JPH01186490A - Block for super-light coupling and float structure using said block and method of coating anticorrosive coating material of block for super-light coupling - Google Patents

Abstract

PURPOSE: To connect and assemble blocks quickly and easily by covering the outer periphery of the block made of an extra-light material, providing connection sections for the connection to another block of the same type, and setting the specific gravity of the whole block to 1 or below. CONSTITUTION: The surface of a rectangular solid-shaped extra-light material 2 made of foam styrol having the specific gravity of about 0.02 or above is covered with a corrosion-proof cover material 3 such as foam concrete or an FRP material, and the total specific weight is set to 1 or below to form an extra-light connecting block 1. Connection sections 4 having oblong holes 4a at the center are fixedly provided in the right and left directions of angle materials arranged on the upper and lower end edges of the extra-light connecting block 1, and bolts are inserted into the adjacent connection sections 4 to connect them. A work support floating structure such as a work scaffold or a bridge girder constructed on the sea water surface or the poor subsoil can be easily constructed by connecting/disconnecting the connecting blocks 1.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention can be used, for example, on the sea surface of the sea, rivers, lakes, etc., or on soft ground containing a large amount of moisture, such as marshes and muddy soil. The present invention relates to an ultra-lightweight connecting block, a floating structure using the same, and a method of coating the ultra-lightweight connecting block with a corrosion-resistant coating.

[Conventional technology]

Traditionally, civil engineering work has been carried out as necessary, for example, on the sea level of the ocean, rivers, lakes, etc., or on soft ground containing a large amount of moisture, such as wetlands and muddy soil. be.

When construction is to be carried out in such places, the scaffolding on sea level or soft ground is extremely poor and construction cannot be carried out as it is, so scaffolding must be constructed before construction begins. Ru.

In addition, in civil engineering work, construction materials such as concrete, gravel, reinforcing bars, installation equipment, and various civil engineering work machines are used at the construction site, so these materials and work machines must be transported to the construction site. For this reason,
It becomes necessary to secure a passageway for transporting these materials and working machines to the construction site.

If there are places with poor footing, such as sea level or soft ground, on the transport route to the construction site, temporary bridge girders are erected to ensure that there is no problem in transporting construction materials and civil engineering machinery. It is designed as follows.

[Problems to be Solved by the Invention] However, in the work for constructing the work scaffold described above, a large number of supporting materials are driven into the sea level or soft ground, and supporting materials are assembled. Similarly, when constructing temporary embankments, bridge girders, etc. in places with poor footing, supporting materials to support the bridge girders are driven into seawater or soft ground at regular intervals. As a result, the work requires a large amount of materials, labor, and time, resulting in problems such as an increase in the overall cost of the construction work and a longer construction period.

In addition, after the construction is completed, these facilities must be dismantled or left as they are, but when dismantling the facilities, it is difficult to disassemble them quickly and efficiently, and when leaving the facilities unattended, In both cases, there was a problem in that the equipment could not be reused, resulting in wasted honey, and in both cases, the cost was relatively high.

Furthermore, in the above case, it is conceivable to bring a floating boat onto the sea surface or on soft ground and use this floating boat as a scaffold or temporary bridge girder, but if the sea surface is surrounded by land, In the case of a lake, a shallow coast, or soft ground, it is not possible to tow the floating boat to the site, and the floating boat must be transported by land. It was not easy to transport a heavy floating ship to such a place via land, and when the water was shallow, there were problems such as the ship sinking into the ground due to its own weight at low tide. there were.

This invention was devised in view of the above-mentioned problems and to solve the problems, and its purpose is to improve work scaffolding and Floating structures for supporting work, such as bridge girders, are constructed from a connected assembly of ultra-lightweight connecting blocks that are easy to connect and dismantle, and can be constructed and dismantled quickly and easily, while saving excess materials. as little as possible, and
The ultra-lightweight connecting blocks can be used repeatedly by preventing corrosion, are easy to transport, reduce friction with soft ground, and can be easily formed when the corrosion-resistant coating is made of a cement mixture. An object of the present invention is to provide an ultra-lightweight connecting block, a floating structure using the same, and a method of coating the ultra-lightweight connecting block with a corrosion-resistant coating.

[Means for solving problems]

In order to achieve the above object, the ultra-lightweight connecting block according to the present invention is provided by coating the outer surface of the block made of ultra-lightweight material with a corrosion-resistant coating material, and providing a connecting portion for connecting with a separate block of the same type. , the block as a whole has a specific gravity of 1 or less.

The floating structure according to the present invention is constructed by connecting a plurality of ultra-light connecting blocks to form a connected aggregate, and floating it on the sea surface or on soft ground containing a large amount of moisture. It is.

In addition, the floating structure according to the present invention connects a plurality of ultra-light connecting blocks using separate connecting materials to form a connected assembly, and can be used on the sea surface or on soft ground containing a large amount of moisture. It consists of a floating structure.

Here, the bottom surface of the floating structure floating on soft ground may be coated with a material having a small coefficient of friction.

Then, the ultra-lightweight material is inserted into the formwork whose four sides and bottom are covered and the top is open, leaving a slight gap between the four sides and the bottom of the formwork, and then the ultra-lightweight material is Fill the formwork into which the cement mixture has been inserted, and cover the gap between the entire inner surface of the formwork and the ultra-lightweight material, as well as the top surface of the ultra-lightweight material, with the cement mixture.After the cement mixture has hardened, There is a method for coating an ultra-lightweight connecting block with a corrosion-resistant coating, which involves disassembling the formwork into four sides, removing the bottom formwork, and forming a corrosion-resistant coating made of a cement mixture.

Here, the cement mixture is made by mixing cement with other materials and water, and refers to, for example, foamed concrete, foamed mortar, concrete, mortar, and the like.

[Effect]

The present invention having the above configuration operates as follows.

That is, since the outer surface of the block made of ultra-lightweight material is coated with a corrosion-resistant covering material, it acts to prevent the ultra-lightweight material from corroding, and also acts to withstand impact, increasing its service life. work.

In addition, since a connecting part is provided to connect separate blocks of the same type, or a separate connecting material is used to connect them, it is possible to quickly and easily create a connected assembly of ultra-light connecting blocks, and create a floating structure. It functions so that it can be constructed, and it also functions so that it can be dismantled quickly and easily.

Furthermore, since it is a floating structure, it can be used on seawater or soft ground, and the number of supporting members can be reduced.

Furthermore, since the bottom surface of the floating structure is coated with a material having a small coefficient of friction, it acts to make the floating structure easier to slide on soft ground.

Furthermore, since the four sides of the formwork can be disassembled into four directions, it is possible to easily form a coating with a corrosion-resistant coating made of a cement mixture.

〔Example〕

Hereinafter, the present invention will be described in more detail based on embodiments shown in the drawings.

Here, FIG. 1 is a partially cutaway side view of the ultra-lightweight connecting block, and FIG. 2 is a partially cutaway plan view of the ultralightweight connecting block.

In the figure, an ultra-lightweight connecting block 1 has a rectangular parallelepiped shape, and an ultra-lightweight material 2 made of, for example, expanded polystyrene having a specific gravity of 0.02 or more is housed inside. The ultra-lightweight material 2 has a rectangular parallelepiped shape similar to the ultra-lightweight connecting block 1, and the entire large outer surface of the ultra-lightweight material 2 is completely covered with a corrosion-resistant covering material 3. For this reason,
The ultra-lightweight material 2 is prevented from being corroded by this anti-corrosion covering material 3.

The corrosion-resistant covering material 3 includes, for example, foamed concrete, foamed mortar, concrete, cement mixtures such as mortar, or corrosion-resistant metal materials, vinyl materials, plastic materials, FRP materials, durable resin materials, rubber materials, and wood. The key is to use a material that has a corrosion-resistant function. Further, it is preferable to use a material that is as lightweight as possible and has strength to withstand a predetermined external force. For this reason, if necessary, a reinforcing material, such as a reinforcing material such as a reinforcing bar, is placed in the anti-corrosion covering material 3, such as reinforcing material in the cement mixture. When the material used is, for example, a corrosion-resistant metal material, vinyl material, plastic material, FRP material, durable resin material, rubber material, or wood, the corrosion-resistant covering material 3 is applied to the outer surface of the ultra-light material 2 using an adhesive. is glued to.

The ultra-light connecting block l has ultra-light material 2 arranged inside,
A corrosion-resistant covering material 3 is placed on the outer surface of the block, but the specific gravity of the entire ultra-lightweight connecting block 1 is always 1 or less.
The relationship between the volume and specific gravity of the ultra-lightweight material 2 and the volume and specific gravity of the corrosion-resistant covering material 3 is taken into consideration.

A connecting portion 4 for connecting to a separate ultra-lightweight connecting block 1 is provided on the outer surface of the ultra-lightweight connecting block 1. The connecting portions 4 are fixedly provided on angle members placed at the upper and lower edges of the ultra-lightweight connecting block 1. In the drawings, the connecting portions 4 are provided on both the left and right upper and lower edges, respectively, facing in the left-right direction, and are provided so that they can be connected to the separate ultra-lightweight connecting blocks 1 placed on both the left and right sides.

A circular or oval hole 4a is formed in the center of this connecting portion 4, and this hole 4a is connected to a hole 4a of an adjacent separate connecting portion 4.
The structure is such that the ultra-lightweight connecting blocks 1 are connected to each other by inserting bolts (not shown) and connecting the reconnecting parts 4 to each other. Since a large load acts on the connecting portion 4 during connection, a steel material or the like having a predetermined strength and rigidity is used for the connecting portion 4.

FIG. 3 is a sectional view of the connecting portion of another embodiment, and FIG. 4 is a side view of the connecting portion of another embodiment.

The connecting portion 5 shown in FIG. 3 consists of a bolt 5a, a connecting rod 5b, and a pad 5C. The base end side of the bolt 5a is buried in the side surface of the ultra-lightweight connecting block 1, and the base end side of the connecting rod 5b is also buried in the adjacent separate ultra-lightweight connecting block 1.
It is buried in the side of. A screw is engraved on the side circumferential surface on the tip side of the pole) 5a. Further, a Nand 5C is externally wrapped on the tip end side of the connecting rod 5b.

That is, a hole slightly larger than the outer diameter of the connecting rod 5b is formed in the center of the NAND 5C, and the tip side of the connecting rod 5b is inserted through this hole. The outer diameter of the tip of the connecting rod 5b is formed slightly larger than the hole of the nut 5c.
c is designed so that the connecting rod 5b cannot be pulled out. Further, the inner circumferential surface of the nut 5C is provided with a thread that engages with the thread of the bolt 5a, so that the bolt 5a and the nut 5C are threaded together. And Pol) 5a
When the nuts 5c and 5c are screwed together, adjacent ultra-lightweight connecting blocks 1 are connected to each other.

The connecting portion 6 shown in FIG. 4 consists of two rings 6a and 6b. The rings 6a and 6b are provided on the side surface of each ultra-lightweight connecting block 1 at different angles of 90 degrees. That is, the ring 6a is provided horizontally, and the ring 6b is provided vertically. The ring 6a is mounted so that it can swing vertically, and the ring 6b is mounted so that it can swing horizontally. In addition, the ring 6b is an opening/closing screw 6.
By turning C left and right, it can be opened and closed in the vertical direction, and the ring 6a can be placed inside the ring 6b. Then, by putting the ring 6a inside the ring 6b, both rings 6a,
6b are connected, and adjacent ultra-lightweight connecting blocks 1 are connected to each other.

Since the connecting portion 6 is connected by connecting the rings 6a and 6a, this connecting portion is a pin connection, and usually twisting and bending moments can be prevented from occurring.

・Figure 5 is a front view of a separate connecting member.

The connecting member 7 is made of an elongated angle member with a cross-sectional shape, and connecting holes for connecting with the ultra-lightweight connecting block 1 are formed at predetermined intervals in the connecting member 7. The proximal end or the distal end of the buried bolt is inserted into the connecting block 1, and the nut 7a is screwed onto the distal end of the bolt inserted through the connecting hole, and the nut 7a is tightened by force. 7 is integrally attached to the ultra-lightweight connecting block 1, and the connecting members 7 connect the ultra-lightweight connecting blocks 1 to each other. In FIG. 5, the connecting member 7
is attached to the upper end of the ultra-lightweight connecting block 1, but it may of course be attached to the lower end of the ultra-lightweight connecting block 1.

In addition, to disassemble it, loosen all the nuts 7a, pull out each nut 7a from the tip of the bolt, and then remove the connecting member 7a.
By simply removing the bolts from the bolts, the connected state of each ultra-lightweight connecting block 1 is released, that is, it is disassembled.

FIG. 6 is a perspective view of the floating structure.

The floating structure 8 is composed of a connected assembly of a large number of ultra-lightweight connecting blocks 1. The floating structure 8 shown in FIG. 6 has ultra-lightweight connecting blocks 1 connected to each other in the left-right, front-back, and up-down directions. Each ultra-lightweight connecting block 1 has communicating holes for connecting at the same positions in the left-right, front-back, and up-down directions, and a high tension Caviano wire is inserted through each of the communicating holes on the same extension line. Both ends of the high tensile caviano wires protruding from the ultra-lightweight connecting blocks 1 located at the edges are tightened with nuts to connect the ultra-lightweight connecting blocks 1 to construct a floating structure 8.

Furthermore, disassembly, that is, disconnection of the floating structure 8, can be accomplished by simply removing the NAND that was tightening the high-tension Caviano wire and pulling out the high-tension Caviano wire from the communication hole. After that, the floating structure 8 is dismantled by simply pulling out each ultra-lightweight connecting block 1.

Figure 7 is a side view of the floating structure on the sea surface, and Figure 8 is a side view of the floating structure on the sea surface.
The figure is a side sectional view of a floating structure on soft ground.

Since the floating structure 8 has a specific gravity smaller than that of seawater, the floating structure 8 can always float on the seawater surface, and there is no need to support the floating structure 8 from underwater.

Similarly, the floating structure 8 placed on the soft ground also has a small specific gravity and can float on the soft ground. In this case, when the floating structure 8 is placed on the soft ground, the specific gravity of the floating structure 8 is determined in consideration of the discharge amount of water contained in the soft ground.

Further, the bottom surface of the floating structure 8 placed on the soft ground is coated with a material 8a having a small friction coefficient so as to reduce the frictional resistance with the soft ground. When moving the floating structure 8 on soft ground, the motive power required to move the floating structure 8 is reduced so that the floating structure 8 can be moved smoothly.

FIG. 9 is a perspective view of a mold for forming a corrosion-resistant coating, and FIG. 10 is a sectional view of the mold for forming a corrosion-resistant coating.

In FIGS. 9 and 10, a cement mixture is used as the corrosion-protective coating 3. In FIGS.

The corrosion-resistant covering material 3 is made of a cement mixture such as foamed concrete, foamed mortar, concrete, and mortar.
The entire outer surface of the ultra-lightweight material 2 is coated in the following manner.

That is, first, the formwork 9 is assembled, with the four sides 9a... and the bottom surface 9b covered and the top open. The formwork 9 consists of four formworks forming the side surfaces 9a and one formwork forming the bottom surface 9b. That is, the formwork 9 can be disassembled into five pieces in total. As shown in FIG. 9, the five formworks are connected at their four corners and bottoms with bolts or the like to form a formwork 9.

After forming the formwork 9, the ultra-lightweight material 2 is inserted from the open upper surface of the formwork 9, and the entire outer surface of the ultra-lightweight material 2 is covered with reinforcing material such as wire mesh or reinforcing bars. 3a is installed.

``The reinforcing material 3a may be omitted if necessary.

When inserting the ultra-light material 2 into the formwork 9, care is taken to ensure that the gap between the side surface of the ultra-light material 2 and the inner surface of the formwork 9 is approximately equal throughout the entire outer surface of the ultra-light material 2. . After inserting the ultra-lightweight material 2 into the formwork 9, a liquid cement mixture as the corrosion-resistant coating 3 is filled from the open upper surface of the formwork 9.

When filling the cement mixture, fill the formwork 9 with the cement mixture while taking care to ensure that the gap between the side surface of the ultra-lightweight material 2 and the inner surface of the formwork 9 is completely filled with the cement mixture. . After filling with the cement mixture is completed, the surface of the cement mixture on the open upper side of the formwork 9 is finished to a uniform flat surface with no irregularities using a trowel or the like.

Thereafter, the cement mixture is cured for a certain period of time, and after the cement mixture has hardened and reached a predetermined strength, dismantling of the formwork 9 is started. Adjacent formwork was connected with bolts, and all bolts were removed. After that, formwork 9
Remove the four sides 9a... In this case, the formwork 9 on the four sides 9a... can be easily removed, making the work very simple. Finally, the bottom surface 9b can be removed to construct the ultra-lightweight connecting block 1 coated with cement mixture.

It should be noted that this invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the spirit of the invention.

For example, in the above embodiment, the ultra-lightweight connecting blocks 1 are described as having a rectangular parallelepiped shape, but the shape is not limited to this, and any shape that allows adjacent ultra-lightweight connecting blocks 1 to be easily connected to each other may be used. For example, it can be of any shape.

Similarly, the connection structure for connecting the ultra-lightweight connection blocks 1 is not limited to the one described above, and any structure may be used as long as it allows adjacent ultra-lightweight connection blocks 1 to be easily connected to each other. But that's fine.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, an ultra-lightweight connecting block that can easily connect and dismantle floating structures for supporting work, such as work scaffolding and bridge girders, constructed on the sea surface or on soft ground. Since it is constructed from a floating structure consisting of a connected assembly of can. In this way, the floating structure for work assistance can be constructed and dismantled quickly and easily, so that the construction period can be shortened.

Moreover, the floating structure for work assistance is a connected assembly of ultra-lightweight connecting blocks with low specific gravity that floats on the sea surface or on soft ground, so unlike conventional work support structures, it is Extra materials and construction costs, such as supporting materials above sea level or on soft ground, can be minimized as much as possible. In addition, since the outer surface of the ultra-light connecting blocks is coated with a corrosion-resistant coating, it is possible to prevent the ultra-light connecting blocks from being corroded by seawater or substances in soft ground, increasing the durability of the ultra-light connecting blocks. It is possible to increase the number of years of use and the number of times of repeated use after disassembly. These allow for significant savings in materials and lower costs.

In addition, the work-assistance floating structure can be dismantled into the size of a single ultra-light connecting block, making it easy to transport and transporting it to places where it would be difficult to transport it conventionally.
This makes it possible to significantly expand the range of use.

In addition, since the bottom surface of the floating structure for work assistance is covered with a material with low frictional resistance, the friction between the bottom surface of the floating structure and the soft ground can be reduced, making it possible to move the floating structure for work support on soft ground. can be carried out smoothly, and the power energy required to move the work-assisting floating structure can be reduced.

Furthermore, when the corrosion-resistant coating for the ultra-lightweight connecting block is made of a cement mixture, the formwork can be disassembled into four sides after hardening, making it extremely easy to coat the outer surface of the ultra-lightweight material with the corrosion-resistant coating. It has extremely novel and beneficial effects, such as the ability to

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway side view of an ultra-lightweight connecting block, FIG. 2 is a partially cutaway plan view of the ultralightweight connecting block, and FIG. The figure is a sectional view of a connecting part of another embodiment, FIG. 4 is a side view of a connecting part of another embodiment, FIG. 5 is a front view of a separate connecting member, and FIG. 6 is a perspective view of a floating structure. Figure 7 is a side view of the floating structure on the sea surface, Figure 8 is a side sectional view of the floating structure on soft ground, Figure 9 is a perspective view of the formwork for forming the corrosion-resistant coating, and Figure 7 is a side view of the floating structure on the sea surface. FIG. 10 is a sectional view of a mold for forming a corrosion-resistant coating. [Explanation of symbols] 1: Ultra-light connecting block 2: Ultra-light material 3: Corrosion-proof covering material 4.5, 6: Connecting portion 7: Connecting material 8: Floating structure 9: Formwork patent applicant Taiyo Gijutsu Kaihatsu Co., Ltd. Agent Patent Attorney Tadashi Harasaki Figure 1 Figure 3 Figure 2 Figure 4 ] Figure 10 9b Procedural Amendment Law) March 22, 1988 1, Marking of Meigyu 1988 Patent Application No. 9328 No. 2,
Title of the invention: Ultra-light connecting blocks, floating structures using the same, and method for coating ultra-light connecting blocks with anti-corrosion coating material 3, dealing with the person who makes the corrections Patent applicant address: Nagasaki City, Nagasaki Prefecture 9-9 Ieno-cho Name Taiyo Gijutsu Kaihatsu Co., Ltd. 4, IA Koko 1mi, ^, ■850 Address 7-23 Ebisucho, Nagasaki City (Voluntary 6, Subject of amendment (1) Specification No. The phrase "by coating, a floating structure" on page 8, line 14 is amended to "by coating, a floating structure". (2) Specification, page 8, lines 17-1 In line 18, "cement...can be easily done" is corrected to "The formwork can be used repeatedly." Before “of”,
Insert "adjacent left and right, front and back, or/and vertically." (4) Insert "left and right, front and back, or/and above and below" before "adjacent" on page 12, line 9 of the specification. (5) Before “adjacent” on page 13, line 4 of the specification,
Insert "left/right, front/back, or/and top/bottom". (6) On page 15, lines 18 to 19 of the specification, the phrase “taking into consideration the amount of water discharged from the soft ground” has been replaced with “the amount of subsidence in the soft ground and the amount of water contained in the soft ground.” Taking into account the supporting capacity,” the correction was made. (7) Before "adjacent" on page 18, line 17 of the specification, insert "j" on the left and right, front and back, or/and top and bottom. (8) Insert "j" on page 19, line 2 of the specification, Before "adjacent"
``Insert J on the left and right, front and rear, or/and top and bottom.'' Block 1 for
Of course, they can be connected in the left and right, front and rear, and/or up and down directions. ” is inserted. that's all

Claims (1)

[Scope of Claims] 1. The outer surface of the block made of ultra-lightweight material is coated with a corrosion-resistant coating, a connecting part is provided to connect it to a separate block of the same type, and the specific gravity of the block as a whole is set to 1 or less. An ultra-lightweight connecting block featuring: 2. A floating structure in which a plurality of ultra-light connecting blocks according to claim 1 are connected to form a connected assembly, and the floating structure is floated on the sea surface or on soft ground containing a large amount of water. 3. A floating structure in which a plurality of ultra-light connecting blocks according to claim 1 are connected by separate connecting members to form a connected aggregate, and floated on the sea surface or on soft ground containing a large amount of moisture. thing. 4. A floating structure floating on soft ground whose bottom surface is coated with a material with a low coefficient of friction. 5. Insert the ultra-lightweight material into a formwork whose four sides and bottom are covered and whose top is open, leaving a slight gap between the four sides and the bottom of the formwork, and then insert the ultralight material Fill the formwork into which the cement mixture has been inserted, and cover the gap between the entire inner surface of the formwork and the ultra-lightweight material, as well as the top surface of the ultra-lightweight material, with the cement mixture.After the cement mixture has hardened, A method for covering an ultra-lightweight connecting block with a corrosion-resistant covering material, which comprises disassembling the formwork into four sides, removing the bottom formwork, and forming a corrosion-resistant covering material made of a cement mixture.