JPS6050930B2 - Rubble leveling method and rubble leveling boat - Google Patents

Description

[Detailed Description of the Invention] When building a rubble mount underwater, the present invention mechanically and efficiently dumps stones and levels the thrown rubble to uniformly build a rubble mount of a predetermined height. The present invention relates to a rubble leveling method and a rubble leveling boat.

Generally, when installing a structure such as a caisson underwater, stones are dropped into rubble and leveled to form a rubble mount that will serve as the foundation. Stones were dropped from shipping vessels or cutting vessels, and the leveling of the thrown rubble relied on manual labor, such as by divers underwater, but in recent years, large-capacity rubble mounts have been built at great depths. The conventional work of leveling rubble, which relies on manual labor, is affected by weather and sea conditions, and the work efficiency is significantly reduced. Many rubble leveling vessels equipped with equipment for this purpose have been proposed.

However, in such rubble leveling ships, the rubble mounts built by dropping stones may not be formed densely, or the leveling surface may become uneven due to the shaking of the ship due to waves, and the leveling surface may not be kept at a certain height. However, none of them have reached the stage of practical use, as they have drawbacks such as the inability to build uniformly.

The present invention solves these drawbacks, and when constructing a ripple mount underwater, it mechanically dumps stones and levels the rubble efficiently, builds the ripple mount densely, and maintains a certain level of stability. To provide a method for leveling rubble stones that can be quickly and accurately leveled at different heights, and a rubble leveling boat used to carry out the method.

More specifically, the present invention installs a leveling surface position setting plate equipped with a vibrator on the side of the lower end of a vertically movable chute through which stones are dropped from the hull of a rubble leveling boat, thereby positioning the leveling surface. Place the setting plate at the top of the rubble mount to be built to a predetermined height, and place the chute in a position where stones can be dropped from the opening at the bottom of the chute to the side of the newly installed rubble mount. By applying vibration to the surface position setting plate using a vibrator, the traction force required to level the rubble thrown from the chute can be reduced. The present invention also relates to a method for leveling rubble, which is characterized in that a rubble mount is built densely by vibrations applied to thrown rubble, and to a rubble leveling boat used to carry out the method. Hereinafter, the method for leveling rubble according to the present invention will be described with reference to the drawings. I will explain the rubble leveling boat in detail. The drawing shows one of the rubble leveling boat according to the present invention.
This shows an example, and FIG. 1 is a side view showing the working state;
FIG. 2 is a plan view of the same.

In the drawing, 1 is the hull of a box ship, 2 is a trunnion supported at the bow of the hull 1, and 3 is a main body whose upper part is attached to the trunnion 2 and is connected to the hull 1 by a spring so as to be movable left and right. A chute that protrudes diagonally into the water from the bow and is movable up and down and left and right around trunnion 2. 4 is a hopper installed above the upper end of chute 3, and is used to store stone carried from the cutting ship. is fed into a hopper 4 by a belt conveyor or the like, passes through the inside of a chute 3, and is dropped into the water.

5 is a leveling surface position setting plate attached to the side of the lower end of the chute 3 protruding in the opposite direction to the hull 1 and used to set the height of the leveling surface of the rubble thrown from the chute 3; 6 is a leveling surface position setting plate; A vibrator is installed on the surface position setting plate 5, 7 is a winch installed on the hull 1, and 8 is connected to the winch 7 at one end and the vibrator 6 at the other end. When the winch 7 is operated, the chute 3, leveling surface position setting plate 5, and vibrator 6 are raised and lowered up and down around the trunnion 2 via the wire lobe 8, and the height of the rubble leveling surface is adjusted. It has a structure that allows you to set.

Reference numeral 9 denotes a swing winch in which one end of a wire lobe 10 is connected to an anchor 13, and the other end of the wire lobe 10 is connected to the swing winch. be moved to

11 is a rubble mount formed by rubble thrown into the water; 12 is a cockpit and a worker's living room provided in the hull 1; The rubble leveling according to the present invention (7 ships have a leveling surface position setting in which the vibrator 6 is installed on the side of the lower end of the chute 3, preferably on the side opposite to the hull 1 of the lower end of the chute 3. Even if the board 5 is placed at the top surface position of the rubble mount 11, the rubble mount 11 is attached in the opposite direction to the hull 1 with a weight that will not collapse, and the chute 3 can freely move up and down with respect to the hull 1 around the trunnion 2. and is connected to the hull 1 via a spring so as to be movable left and right, and has a structure in which the vibration of the hull 1 does not affect the leveling surface position setting plate 5 on which the chute 3 and the vibrator 6 are installed. The method of the present invention, in which stones are dropped by such a rubble leveling boat and the thrown rubble is leveled mechanically and efficiently will be described below.

First, the leveling surface position setting plate 5 attached to the lower end side of the chute 3 connected to the hull 1 of a box ship so as to be movable up and down about a trunnion 2 and to be movable left and right via a spring is attached to the winch. Activate 7 and wire robe 8
The lower surface of the leveling surface position setting plate 5 is placed at the previously set top surface position of the new rubble mount 11 to be installed, and the chute 3 is moved up and down from the lower end opening of the chute 3 to the rubble mount. 11 is placed in a position where the stones to be constructed can be dropped. The leveling position setting plate 5 disposed at the top surface of the newly installed rubble mount 11 is connected to the chute 3 so that it can move up and down around the trunnion 2 and can move left and right via a spring, so that it can be attached to the hull. It is set at a constant height without being directly affected by the fluctuations of the chute 3, and becomes the basic planting tree when constructing a new rubble mount 11 using the rubble dropped from the chute 3, and the top surface of the newly constructed rubble mount 11. If there is an existing rubble mount 11, it can be determined by placing the leveling position setting plate 5 on it. It is possible to build. After arranging the leveling surface position setting plate 5 in this way, the stones from the cut ship are fed into the hopper 4 via a belt conveyor and fed into the chute 3, and at the same time, the vibrator 6 is operated to raise the stone to a predetermined height. While forming a new rubble mount 11 by dropping stones from the opening at the lower end of the chute 3 set in The rubble mounts 11 are successively constructed at a predetermined height by moving in the forward direction or the bow direction of the hull 1. In this case, since the vibrator 6 is installed on the leveling surface position setting plate 5 that is directly attached to the side of the lower end of the chute 3, the vibration of the vibrator 6 is transmitted to the chute through the leveling surface position setting plate 5. 3 and the stones in the chute 3, so the stones are dropped smoothly. For this reason, even if the inner diameter of the chute 3 is small to some extent, arch action by the stones is difficult to occur in the chute 3, and the traction force required for leveling the rubble is reduced by the vibration of the vibrator, and while the vibrator 6 is operating, the stones are The traction force required to level the rubble when the vibrator 6 is dropped is about 30% lower than the traction force when the vibrator 6 is stopped. In addition, the vibrations of the chute 3 are transmitted to the stones in the chute 3 while being dropped, and the thrown rubble is subjected to vibration by the leveling surface position setting plate 5, so that the rubble mounts 11 are formed densely, so that the rubble stones are It is possible to easily construct a rubble mount 11 of a predetermined height in which consolidation settlement of the rubble mount 11 due to its own weight is unlikely to occur. After building the rubble mount 11 with a predetermined width and height in this way, if there is a change in the height of the rubble mount 11 to be built next, the leveling surface position is adjusted by the winch 7 via the wire lobe 8. The lower ends of the setting plate 5, vibrator 6, and chute 3 are raised and separated from the rubble mount 11 that has already been formed, and then the hull 1 is moved to correspond to the position of the rubble mount 11 to be constructed next. After moving the hull 1, operate the winch 7 at the top end position of the rubble mount 11 to be constructed next, or place the leveling surface position setting plate 5 that will be operated, and place the chute 3 at the lower end of the chute 3. Place stones at a position where stones can be dropped from the opening, and use the same operation as above to drop stones from the chute 3 to successively construct a new rubble mount 11 adjacent to the previously constructed rubble mount 11. do. If the height of the rubble mount 11 to be built in this operation is the same as the height of the rubble mount 11 that has already been built, a leveling surface is placed on top of the top surface position of the rubble mount 11 that has already been built as a reference plane. New rubble mounts 11 can be built one after another at a constant height by repeating the above operations using the position setting plate 5 as a basic fixed tree. In this way, the method of the present invention constructs the rubble mount 11 by dropping stones while directly vibrating the chute 3 through which stones are dropped from a rubble leveling boat using the vibrator 6, thereby reducing the traction force required for leveling the rubble. In addition, a leveling surface position l setting plate 5 which can also use the top end surface position of the existing rubble mount 11 as the basic setting of the leveling surface.
Since the vibrator 6 applies direct vibration to the rubble mounts 11, the rubble mounts 11 can be built densely, and the rubble mounts 11 are difficult to sink after construction. Therefore, it is possible to rapidly construct j consecutive and uniform rubble mounts 11 of a predetermined height.

Further, the chute 3 is connected to the hull 1 so as to be movable up and down around the trunnion 2 and also to be movable left and right relative to the hull 1 by means of a spring. Leveling surface position setting plate 5
Since the structure is such that it does not affect the height of the rubble mount 11, the height of the rubble mount 11 will not become uneven due to the leveling surface becoming uneven due to the movement of the hull 1 due to waves. As described in detail above, in the method for leveling rubble according to the present invention, the chute 3 through which stones are dropped from the rubble leveling boat and the leveling surface position setting plate 5 disposed at the top surface position of the rubble mount 11 are directly moved using the vibrator 6. This is a method in which stones are dropped while vibrating to reduce the traction force required to level the thrown rubble, and the rubble mount 11 is built densely. Arch action by the stones is less likely to occur inside the dumpster, allowing stones to be dropped smoothly, and the traction force required to level the rubble is significantly reduced, making it possible not only to perform rubble stone work efficiently and quickly.
Since leveling is performed while vibrating the leveling surface position setting plate 5, the rubble mounts 11 can be built densely, and the rubble mounts 11 can be built uniformly at a constant height without sinking after being built. In addition, the rubble leveling boat according to the present invention has a vibrator 6 installed at the side of the lower end of the chute 3 through which stones are dropped to set the leveling surface position. Plate 5 is attached and chute 3
is connected to the hull 1 so as to be movable up and down around the trunnion 2, and to be movable left and right via a spring, and the vibration of the hull affects the chute 3, the vibrator 6, and the leveling position setting plate 5. Since the structure is such that the leveling surface does not become uneven due to the shaking of the hull 1 due to waves, the leveling surface can be built uniformly at a constant height, After building to a predetermined width and height, if the hull 1 is moved and the rubble mounts 11 are successively built one after another, the rubble mounts 11 of a constant height can be built continuously and uniformly in an extremely efficient manner. It has excellent advantages such as the ability to

[Brief explanation of the drawing]

The drawings show one embodiment of the rubble leveling boat according to the present invention, and FIG. 1 is a side view showing the working state, and FIG. 2 is a plan view thereof. 1... Hull, 2... Trunnion, 3.
...Chute, 4...Hopper, 5...
... Leveling surface position setting plate, 6 ... Vibrator, 7
...Winch, 8...Wire robe, 9
... Swing winch, 10 ... Wire robe, 11 ... Rubble mount, 12 ...
・Cockpit and living room, 13... Anchor.

Claims (1)

[Claims] 1. A leveling surface position setting plate 5 equipped with a vibrator 6 is attached to the side of the lower end of a vertically movable chute 3 through which stones are dropped from the hull 1 of a rubble leveling boat. Leveling surface position setting plate 6
is placed at the top surface of the rubble mound 11 to be built to a predetermined height, and the chute 3 is placed in a position where stones can be dropped from the lower end opening of the chute 3 to the side of the newly constructed rubble mound 11, By applying vibration to the chute 3 and the leveling surface position setting plate 5 with the vibrator 6, the traction force required for leveling the rubble thrown from the chute 3 is reduced, and the vibration applied to the thrown rubble can be A rubble leveling method characterized by densely building rubble mounds 11. 2. According to claim 1, the leveling surface position setting plate 5 is attached so as to protrude in the opposite direction to the hull 1, and the rubble mound 11 is continuously constructed in the direction of the hull 1 adjacent to the existing rubble mound 11. The rubble stone leveling method described. 3. Scope of Claims: The leveling surface position setting plate 5 placed at the top end position of the existing rubble mound 11 is used as a basic setting tree for the height of the newly installed rubble mound 11 to construct the rubble mound 11 at a predetermined height. The rubble leveling method described in paragraph 1 or 2. 4 A leveling surface position setting plate 5 on which a vibrator 6 is installed is attached to the side of the lower end of a vertically movable chute 3 through which stones are dropped from the hull 1. A rubble leveling boat characterized in that it is movable up and down with respect to a hull 1 and is connected via a spring so as to be movable left and right with respect to a hull 1. 5. The rubble leveling boat according to claim 4, wherein the leveling surface position setting plate 5 is attached to protrude in a direction opposite to the hull 1. 6. Claim 4, in which the leveling surface position setting plate 5 on which the vibrator 6 is installed is attached with a weight that will not collapse the existing rubble mound 11 even if it is placed at the top surface position of the existing rubble mound 11. A rubble leveling boat as described in paragraph or paragraph 5. 7. A patent claim in which the chute 3, the vibrator 6, and the leveling surface position setting plate 5 are connected to a winch 7 installed on the hull 1 via a wire rope 8, and are movable vertically and horizontally around the trunnion 2. A rubble leveling boat according to any one of the items 4 to 6.