JP2017043922A - Revetment construction block, and revetment structure using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To construct a revetment that hardly collapses overall, by strengthening a bond between adjacent revetment construction blocks without extremely increasing weight.SOLUTION: Engaging structures K1, K2 are formed that comprise a recess 10 (20) and a protrusion 11 (21), on each side surface of an upper portion (an apex angle α1 side) and a lower portion (an apex angle α2 side). The engaging structure K1 of the upper portion is set to have the protrusion 11 positioned on the bottom and the recess 10 on the top. The engaging structure K2 of the lower portion is set to have the protrusion 21 on the top and the recess 20 on the bottom. Each of the engaging structures K1, K2 of the upper portion and the lower portion is formed to be roughly V-shaped, by being formed on a pair of side surfaces corresponding to two sides that form the apex angle, when seen in a planar view. The protrusion 21 of a block B placed on top is engaged by overlapping from above with the protrusion 11 of the block B placed on bottom.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a revetment building block and a revetment structure using the same.

  Among revetments for rivers, coasts, etc., for example, as shown in Patent Document 1, blocks for building a revetment formed of concrete are arranged side by side vertically and horizontally on a slope. In particular, while increasing the weight of one revetment building block, a meshing structure composed of a concave portion and a convex portion is adopted for the upper and lower edges or the left and right edges, and this meshing structure portion is adjacent. Arrangement is also made so as to mesh with the meshing structure portion of the matching revetment building block.

JP 2007-262773 A

  The conventional interlocking structure in the revetment building block is designed to extend linearly in the vertical direction or linearly in the left-right direction. In that respect, it was not always satisfactory. For this reason, when a big flood occurs, the situation where the revetment building block is moved relatively easily is likely to occur. And if one revetment building block moves, water will more easily enter below the surrounding revetment building block and the revetment building block will rise, resulting in collapse of the revetment building block. It becomes easy.

  Although it is possible to prevent movement and lifting by increasing the weight per revetment building block, the weight of one revetment building block is, for example, 5 t (tons) to 10 t. Making it extremely large is problematic from the viewpoint of workability and the like, and is practically difficult to adopt.

  The present invention has been made in view of the above circumstances, and its purpose is to strengthen the connection with adjacent revetment building blocks without significantly increasing the weight of one revetment building block, It is to provide a revetment construction block that can construct a revetment that is difficult to collapse as a whole and a revetment structure using the same.

In order to achieve the above-mentioned object, the following solution is adopted for the revetment building block according to the present invention. That is, as described in claim 1,
A revetment building block for building a revetment that is arranged side by side on the slope in the vertical and horizontal directions,
Each side surface of the upper part and the lower part is formed from a concave part and a convex part, respectively, and a meshing structure for constituting an overlapping part in the vertical direction is formed,
The meshing structure of the upper part is set so that the convex part is below and the concave part is located above, while the meshing structure of the lower part is that the convex part is above and the concave part is below Set to be located,
Each of the meshing structures of the upper part and the lower part is formed in a substantially V shape by being formed on a pair of side surfaces corresponding to two sides forming an apex angle in plan view.
It is like that.

  According to the above solution, when the revetment building block is arranged side by side vertically and horizontally for revetment construction, its upper part and lower part are meshed with other revetment construction blocks adjacent to each other. It will be engaged. Since each meshing structure of the upper part and the lower part (that is, the convex part and the concave part) is set to a pair that is inclined with respect to the vertical direction and the horizontal direction and extends in different directions. The action to strongly resist the strong external force from each direction, left and right direction, diagonal direction in cooperation with other adjacent revetment building blocks is enhanced, and its movement and lifting are prevented. become. Accordingly, it is possible to prevent the revetment from being collapsed due to a large flood or the like without unnecessarily increasing the weight of each revetment construction block.

A preferred mode based on the above solution is as described in claim 2 and the following claims. That is,
The revetment building block has a symmetrical shape in plan view, and is set so that adjacent ones above and below are shifted from each other by ½ from each other (claims). 2 correspondence). In this case, it is preferable to arrange the revetment building blocks in a so-called staggered manner to further prevent the movement and lifting of the blocks. In particular, the pair of meshing structures in the upper part will mesh with the two other left and right blocks for building a revetment, and the pair of meshing structures in the lower part will be in the left and right two positions. Since it will mesh with two other revetment building blocks, it will be extremely effective in preventing movement and lifting.

In plan view, each shape of the upper surface and the lower surface including the convex portion is a hexagonal shape having apex angles at the upper portion and the lower portion, respectively.
The meshing structure of the upper part is formed on a pair of side surfaces corresponding to the two upper sides,
The meshing structure of the lower part is formed on a pair of side surfaces corresponding to two lower sides,
The pair of side surfaces corresponding to the left and right sides are flat surfaces extending in the vertical direction,
(Corresponding to claim 3). In this case, a specific shape of the revetment building block is provided. In addition, there are a large number of other adjacent revetment building blocks located around one revetment building block, such as a total of six, so it is extremely preferable for building a strong revetment as a whole. Become.

  Anchors for connection to other revetment building blocks are integrated with the upper portions of the side surfaces corresponding to the upper two sides and the lower two sides (corresponding to claim 4). ). In this case, it is possible to connect to other adjacent revetment building blocks by an anchor with a portion that becomes a meshing structure, and this meshing is reliably maintained to prevent movement and lifting. Even more preferable.

A storage recess is formed at each of the upper portions of the side surfaces corresponding to the upper two sides and the lower two sides,
The anchor is disposed so as to be located in the storage recess,
(Corresponding to claim 5). In this case, it is preferable in terms of improving workability for disposing the block for building a revetment so that the anchor does not protrude greatly from the side surface of the block for building a revetment.

In order to achieve the above object, the following solution technique is adopted in the revetment structure in the present invention. That is, as described in claim 6,
The revetment construction blocks according to any one of claims 2 to 5 are constructed side by side in the vertical and horizontal directions, and the upper and lower revetment construction blocks are arranged to be shifted to the left and right by half each other. Revetment structure,
On the convex part of the upper part in the bank protection building block located on the lower side, the convex part of the lower part in the bank protection building block located on the upper side is arranged so as to overlap from above.
(Corresponding to claim 7). In this case, the advantage of using the above-described building for building a revetment can be obtained, and a strong revetment structure can be provided. In addition, normally, the revetment building blocks are sequentially arranged from the lower side to the upper side. In this case, the convex portions constituting the meshing structure in the lower revetment building block are obstructive. Therefore, the convex portions constituting the meshing structure in the revetment building block disposed on the upper side can be overlapped from above, which is also preferable for easily performing the revetment construction block disposition work. .

A preferred mode based on the above solution is as follows. That is,
A foundation pedestal that receives the revetment building block located on the lowermost side,
On the receiving surface for receiving the revetment building block of the foundation pedestal, a meshing structure comprising a concave portion and a convex portion corresponding to the meshing structure in the upper portion of the revetment building block is formed, and the foundation The pedestal and the revetment building block are meshed vertically.
(Corresponding to claim 7). In this case, it is possible to form a stronger revetment structure as a whole including the foundation pedestal by adopting the meshing structure between the block for building the revetment located on the lowermost side and the foundation pedestal.

  According to the present invention, a block for building a revetment for building a revetment that is not easily collapsed as a whole by strengthening the connection with adjacent blocks for building a revetment without significantly increasing the weight of one block for building a revetment. And can provide a seawall structure.

The perspective view from the lower part which shows an example of the block for building a revetment by this invention. The perspective view from the upper part of the block for building a revetment shown in FIG. The top view of the block for building a revetment shown in FIG. FIG. 4 is a bottom view of FIG. 3. FIG. 4 is a front view of FIG. 3. FIG. 4 is a left side view of FIG. 3. FIG. 4 is a cross-sectional view corresponding to line X7-X7 in FIG. 3; X8-X8 line equivalent sectional drawing of FIG. The figure which shows the state which arranged the revetment construction block shown in FIG. 3 up and down and right and left by zigzag arrangement. FIG. 10 is a cross-sectional view corresponding to line X10-X10 in FIG. 9; The top view which shows the bank protection structure comprised by the block for building a bank protection shown in FIG. 3 including the edge part. The top view corresponding to FIG. 3 which shows the modification of this invention. The front view which looked at FIG. 12 from the downward direction. The right view which looked at FIG. 12 from the right side. The top view which shows the state which arranges the revetment construction block shown in FIG. The front view which shows an example of the formwork for comprising the foundation pedestal which has a meshing structure with the block for building a revetment. The rear view of the mold shown in FIG. The front view of the formwork shown in FIG. FIG. 19 is a cross-sectional view corresponding to line X19-X19 in FIG. FIG. 19 is a cross-sectional view corresponding to line X20-X20 in FIG. The principal part cross-sectional side view which shows the state which supported the block for building a revetment with the meshing structure with respect to the formwork.

  1 to 8 show an example of a revetment building block B according to the present invention. In the present embodiment, as a whole, two thin regular hexagonal columnar bodies are stacked in a state slightly shifted up and down, and the shifting direction is obtained by setting the upper and lower apex angles α1 and α2 on the diagonal line. It is considered to be the direction to tie. Such a revetment building block B is made of concrete and has a thickness of about 50 cm, an area of about 2.6 square meters, and a weight of about 2 t (tons) to 3 t.

  The upper meshing structure K1 is configured corresponding to the apex angle α1, that is, the upper part. Further, a lower meshing structure K2 is configured corresponding to the apex angle α2, that is, the lower part.

  The upper meshing structure K1 is composed of a concave portion 10 and a convex portion 11, and is formed on a pair of side surfaces corresponding to two sides constituting the apex angle α1. The convex part 11 is formed in the lower part of the block B for building a revetment, and the upper surface is an inclined surface 11a that gradually decreases toward the tip.

  The lower meshing structure K2 includes a concave portion 20 and a convex portion 21, and is formed on a pair of side surfaces corresponding to two sides constituting the apex angle α2. The convex part 21 is formed in the upper part of the revetment construction block B, and the lower surface thereof is an inclined surface 21a that gradually increases (thickness gradually decreases) toward the tip.

  FIG. 10 shows a combined state when two similarly constructed revetment building blocks B are arranged close to each other in a state shifted by ½ in the left-right direction. As shown in FIG. 10, the convex portion 11 in the upper meshing structure K1 can be inserted into the lower concave portion 20 in the other revetment building block B, and the convex portion of the one revetment building block B is inserted. The part 11 and the convex part 21 of the other bank protection building block B are in a relationship of overlapping in the vertical direction.

  An anchor 31 that is substantially U-shaped by a reinforcing bar is integrated with the upper part of the side surface corresponding to the two sides constituting the apex angle α1. Specifically, a storage recess 32 is formed on the side surface corresponding to the two sides, and the anchor 31 is stored in the storage recess 32 so that the anchor 31 does not protrude from the side surface of the revetment building block B. Has been. The storage recess 32 and the anchor 31 are also provided in the upper part of the side surface corresponding to the two sides constituting the apex angle α2, as in the above case.

  As shown in FIG. 9, the revetment building block B configured as described above is arranged on the slope so as to cover the slope as a whole by arranging a large number of top, bottom, left, and right sides. The revetment building blocks B are sequentially arranged from the lower side to the upper side. When the upper revetment building block B is disposed with respect to the lower revetment building block B, the blocks are shifted by ½ to the left and right, and the overall arrangement is staggered. Then, the anchors 31 of the adjacent revetment building blocks B are connected by a connecting tool (not shown) such as a shackle. After the anchors 31 are connected, the gap between the adjacent revetment building blocks B is blocked by joint material such as concrete, and water enters the revetment building block B through the gap. This is prevented or suppressed.

  When the upper revetment building block B is disposed with respect to the lower revetment building block B, the convex portion 11 of the lower revetment building block B is located at a lower position, the lower portion, while Since the convex portion 21 of the arranged revetment building block B is located at a high position, ie, the upper portion, the work of arranging the upper revetment building block B so that the convex portion 21 overlaps the convex portion 11. Is easy. In addition, the sloped surface 11a of each convex part 11 and the sloped surface 21a of the convex part 21 make it easier to dispose the upper revetment building block B so that the convex parts 11 and 21 overlap vertically.

  Here, when paying attention to a certain revetment building block B, the other revetment building blocks B are located on the left and right at the same height position, and the meshing structures K1 and K2 are engaged at the lower position. Another pair of left and right revetment building blocks B that have been performed are located, and in the upper position, another pair of left and right revetment building blocks B that have been engaged by the meshing structures K1 and K2 are located. The building blocks B are firmly connected to each other. Accordingly, even when a large flood occurs, the revetment construction block B itself is prevented from moving and rising, and the situation where the revetment is destroyed is prevented.

  In particular, the upper and lower meshing structures K1, K2 of the revetment building block B are respectively provided with a pair of left and right so as to extend in different directions, and are inclined with respect to the vertical direction and the horizontal direction. Compared to the case where the meshing structure is linearly configured in the vertical direction or the horizontal direction, it effectively resists external forces from various directions and effectively prevents the breakage of the revetment. It will be possible.

  FIG. 11 shows the structure of the edge part of the revetment constructed using the block B for building a revetment. Each of the edge constituting parts C for constituting the edge part of the revetment building block B is shown in FIG. It can be formed by removing a part of the shape or by concrete pouring on site. In addition, although arrangement | positioning of FIG. 11 is shown with the small area in order to show the structure of the edge part of a revetment, in fact, many blocks B for revetment construction exist, and it is set as a large area. is there.

  12 to 15 show modifications of the revetment building block B, and the same components as those in the above embodiment are denoted by the same reference numerals, and redundant description thereof is omitted. The revetment building block B2 in this example is formed with a shallow groove 40 extending over the entire circumference at the upper edge corner. When this revetment construction block B2 is arranged vertically and horizontally as shown in FIG. 15 to form a revetment, a wide gap is formed between the adjacent revetment construction blocks B2, but this portion is a joint material 41. It is supposed to be blocked by. In the case of this example, the width and thickness (depth) of the joint material 41 are sufficiently secured, and a situation in which water intrudes downward from the gap between adjacent revetment building blocks B2 is secured for a long period of time. Preferred above.

  16 to 20 show a formwork member 60 suitable for use in forming a foundation pedestal provided when constructing a revetment, and the foundation pedestal constructed using the formwork member 60 is shown in FIG. Reference numeral 70 indicates. 16 to 20, the formwork member 60 is shown corresponding to the left and right two revetment building blocks B (or B2, the same applies hereinafter), and is actually positioned in the left-right direction. The length is set according to the number of the revetment building blocks B.

  The base pedestal 70 is engaged with the revetment building block B located on the lowermost side by an engagement structure. In other words, the receiving surface (the receiving surface that supports the revetment building block B) of the base pedestal 70 has a meshing structure K11 (recess 10) configured similarly to the meshing structure K1 in the upper part of the revetment building block B. And the convex portion 11). Thereby, the coupling | bonding with the base pedestal 70 and the lowest revetment construction block B supported by this increases more, and it becomes much more preferable in preventing a revetment collapse.

  The formwork member 60 will be described. The formwork member 60 is roughly divided into a front surface member 61, a back surface member 62 arranged at a distance from the front surface member 61, and a rod connecting the both members 61 and 62. And a connecting member 63 made of a plate material or the like. The surface member 61 is previously formed of concrete and has the above-described meshing structure K11. And the concrete base 65 as shown in FIG. 21 will be formed by pouring the concrete 65 into the space between the surface member 61 and the back member 62.

  Although the embodiments have been described above, the present invention is not limited to the embodiments, and appropriate modifications can be made within the scope of the claims. In the embodiment, the shape of the upper and lower surfaces of the revetment building block is a regular hexagon. However, this includes a case of a substantially regular hexagon, and a shape having irregularities on some sides, The corner portion is not an acute angle, and includes a case where the corner portion is curved or a short straight line. The shape of the revetment building block is, for example, a hexagonal shape elongated in the vertical direction as compared with the embodiment, a hexagonal shape widened in the left-right direction, and a rhombus shape (in the embodiment, a linear shape). (A shape that does not have two sides on the left and right sides) and the like (in particular, when used in combination with other revetment building blocks of different shapes, various shapes can be adopted). The shape of the revetment building block is a shape having apex angles at the upper part and the lower part, respectively, and a shape that is vertically symmetric and symmetric in plan view in a state where it is arranged vertically and horizontally on the slope. This is preferable in that a revetment can be configured using a revetment building block having the same shape. The apex angle that constitutes the two side portions that constitute the meshing structure is not limited to the convex portion, but may be a concave portion (on the pair of side surfaces that define the triangular concave portion serving as a space portion) Form an interlocking structure). Of course, the object of the present invention is not limited to what is explicitly stated, but also implicitly includes providing what is substantially preferred or expressed as an advantage.

  The present invention is suitable for constructing a strong revetment structure that is not easily collapsed.

B: Block for building revetment B2: Block for building revetment (Figs. 12 to 15)
α1: Upper apex angle α2: Lower apex angle K1: Engagement structure (for upper part)
K2: meshing structure (for lower part)
K11: meshing structure (for base pedestal, FIGS. 16 to 21)
10: Recess (for upper part)
11: Convex (for upper part)
11a: Inclined surface 20: Concave portion (for lower part)
21: Convex part (for lower part)
21a: Inclined surface 31: Anchor 21: Storage recess 40: Groove (for filling joint material, FIGS. 12 to 14)
41: Joint material (FIG. 15)
60: Formwork member 61: Surface member (formation of interlocking structure K11)
62: Back member 63: Connecting member 65: Concrete 70: Foundation base

Claims (7)

A revetment building block for building a revetment that is arranged side by side on the slope in the vertical and horizontal directions,
Each side surface of the upper part and the lower part is formed from a concave part and a convex part, respectively, and a meshing structure for constituting an overlapping part in the vertical direction is formed,
The meshing structure of the upper part is set so that the convex part is below and the concave part is located above, while the meshing structure of the lower part is that the convex part is above and the concave part is below Set to be located,
Each of the meshing structures of the upper part and the lower part is formed in a substantially V shape by being formed on a pair of side surfaces corresponding to two sides forming an apex angle in plan view.
Block for building a revetment characterized by that. In claim 1,
The revetment building block has a symmetrical shape in plan view, and is set so that adjacent ones above and below are shifted from each other by ½ on the left and right. For block. In claim 2,
In plan view, each shape of the upper surface and the lower surface including the convex portion is a hexagonal shape having apex angles at the upper portion and the lower portion, respectively.
The meshing structure of the upper part is formed on a pair of side surfaces corresponding to the two upper sides,
The meshing structure of the lower part is formed on a pair of side surfaces corresponding to two lower sides,
The pair of side surfaces corresponding to the left and right sides are flat surfaces extending in the vertical direction,
Block for building a revetment characterized by that. In claim 3,
A revetment construction block, wherein anchors for connection to other revetment construction blocks are respectively integrated on top of each side surface corresponding to the upper two sides and the lower two sides. . In claim 4,
A storage recess is formed at each of the upper portions of the side surfaces corresponding to the upper two sides and the lower two sides,
The anchor is disposed so as to be located in the storage recess,
Block for building a revetment characterized by that. The revetment construction blocks according to any one of claims 2 to 5 are constructed side by side in the vertical and horizontal directions, and the upper and lower revetment construction blocks are arranged to be shifted to the left and right by half each other. Revetment structure,
On the convex part of the upper part in the bank protection building block located on the lower side, the convex part of the lower part in the bank protection building block located on the upper side is arranged so as to overlap from above.
A revetment structure characterized by that. In claim 6,
A foundation pedestal that receives the revetment building block located on the lowermost side,
On the receiving surface for receiving the revetment building block of the foundation pedestal, a meshing structure comprising a concave portion and a convex portion corresponding to the meshing structure in the upper portion of the revetment building block is formed, and the foundation The pedestal and the revetment building block are meshed vertically.
A revetment structure characterized by that.

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