredger 4 on the water bottom 5 has the wire poles 23a and 23b protruding into the water before and after the hull 8.
The position of the hull 8 in the front-rear direction is controlled by pulling it from the front-rear direction of the hull 8 with the dredge moving wires 28a, 28b guided by the wire rods.
, The position of the hull 8 in the width direction is controlled, so that the continuous movement of the suspended dredger 4 of the water bottom 5 in the desired direction can be correctly controlled.

Next, the dredging procedure will be described with reference to the trace diagram of the dredging machine 4 shown in FIG.

(A) The dredging area is positioned by the ship maneuvering winches 32a to 32d, and the wire pole traversing carts 21a and 21b are moved along the line a.
1 and the trolley 14 are moved to set the center of the dredger 4 at the position e and prepare for operation.

(B) At the same time that the main traveling vehicle 11 is moved forward of the hull 8, the dredging machine moving wire 28 is driven by the forward dredging machine winch 30a so as to synchronize with the traveling speed.
a and the rear dredge traction winch 30
While the back tension is being applied to b, the dredge machine moving wire 28b is paid out, and the dredge machine 4 is caused to travel forward.

(C) When the dredger 4 reaches the position f,
The main traveling vehicle 11 is stopped, and the dredging machine traversing vehicle 14 is moved to the position of g.

(D) At the same time as the main traveling vehicle 11 is moved to the rear of the hull 8, the dredge moving wire 28b is wound by the dredge retracting winch 30b, and the back tension is applied to the front dredge retracting winch 30a. The dredger moving wire 28a is paid out, and the dredger 4 is moved backward to the position h.

(E) Hereinafter, the same operation is repeated, and when dredging to the position 1 is completed, the ship operating winches 32a to 32d
By the operation d, the dredger 1 is moved to the next dredging area.

The dredging machine 4 may be composed of only the submersible sand pump 3 as shown in FIG.

[0029]

As described above, in the self-propelled dredging apparatus according to the present invention, the main traveling bogie for driving the dredge hanging wire hanging from the hull in the longitudinal direction of the hull, A dredging machine moving wire for moving the dredging machine in the front and rear direction at the bottom with the dredging machine traversing in the width direction of the hull and continuously moving it to any position in the opening, The dredge is moved synchronously in the direction of movement of the suspension wire with the wire-pole traversing vehicle that moves the dredge move wire in the width direction of the hull through the wire pole, so that the dredge can be continuously operated even when the water depth is deep. The dredging can be performed by moving in the required direction, and the maneuvering time is shorter than that of the conventional method, and the work efficiency is improved and economical. Moreover, even if the water depth is deep, the dredging excavation can be finished smoothly.

[Brief description of the drawings]

FIG. 1 is a side view of one embodiment of a self-propelled dredging device according to the present invention.

FIG. 2 is a plan view of the self-propelled dredging device shown in FIG.

FIG. 3 is a view taken in the direction of arrows AA in FIG. 1;

FIG. 4 is a locus diagram showing a dredging locus of a dredging machine by the device of the present embodiment.

FIG. 5 is a side view of a conventional dredging device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dredge 2 Pump hanging apparatus 3 Submersible sand pump 4 Dredge machine 5 Water bottom 6 Sediment 7 Sand discharge hose 8 Hull 9,12 Opening 10 Main running rail 11 Main running vehicle 13 Main traversing rail 14 Dredger traversing car 15 Hanging dredging machine Wire 16 Dredge winch 17 Center pulley 18 Hydraulic motor 19 Excavator 20a, 20b Auxiliary traversing rail 21a, 21b Wire pole traversing carriage 22a, 22b Wire pole guide 23a, 23b Wire pole 24a, 24b Wire pole lifting mechanism 25a, 25b Wire pole Elevating wire 26a, 26b, 29a, 29b Pulley 27a, 27b Wire pole winch 28a, 28b Dredge moving wire 30a, 30b Dredge towing winch 31 Operating room 32a to 32d Ship handling winch 33a to 33 Maneuvering wire

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Takao Ota 2-3-8 Shiba, Minato-ku, Tokyo Rinkai Construction Co., Ltd. (56) References JP-A-62-29631 (JP, A) JP-A-5 -187035 (JP, A)

Claims (1)

(57) [Claims] 1. A self-propelled dredging device in which a dredger is suspended from a hull by a dredge hanging wire and dredged from the bottom of the water, and is discharged by a sand drainage hose. The main traveling rail is provided on the hull on the left and right of the opening in the front-rear direction of the hull, and the main traveling vehicle is provided on the main traveling rail so as to run freely, A main traverse rail is provided on the main trolley in a direction perpendicular to the main traverse rail, a dredge traverse trolley is traversably provided on the main traverse rail, and the dredger traverse trolley is provided with the dredge. A dredge winch for feeding and hoisting the machine hanging wire and a sand discharging hose reel for feeding and winding the sand discharging hose are provided, and the bow and stern on the hull are provided with respect to the main traverse rail. Auxiliary traversing rails are provided in parallel with each other, and on each of the auxiliary traversing rails, a wire pole traversing car that traverses in synchronization with the dredger traversing car is traversably provided, and each of the wire pole traversing cars is underwater. A wire pole that protrudes up and down freely, a wire pole lifting mechanism that raises and lowers the wire pole in accordance with the depth of the dredging machine, and a dredge moving wire that moves the dredging machine according to the travel of the main traveling vehicle. A self-propelled dredging device, which is equipped with a tow winch and a dredging machine that unwinds and winds up using a pole as a guide.