JPH0492Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a large connecting block for seawalls provided with recesses for welding reinforcing bars.

(Prior art) A continuous block is constructed by providing a protrusion in the center of one long side of a horizontally long cube, and drilling a reinforcing bar insertion hole from the protrusion to the long side of the block. At the same time, a large number of articulated blocks are arranged in a row with the long sides of the blocks aligned with the water flow direction and the protrusions in contact with the flat long sides of other blocks, and a group of articulated blocks laid in this way. Rod-shaped connecting blocks with a length slightly more than twice the length of the connecting blocks are interposed in places, and reinforcing bar insertion holes drilled across both long sides of the connecting blocks are inserted into the connecting blocks. The blocks are fixed by communicating with the provided reinforcing bar insertion holes, inserting the reinforcing bars, and welding the reinforcing bars to each other.

Each articulating block and connecting block is formed relatively small.

(Problem that the invention aims to solve) Because the blocks are not closely spaced, weeds grow in the spaces, spoiling the aesthetics.Also, in the event of a flash flood due to a typhoon, etc., the blocks are small, so they will shift due to the force of the water. This may cause the embankment to collapse without being able to form a complete revetment.

Furthermore, since the reinforcing bars of the connecting blocks and the reinforcing bars of the connecting blocks closely communicate with each other, in order to weld the reinforcing bars at those close locations, the sides of the blocks that are in close contact with each other are separated, the reinforcing bars are exposed and welded, and then separated after welding. The moved block must be restored to its original position.

Furthermore, since the blocks themselves are relatively small, ie, formed in a size that allows them to be laid by hand, construction progress is slow and the construction period becomes long.

(Means for solving the problem) In a block in which reinforcing bar insertion holes are provided on both sides of a thick rectangular board, and a hill-like protrusion with a flat top surface is provided on the top surface of the board, the hill-shaped The protrusions are formed in a rhombic or triangular shape in plan view over most of the upper surface of the substrate, and the protrusions are provided at approximately the center of the upper surface of the flat substrate partitioned by the hill-like protrusions, and the protrusions are provided on the side surfaces of the substrate. A connecting block for welding reinforcing bars according to the present invention is formed from the bottom to the upper surface, and has a recess for inserting a finger, the bottom of which faces the reinforcing bar insertion holes.

Then, the connecting blocks for construction, which differ only in the shape without the recess for inserting the finger and have the rest of the shape exactly the same, were laid in a pile on the riverbed surface, and the reinforcing bars were welded. Connecting blocks for welding reinforcing bars are interspersed and the blocks are laid closely together without leaving any gaps on the riverbed surface, and the ends of the blocks are triangular in plan view with rounded corners. In addition, an end connecting block whose size is one-half of the connecting block, which is formed by integrally providing a hill-shaped protrusion with a flat top on the upper surface of the substrate, is appropriately interposed between the connecting blocks. The project will be constructed quickly and in a short construction period by making full use of mechanical power.

Here, the hill-like protrusion occupying a large volume on the top surface of the substrate and the protrusion expressed approximately in the center of the top surface of the flat substrate divided by the hill-like protrusion combine to increase the roughness coefficient. The purpose is to facilitate the welding of reinforcing bars by the presence of a recess.

(Operations and Examples) Examples of the present invention will be described together with operations based on the drawings.

As shown in FIGS. 1 to 5, most of the upper surface of the thick, horizontally long rectangular substrate 1 is diamond-shaped in plan view, with each corner rounded and the top surface 2a flattened. The protrusion 2 is integrally provided, and the hill-like protrusion 2
A protrusion 3 in the shape of a sunken dish or a polygon (not shown) is integrally provided at approximately the center of the upper surface of a flat rectangular substrate 1 partitioned by. In addition, the square substrate 1
Reinforcing bar insertion holes 4, 4 are drilled at two symmetrical positions parallel to the bottom surface on both sides of the long side, and the rectangular board 1 has an inverted trapezoidal shape when viewed from the front over the top surface and one side surface. , and a recess 5, 5 for inserting a finger, the bottom of which faces the reinforcing bar insertion hole 4.
By omitting the connecting block 6, the connecting block 6 according to the present invention is formed. Note that the rounded corners of the hill-shaped protrusion 2 and the protrusion 3 are intended to prevent breakage due to collision with driftwood or the like.

As shown in FIGS. 11 and 12, the connecting block for construction is different only in the shape without the recess 5 for inserting a finger, and the rest of the shape is exactly the same as the connecting block 6. 8, 15th
As shown in the figure, a large number of blocks are arranged in a stack with the long sides of the blocks aligned with the direction of water flow.

Then, place the recesses 5, 5 at the positions where the ends of the reinforcing bars 8 inserted through the 7 groups of construction connecting blocks are exposed.
The connecting block 6 is laid so that the recesses 5, 5 are located, and the reinforcing bars 8 exposed in the recesses 5, 5 are welded to each other.

In addition, since blocks of the same size are laid in a pile, the ends of the blocks are not aligned at the ends and unevenness occurs, so as an end block to correct this, connecting blocks are used as shown in Figures 6 to 10. 6 is divided into two in the short side direction, and recesses 5 and 5 are formed respectively on both side faces facing the block, so that the block is triangular in plan view, has rounded corners, and has a flat top surface. An end connecting block 9 according to the present invention in which a hill-like protrusion 2 is formed, and an end formed by dividing the connecting block 7 of the structure into two in the short side direction as shown in FIGS. 13 and 14. A connecting block 10 for constructing a section is arranged in a recessed position, and the ends are aligned in a straight line.

(Effects of the invention) Since the invention is constructed in this manner, it is possible to avoid the parts where the connecting block 7 for construction and the connecting block 6 are in close contact with each other, or the connecting block 7 for construction and the connecting block 9 for the end part are in close contact with each other. Since the end portions of the reinforcing bars 8 are exposed from the recesses 5, the reinforcing bars 8 can be easily welded to each other without separating the blocks.

Therefore, there is no need for the time and effort of moving blocks to maintain the spacing and restoring them after welding as in conventional work, and since the blocks are not moved, there is no risk of fingers getting jammed. is safe.

Further, since the hill-like protrusions 2 and protrusions 3 provided on the upper surface of the block increase the roughness coefficient of the block, the flow velocity can be significantly attenuated even in flash floods, and the block can be used safely. Furthermore, since the large blocks are laid closely together, the river bed is not exposed, so weeds do not grow, or the river bed is not washed away by running water, so there is no risk of the blocks shifting, creating a strong revetment. can be constructed.

As described above, the present invention is a useful device that has a simple structure, is robust, and is easy to manufacture.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a right side view of the same, and Fig. 4 is a front view of the embodiment of the present invention.
5 is a sectional view taken along line BB in FIG. 2, FIG. 6 is a front view of the end connecting block, FIG. 7 is a plan view of the same, and FIG. 8 is a right side view of the same. Figure 9 is a sectional view taken along line A-A in Figure 6.
Figure 0 is a sectional view taken along line B-B in Figure 7, Figure 11 is a front view of the connecting block for construction without a recess, Figure 12 is a plan view of the same, and Figure 13 is a diagram without a recess. FIG. 14 is a front view of the uninstalled connecting block for constructing the end portion, FIG. 14 is a plan view thereof, and FIG. 15 is a plan view showing a state in which the connecting block according to the present invention is installed. DESCRIPTION OF SYMBOLS 1... Square board, 2... Hill-like protrusion, 3... Protrusion, 4... Reinforcement insertion hole, 5... Recess, 6... Connection block, 9... Connection block for end.

Claims (1)

[Scope of utility model registration request] In a block in which a reinforcing bar insertion hole is provided through both sides of a thick rectangular board, and a hill-like protrusion with a flat top surface is provided on the top surface of the board, the hill-like protrusion extends over most of the top surface of the board. A projection is provided at approximately the center of the upper surface of a flat substrate that is formed into a diamond shape or a triangle in plan view and is partitioned by hill-like protrusions, and the reinforcing steel is inserted through the bottom of the substrate from the side surface to the upper surface. A large connecting block for a seawall provided with a recess for welding reinforcing bars, characterized by a recess facing the hole for inserting a finger into.