JP2503833B2 - Construction method of seawall - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a revetment for laying concrete blocks on a slope.

[0002]

2. Description of the Related Art For revetments that prevent erosion of rivers and coasts,
Various types of concrete blocks are used, and fixed-wall concrete blocks are tightly packed on the slopes of rivers, etc. to form a revetment wall. By the way, such revetment walls tend to give a disproportionate impression to the surrounding natural landscape because they have a structure in which artificially shaped concrete blocks are laid out in an orderly manner. A huge stone revetment is known. However, since a large amount of natural stone is required for this kind of megalith revetment, it has become more difficult to collect it in recent years, and it has to be transported from a place far away from the revetment construction site and where vehicles cannot enter. And first of all, it is necessary to install a temporary road through which construction vehicles can pass to such a collection site, and among the megaliths to be collected, only those that can be used for revetment are limited, and a megalith revetment is constructed. It has become very difficult to collect the natural stones to use. Also, in actual construction, when stacking megaliths on the slopes of rivers, etc., wire ropes are usually hung on the cross for installation, but subtle angle adjustments during installation and wire ropes after installation Is difficult to remove with the above-mentioned crucifix, and there is a problem in safety during lifting with the method of hanging with a single wire rope. Furthermore, in megalithic revetments, it is important not only that the piled up megaliths function as a revetment, but it is important to construct a revetment that matches the surrounding natural landscape. Since it is necessary to stack while considering the appearance, the skill of the worker is required, and even after once stacking, if the mesh with the lower stage and the balance with the surrounding are bad, the size of the huge stone to be used again, There is a problem that the workability is inferior because it is a troublesome work of examining the shape etc. and reloading. Considering the difficulty of collecting such huge stones and the complicated construction work, for example, as shown in FIG. 51, a concrete block C in which the upper portion A is modeled as a natural stone and the lower portion B is formed into a regular shape is One possible method is to lay one on each surface.

[0003]

By laying the above-mentioned conventional concrete block C on the slope, an upper part A imitating a natural stone appears on the surface and a revetment suitable for the surrounding landscape can be constructed. . However, since the upper part A is imitated as a natural stone, the upper part A has an irregular shape, and it is difficult to install the upper parts A and A of the adjacent concrete blocks C and C in close contact with each other. Since a local load is likely to be concentrated on a part of the seawall due to D, there is a problem that the entire structure of the seawall tends to be unstable. Further, in the actual construction, even if the concrete block C is once laid, if the balance with the surroundings is bad or the interval D occurs, the laid concrete block C is re-suspended and the arrangement of the concrete block C is changed or the concrete block C is changed. There is a drawback that the work efficiency is poor because the block C must be re-laid by turning it. Further, since the upper part A is integrally provided on the lower part B, the weight of the concrete block C is increased, and the hanging and installation are complicated, resulting in poor workability.

Therefore, an object of the present invention is to provide a revetment construction method capable of constructing a revetment excellent in appearance design and improving the workability.

[0005]

The present invention relates to a method of constructing a revetment for laying a concrete block on a slope or a flat surface, wherein the concrete block is composed of an upper block and a lower block whose upper parts are formed in an irregular shape. Divide and form, after laying the lower block on the slope or flat surface,
It is a method of constructing a revetment, characterized in that an upper block is movably assembled on the upper part of the lower block and the upper blocks are laid without a gap.

[0006]

With the above structure, the upper block and the lower block are separately installed, and after the lower block is assembled, the upper block is moved so that there is no gap between the upper blocks. Moreover, after the construction, the irregularly formed head of the upper block appears on the slope surface.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIGS. 1 to 4 show a first embodiment of the present invention, in which an upper block 2 of a divided block 1 is
This is a method of movably assembling on the upper part of the lower block 3 of the divided block 1 and laying the upper blocks 2 with no space between them. The divided block 1 molded from concrete is Lower block 3
The lower block 3 is divided into two parts, and a pedestal part 5 is integrally provided on a flat hexagonal base part 4, and insertion holes 7 are formed on the left and right sides of the base part 4 for inserting connecting reinforcing bars 6, respectively. Further, a hemispherical projection 9 is provided at the center of the upper surface 8 of the pedestal portion 5 of the lower block 3, which is an opposing surface. In the upper block 2, a head 11 is integrally formed on a hexagonal body 10, and a lower surface 12 which is a facing surface of the body 10 is provided so as to face an upper surface 8 of the lower block 3. Has been. The upper block 2
A hemispherical groove on which the hemispherical projection 9 can slide on the lower surface 12 of the
13 is formed, the groove 13 has a larger curvature than the protrusion 9, and the height H of the groove 13 is shorter than the height of the protrusion 9. The head portion 11 of the upper block 2 is formed by imitating an irregular shaped natural stone, and is formed in an appropriate shape such as cobblestone or rubble stone. In addition, the hooks 14 and 14 made of metal or the like are provided on the blocks 2 and 3, respectively.
Is provided. In the figure, 15 is a connecting member such as a shackle, 16 is a basic block, 17 is a slope, and 17A is a flat surface.

Next, a method of constructing a seawall using the divided block 1 will be described. First, a basic block 16 is constructed along a river or the like to form a slope 17, and a suction preventing mat (not shown) is laid on the slope 17. After this, slope 17
The lower blocks 3 each having a flat hexagonal shape are laid without any space therebetween, and the connecting reinforcing bars 6 are inserted into the respective insertion holes 7 to connect the lower blocks 3 to each other. After laying the lower block 3, align the hemispherical groove portion 13 with the hemispherical projection 9 and place the upper block 2 on the lower block 3, and then place the upper block 2 in the front, rear, left and right directions. Assemble so that it can be swung and rotated 360 degrees on the plane. At this time, the protrusion 9 has a groove 13
Is slid to adjust the inclination of the upper block 2, that is, the swinging, and the rotation is adjusted to assemble the adjacent upper blocks 2 with no space between them. When the inclination of the upper block 2 is determined, the lower block 3 and the upper block 2 are connected and fixed by the connecting member 15 via the hook portions 14, 14.

As described above, in this embodiment, the divided block 1 is divided into the upper block 2 and the lower block 3 each having an irregular upper portion, and the lower block 3 is laid on the slope 17. Since the upper block 2 is movably assembled on the upper part of the lower block 3 and the upper block 2 is laid between the upper block 2 with no gap, the slope surface 17
After laying the lower block 3 on the lower block 3, the upper block 2 is placed on the lower block 3, the inclination of the upper block 2 is adjusted, and the upper block 2 is rotated about the protrusion 9. A stable revetment structure can be obtained by laying between the upper blocks 2 without a gap. Also, the lower block 3
By separately laying the upper block 2 and the upper block 2, it is possible to reduce the transport weight of the single block and improve the workability. Further, by molding the head portion 11 of the upper block 2 into a shape imitating natural stone, the divided block 1
The surface of the revetment constructed by the above can represent megalithic turbulence, and the appearance design according to the surrounding natural scenery can be obtained.

Further, in this embodiment, after the lower block 3 has been laid, the revetment construction method is to assemble the upper block 2 from the upper portion of the lower block 3 after the lower block 3 is laid on the entire slope 17. Unlike the case where the lower block 3 and the upper block 2 are alternately assembled, such as the upper block 2 is laid, the upper block 2 is assembled after the installation of all the lower blocks 3 is completed. Therefore, it is possible to improve the carrying-in control and the workability of both blocks 2 and 3. Further, since the method is to hang and mount the upper block 2 on the lower block 3 from the upper part thereof, even after the upper block 2 is assembled, even if the upper block 2 is out of balance with the surroundings, The lower block 3 can be left as it is, and only the upper block 2 can be lifted up for easy replacement.

Further, as an effect of the embodiment, by laying the lower block 3 having a flat hexagonal shape without a gap,
The lower block 3 alone provides the function of a revetment that protects the slope 17, and the upper block 2 can be laid so that its adjacent front, rear, left, and right side surfaces are in contact with each other, resulting in excellent stability. A revetment structure is obtained. In addition, the groove
13 has a larger curvature than the protrusion 9, and the height dimension H of the groove 13 is
Is formed shorter than the height of the protrusion 9,
Since the groove 13 and the protrusion 9 slide due to partial contact,
A large force is not required to tilt and rotate the upper block 2, and the tilt and rotation can be easily adjusted.

FIG. 5 shows a second embodiment of the present invention, in which the same parts as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted. A hemispherical groove 13 is formed on the upper surface 8 of the pedestal 5, which is the opposite surface,
A hemispherical projection 9 on which the hemispherical groove 13 is slidable is provided in a protruding manner on a lower surface 12 of the upper block 2 which faces the groove 13.
Has a curvature larger than that of the protrusion 9, and the height H of the groove 13 is shorter than the height of the protrusion 9. After the lower block 3 is laid on the slope 17, the hemispherical groove portion 13 of the lower block 3 is aligned with the hemispherical projection 9 of the upper block 2, and the upper block 2 is placed on the lower block 3. Is mounted, and the upper block 2 is movably assembled so that it can be swung back and forth, left and right, and can be rotated 360 degrees on the plane.
At this time, the protrusion 9 is slid in the groove portion 13 to adjust the inclination, that is, the swinging of the upper block 2, and the rotational adjustment is performed to lay the space between the side portions of the adjacent upper blocks 2 without a gap. This is a construction method and has the same operation and effect as those of the first embodiment.

FIG. 6 shows a third embodiment of the present invention, in which the same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. 13 is formed on a hemispherical surface having the same curvature,
After laying the lower block 3 on the slope 17, the upper block 2 is rotatably and rotatably assembled to the lower block 3 so that the upper block 2 can be laid between the upper blocks 2 without a gap. This construction method has the same effects and advantages as those of the first embodiment.

7 to 10 show a fourth embodiment of the present invention. The same parts as those of the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted. The upper surface 8 of the pedestal portion 5, which is an opposing surface, is provided with a substantially cylindrical projection 9A at the center thereof, and the lower surface 12 of the body portion 10, which is an opposing surface, is the upper surface 8 of the lower block 3. And a concave groove portion 13A into which the protrusion 9A is inserted and arranged is formed on the lower surface 12 of the upper block 2 and the concave groove portion 13A has a substantially cylindrical shape. A space portion 13B, which is formed to have a large diameter and in which the protrusion 9A can move, is formed between the protrusion 9A and the groove 13A. The head portion 11 of the upper block 2 is formed by imitating an irregular shaped natural stone, and is formed in an appropriate shape such as cobblestone or rubble stone. Then, after laying the lower block 3 on the slope 17, the protrusion 9A of the lower block 3 is aligned with the groove 13A of the upper block 2, and the upper block 2 is placed on the lower block 3. Then, the upper block 2 is assembled so as to be movable back and forth, left and right, and rotatable 360 degrees on the plane. At this time, the lower surface 12 of the upper block 2 is slid on the upper surface 8 of the lower block 3 to adjust the front, rear, left, and right positions of the upper block 2, and the rotation of the upper block 2 is adjusted to adjust the adjacent upper block 2 side. This is a construction method of a revetment in which parts are laid without a gap, and the same action and effect as in the first embodiment are obtained. In this example, the upper block 2 on the lower block 3 is a relatively wide lower block 3 Upper surface 8 and upper block 2
Can be stably placed on the lower block 3 by coming into contact with the lower surface 12 thereof, and the movement of the upper block 2 is limited to the range in which the protrusion 9A can move within the concave groove 13A. The upper block 2 does not come off from the lower block 3, and a stable mounting state can be obtained even before the blocks 2 and 3 are connected by the connecting member 15 or the like.

FIG. 11 shows a fifth embodiment of the present invention. The same parts as those in the first and fourth embodiments are designated by the same reference numerals and detailed description thereof will be omitted. ,
A concave groove is formed on the upper surface 8 which is the sliding surface of the pedestal 5 of the lower block 3.
13A is formed, and the lower surface 12 is the facing surface of the upper block 2
A protruding portion 9A that is inserted and arranged in the recessed groove portion 13A is provided on the protrusion. Then, after the lower block 3 is laid on the slope 17, the upper block 2 is placed and assembled by aligning the projection 9A of the upper block 2 with the concave groove portion 13A of the lower block 3. At this time, the lower surface 12 of the upper block 2 is slid on the upper surface 8 of the lower block 3 to adjust the position of the upper block 2 and rotationally adjust the space between the side portions of the adjacent upper blocks 2. This is a construction method of a seawall that is laid without a gap, and has the same operation and effect as those of the first embodiment.

12 to 18 show a sixth embodiment of the present invention, in which the same parts as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted. The upper block 22 of 21 is a construction method of a seawall in which the upper block 22 and the lower block 23 of the divided block 21 are movably assembled and laid between the upper blocks 22 without a gap, and molded from concrete. The divided block
21 is divided into an upper block 22 and a lower block 23, and the lower block 23 is a flat hexagonal base portion.
A pedestal portion 25 is integrally provided on the 24, and insertion holes 27 through which the connecting reinforcing bars 26 are inserted are formed on the left and right sides of the base portion 24, respectively. The upper block 22 has a hexagonal body 28
A head 29 is integrally formed on the upper surface of the body 28, and a substantially cylindrical projection 31 is provided at the center of the lower surface 30 which is the facing surface of the body 28. Has a convex arcuate surface 32 which is enlarged to form a part of a substantially spherical surface. The pedestal portion 25 of the lower block 23 has an upper surface 33, and the upper surface 33 that constitutes the facing surface is provided so as to face the lower surface 30.
As shown in FIG. 14, a lateral groove 34 is formed on the upper surface 33 of the lower block 23 so that the protrusion 31 can be loosely inserted from the side of the lower block 23. Department
The height dimension of the lower block 23 is shorter than that of the lower block 23, and the lower block 23 is provided so as to communicate from one side to the other side, and the convex arcuate surface 32 is slidable on the bottom of the lateral groove portion 34. A concave arc surface 35 is formed, and the concave arc surface 35 has a larger curvature than the convex arc surface 32. Further, as shown in FIG. 12, on both sides of the upper edge of the lateral groove portion 34, a retaining portion that engages with the tip of the protruding portion 31 to prevent the protruding portion 31 from coming out upward.
36 is formed, and the retaining portion 36 is formed at a distance from the protrusion 31 so that the upper block 22 can swing forward, backward, leftward and rightward. Further, the head 29 of the upper block 22
Is formed by imitating an irregular shaped natural stone, and is formed in an appropriate shape such as a cobblestone or a rubble stone.

Next, a method of constructing a seawall using the divided blocks 21 will be described. First, a basic block 16 is constructed along a river or the like to form a slope 17, and a mat (not shown) for preventing suction is laid on the slope 17. After this, slope 17
A hexagonal lower block 23 is attached to the
As shown in FIG. 7, the respective lateral groove portions 34 are laid so as to be aligned from the upper side to the lower side of the slope 17, and the connecting rebars 26 are inserted into the respective insertion holes 27 to connect the lower blocks 23 to each other. Then, when the laying of the lower block 23 is completed, the protrusion 31 of the upper block 22 is loosely inserted into the lateral groove portion 34 from the upper side portion of the uppermost lower block 23 as shown in FIG.
Further, it moves downward along the lateral groove portions 34, 34 arranged side by side, and is inserted and arranged in the lateral groove portion 34 of the predetermined lower block 23, and the upper block 22 is swung back and forth, left and right on the lower block 23, and the plane 360 It is assembled so as to be freely rotatable and movable along the lateral groove portion 34. At this time, the protrusion along the lateral groove 34
While adjusting the position of 31 forward and backward, slide the convex arcuate surface 32 on the concave arcuate surface 35 to adjust the inclination of front, rear, left and right of the upper block 22, that is, the swinging, and adjust the rotation to adjoin the upper part. Assemble the sides of the block 22 without any gap.
On the other hand, as shown in FIG. 15, each time one lower block 23 is laid, the divided blocks 21 may be laid on the slope 17 while assembling the upper blocks 22 one by one in the lower block 23.

As described above, in this embodiment, the divided block 21 is divided into the upper block 22 and the lower block 23 whose upper portions are formed in an irregular shape, and the lower block 23 is laid on the slope 17. Since the upper block 22 is movably assembled to the upper part of the lower block 23 and the upper block 22 is laid between the upper blocks 22 without a gap, the slope surface 17
After the lower block 23 is laid on the lower block 23, the protrusion 31 of the upper block 22 is inserted into the lateral groove 34 of the lower block 23 to connect both blocks 22 and 23, and the inclination and position of the upper block 22 can be adjusted. Block for adjustment and centering on protrusion 31
A stable revetment structure can be obtained by rotating the 22 and laying it between the upper blocks 22 without a gap. Further, by laying the lower block 23 and the upper block 22 separately, the weight of a single block to be transported can be reduced and the workability can be improved. Furthermore, by molding the head 29 of the upper block 22 into a shape imitating natural stone, the surface of the revetment constructed by the divided blocks 21 can represent megalithic turbulence, which is in line with the surrounding natural landscape. Appearance design can be obtained.

Further, in this embodiment, after the lower block 23 is laid, the revetment construction method is to assemble the upper block 22 from the side of the lower block 23. Block 22
There is no restriction on the hanging and movement of the, the new upper block 22 is assembled to the lower block 23 from the side direction on the other side of the lower block 23 with respect to the installed upper block 22, The subsequent position adjustment can be easily performed.

Further, as an effect of the embodiment, by laying the lower block 23 having a flat hexagonal shape without a gap,
The lower block 23 alone provides the function of a revetment that protects the slope 17, and the upper block 22 can be laid so that its adjacent front, rear, left, and right side surfaces are in contact with each other, resulting in excellent stability. A revetment structure is obtained. Further, since the retaining portion 36 is formed in the lateral groove portion 34, the protruding portion 31 that is loosely inserted from the side portion does not fall out, so that the upper block 22 can be stably constructed. Furthermore,
All the lower blocks 23 are laid on the slope 17 by laying the lower blocks 23 such that the lateral groove portions 34 provided so as to communicate from one side to the other side of the lower blocks 23 are arranged in a line. After that, the protruding portion 31 of the upper block 22 is loosely inserted into the lateral groove portion 34 of the uppermost side lower block 23 from the upper side portion thereof, and is moved downward along the aligned lateral groove portions 34, 34, and a predetermined lower portion is formed. The lower block 23 and the upper block are arranged by inserting and arranging them into the lateral groove 34 of the block 23 for assembling.
22 and 22 can be divided separately for construction.

19 and 20 show a seventh embodiment of the present invention, in which the same parts as those in the first and sixth embodiments are designated by the same reference numerals and detailed description thereof will be omitted.
In this example, the upper block 22 does not have a torso
A projecting portion 31 is provided so as to project directly downward from the lower surface 30 of 29. Further, a flat hexagonal body portion 28A is integrally provided on the pedestal portion 25 of the lower block 23, and an upper surface 33 of the body portion 28A is provided.
A lateral groove portion 34 is formed in the. And the lower block 23
After laying on the slope 17, the upper block 22 is oscillated from the side of the lower block 23 to the front, rear, left and right, is rotated 360 degrees in the plane, and is movably assembled along the lateral groove 34. At this time, the position of the protrusion 31 is adjusted back and forth along the lateral groove 34, and the convex arc 32 is slid on the concave arc 35 to adjust the tilt of the upper block 22 in the front-rear direction, that is, the swing. And the upper block adjacent to each other by adjusting the rotation.
It is a construction method of the revetment that lays between the side parts of 22 without a gap,
The same operation and effect as the sixth embodiment, and in this example, by forming the trunk portion 28A in the lower block 23, the lower block 23 has an excellent function as a revetment for protecting the slope 17. Since the upper block 22 is provided with the protruding portion 31 directly from the head portion 29 without providing the body portion, the upper block 22 is lightweight and easy to handle during construction, and the workability is improved. be able to.

21 and 22 show an eighth embodiment of the present invention, in which the same parts as those in the first and sixth embodiments are designated by the same reference numerals and detailed description thereof will be omitted.
In this example, the convex arcuate surface 32A of the enlarged tip of the protrusion 31 is formed so as to form a part of a substantially cylindrical shape, and the front view in the direction of the plane 90 degrees with respect to the side view of FIG. 12 shows the same shape as 12. Then, after laying the lower block 23 on the slope 17, the upper block 22 is movably assembled from the side portion of the lower block 23 so that the upper block 22 can be swung left and right and along the lateral groove 34. At this time, the position of the protrusion 31 is adjusted back and forth along the lateral groove 34, and the concave arc surface is formed.
It is a construction method of a seawall in which the convex arc surface 32A is slid on the 35 to adjust the left and right inclinations of the upper block 22, that is, the swinging, and the side portions of the upper block 22 are laid without a gap.
The same actions and effects as those of the embodiment are achieved, and in this example, the upper block 22 swings in the left-right direction to facilitate adjustment.

23 and 24 show a ninth embodiment of the present invention, in which the same parts as those in the first and sixth embodiments are designated by the same reference numerals and detailed description thereof will be omitted.
In this example, the protrusion 31 is formed in a tapered shape toward the tip, and a convex arc surface 32B forming a part of a substantially spherical surface is formed at the tip.
Are formed. Further, the lateral groove portion 34A is formed so that the projection portion 31 can be loosely inserted from the side portion, and the projection portion 31 is formed on the upper edge side thereof.
A tapered retaining portion 36 is formed at a distance from 31. Then, the position of the protrusion 31 is adjusted forward and backward along the lateral groove 34A, and the convex arc surface 32B is slid on the concave arc surface 35 to adjust the inclination of the front, rear, left and right of the upper block 22, that is, the swing. In addition, it is a construction method of a seawall in which the side portions of the adjacent upper blocks 22 are rotatably adjusted and laid between the side portions without a gap, and the same action and effect as those of the sixth embodiment can be obtained. Since the entire outer surface is formed of a circular arc surface, the protrusion 31 can be smoothly moved within the lateral groove 34A.

25 to 29 show a tenth embodiment of the present invention, in which the same parts as those of the first and sixth embodiments are designated by the same reference numerals and detailed description thereof will be omitted. In this example, a substantially cylindrical protrusion 31 is provided at the center of the upper surface 33 of the lower block 23A, and the tip of this protrusion 31 is enlarged to form a convex arc surface 32 forming a part of a substantially spherical surface. ing. A lateral groove 34 is formed on the lower surface 30 of the upper block 22A so that the protrusion 31 can be loosely inserted from the side of the lower block 23A. The lateral groove 34 is higher than the protrusion 31. Block 22 for the upper part with a short dimension
The body 28 of A is provided so as to communicate from one side to the other side,
A concave circular arc surface 35 on which the convex circular arc surface 32 is slidable is formed on the upper surface as the bottom. Further, on both sides of the lower edge of the lateral groove portion 34, there is formed a retaining portion 36 which engages with the tip of the protrusion 31 to prevent the upper block 22A from being detached upward. The block 22A is formed at a distance from the projection 31 so that it can swing forward, backward, leftward and rightward.

Next, a method of constructing a seawall using the divided blocks 21 will be described. First, a basic block 16 is constructed along a river or the like to form a slope 17, and a mat (not shown) for preventing suction is laid on the slope 17. After this, slope 17
Lay flat hexagonal lower block 23A on
Further, the connecting reinforcing bars 26 are inserted into the respective insertion holes 27 to connect the lower blocks 23A to each other. When the lower block 23A has been laid, the horizontal groove 34 is aligned with the protrusion 31 of the lower block 23A, and the upper block 22A is assembled on the lower block 23A. At this time, the position of the upper block 22A is adjusted, and the concave arc surface 35 is slid on the convex arc surface 32 of the protrusion 31 to adjust the inclination of the upper block 22A in the front-rear direction, that is, the swing. Rotational adjustment is performed to assemble the adjacent upper blocks 22A without gaps between the side portions.

As described above, in the present embodiment, the divided block 21 has the upper portion formed in an irregular shape, and the upper block 22A.
And the lower block 23A are formed separately, and the lower block is formed.
After laying 23A on the slope 17, the upper block 22A is movably assembled on the upper part of the lower block 23A and laid between the upper blocks 22A with no space between them. After laying the block for use 23A, the lateral groove 34 of the block for upper 22A is inserted and arranged in the protrusion 31 of the block for lower 23A, and both blocks 22A, 23A are assembled.
By adjusting the inclination and position of the upper block 22A and adjusting the rotation to lay the space between the upper blocks 22A without a gap, a stable revetment structure can be obtained. In addition, by laying the lower block 23A and the upper block 22A separately, the weight of a single block to be transported can be reduced and the workability can be improved.
By molding the head portion 29 of 22A into a shape imitating natural stone, the surface of the revetment constructed by the divided blocks 21 can show megalithic mess, and an appearance design that matches the natural scenery around is obtained. The same effect and action as the sixth embodiment are obtained.

In this embodiment, after the lower block 23A is laid, the lower block 23A is laid from the side to the upper block.
Since it is the construction method of the revetment that assembles 22A, the suspended upper block 22A does not restrict the suspension and movement of the newly constructed upper block 22A. From the other side of the block 23A, the new upper block 22
By attaching A to the lower block 23A, the subsequent position adjustment can be easily performed.

30 to 35 show an eleventh embodiment of the present invention. The same parts as those of the first and sixth embodiments are designated by the same reference numerals and detailed description thereof will be omitted. In this example, on the upper surface 33 of the lower block 23, as shown in FIG.
As shown in FIG. 5, a lateral groove 34 is formed in which the protrusion 31 can be loosely inserted from one side of the lower block 23, and a stopper having a vertical wall on the other side in the longitudinal direction of the lateral groove 34. 36A is formed, and the lateral groove of the protrusion 31 is formed by the stopper 36A.
The lateral movement within the 34 is restricted. Then, after laying the lower block 23 on the slope 17, the projection 31 of the upper block 22 is loosely inserted into the lateral groove portion 34 of the lower block 23, and the upper block 22 is swung back and forth, left and right, and the plane 3
It is movably assembled so that it can be rotated by 60 degrees and can be moved along the lateral groove 34. At this time, the positions of the protrusions 31 are adjusted forward and backward along the lateral groove 34, and the inclination of the upper block 22 in the front, rear, left and right, that is, the swinging is adjusted, and the rotation is adjusted to adjust the space between the adjacent upper blocks 22. This is a method of constructing a seawall with no gaps, and a stable seawall structure can be obtained by laying between the upper blocks 22 without any gaps. Also,
By laying the block 23 for the lower part and the block 22 for the upper part separately, the transporting weight of the single block can be reduced and the workability can be improved. Furthermore, by molding the head 29 of the upper block 22 into a shape imitating natural stone, the surface of the revetment constructed by the divided blocks 21 can represent megalithic turbulence, which is in line with the surrounding natural landscape. The appearance design is obtained, the same action and effect as those of the sixth embodiment are obtained, and in this example, the protruding portion 31 loosely inserted from the side portion does not come out from the other side, and the protruding portion 31 has the stopper portion 36A.
When the upper block 22 is positioned relative to the lower block 23, the assembled upper block 22 does not shift unnecessarily by contacting the upper block 22 with the upper block 22.
The construction of can be performed stably.

FIGS. 36 and 37 show a twelfth embodiment of the present invention. The same parts as those of the first and sixth embodiments are designated by the same reference numerals and detailed description thereof will be omitted. In this example, the horizontal groove portion 34 of the lower block 23 is provided with a vertical insertion portion 39 into which the tip of the projection 31 can be inserted from the upper portion without providing the retaining portion 36 on the side different from the stopper portion 36A. Then, after laying the lower block 23 on the slope 17, insert the protrusion 31 of the upper block 22 from the upper part into the vertical insertion portion 39 and slide it laterally, swinging the upper block 22 back and forth, left and right, It is assembled so as to be movable 360 degrees in a plane and movable along the lateral groove 34. At this time, the lateral groove 34
The position of the projection 31 is adjusted back and forth along with, and the convex arc 32 is slid on the concave arc 35 to slide the upper block 22.
Is a method of constructing a revetment in which the front, rear, left, and right inclinations, that is, the swinging is adjusted, and the rotation is adjusted to lay the space between the adjacent side portions of the upper block 22 without a gap. The same operation and effect as those of the sixth embodiment Further, in this example, the upper block 22 can be stably constructed with the upper block 22 positioned with respect to the lower block 23 by the stopper portion 36A.

Further, in this embodiment, after the lower block 23 is laid, the revetment construction method is to assemble the upper block 22 from the upper part of the lower block 23. After the lower block 23 is laid on the entire slope 17, Unlike laying the lower block 23 and the upper block 22 alternately, such as laying the upper block 22, assembling the upper block 22 after the laying of all the lower blocks 23 is completed. Therefore, it is possible to improve the carry-in management and the workability of both blocks 22 and 23. Further, since it is a method of suspending the upper block 22 from the upper part to the lower block 23 and laying it, even after the upper block 22 is assembled, even if the upper block 22 does not balance well with the surroundings, It is possible to simply replace the upper block 22 by lifting the upper block 22 without changing the upper block 23.

38 and 39 show a thirteenth embodiment of the present invention, in which the same parts as those in the first and sixth embodiments are designated by the same reference numerals and detailed description thereof will be omitted. In this example, the horizontal groove portion 34 of the lower block 23 is provided with a vertical insertion portion 39A into which the tip of the protrusion 31 can be inserted from above without providing a stopper portion on the side different from the stopper portion 36A. As shown in FIG. 38, the vertical insertion portion 39A is formed from the upper surface 33 to one side of the lateral groove portion 34 with the side surface inclined. And after laying the lower block 23 on the slope 17, the upper block
This is a construction method for a seawall in which the inclination and position of the front, rear, left, right, and left are adjusted and the rotation is adjusted so as to lay the space between the upper blocks 22 without any gap. A vertical insertion part that allows the protrusion 31 to be inserted into the part 34 from above.
Since 39A is formed, in addition to the construction method of laying the lower block 23 and the upper block 22 one by one, after laying a plurality of lower blocks 23 on the entire slope 17, The projecting portion 31 can be inserted from the upper portion into the vertical insertion portion 39A and slid in the lateral direction, and the upper block 22 can be assembled to the lower block 23 in a divided manner.

40 and 41 show a fourteenth embodiment of the present invention, in which the same parts as those in the first and sixth embodiments are designated by the same reference numerals and detailed description thereof will be omitted. In this example, the upper block 22 is provided with a protrusion 31 directly downward from the lower surface 30 of the head 29 without providing a body portion. A flat hexagonal body portion 28A is integrally provided on the pedestal portion 25 of the lower block 23, and a lateral groove portion 34 is formed on an upper surface 33 of the body portion 28A. Also, this lateral groove 34
36A having a vertical wall on the other side in the longitudinal direction of the
The stopper portion 36A restricts the lateral movement of the protrusion 31 in the lateral groove portion 34.
Then, after laying the lower block 23 on the slope 17, by adjusting the inclination and position of the upper block 22 in the front, rear, left, and right, and by adjusting the rotation, a construction method of a revetment that lays between the upper blocks 22 without a gap. The same action and effect as in the sixth embodiment are exhibited, and in this example, by forming the trunk portion 28A in the lower block 23, the lower block 23 has an excellent function as a revetment for protecting the slope 17. Block 22 for the upper part
Since the protruding portion 31 is directly projected from the head portion 29 without providing the body portion on the upper portion, the upper block 22 has a light weight, is easy to handle during construction, and is easy to work.

FIG. 42 shows a fifteenth embodiment of the present invention, in which the same parts as those in the first and sixth embodiments are designated by the same reference numerals and detailed description thereof will be omitted. Similar to the eighth embodiment, the enlarged convex arcuate surface 32A at the tip of the protrusion 31 is formed so as to form a part of a substantially cylindrical shape. Further, a stopper portion 36A having a vertical wall portion is formed on the other side in the longitudinal direction of the lateral groove portion 34, and the stopper portion 36A is formed.
Thus, the lateral movement of the protrusion 31 in the lateral groove 34 is restricted. Then, the lower block 23 is used as the slope 17
Then, the upper block 22 is movably assembled from the side portion of the lower block 23 so that the upper block 22 can be swung left and right and along the lateral groove portion 34. At this time, the position of the projection 31 is adjusted back and forth along the lateral groove 34, and the convex arc 32A is slid on the concave arc 35 to adjust the left / right inclination of the upper block 22, that is, the swing. It is a construction method of revetment in which the space between the side portions of the upper block 22 is installed without a gap.
The same action and effect as those of the embodiment are achieved, and in this example, the upper block 22 becomes easy to swing in the left-right direction, and the flat wall portion of the stopper portion 36A is provided with the flat end surface of the tip of the protrusion 31. Can be brought into contact with each other to reliably position the upper block 22.

43 to 44 show a sixteenth embodiment of the present invention. The same parts as those of the first and sixth embodiments are designated by the same reference numerals and detailed description thereof will be omitted. In this example, the protrusion 31 is formed in a taper shape toward the tip, and a convex arc surface forming a part of a substantially spherical surface at the tip.
32B is formed. Further, the lateral groove portion 34A is formed by the protrusion 31.
Is formed so that it can be loosely inserted from the side portion, and a tapered retaining portion 36 is formed on the upper edge side thereof at a distance from the projection 31. Further, a stopper portion 36A having a vertical wall portion is formed on the other side in the longitudinal direction of the lateral groove portion 34A, and the stopper portion 36A regulates the lateral movement of the protrusion 31 in the lateral groove portion 34A. There is. Then, along with the lateral groove 34, the position of the projection 31 is adjusted forward and backward, and the concave arc surface is formed.
A seawall for sliding the convex arcuate surface 32B on the 35 to adjust the front, rear, left and right inclinations of the upper block 22, that is, swinging and adjusting the rotation to lay the space between the side portions of the adjacent upper blocks 22 without a gap. This construction method has the same effects and advantages as those of the sixth embodiment. Further, in this embodiment, since the outer surface of the protrusion 31 is entirely arcuate, the protrusion 31 in the lateral groove 34A is It is possible to move smoothly.

45 to 50 show a seventeenth embodiment of the present invention. The same parts as those of the sixth embodiment are designated by the same reference numerals and detailed description thereof will be omitted. A substantially cylindrical projection 31 is provided at the center of the upper surface 33 of the block 23A, and the tip of the projection 31 is enlarged to form a convex arc surface 32 forming a part of a substantially spherical surface. Further, a lateral groove 34 is formed on the lower surface 30 of the upper block 22A so that the protrusion 31 can be loosely inserted from the side of the lower block 23A.
The horizontal groove portion 34 is formed to have a height dimension shorter than that of the protrusion portion 31 and is formed from one side to the other side of the body portion 28 of the upper block 22A. A concave arc surface 35 on which the arc surface 32 is slidable is formed. Further, on both sides of the lower edge of the lateral groove portion 34, there is formed a retaining portion 36 which engages with the tip of the protrusion 31 to prevent the upper block 22A from being detached upward. The block 22A is formed at a distance from the projection 31 so that it can swing forward, backward, leftward and rightward. Also, the lateral groove 34
36A having a vertical wall on the other side in the longitudinal direction of the
Is formed, and the stopper block 36A forms an upper block.
The 22A lateral movement is restricted. After the lower block 23A has been laid, the lower groove block 23A is aligned with the lateral groove 34 in the lower block 23A.
Place the upper block 22A on the 23A. At this time, the position of the upper block 22A is adjusted, and the concave circular arc surface 35 is slid on the convex circular arc surface 32 of the protrusion 31 to move the upper block 22A.
22A is a construction method of a seawall in which the inclination of front, rear, left and right, that is, the swinging is adjusted, and the rotation is adjusted to lay the space between the adjacent side portions of the upper block 22A without a gap. The same operation as in the sixth embodiment, In addition, since the stopper portion 36A is formed in the lateral groove portion 34 in this example, even when the divided block 21 is laid on a slope or the like having a steep slope, the protrusion 31 contacts the stopper portion 36A. Upper block 22A assembled in contact
The upper block 22A is positioned relative to the lower block 23A without undue displacement, and in this positioned state, the upper block 22A is tilted back and forth and left and right to adjust the space between the upper blocks 22A. The upper block 22A can be laid without a gap.

The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. For example, in the embodiment, the upper block is movable. Although it is shown that the position can be adjusted back and forth, swingable, rotatable, etc., the upper block can be only position adjustable, only swingable, or only rotatable Alternatively, the position and the rotation may be possible, and the position and the swing may be possible. Further, although the example in which the divided blocks are laid on the flat surface continuous with the slope is shown in the embodiment, the divided blocks may be laid on only the flat surface.

[0037]

INDUSTRIAL APPLICABILITY The present invention is a method of constructing a revetment for laying a concrete block on a slope or a flat surface, wherein the concrete block is divided into an upper block and an lower block whose upper part is formed in an irregular shape, After laying the lower block on a slope or a flat surface, the upper block is movably assembled on the upper part of the lower block and laid between the upper blocks without a gap,
It is possible to provide a revetment construction method capable of constructing a revetment excellent in appearance design and improving workability.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a first embodiment of the present invention.

FIG. 3 is a sectional view of a revetment showing a first embodiment of the present invention.

FIG. 4 is a plan view of the main part of the seawall showing the first embodiment of the present invention.

FIG. 5 is a partially cutaway side view showing a second embodiment of the present invention.

FIG. 6 is a partially cutaway side view of an essential part showing a third embodiment of the present invention.

FIG. 7 is a partially cutaway side view showing a fourth embodiment of the present invention.

FIG. 8 is a perspective view showing a fourth embodiment of the present invention.

FIG. 9 is a sectional view of a seawall showing a fourth embodiment of the present invention.

FIG. 10 is a plan view of an essential part of a seawall showing a fourth embodiment of the present invention.

FIG. 11 is a partially cutaway side view showing a fifth embodiment of the present invention.

FIG. 12 is a front view showing a sixth embodiment of the present invention.

FIG. 13 is a partially cutaway side view showing a sixth embodiment of the present invention.

FIG. 14 is a plan view of a lower block showing a sixth embodiment of the present invention.

FIG. 15 is a perspective view showing a sixth embodiment of the present invention.

FIG. 16 is a sectional view of a seawall showing a sixth embodiment of the present invention.

FIG. 17 is a plan view of an essential part of a seawall showing a sixth embodiment of the present invention.

FIG. 18 is a cross-sectional view illustrating a construction state showing a sixth embodiment of the present invention.

FIG. 19 is a front view showing a seventh embodiment of the present invention.

FIG. 20 is a partially cutaway side view showing a seventh embodiment of the present invention.

FIG. 21 is a perspective view of an upper block showing an eighth embodiment of the present invention.

FIG. 22 is a partially cutaway side view showing an eighth embodiment of the present invention.

FIG. 23 is a front view showing a ninth embodiment of the present invention.

FIG. 24 is a partially cutaway side view showing a ninth embodiment of the present invention.

FIG. 25 is a front view showing a tenth embodiment of the present invention.

FIG. 26 is a side view showing a tenth embodiment of the present invention.

FIG. 27 is a perspective view showing a tenth embodiment of the present invention.

FIG. 28 is a sectional view of a seawall showing a tenth embodiment of the present invention.

FIG. 29 is a plan view of an essential part of a seawall showing a tenth embodiment of the present invention.

FIG. 30 is a front view showing an eleventh embodiment of the present invention.

FIG. 31 is a partially cutaway side view showing an eleventh embodiment of the present invention.

FIG. 32 is a plan view of a lower block showing the eleventh embodiment of the present invention.

FIG. 33 is a perspective view showing an eleventh embodiment of the present invention.

FIG. 34 is a sectional view of a seawall showing an eleventh embodiment of the present invention.

FIG. 35 is a plan view of an essential part of a seawall showing an eleventh embodiment of the present invention.

FIG. 36 is a sectional view of a lower block showing a twelfth embodiment of the present invention.

FIG. 37 is a plan view of a lower block showing a twelfth embodiment of the present invention.

FIG. 38 is a sectional view of a lower block showing a thirteenth embodiment of the present invention.

FIG. 39 is a plan view of a lower block showing a thirteenth embodiment of the present invention.

FIG. 40 is a front view showing a fourteenth embodiment of the present invention.

41 is a partially cutaway side view showing a fourteenth embodiment of the present invention. FIG.

42 is a partially cutaway side view showing a fifteenth embodiment of the present invention. FIG.

FIG. 43 is a front view showing a sixteenth embodiment of the present invention.

FIG. 44 is a partially cutaway sectional view showing a sixteenth embodiment of the present invention.

FIG. 45 is a front view showing a seventeenth embodiment of the present invention.

FIG. 46 is a side view showing a seventeenth embodiment of the present invention.

FIG. 47 shows a seventeenth embodiment of the present invention, which is taken along the line AA of FIG. 46.
It is a line sectional view.

FIG. 48 is a perspective view showing a seventeenth embodiment of the present invention.

FIG. 49 is a sectional view of a seawall showing a seventeenth embodiment of the present invention.

FIG. 50 is a plan view of an essential part of a seawall showing a seventeenth embodiment of the present invention.

FIG. 51 is a side view showing a conventional example.

[Explanation of symbols]

 2,22,22A Upper block 3,23,23A Lower block 9 Projection 9A Projection 13 Groove 13A Recessed groove 31 Projection 34 Transverse groove

Claims (3)

(57) [Claims] 1. A method of constructing a seawall in which a concrete block is laid on a slope or a flat surface, wherein the concrete block is divided into an upper block and an lower block, the upper part of which is formed in an irregular shape, and the lower block is formed. A method for constructing a revetment, which comprises laying a block on a slope or a flat surface, movably assembling an upper block on an upper portion of the lower block, and laying the upper blocks without a gap therebetween. 2. The method for constructing a revetment according to claim 1, wherein after the lower block is laid, the upper block is assembled from the upper part of the lower block. 3. The method for constructing a revetment according to claim 1, wherein after the lower block is laid, the upper block is assembled from the side portion of the lower block.