JPH0742701B2 - Underwater laying equipment for asphalt - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for driving asphalts on the seabed or the like, and more particularly to a device for driving asphalts with a uniform thickness over a wide area.

[0002]

2. Description of the Related Art When constructing a coastal structure such as a breakwater or a seawall, a rubble foundation is constructed as the foundation of the structure, and the upper portion of the foundation is leveled and then the upper structure such as caisson is removed. A means for constructing and arranging a wave breaking member such as a tetrapod on the side of the structure is generally used. When constructing the coastal structure in a place with rough waves, in order to prevent the rubble foundation from being destroyed by the waves, asphalt is poured between the rubble foundation to consolidate the rubble foundation. Means may be used. In addition, even in places where the tide is relatively fast, as a means of protecting the rubble foundation, it is practiced to construct a rubble foundation on the sea floor and at the same time pour in asphalt to protect the rubble foundation.

In order to apply the asphalt,
For example, as disclosed in Japanese Examined Patent Publication No. 55-42205, a method of driving asphalts to the seabed using a hose is used. The placing device used in the above-mentioned conventional example is configured as shown in FIG. 7, and is constructed from the hopper 11 of the placing device 10 suspended by a marine crane or the like via the wire 18 to the double pipe. 12 and the flexible hose 13 are extended so that the tip of the flexible hose 13 reaches the seabed. And
The asphalt thrown into the hopper 11 flows down in a state where the double pipe and the flexible hose are expanded and is supplied toward a rubble foundation or the like. Then, due to the fluidity of the asphalts, the asphalts flow between the rubbles to fill the gaps between the rubbles, and the stones are solidified by the asphalts to protect the rubble foundation.

In addition to the asphalt driving method using the hose, a driving apparatus 1 as shown in FIG.
5 may be used in some cases. In the driving apparatus shown in FIG. 8, the bucket 16 containing the asphalt is hung on a crane or the like via a wire 18, and the bucket 16 is lowered into the sea at the construction site, and then the opening / closing lid 17 is opened. So that the asphalts will flow down on the rubble foundation.
Then, as in the case of FIG. 7, the asphalt is poured into between the stones of the rubble foundation to fill the gaps between the stones.

The asphalt construction method as described above is used, for example, for protection of seawalls in fast-flowing sea areas and in areas with rough waves. By protecting the rubble foundation, It is used as a means of protecting the structure constructed above it from the effects of waves. The asphalt used to protect the rubble foundation is a mixture of asphalt called sand mastic, gravel mastic, etc. and sand or aggregate. Then, the asphalts are constructed on the seabed or the like in a state of having fluidity at high temperature.

[0006]

7 or 8 described above.
The underwater laying device for asphalts as shown in, for example, when the asphalts are installed on the seabed, as shown in FIG. 9, the asphalts to be installed first are between the stones of the rubble foundation 1. The casting layer 3 is made to be in a state of being allowed to enter. Next, the protection layer 4 is constructed on the surface of the rubble foundation by performing the second placing work. Then, every time the placing work is performed, the diver positions the tip of the flexible hose 13 at the place of placing, and asphalts are put into the hopper of the placing device as shown in FIG. The asphalt 2 is constructed at a predetermined position of. Further, also in the case of a placing device using a bucket, a diver uses a means for opening the bottom plate of the bucket at the construction site and constructing asphalt.

However, when the asphalts are to be constructed on the deep seabed, the conventional construction method as described above results in a very poor work efficiency, which causes a serious problem during the construction period. In other words, in the case of the method using a bucket, asphalts are only placed as one point by operating the opening / closing lid once, and when the area of the rubble foundation is large, work to equip a large number of buckets Even if a ship is used, there is a problem that the efficiency of the construction is not good. There is also a problem that the diving worker cannot work continuously for a long time because the diving worker's workable time is short on the deep sea bottom. Further, in the buckets that have been conventionally used, asphalt is apt to adhere to the inner surface of the bucket, and there is a great problem in cleaning the bucket after the work.

On the other hand, in the case of using the asphalt construction method using the flexible hose, in order to sequentially drive the asphalts discharged from the hose linearly on the rubble foundation, The efficiency can be improved as compared with the bucket method. However, moving the hose on the deep sea bottom also forces the diver to perform extremely difficult work, and has many problems in terms of workability.

[0009]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems in the construction of conventional asphalts by using a placing device in which a large number of small buckets are connected vertically and horizontally, and the bottom plate of such buckets is used. The purpose of the present invention is to provide an apparatus that enables the asphalts to be uniformly placed in a large area at once by opening and closing them in conjunction with each other, and also allows the asphalt to be easily installed on the slope of the underwater foundation. .

[0010]

A submerged laying apparatus for asphalts according to the present invention has a large number of buckets arranged vertically and laterally with respect to a frame suspended by a crane or the like, and the bucket device is attached to the bottom portion of each bucket. Each has an opening / closing lid and means for preventing asphalt from adhering to the inside of the bucket, and the frame is configured to correspond to the inclination angle of the underwater foundation etc. The lids may be arranged in different steps, and the opening / closing lids provided on the buckets may be configured to be opened in conjunction with each other.

[0011]

With the above construction, in the asphalt underwater laying apparatus of the present invention, a large number of buckets are provided in a connected state, and the bottom plates of those buckets are opened at once so that a large area can be obtained. On the other hand, the asphalt piling work can be performed once. In addition, by arranging buckets according to the slope of the sloped part of the rubble foundation, asphalt can be constructed along the sloped surface, and the construction work can be performed easily. Become. Therefore, it is possible to efficiently perform the asphalt construction work on the deep seabed, so that it is possible to perform the asphalt construction on a large area by one dive of the diver. Further, in the device of the present invention, by applying an asphalt adhesion preventing means such as coating the inner surface of the bucket with Teflon, the asphalt does not adhere, so the labor of cleaning the bucket after the work can be saved. You can

[0012]

EXAMPLE An underwater laying apparatus for asphalts according to the present invention will be described with reference to the illustrated example. First, a placing device 20 shown in FIGS. 1 and 2 shows a basic configuration of an asphalt placing device, and is a frame formed by providing leg members 22 at the four corners of the device body. A bucket device 23 is arranged inside the device 21, and the bucket device 2
3 is configured by arranging a large number of buckets 24 ... In a grid pattern. As the bucket 24, for example, as shown in the drawing, it is possible to connect square-shaped ones and arrange the same ones in a plurality of rows in the lateral direction. Alternatively, a large number of cylindrical buckets or the like may be provided. As mentioned above,
The placing device 20 in which a large number of buckets 24 are connected to each other connects the wire 18 via, for example, an attaching means (for example, an eye portion) provided on the upper portion of the leg member, and the hook 1 of the crane is connected.
Suspend via 9. In the above apparatus, the inner surface of the bucket and the portion in contact with the asphalt are coated with Teflon, silicone resin or the like to prevent the asphalt from adhering.

Each of the buckets 24 ... Comprising the bucket device 23 is provided with an opening / closing lid 25 ... at the bottom portion thereof, and each of the buckets 25. It is possible. As the means for opening and closing the bucket, for example, interlocking means as shown in FIG. 3 can be used. In the example shown in FIG. 3, the opening / closing lid 25 is provided so as to be openable / closable via a hinge 31, and a pin member 32 is projected at the other end of the opening / closing lid. In the opening / closing device 30, the hooks 34 are attached to the rod 33 at predetermined intervals, and the hook 3
When 4 is below the pin 32 of the opening / closing lid 25, the opening / closing lid is held so that the asphalt contained in the bucket does not leak out.

Further, the rod 33 is provided so as to be slidable in its axial direction. When the rod 33 is slid in the direction of the arrow in FIG. release. At the end of the rod, as a driving means not shown, for example, a mechanism for moving the rod when a crane operator pulls a rope or a member operated by a diver is arranged. It is possible to provide a mechanism for interlocking the members for driving the rods with the adjacent opening / closing lid. Then, in a state where a predetermined amount of asphalts are stored in all the buckets, the buckets are put down on a rubble foundation constructed on the sea floor, and as shown in FIG. The opening / closing lid 25 of each bucket is opened at a time in a state of being positioned above the bucket.

By the action of opening the opening / closing lid, the asphalts 2 contained in each bucket are discharged to the upper part of the rubble foundation 1 all at once, and each bucket has an amount of asphalts according to its area. Therefore, the asphalts are discharged in a small mountain shape in an area corresponding to the size of the driving apparatus 20. Then, due to the fluidity of the asphalts 2, the asphalt 2 is made to flow down into the rubble gap to fill the gap, and the first casting is performed by continuing the work. Then
When the second layer of asphalts is formed, the asphalts can be cast by the same operation on the layer that was first cast. Therefore, when the placing device 20 is used, asphalts stored in a large number of buckets can be placed at a time over a wide area, and the opening / closing lid is opened during each placing operation. You only have to do once.

In the case of using the placing device 20 having the structure shown in FIGS. 1 to 3, the bucket 24 is provided with the opening / closing lid 25 which can be opened and closed only on one side. As shown in FIG. 4 or FIG. 5, opening / closing lids having different configurations can be used. In the example shown in FIG. 4, the double-sided opening / closing lid 26 can be used. In the opening / closing lid 26 shown in FIG. 4, two opening / closing lids are provided such that they can be opened via a hinge 26a at the central portion so that the asphalts contained in the bucket can be discharged separately on both sides. There is. Further, in the bucket shown in FIG. 5, a predetermined portion of the opening / closing lid 27 is supported by a hinge 27a, and the opening / closing lid 27 is provided so as to be inclined to one side when the locking means is removed. Then, the asphalt contained in the bucket is discharged by opening the opening / closing lid 27.

As for the opening / closing lids shown in the above-mentioned respective embodiments, by providing an interlocking mechanism that allows the asphalts to be discharged from all the opening / closing lids or buckets for each row at a time, A mechanism is constructed so that the work of placing can be done easily. As described above, when a large number of buckets are arranged and asphalts are placed in a large area at a time, the area of each bucket and the like can be set arbitrarily. Further, for example, when asphalt is to be laid on a very deep seabed with a water depth of about 50 m, it is preferable that the area to be constructed by the laying device at one time is as large as possible. As a result, the work efficiency of the diver's single dive can be improved.

[0018]

[Asphalt Placing Device for Inclined Surface] In the example of the basic placing device of the present invention as described above, the device for constructing asphalt on the upper part of a rubble foundation or the like is explained. When the placing device 20 is used, asphalts can be efficiently installed on a substantially flat place. However, when asphalts are to be constructed on a sloped portion such as a sloped portion of a rubble foundation, if the placing device 20 corresponding to the horizontal plane as described above is used, one end of the rubble foundation is close to the rubble foundation. However, since the asphalts are discharged from a very high position at the other end, it is difficult to uniformly apply the mixture. Therefore, in the present invention, for a place such as an inclined part of a rubble foundation, the placing device 4 shown in FIG. 6 is used.
A device configured as 0 can be used.

As described above, the placing device 40 configured to correspond to the inclined surface of the rubble foundation is similar to the case of FIG. Vertical leg members 42 are provided upright at four corners downward. Further, the frame 41 is configured to be inclined in correspondence with the inclined portion 1a of the rubble foundation, etc.,
A lifting member is arranged on the leg material 42 of the frame, and the lifting member is connected to the wire 18,
Make sure to hang it on the hook 19 of the crane. In addition,
The frame 41 of the driving device 40 is formed into a substantially rhombic shape when viewed from the side, but has a substantially rectangular shape when viewed from the top.

On the frame 41 of the placing device 40, a row of buckets in which a large number of buckets 44 ... Are connected in the lateral direction are arranged in a staggered pattern corresponding to the inclined portion 1a of the rubble foundation. There is. Further, opening / closing lids 47 ... Are provided for each row of buckets so as to be swingable via a hinge 47a, and the opening / closing lids are provided so as to be opened / closed in conjunction with each other. Further, with respect to the opening / closing lids of the buckets arranged in different steps, it is possible to provide opening / closing means for opening all the opening / closing lids at a time.
A lid opening / closing means as shown in FIG. 5 can be provided. For example, when the opening / closing lid 47 arranged in the bucket of the placing device 40 of FIG. 6 is configured as shown in FIG. 5, the locking with respect to the fixing member arranged at one end of the lid is released. As a result, the opening / closing lid can be swung. Further, when the opening / closing lid is configured as shown in FIG. 3, it is possible to configure a mechanism capable of performing the opening / closing operation more easily.

When asphalts are submerged by using the placing device 40, each bucket of the placing device is hung by a crane while containing a predetermined amount of asphalt. And place it on the bottom of the sea floor, and install it along the inclined surface of the casting site according to the instructions of the diver. Then, by operating the crane operator or by operating the diver, the opening / closing lids are opened all at once, and the asphalts are discharged from each bucket. At that time, asphalt is discharged all at once in a wide area, but the amount of asphalt discharged from each bucket is such that the amount of asphalt discharged from each bucket is such that it fills the gaps between the stones in the rubble foundation, so extra amount is generated It does not flow down the slope. Also, in the case of the second asphalt construction, the asphalt discharged from each bucket is in a state of being deposited near the discharge part.

In addition, in the placing device 40 in which the buckets are arranged along the inclined portion of the rubble foundation, in addition to the arrangement of the buckets in different steps as shown in the above embodiment,
It is also possible to dispose only the leg members in an inclined state with respect to the driving device 20 shown in FIG. Then, for example, when the buckets arranged in a tilted state are configured as a mechanism capable of operating the opening / closing lid in a good state, there is no hindrance to the discharge of asphalt. It also becomes. And, as mentioned above,
By supporting a large number of buckets on one frame and discharging the asphalts from the buckets at once, the construction efficiency of the asphalts on the deep seabed can be improved.

[0023]

INDUSTRIAL APPLICABILITY Since the asphalt underwater laying apparatus of the present invention uses the above-mentioned placing apparatus,
With a large number of opening / closing lids connected to the placing device, by opening those buckets at once, it is possible to perform the asphalt placement work on a large area at one time. it can. Therefore, since the asphalt construction work on the deep sea bottom can be efficiently performed, it becomes possible to construct the asphalt on a large area by one dive of the diver. Also, by arranging the opening / closing lid according to the inclination of the sloping portion of the rubble foundation, asphalt can be constructed along the inclined surface, and the construction work can be easily performed. Will be things. Furthermore, in the device of the present invention, by applying a means such as coating Teflon on the inner surface of the bucket,
Since the asphalt does not adhere, it is possible to save labor such as cleaning the bucket after the work.

[Brief description of drawings]

FIG. 1 is a perspective view showing a basic configuration of an asphalt driving device.

FIG. 2 is an explanatory diagram of a construction state of asphalt using the apparatus of FIG.

FIG. 3 is an explanatory view of an interlocking mechanism for opening / closing an opening / closing lid provided in the device of FIG.

FIG. 4 is an explanatory view of another embodiment of the opening / closing lid.

FIG. 5 is an explanatory view of another embodiment of the opening / closing lid.

FIG. 6 is an explanatory view of an embodiment of the driving apparatus of the present invention.

FIG. 7 is an explanatory diagram of a conventional asphalt construction device.

FIG. 8 is an explanatory view of another conventional asphalt construction device.

9 is an explanatory view of a construction state of asphalt using the apparatus shown in FIG.

[Explanation of symbols]

1 Rubble stone foundation, 10 ・ 15 ・ 20 ・ 40 Placing device, 21 frame, 22 leg members, 23 bucket device, 24 bucket, 25 ・ 26 ・ 27 ・ 47 opening / closing lid, 30 opening / closing device, 33 rod, 34 hook, 44 Bucket equipment.

Claims (1)

[Claims] 1. A bucket device is constructed by arranging a large number of buckets in a vertical and horizontal direction with respect to a frame suspended by a crane or the like, and an opening / closing lid is arranged at the bottom of each bucket, and an inner surface of the bucket is provided. By applying an asphalt adhesion preventing means, the frame is configured in correspondence with the inclination angle of the underwater foundation, etc., each bucket constituting the bucket device is arranged in a stepwise manner, and an opening / closing lid provided on each bucket is provided. An underwater laying device for asphalts, which is configured to open in conjunction with each other.