JPH09228772A - Conveying device for muddy ground and conveying device for muddy ground in boring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an economical and efficient conveyance of material or enable boring search even in the case of super soft ground by sequentially grounding first and second floating bodies, and reciprocally moving the second floating body. SOLUTION: First floading bodies 4, 4 retaining a load carrier 1 carrying a load thereon on the muddy ground are made to move up and down by hydraulic cylinders 6.... Second floating bodies 8, 8 retaining the load carrier 1 while being grounded on the muddy ground are made to move reciprocally in the horizontal direction by a hydraulic cylinder 13. According to the sequential grounding of both floating bodies 4, 8 and the reciprocal motion of the second floating body 8, the loading carrier 1 is made to travel on the muddy ground stably. The second floating body 8 is rotated by hydraulic cylinders 11, 11 to direct the carrier 1 to an destination. At the lower surface of each floating body 4, 8 a net-like body is layed as a cover to facilitate the cutting of muddy ground.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier suitable for carrying materials and the like on a super soft mud ground and a carrier suitable for carrying a boring device on an ultra soft mud ground.

[0002]

2. Description of the Related Art In recent years, artificial islands have been set up in which the outer seawall has been constructed along the coast, and only the sediment dredged around the seashore has been provided therein. You may be required to carry in the product. In such artificial islands, sludge with a low specific gravity forms the upper layer, and the surface is in a very soft state. May slip or be so weak that such crawlers cannot be used yet. In such a case, the pier is extended from one point on the revetment to the destination point while styrofoam and a scaffold plate are added, and the purpose of material loading, boring survey, and the like is achieved using the pier.

[0003]

However, in the method of extending the jetty to this destination point, the use of machinery for the construction of the jetty is limited because it is on an extremely soft mud ground, and the construction is required. The more days it takes to reach the destination, the longer it will take, and the cost will increase proportionately. In addition, when materials are to be carried into multiple locations on the artificial island or a boring survey is to be carried out, the construction of this jetty and boring equipment is in an unstable place while ensuring safety. This required a lot of days and was extremely inefficient.

The present invention has been made in order to solve the above-mentioned conventional problems, and its object is to construct a pier or the like even if the upper part of the artificial island is in a mud-like and super-soft state. Even if there are multiple destinations for material transportation or boring surveys without needing them, it can be economically and efficiently carried out without increasing the number of days, manpower, and costs, and it is a mud ground carrier. Another object of the present invention is to provide a carrier for a muddy ground of a boring device.

[0005]

[Means for Solving the Problems] As a means for achieving the above object, in a carrier for ultra-soft ground according to claim 1 of the present invention, a horizontally-arranged cargo bed; A first buoyant body supported on the ground; an elevating means for raising and lowering the first buoyant body with respect to the cargo bed; a first buoyant body that is elevated with the cargo bed and is in a lowered position with respect to the first buoyant body Instead, a second buoyant body that is grounded on the mud-like ground to support the carrier; and a horizontal moving unit that horizontally reciprocates the second buoyant member with respect to the carrier are employed.

In this configuration, at the start point, the first and second
The buoyancy body is in the state of being in contact with the ground, and the second buoyancy body is moved to the rear of the luggage carrier.
By lowering the first buoyancy body with respect to the loading platform, the loading platform is supported on the mud ground only by the first buoyancy body, and the second buoyancy is grounded from the mud ground. This ground-cut second buoyancy body is moved to the front side of the loading platform by the horizontal moving means, and then the first
Raise the buoyancy body. That is, at this time, the second buoyant body is descending together with the bed, and when the lower surface of the second buoyant body is in contact with the muddy ground, the second buoyant body replaces the first buoyant body and supports the bed in a muddy ground shape. After the second buoyancy body supports the luggage carrier on the mud ground, the second buoyancy body is horizontally moved with respect to the luggage carrier by the horizontal moving means, that is, the luggage carrier is relatively moved forward. By repeating this, it is possible to walk forward and transport materials and the like to the destination.

According to a second aspect of the present invention, there is provided a muddy ground carrier according to the first aspect, wherein the muddy ground carrier is provided with a rotating means for horizontally rotating the cargo bed with respect to the second buoyancy body by an appropriate angle. It has a different configuration. With this configuration, when the carrier for mud ground is moving to the front side and the second buoyant body is in contact with the mud ground, the rotating means rotates the loading platform in one direction by an appropriate angle. The direction of travel can be changed by changing the direction of the first buoyancy body and lowering the bed in that state, that is, by grounding the first buoyancy body.

According to a third aspect of the present invention, there is provided a mud ground carrier according to the first or second aspect, wherein the first and second buoyant bodies support a loading platform on which water is loaded. It has buoyancy and is provided with an underwater propulsion unit below the platform. With this configuration, even when the tide is filled during use on an artificial island or the like, the entire muddy ground transporter can be floated and advanced to the next destination by the underwater propulsion device.

According to a fourth aspect of the present invention, there is provided a mud ground carrier according to the first, second or third aspect of the present invention.
The lower surface of the first and second buoyancy bodies was covered with a net-like body. In this configuration, even if the lower surface of the first or second buoyancy body is flat and is adsorbed on the mud ground, when raising it, the mesh body breaks the adsorption surface, so that the buoyancy body is cut off smoothly. Can be made.

According to a fifth aspect of the present invention, there is provided a boring machine carrier for a mud ground, wherein a boring device including a turret, a boring machine, etc. is installed on a bed of the mud ground carrier according to the first, second, third or fourth aspect. It was made into the composition. With this configuration, it is possible to smoothly convey the boring device while adjusting the direction on the mud ground toward the destination, and to perform a boring survey on the mud ground at an accurate measurement point.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view showing a muddy ground transporter A according to the present embodiment, and FIGS. 2 and 3 are rear views showing the same, and both figures show an operating state of a buoyant body during transport. . FIG. 4 is a sectional view taken along line MM in FIG.

In the figure, reference numeral 1 is a luggage carrier, which is framed with a light-weight steel having sufficient strength, brackets 2 having horizontal bottom plates are provided at four corners, and right side brackets 2 and 2 and left side brackets 2 and 2 are provided. Each pair is a set of rows, and guide rails (for example, channel steels) 3 having a substantially U shape are parallel to each other on the inner side of the row and have substantially the same length as the front-back width of the first buoyancy body 4 described later. Is provided.

Numeral 4 is a first buoyant body mainly composed of styrofoam, which has a rectangular shape by equally dividing the total weight of the loading platform 1 loaded with the rated load into a capacity capable of sufficiently supporting it on water. The brackets 2 and 2 are arranged at the center positions. The main part is appropriately reinforced with a steel material, and at least a low surface part is covered with an expanded metal, and is provided as a mesh body 5 which also serves to prevent the adsorption of muddy ground. Incidentally, a fish net or the like is also suitable as the net-like body 5. Four
a is a connection frame connecting the ends of the first buoyant body 4 to each other.

Reference numeral 6 is a lifting means using a hydraulic cylinder,
One end side is fixed to the bottom plate of the bracket 2, respectively.
The rod tip is connected to the reinforcing portion of the first buoyant body 4. The elevating means 6 can elevate and lower the first buoyancy body 4 until the lower surface of the first buoyancy body 4 is located above and below the lower surface of the second buoyancy body 8. The lifting means is a screw shaft,
Rack devices are also suitable. Reference numeral 7 denotes a hydraulic pressure generator installed on a carrier.

Numeral 8 is a second buoyancy body mainly made of expanded polystyrene like the first buoyancy body. In this case, one unit has a capacity sufficient to support the total weight of the rated load on the water. It is formed and is located below the central portion of the loading platform 1 and between the first buoyancy bodies 4 and 4. The second buoyancy body 8 has a width approximately equal to the front-back direction width of the first buoyancy body 4 /
It is formed to have a width of 3 and has an upper frame 9, which is rotatably horizontally supported by the upper frame 9 at a central portion thereof. Further, hydraulic cylinders are respectively arranged as turning means 11 in opposite directions on both sides of the second buoyancy body 8 on a horizontal line passing through the shaft support 10, and one end of the hydraulic cylinder is arranged at the upper frame 9 And the tip of the rod is connected to the second buoyancy body 8 side. It is to be noted that, as the rotating means 11, a rack, a chain, a gear device, a screw shaft, a wire hook, and the like can be applied outside the hydraulic cylinder.

The upper frame 9 has rollers 12 on both sides facing each other. By inserting the rollers 12 into the guide rails 3 and 3, the second buoyancy body 8 is placed on the lower surface side in the loading platform 1. It is mounted so that it can move horizontally.

Reference numeral 13 is a horizontal moving means using a hydraulic cylinder, one end side of which is connected to one end side of the loading platform, and the tip of the rod is connected to the tip side of the upper frame 9.

Next, the operation and usage state will be described. In the above configuration, the first buoyant body 4,
4 are operated by lifting means 6, 6,..., That is, the loading platform 1 is raised and lowered when the first buoyant bodies 4, 4 are in contact with the muddy ground G due to the height difference from the second buoyant body 8,
It is not in contact with the muddy ground G (that is, the second buoyant body 8
In the state of being grounded), it acts as if it is going up and down by itself.

Further, the second buoyant body 8 acts horizontally by the horizontal moving means, that is, when the second buoyant body 8 is grounded to the mud ground G due to the difference in height from the first buoyant body 4, 1 moves back and forth, and when it is not in contact with the mud ground G (that is, the first buoyancy body 4 is in contact with ground), it acts as if it were moving forward and backward by itself.

Then, at the starting point, the first buoyancy bodies 4, 4
And the second buoyancy body 8 are both in contact with the muddy ground G, and the second buoyancy body 8 is arranged behind the carrier 1. In this state, the loading platform 1 is first raised by simultaneously lowering the first buoyancy members 4, 4 by the lifting / lowering means 6, 6,..., And the second buoyancy members 8 are separated from the muddy ground G to remove the loading platform 1. Only the first buoyant members 4 and 4 are supported on the muddy ground G. When the second buoyancy body 8 is ground cut, the lower surface of the second buoyancy body 8 smoothly rises without applying an excessive force to each part because the mesh body 5 weakens the adsorption effect of the mud ground G. Can be made.

After the ground cutting of the second buoyant body 8, the horizontal moving means 1
The second buoyancy member 8 is moved to the front of the bed 1 by 3 and the first buoyancy members 4 and 4 are raised, that is, the bed 1 is lowered at that position. As a result, the second buoyant body 8 comes into contact with the ground, and the first buoyant body is grounded. At this time, the muddy ground conveyor A is not directed to the destination, that is, the guide rail 3 on which the second buoyant body 8 is mounted. , 3 are not directed to the destination, the platform 1, that is, the guide rails 3, 3 are rotated by the rotating means 11 so as to be directed to the destination. In this state, the platform 1 is moved forward by the horizontal moving means 13. After the completion of the forward movement, the first buoyancy bodies 4 and 4 are lowered to the ground and the second buoyancy bodies 8 are grounded. Then, after returning the direction of the second buoyancy body 8 to the guide rails 3 and 3 and returning to the rear of the loading platform, the above steps are repeated so that the second buoyancy body 8 can be correctly walked toward the destination and the materials and the like can be conveyed.

As described above, in the mud soil carrier A according to the first embodiment, the first buoyancy bodies 4, 4 and the second buoyancy body 8 are sequentially grounded and the second buoyancy body 8 is moved forward and backward. By the operation, it is possible to stably walk on the mud-like ground and reliably transport the load such as materials to the destination. By rotating the second buoyancy body 8, it is possible to convey the material and the like correctly continuously to a plurality of destinations in different directions. The first buoyant bodies 4, 4 and the second buoyant body 8 have a wide bottom surface so as to be stably grounded on the muddy ground G, and have a shape that is easily adsorbed to the muddy ground. To make the ground cut smoothly. Also for this,
Do not apply excessive force to each part.

Next, a second embodiment will be described with reference to FIG. The carrier B for muddy ground according to the present embodiment is
The underwater propulsion device is characterized by having a hydraulically driven propeller device 14 on a rear connecting frame 4a. The propeller device 14 is of a pull-up type and is used by lowering it until it is submerged in water when necessary. The steering is performed by changing the direction of the propeller device 14, but the propeller devices are separately attached to both ends of the connecting frame 4a, and both are driven to steer by stopping only one of the propeller devices during conveyance. Good. Further, a general outboard motor may be attached instead of the hydraulic drive. Since other configurations are the same as those of the first embodiment, the same components are denoted by the same reference numerals and description thereof will be omitted.

According to the present embodiment, even when the tide is filled during the transportation on the mud-like ground and the grounding of the first and second buoyancy bodies 4 and 8 becomes impossible, the buoyancy bodies levitate. There is an advantage that it can be stably transported on water.

Next, a third embodiment will be described with reference to FIG. The mud soil carrier C of the boring device according to the present embodiment is characterized by having the loading platform 1 in which the boring device 15 is placed in a usable state. The boring device 15 has a turret 16 standing upright on the tip end side of the loading platform 1 and a boring machine 17 installed below it. Further, on the upper surface of the loading platform 1, a lightweight floor material provided with anti-slip is laid, and a set of materials (not shown) necessary for boring are loaded. Since the other configurations are the same as those of the first and second embodiments, the same reference numerals are given to the same components and the description thereof will be omitted.

According to the present embodiment, the boring device 15 can be accurately positioned at the boring survey point by adjusting the conveying direction by the rotating means 11. The boring survey can be performed safely even on unstable mud ground simply by walking to the boring survey point. Even if there is a height difference in the ground at the survey location, the first buoyant body 4,
By adjusting the height difference of 4, the verticality of the boring rod and various equipment can be easily obtained. When there are a plurality of boring survey points, the entire set can be moved without disassembling the turret or the like, so that labor and time for disassembling and assembling are not required, which is very efficient.

Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to this embodiment, and there are design changes and the like within the scope not departing from the gist of the invention. However, it is included in the present invention.

For example, the conveyance using the first buoyancy bodies 4, 4 and the second buoyancy body 8 can be automatically performed by sequence control or the like.

The material and shape of the buoyancy bodies 4 and 8 are arbitrary,
A boat-shaped float or the like made of light metal can also be used.

The second buoyant body 8 is supposed to rotate with respect to the upper frame 9, but this part may be fixed and the complete set of guide rails may be rotated with respect to the bed.

[0031]

As described above, the first aspect of the present invention is as follows.
Since the mud ground carrier described above has the above-described structure, it is stable on the mud ground due to the repeated grounding of the first buoyancy body and the second buoyancy body and the reciprocating movement of the second buoyancy body. It is possible to obtain the effect that the load can be transported.

In the mud soil carrier according to the second aspect of the present invention, since it has the above-described structure, the second buoyant body is rotated by an appropriate angle to adjust the transportation direction, and the load such as material is delivered to the destination. The effect that it can be accurately conveyed is obtained.

In the mud soil carrier according to the third aspect of the present invention, because of the above construction, during transportation on the mud soil of the artificial island, the tide is full and the first and second buoyant bodies cannot be grounded. Even
It is possible to obtain the effect of being able to float on the water and stably and accurately convey the load to the destination by the underwater propulsion device.

In the mud soil carrier according to the fourth aspect of the present invention, since it has the above-mentioned structure, it is easy to adsorb to the mud soil by adopting a wide bottom surface so that it can be stably grounded on the mud soil. Even if it takes a shape, the net-like material weakens the adsorption action and enables smooth ground cutting. In addition, for this reason, it is possible to obtain effects such that the power does not need to be increased and an excessive force does not act on each part.

In the mud-ground carrier of the boring device according to the fifth aspect of the present invention, since it has the above-mentioned structure, the boring device is accurately conveyed and positioned at the boring survey point by adjusting the conveying direction by the rotating means. You can It is possible to safely carry out a boring survey even on an unstable muddy ground simply by transporting to a boring survey point. If there are multiple drilling survey points, the tower can be moved as it is without disassembling it, so the labor and time required for disassembly and assembly on muddy ground are not required, and it is very efficient. The effect is obtained.

[Brief description of drawings]

FIG. 1 is a plan view showing a muddy ground transporter according to a first embodiment of the present invention.

FIG. 2 is a rear view of the muddy ground transporter of the above, showing a state in which a first buoyant body is raised.

FIG. 3 is a rear view of the muddy ground transporter of the above, showing a state where a first buoyant body is lowered.

FIG. 4 is a sectional view taken along line MM in FIG. 3 of the above.

FIG. 5 is an explanatory diagram showing a muddy ground transporter according to a second embodiment.

FIG. 6 is an explanatory diagram showing a carrier for muddy ground according to a third embodiment.

[Explanation of symbols]

 A, B Conveyor for mud ground C Conveyor for mud ground of boring device G Mud ground 1 Loading platform 3 Guide rail 4 First buoyant body 5 Netted body (expanded metal) 6 Lifting means (hydraulic cylinder) 7 Hydraulic pressure generation Device 8 Second buoyant body 10 Shaft support 11 Rotating means (hydraulic cylinder) 12 Roller 13 Horizontal moving means (hydraulic cylinder) 14 Propeller device (underwater propulsion device) 15 Boring device 16 Turret of boring device 17 Boring machine

Claims (5)

[Claims] 1. A horizontally arranged loading platform; a first buoyant body for holding the loading platform loaded with the load on a mud-like ground; an elevating means for moving the first buoyancy body up and down with respect to the loading platform; the loading platform A second buoyant body that moves up and down together with the first buoyancy body and is in a descending position with respect to the first buoyancy body, and that holds the luggage carrier by grounding on the mud ground in place of the first buoyancy body; And a horizontal movement means for reciprocating in the horizontal direction; 2. The carrier for mud ground according to claim 1, further comprising a rotating means for horizontally rotating the loading platform with respect to the second buoyancy body at an appropriate angle. Machine. 3. The mud soil carrier according to claim 1 or 2, wherein the first and second buoyant bodies have buoyancy for holding a load carrying a load on the water, and the underwater is provided below the load. A carrier for mud ground characterized by having a propulsion device. 4. The carrier for mud ground according to claim 1, 2, or 3, wherein the lower surfaces of the first and second buoyant bodies are covered with a mesh body. . 5. A muddy ground conveying machine for a boring machine, comprising a boring device comprising a turret, a boring machine or the like installed on a bed of the muddy ground conveying machine according to claim 1, 2, 3 or 4. Machine.