JPH0649517U - Non-penetrating gentle slope revetment block - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] The purpose of this plan is to protect coasts and beaches at coastal conservation facilities, port facilities, fishing port facilities, etc. It is an object of the present invention to provide a non-penetrative, gently sloping revetment block that is highly safe and hydrophilic for covering the uppermost layer of revetments and the like. [Structure] The present invention is configured to have a rectangular shape in a plane, and
Floor base 1A in which parallel upper and lower surfaces 1A1 and 1A2 are inclined surfaces with a front lower and a rear higher than a horizontal surface 1B
A columnar column 1C is planted on the upper surface of the column, and a disc-shaped upper panel 1D is stretched in a horizontal state on the upper surface of the columnar column, which is a non-penetrating gently sloping revetment block. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This plan relates to a non-penetrating gently sloping revetment block, and more specifically, it is used to protect coasts and beaches at coastal conservation facilities, port facilities, fishing port facilities, etc., and to install water fronts with high hydrophilicity. The present invention relates to a safe and hydrophilic non-penetrating gently sloping revetment block for covering the uppermost layer of a sloping revetment.

[0002]

[Prior art]

 Conventionally, this kind of thing is as follows. 1) There is a void in the block that allows waves to penetrate into the ground, and the waves penetrate from there to reduce the wave energy. 2) The top surface of the block is flat or has a simple step, and it is easy to walk, but the energy of the wave is reduced mainly by making the slope of the slope gentle. 3) There are non-penetrable blocks, but the space between the floor and the top is straight and has a constant width.

[0003]

[Problems to be solved by the device]

 The conventional techniques described above have the following problems. 1) When waves travel up or down the block through the voids in the block, a pressure difference is generated between the upper and lower parts of the block, and the sand and the like in the lower part of the block are sucked out and often sink. 2) Since the shape of the top surface of the block is simple, the waves move more evenly over the block, resulting in less energy loss, high run-up of waves, high reflectance, and the ability to prevent waves from being launched. It was weak, and the front of the seawall was easily scoured, which hindered the stability of the block. 3) Even with a non-penetrating block, energy loss is small because it flows linearly through the space between the floor and the upper floor.

The present application has been made in view of such problems of the conventional technique, and an object of the present application is to provide the following things. 1) Prevent the suction of sand and the like from the bottom surface of the block by minimizing the gaps between the blocks and between the blocks. 2) When the wave goes up and down, the energy of the wave is further reduced, so that the block top surface has an obstruction, and the flow due to the wave is between the block top surface and the floor part of the block. By adopting a two-layer structure that flows through the space of the block, the function of reducing the wave energy by allowing waves to permeate to the lower surface of the block through the gap of the block was added to the upper structure of the block. 3) The flow that moves up and down in the space between the floor part and the upper part of the block is forcibly made into a zigzag flow or the flow path is contracted and expanded by the column of the block. It has the function of reducing wave energy.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is as follows. That is, the one according to the present application has a flat rectangular shape, and the parallel upper and lower surfaces 1A1, 1A2 are inclined surfaces with respect to the horizontal surface 1B such that the front is low and the rear is high. A column-shaped column portion 1C is planted, and a disc-shaped upper plate portion 1D is stretched horizontally on the upper surface of the column-shaped column portion, which is a non-penetrating gently sloping revetment block.

[0006]

【Example】

 Examples will be described with reference to the drawings. No. 1 is the non-penetrating gently sloping revetment block of the present invention, the structure of which is as follows. Reference numeral 1A is a floor base which is formed in a flat rectangular shape and whose parallel upper and lower surfaces 1A1 and 1A2 are inclined planes in which the front is lower and the rear is higher than the horizontal plane 1B. A columnar column 1C is planted in the column, and a disc-shaped upper panel 1D is stretched horizontally on the upper surface of the columnar column. In this case, the side wall portions 1A3 of the floorboard portion are vertically arranged. Further, the diameter of the upper board portion 1D and the length of each side of the floor board portion are substantially the same. The following dimensions are suitable. Floor base 1A length of one side ~ 130.0 cm, floor base 1A thickness ~ 30.0 cm, upper floor diameter ~ 130.0 cm, non-penetrating gently sloping revetment block 1 front height ~ 86.0 cm, the height of the rear surface of the non-penetrating gently sloping bank 1 ~ 60.0 cm.

The device of the present invention operates as follows. 1) When a wave hits the revetment, the energy of the wave is lost due to the resistance of the pillar 1C as it travels up the upper deck 1D and goes through the space between the pillar 1C. To do. 2) The wave running up on the upper board 1D also loses energy due to the difference in the level of the upper board 1D of the adjacent blocks on the front and rear of the slope, so the run-up height of the wave is extremely small. . 3) When the wave flows down, energy is lost while the flow is stepped down due to the difference in the level of the upper deck 1D, and because it passes through the space between the floor and the upper deck of the block, The wave further loses energy due to the resistance of the column 1C. For this reason, the force of the backwash wave is weakened and the reflected wave becomes smaller, so that the interaction with the next wave is less likely to occur on the block, and because the breaking wave does not occur, the block is stable and the front scouring is good. It also reduces

[0008]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. 1) Since the floor part 1A has a square shape, when arranged, there are no voids and no sand is sucked out. 2) Since the upper surface of the upper part 1D has a stepped shape, energy loss occurs each time a wave passes. 3) When flowing between the pillars 1C, energy is lost due to the resistance of the pillars 1C. 4) Upper part 1D is more horizontal than the slope of the ground, so it is easy to walk.

[Brief description of drawings]

FIG. 1 is a front view of a non-penetrating, gently sloping revetment block of the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is a right side view of the above.

FIG. 4 is a side view of the above.

FIG. 5 is a perspective view of the same attachment state as above.

[Explanation of symbols]

 1 Non-penetration type gentle slope revetment block 1A Floor part 1A1 Upper surface 1A2 Lower surface 1A3 Side wall part 1B Horizontal surface 1C Support part 1D Upper part

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Mitsuru Hirasawa Inventor Mitsunari Hirasawa 1-3-3, Hiragishi, Toyohira-ku, Sapporo City Civil Engineering Research Laboratory, North Kaido Development Bureau (72) Inventor Tetsumi Takahashi 1 Hiragishi, Toyohira-ku, Sapporo 3- 1-34 Kita Kaido Development Bureau, Research Institute for Civil Engineering (72) Inventor, Ei Ozawa 2-8, Kita 7-jo Nishi, Kita-ku, Sapporo-shi Incorporated Hojin Cold Area Technology Research Center (72) Inventor, Fujio Hoshi Sapporo City Kita-ku Kita-ku Kita-ku Nishi 2-chome 8 Incorporated corporation method people cold area port technology research center

Claims (1)

[Scope of utility model registration request] 1. A floorboard part (1) having a flat rectangular shape and having parallel upper and lower surfaces (1A1, 1A2) formed as an inclined surface having a lower front and a higher rear with respect to a horizontal plane (1B).
A columnar strut portion (1C) is planted on the upper surface of A), and a disc-shaped upper disc portion (1D) is stretched in a horizontal state on the upper surface of the columnar strut portion. Non-penetrating type gentle slope revetment block.