JP2013060777A - Interconnected top type block structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide top type block structure such that a part of a top type block is not inclined or free of uneven settlement.SOLUTION: A top type block structure comprises a plurality of top type blocks 10 each constituted by providing a conic or pyramidal shell 13 under a flat upper disk 11, and then providing a columnar or prismatic shaft leg 14 in a lower center part of the shell, and a lattice type member 20 constituted by rod-like members, and configured to prevent the plurality of top type blocks from being mutually dispersed by arranging the plurality of top type blocks in respective lattice squares of the lattice type member, and fitting vertical rod-like members 22 and horizontal rod-like members 21 of the lattice member in circular grooves 15 provided in side faces of flat upper disks of the top type blocks.

Description

  The present invention relates to a block-type block structure used to stabilize soft ground in foundation works for construction and civil engineering. More specifically, the present invention relates to wave-dissipation by continuously burying in a sandy beach. The present invention relates to a block type block structure that can be used as a solidifying block.

When a building or a structure is built on soft ground, there is a risk that uneven subsidence may occur in the surface layer due to changes over time, and it is necessary to stabilize the surface layer. As a general stabilization method, a method is adopted in which aggregate and gravel are put into the excavation part of the target ground and compacted, and then concrete is cast to a required thickness to fix the ground.
However, in such a foundation structure with concrete placement, depending on the degree of softness of the target ground, a large amount of aggregate, gravel and concrete may be required, and pile work may also be required. There was a problem that the cost increased and the construction period became longer.

As a ground stabilization method that replaces the foundation structure by placing concrete, a foundation structure by laying a top block has been proposed (Japanese Patent Publication No. 56-50054).
The top block is provided with a cone-shaped or pyramid-shaped body at the lower part of the flat upper platen, and a columnar or prismatic shaft leg at the center of the lower part of the body, and is integrally molded with concrete. A large number of coma blocks used as the basic structural unit according to the area of the target ground are arranged vertically and horizontally in the excavation part of the target ground, with the flat upper panels in close contact with each other. Filling materials such as gravel and crushed stone may be filled.

In the basic structure of this block type block, the total weight of the block type block itself, the load of the building or structure loaded on the flat upper plate, the ground reaction force and frictional resistance generated on the body and shaft legs of the block type block It balances the force and exerts the horizontal ground strength without uneven settlement.

  On the other hand, taking advantage of the feature of such a block-type block, a method has been devised in which the block-type block is continuously embedded in a sandy beach and used as a foundation for wave-dissipating blocks. By using the top block in this way, the vertical component of the ground reaction force is diverted to the buoyancy to prevent subsidence on each body surface, and the horizontal component of the ground reaction force cancels each other. This has the effect of preventing the sinking of the wave-dissipating block or the like by the ground stabilizing action.

  In other words, the wave-dissipating block placed on the flat top of the top block has a top leg that bites into the sand and the top block floats even when a dynamic external force acts on the wave. Because of rock formation, it was possible to prevent the sinking of the wave-dissipating block placed on the flat upper board.

Japanese Patent Publication No. 56-50054

  However, even if it is a coma block that has such an effective effect, if it is installed adjacent to a sandy beach, for example, a part of the coma block that is installed is inclined or unevenly subsidized. There was also a cause. In this way, if a part of the block type block is inclined or uneven sinking occurs, the wave-dissipating block placed on the flat top plate of the top block will fall off the flat top plate. Or the arrangement of the wave-dissipating blocks stacked on the flat upper board is disturbed.

In order to solve the problem as described above, in the invention described in claim 1,
A plurality of coma blocks having a cone-shaped or pyramid-shaped body at the bottom of the flat upper platen, and a columnar or prismatic shaft leg at the lower center of the body;
In order to prevent the plurality of top blocks from being separated from each other by disposing the plurality of top blocks in each lattice of the lattice member. A lattice member of
In an interconnected top block structure consisting of
An annular groove is provided on the side surface of the flat upper plate of the top block,
It was set as the top block structure of the structure arrange | positioned so that the vertical direction bar-shaped member and horizontal direction bar-shaped member of the said grid | lattice-like member might fit in the said annular | circular shaped groove | channel.

In the invention described in claim 2,
The top block structure according to claim 1, wherein a top through hole is provided in a central portion of the top block, and a center rod is inserted into the top through hole. A block structure was obtained.

In the invention described in claim 3,
3. The top block structure according to claim 1 or 2, wherein a flat upper panel of the plurality of top blocks is provided with a mooring point for fixing a tension member that attracts the top blocks to each other. It was set as the frame type block structure of the structure.

Furthermore, in the invention described in claim 4,
4. The top block structure according to claim 1, wherein at least two of the annular grooves provided on the side surface of the flat upper plate of the top block are provided in the vertical direction. The top-shaped block structure has a structure in which the vertical bar-shaped member of the grid-shaped member is fitted in one of the grooves, and the horizontal bar-shaped member of the grid-shaped member is fitted in the other groove. .

In the invention described in claim 5,
5. The top block structure according to any one of claims 1 to 4, wherein an annular concavo-convex in which the top blocks are engaged with each other is provided on a side surface of the flat upper plate of the top block. A coma block structure having a structure was obtained.

In the invention described in claim 6,
A plurality of coma blocks having a cone-shaped or pyramid-shaped body at the bottom of the flat upper platen, and a columnar or prismatic shaft leg at the lower center of the body;
It consists of a connecting bracket that connects the plurality of top-shaped blocks to each other,
The connection fitting consists of an anchor bolt and a connection shaft,
The anchor bolt has an annular end portion at one end and a fixing portion at the other end, the fixing portion is embedded in the concrete of the top block, and the annular end portion is a corner portion of the flat upper plate. It is installed so as to protrude diagonally upward,
After placing a plurality of top blocks with anchor bolts so that the anchor bolts of adjacent top blocks overlap each other, pass through the connecting shaft into the annular end of each anchor bolt and fix it It was set as the block type | mold block structure connected with the structure mutually.

  By adopting the top block structure having the structure described in claim 1, the vertical bar member and the horizontal bar member of the lattice member are formed in the annular groove provided on the side surface of the flat upper plate of the top block. Since the vertical loads generated between the adjacent block-type blocks can be supported by each other, uneven settlement of the plurality of frame-type blocks can be prevented.

In addition, since the vertical bar member and the horizontal bar member of the lattice member are configured to hold the side surfaces of the flat upper panels of the adjacent top block blocks so as not to be separated from each other, It becomes possible to prevent a part from inclining.
By adopting the top block structure having the structure described in claim 2, it is possible to prevent the center rod inserted into the upper and lower through holes from being driven deep into the ground and tilting the top block. .

  By adopting the block-shaped block structure having the configuration described in claim 3, in addition to the operational effects of the block-shaped block structure having the configuration described in claim 1 or 2, the flat top of a plurality of block-shaped blocks is provided. The board is provided with mooring points for fixing the tension members that attract the coma blocks to each other, so when laying the coma blocks, the tension members are placed at the mooring points, This has the effect that the grid-like member can be installed after the blocks are correctly aligned. Also, by leaving the tension member used when laying as it is, the vertical bar member and the horizontal bar member of the grid member are held so that the side surfaces of the flat top plate of each adjacent block block are not separated from each other. It is possible to reinforce the force to be applied, and it is possible to prevent a part of the top block from being inclined.

By adopting the block type block structure having the structure described in claim 4, at least two annular grooves provided on the side surface of the flat upper plate of the block type block are provided in the vertical direction. A vertical bar-shaped member of a grid-like member is fitted in one of the grooves, and a horizontal bar-like member of the grid-like member is fitted in the other groove. The ability to support directional loads with each other is improved, and it is possible to further prevent uneven settlement of a plurality of top blocks.

By adopting the block type block structure having the structure described in claim 5, the side surface of the flat upper plate of the block type block is provided with an annular unevenness in which the block type blocks are engaged with each other, In addition to the lattice-shaped member, the vertical load generated between each adjacent block block can be transmitted to the annular uneven portion where the block blocks are engaged with each other. It becomes possible to further prevent uneven settlement of the block.

By adopting the top block structure having the structure described in claim 6, a plurality of adjacent top blocks can be connected and fixed to each other using a connecting bracket. Since vertical loads generated in the two can be supported with each other, it is possible to prevent uneven settlement of the plurality of top blocks.

FIG. 1 is a plan view and a front view of an interconnected frame type block structure according to a first embodiment of the present invention. FIGS. 2A and 2B are a plan view and a front view of an interconnected frame type block structure according to a second embodiment of the present invention. FIGS. 3A and 3B are a plan view and a front view of an interconnected frame type block structure according to a third embodiment of the present invention. FIGS. 4A and 4B are a plan view and a front view of an interconnected frame-type block structure according to a fourth embodiment of the present invention. FIG. 5 shows a plan view and a front view of an interconnected frame type block structure according to a fifth embodiment of the present invention. FIGS. 6A and 6B are a plan view and a front view of an interconnected frame type block structure according to a sixth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a plan view and a front view of an interconnected frame type block structure according to a first embodiment of the present invention. The mutually connected piece type block structure according to the first embodiment is composed of a plurality of piece type blocks 10 and a lattice member 20.

The top block 10 includes a flat upper plate 11, a side surface 12 of the flat upper plate, a body 13, and a shaft leg 14.
The flat upper board 11 may be circular as shown in FIG. 1 or may be polygonal. The flat upper plate 11 can be set to an arbitrary thickness, and a portion corresponding to the thickness is formed as a side surface 12 of the flat upper plate.
The body 13 is provided in the lower part of a flat upper board, and may be a cone shape as shown in FIG. 1 or a pyramid shape.

The shaft leg 14 is provided at the lower center portion of the body and has either a cylindrical shape or a prismatic shape.
The top block 10 is made of concrete, and the flat upper plate 11, the side surface 12 of the flat upper plate, the body 13, and the shaft leg 14 can be integrally formed. The shaft legs 14 may be divided and molded, and these may be formed by assembling them.

The grid member 20 is configured by orthogonally crossing a plurality of horizontal bar-shaped members 21 and a plurality of vertical bar-shaped members 22 in a grid pattern, and includes a plurality of horizontal bar-shaped members 21 and a plurality of vertical bar-shaped members 22. A joint member 23 that connects the two is disposed at the intersection.
A solid or hollow bar-shaped material can be used as the horizontal bar-shaped member 21 and the vertical bar-shaped member 22 of the lattice-shaped member 20. The cross-sectional shape of each bar-shaped member is not particularly limited, and any shape such as a round shape, a quadrangular shape, or a polygonal shape can be used.

Further, the material of each rod-shaped member is not particularly limited, but materials such as steel and fiber reinforced plastic can be used. However, when exposed to a corrosive environment such as a coast, corrosion resistance It is desirable to use a certain material or a material subjected to a corrosion-resistant surface treatment.

In the mutually connected piece block structure according to the first embodiment of the present invention shown in FIG. 1, the side surface 12 of the flat upper plate of the piece block 10 has a lattice shape as shown in FIG. The horizontal bar-shaped member 21 and the vertical bar-shaped member 22 of the member 20 are fitted, and the groove 15 is provided with a depth enough to allow about half of the cross section of the horizontal bar-shaped member 21 and the vertical bar-shaped member 22 to enter. Yes. The groove 15 is provided on the side surface 12 of the flat upper plate over the entire circumference of the top block 10.

  In the block-type block structure having such a configuration, as described above, the joint member 23 that connects the plurality of horizontal bar-shaped members 21 and the plurality of vertical bar-shaped members 22 is arranged at the intersections. Therefore, the vertical bar-shaped member 22 and the horizontal bar-shaped member 21 of the lattice-shaped member can be held so that the side surfaces 12 of the flat upper plates of the adjacent top blocks 10 are not separated from each other. It is possible to prevent a part of the top block 10 from being inclined.

Further, since about half of the cross section of the horizontal bar member 21 and the vertical bar member 22 enters the groove 15 of the adjacent top block 10, the adjacent top block 10 may be displaced in the vertical direction. Since the horizontal bar-shaped member 21 or the vertical bar-shaped member 22 can transmit the force to be applied, that is, the shearing force, it is possible to prevent the adjacent top blocks 10 from being displaced in the vertical direction. In other words, the horizontal bar-shaped member 21 and the vertical bar-shaped member 22 can support the vertical loads generated between the adjacent block-shaped blocks, thereby preventing uneven settlement of a plurality of the block-shaped blocks. It becomes possible.

Next, a second embodiment of the present invention will be described in detail. FIG. 2 shows a plan view and a front view of an interconnected frame-type block structure according to a second embodiment of the present invention. The mutually connected piece type block structure according to the second embodiment is different from the piece piece connected block structure according to the first embodiment in the central part of the piece type block 10. The upper and lower through holes 19 are provided, and the center rod 31 is inserted into the upper and lower through holes 19.

The center rod 31 has a function of preventing the top block 10 from tilting when the top block 10 is installed in the ground, and a solid or hollow rod-shaped material may be used. it can. The cross-sectional shape of each bar-shaped member is not particularly limited, and any shape such as a round shape, a quadrangular shape, or a polygonal shape can be used. Further, the material of each rod-shaped member is not particularly limited, but materials such as steel and fiber reinforced plastic can be used. However, when exposed to a corrosive environment such as a coast, corrosion resistance It is desirable to use a certain material or a material subjected to a corrosion-resistant surface treatment.

Next, a third embodiment of the present invention will be described in detail. FIG. 3 shows a plan view and a front view of an interconnected piece-type block structure according to a third embodiment of the present invention. The mutually connected piece block structures according to the third embodiment are different from the mutually connected piece block structures according to the first embodiment in that the plurality of piece blocks 10 are flat. The board 11 is provided with a mooring point 17 for fixing a tension member 16 that attracts the top blocks 10 to each other. Only differences from the top block structure according to the first embodiment will be described below.

  The mooring point 17 for fixing the tension member 16 provided on the upper surface of the flat upper plate 11 of the top block 10 according to the third embodiment is a metal fitting embedded in the top block 10 or the top block 10. It can be a through hole provided directly on the surface. In other words, any member can be selected as long as the tension member 16 described later can be firmly anchored.

  The mooring point 17 may be installed at any position as long as it is the upper surface of the flat upper panel 11. However, the tension member 16 is fixed to the mooring point 17, and the adjacent top block 10 is moved by the tension member 16. In order to attract each other, a position where each piece block 10 does not cause rotational movement when applying tension to the tension member 16 is desirable. There are many arrangements of the mooring points 17 that satisfy such conditions. As an example, the mooring points 17 are close to the center of the flat upper plate 11 of each of the block-type blocks 10 and the upper and lower through holes 19 are avoided. Can be provided in position. In such an arrangement, the tension members 16 are arranged between a plurality of, for example, four adjacent piece-shaped blocks 10 by providing only one mooring point 17 in each piece-shaped block 10. Is possible.

  A tension member 16 is fixed to the mooring point 17 so as to attract the top blocks 10 to each other. The tension member 16 may be any member that can apply tension, such as a steel rod or steel wire, and a turn buckle 18 for applying tension to the tension member 16 in the middle of the tension member 16. May be arranged.

The tension member 16 may be used only when the top block 10 is laid, or the tension member used when laying may be left as it is.
When laying the top block 10, the tension member 16 is disposed at the mooring point 17, and the tension is applied so that the top blocks 10 are attracted to each other by the turn buckle 18 or other means installed on the tension member 16. And the lattice-shaped member 20 can be installed after the top blocks 10 are correctly aligned.

Further, by leaving the tension member 16 used when laying the top block 10 as it is, the vertical bar member 22 and the horizontal bar member 21 of the lattice-like member 20 become flat on the adjacent top block 10. It is possible to reinforce the holding force so that the side surfaces 12 of the board 11 are not separated from each other, and it is possible to prevent a part of the top block 10 from being inclined.

Next, a fourth embodiment of the present invention will be described in detail. FIG. 4 shows a plan view and a front view of an interconnected frame type block structure according to a fourth embodiment of the present invention.
The mutually connected piece block structures according to the fourth embodiment are different from the piece block structures according to the first embodiment in that the flat upper plate 11 of the piece block 10 is the same. At least two annular grooves 15 provided in the side surface 12 are provided in the vertical direction, and one of the grooves 15 is fitted with the vertical bar-shaped member 22 of the lattice-like member 20, and the other groove 15. Is that the horizontal bar-like member 21 of the lattice-like member 20 is fitted.

  Thus, each of the horizontal bar-shaped member 21 and the vertical bar-shaped member 22 is adjacent to the upper and lower two grooves 15 of the top block 10 in which about half of the cross section of the member is adjacent to each other. Since the top block 10 can transmit a force for shifting the top block 10 in the vertical direction, that is, a shearing force, in each of the horizontal bar member 21 and the vertical bar member 22, it is more than the first embodiment. Further, it is possible to prevent the adjacent block-type blocks 10 from shifting in the vertical direction. In other words, each of the horizontal bar-shaped member 21 and the vertical bar-shaped member 22 can support the vertical load generated between the adjacent block-shaped blocks, so that the plurality of the block-shaped blocks are not connected. It is possible to further prevent equal settlement.

Next, a fifth embodiment of the present invention will be described in detail. FIG. 5 shows a plan view and a front view of an interconnected frame-type block structure according to a fifth embodiment of the present invention.
The mutually connected piece block structures according to the fifth embodiment are different from the piece block structures according to the first embodiment in that the flat upper plate 11 of the piece block 10 is the same. In addition to the annular groove 15, the side surface 12 is provided with an annular irregularity 41 in which the top blocks 10 are engaged with each other.

In this way, since the side surface 12 of the flat upper plate 11 of the top block 10 is provided with the annular unevenness 41 in which the adjacent top blocks 10 are engaged with each other, the top top of each top block 10 is flat. By laying so that the side surfaces 12 of the board 11 are in contact with each other, the annular irregularities 41 of the adjacent top blocks 10 are engaged with each other, and the adjacent top blocks 10 tend to be displaced in the vertical direction. Since the annular unevenness 41 transmits the force, that is, the shearing force, it is possible to further prevent the adjacent top blocks 10 from being displaced in the vertical direction as compared with the first embodiment. ing. In other words, since the annular irregularities 41 can support the vertical loads generated between the adjacent top blocks, it is possible to further prevent uneven settlement of the plurality of top blocks. .

FIG. 6 shows a plan view and a front view of an interconnected frame-type block structure according to a sixth embodiment of the present invention. The mutually connected piece type block structure according to the sixth embodiment is different from the mutually connected piece type block structure according to the first embodiment in that a connecting metal fitting is used instead of the lattice member 20. 50 is used.

  The plurality of top blocks 10 in the sixth embodiment, like the top block 10 according to the first embodiment, are a flat upper plate 11, a side surface 12 of the flat upper plate, a body 13, and a shaft leg 14. It is composed of In the top block 10 according to the first embodiment, the groove 15 into which the horizontal bar member 21 and the vertical bar member 22 of the lattice member 20 can be fitted is provided. Such a groove 15 is not provided in the top block 10 in the example.

  The connection fitting 50 in the sixth embodiment is composed of an anchor bolt 51 having an annular end 51a and a connection shaft 52 provided with a fastener 52a.

  The anchor bolt 51 has an annular end portion 51a at one end and an L-shaped fixing portion 51b at the other end. When the top block 10 is molded, the L-shaped fixing portion 51b is a top piece. The annular end 51a is embedded in the concrete of the mold block 10 so as to protrude obliquely above the corner of the flat upper platen 11, as shown in FIG. And the anchor bolt 51 is provided in the outer edge divided into 4 equal parts of the flat upper board 11, for example. Here, the fixing portion 51b has been described as being L-shaped, but the shape of the fixing portion 51b is not limited to the L-shape, and other shapes can be used as long as the anchor effect can be enhanced. It may be.

  Thus, after arranging the plurality of top blocks 10 having the anchor bolts 51 so that the annular ends 51a of the anchor bolts 51 of the adjacent top blocks 10 overlap each other, the circles of the anchor bolts 51 are arranged. The adjacent top blocks 10 are connected and fixed to each other by passing the connecting shaft 52 into the annular end 51 a and attaching the fastener 52 a to the connecting shaft 52.

  In this way, by connecting and fixing a plurality of adjacent piece-shaped blocks 10 to each other using the connecting fitting 50, a force that causes the adjacent piece-shaped blocks 10 to shift in the vertical direction, that is, a shearing force, is applied to the connecting fitting 50. Therefore, it is possible to prevent the adjacent block-type blocks 10 from shifting in the vertical direction. In other words, since the connecting metal fitting 50 can support the vertical loads generated between the adjacent top-shaped blocks, it is possible to prevent uneven settlement of the plurality of top-shaped blocks.

DESCRIPTION OF SYMBOLS 10 Top block 11 Flat top board 12 Side surface 13 Body 14 Axle leg 15 Groove 16 Tension member 17 Mooring point 18 Turn buckle 19 Vertical through-hole 20 Grid-like member 21 Lateral bar-shaped member 22 Vertical bar-shaped member 23 Joint member 31 Center Rod 41 Annular unevenness 50 Connecting bracket 51 Anchor bolt 52 Connecting shaft

Claims (6)

A plurality of coma blocks having a cone-shaped or pyramid-shaped body at the bottom of the flat upper platen, and a columnar or prismatic shaft leg at the lower center of the body;
In order to prevent the plurality of top blocks from being separated from each other by disposing the plurality of top blocks in each lattice of the lattice member. A lattice member of
In an interconnected top block structure consisting of
An annular groove is provided on the side surface of the flat upper plate of the top block,
A top block structure in which a vertical bar member and a horizontal bar member of the lattice member are arranged so as to fit in the annular groove.   2. The top block structure according to claim 1, wherein a vertical through hole is provided in a central portion of the top block, and a center rod is inserted into the vertical through hole. A block-type block structure.   3. The top block structure according to claim 1, wherein a flat upper panel of the plurality of top blocks is provided with a mooring point for fixing a tension member that attracts the top blocks to each other. A block-type block structure characterized by that.   4. The top block structure according to claim 1, wherein at least two of the annular grooves provided on the side surface of the flat upper plate of the top block are provided in the vertical direction. A top block structure in which a longitudinal bar-shaped member of the lattice-shaped member is fitted in one of the grooves, and a horizontal bar-shaped member of the lattice-shaped member is fitted in the other groove. body. 5. The top block structure according to any one of claims 1 to 4, wherein an annular concavo-convex in which the top blocks are engaged with each other is provided on a side surface of the flat upper plate of the top block. A block-type block structure characterized by that. A plurality of coma blocks having a cone-shaped or pyramid-shaped body at the bottom of the flat upper platen, and a columnar or prismatic shaft leg at the lower center of the body;
It consists of a connecting bracket that connects the plurality of top-shaped blocks to each other,
The connection fitting consists of an anchor bolt and a connection shaft,
The anchor bolt has an annular end portion at one end and a fixing portion at the other end, the fixing portion is embedded in the concrete of the top block, and the annular end portion is a corner portion of the flat upper plate. It is installed so as to protrude diagonally upward,
After placing a plurality of top blocks with anchor bolts so that the annular ends of the anchor bolts of adjacent top blocks overlap each other, insert the connecting shaft into the annular end of each anchor bolt. An interconnected piece-type block structure characterized by penetrating and fixing.

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