JP6687987B2 - Standing structure of riverbed - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a standing structure for flood prevention provided on a riverbed, and more particularly to a standing structure for a riverbed that can be used as a bench or the like.

  Generally, in a large river such as a first-grade river or a second-grade river, as shown in FIG. 6, a high water basin 92 is provided via slopes on both sides of the low waterway 91, and further, on both sides of the slope. A horizontal top end 94 is provided via the surface 93. By constructing a dike with the slope 93 and the crown 94, the flood of the river is prevented when the water level increases.

  By the way, in recent years, heavy rainfall has frequently occurred due to global warming, and along with this, many floods of rivers have been reported. For this reason, it is necessary to build a high embankment on both banks, but even if the embankment is raised in this way, unexpected flooding will cause flooding beyond the embankment. In this way, if water overflows over the levees, the levees will be scraped off by the water, which will lower the levees and cause a catastrophic disaster.

  Therefore, in order to prevent the flooding of the river during such a flood, a dike device as shown in FIG. 5 has been proposed (Patent Document 1).

  This levee device is provided with a levitating body 95 capable of levitating in the levee, and when the water level rises, water flows in from the lateral direction of the hole portion 96 so that the levitating body 95 rises, thereby raising the wall surface along the riverbed. It is designed to prevent flooding of rivers.

Japanese Patent Laid-Open No. 10-280357

  However, such an embankment device requires excavation of the embankment along the entire river to bury the wall surface, which requires enormous cost for the construction work, and causes dirt and weeds to enter the excavated space. There is a high possibility that it may not cause buoyancy in an emergency.

  On the other hand, the top of such a riverbed is usually used as a walk, jogging, or a cycling course for residents in the vicinity.Therefore, building a large dike not only impairs the convenience of the user but also the scenery. May be damaged.

  Therefore, the present invention has been made in view of the above-mentioned problems, and makes it possible to prevent the flooding of rivers when the water level rises, and to maintain the landscape without impairing the convenience of neighboring residents during normal times. The purpose is to provide a standing structure for the riverbed.

That is, the standing structure of the riverbed of the present invention, in order to solve the above problems, is provided intermittently in the riverbed, with the upper surface to be planar , a vertically elongated slit that spreads in a taper shape toward the side direction. A columnar body provided on the side surface and a plate-like body provided on the side surface of the columnar body and provided so as to be inserted between adjacent columnar bodies are provided.

According to this structure, since the top surface of the columnar body is flat, the top surface can be used as a seating surface, and can be used as a resting place when jogging, cycling, or taking a walk. . In addition, the wall surface can be formed by inserting the plate-shaped body between the adjacent columnar bodies, and it becomes possible to prevent the flooding of the river in an emergency and to stand along the curved river. Even when the plate-like body is inserted into the provided columnar body, the plate-like body can be inserted while being inclined along the direction.

In addition to the columnar body, a slit body for inserting the plate body is independently provided, and a second slit portion for inserting the slit body is provided on a side surface of the columnar body.

  According to this structure, even when a plate-shaped body having a different thickness dimension is inserted, a thick plate-shaped body can be inserted to form a wall surface by replacing the slit body with another slit body. Like

  Further, the slit body is provided in a taper shape in the side surface direction of the columnar body.

  According to this structure, by inserting the slit body from the top of the columnar body, it is possible to prevent the slit body from coming off in the lateral direction and to fix the slit body.

  In addition, a piercing body that pierces the ground and regulates the movement of the columnar body is provided on the bottom surface of the columnar body.

  According to this structure, the columnar body can be prevented from being displaced by the water pressure, and the damage caused by the water overflow can be prevented as much as possible. In particular, if such a piercing body is made up of L-shaped rebars, the work for burying the pillars in the ground is unnecessary, and a large number of pillars can be installed in a short time. It will be possible to fix it.

According to the present invention, a columnar body which is provided intermittently on the riverbed and has a flat upper surface, and which has a vertically elongated slit that spreads in a taper shape in the side direction on the side surface, and is provided on the side surface of the columnar body. Since it has a plate-shaped body that can be inserted between adjacent columnar bodies, the upper surface of the columnar body can be used as a seating surface, and as a resting place when jogging, cycling, or walking. You will be able to use it. In addition, the wall surface can be formed by inserting the plate-shaped body between the adjacent columnar bodies, and it becomes possible to prevent the flooding of the river in an emergency and to stand along the curved river. Even when the plate-like body is inserted into the provided columnar body, the plate-like body can be inserted while being inclined along the direction.

The figure which shows the standing structure of the riverbed in one embodiment of this invention Schematic showing a columnar body in the same form The figure which shows the state which has arrange | positioned the columnar body in the non-linear direction in the same form. The figure which shows the columnar body in other embodiment. Figure showing the flood prevention structure in the conventional example Diagram showing each part in a large river

  An embodiment of the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the standing structure 1 of the riverbed in this embodiment is provided in a flat portion such as the top end 94 of the riverbed, and is a columnar body 2 which is erected intermittently. Alternatively, a plate-like body 4 inserted between the columnar bodies 2 and a piercing body 6 (see FIG. 2) for restricting the movement of the columnar bodies 2 are provided. The plate-like bodies 4 thus provided between the columnar bodies 2 ensure the height of the embankment and prevent flooding of the river when the water level rises, and the columnar bodies provided intermittently. By making the upper surface 22U of No. 2 flat, it can be used as a seating surface and can be used as a resting place for those who are taking a walk or jogging. Hereinafter, the present embodiment will be described in detail.

  First of all, the columnar body 2 is provided on a relatively flat part such as a high riverbed or a top of a riverbed, and is made of concrete or metal. It has a height of about 35 cm to 60 cm so that it can be seated, and is provided with a size of 40 cm to 60 cm on one side so that the person can sit. At this time, if the columnar body 2 is formed over several tens of meters, a large wall can be formed by the wall surface, but the scenery becomes worse and the cost for construction increases. Therefore, here, the columnar body 2 is configured to have a size that allows an average-sized person to sit down.

  The upper surface 22U of the columnar body 2 is formed into a flat surface so that a person can sit on it, so that it is possible to take a break during a walk or jogging. Note that the term “planar” here also includes the case of having a slightly curved shape corresponding to a human hip. A ring member 22a for suspending the columnar body 2 by a crane when the columnar body 2 is installed is detachably attached to the upper surface 22U of the columnar body 2. After the columnar body 2 is installed, the ring member 22a can be removed, and the columnar body 2 can be covered with a cap (not shown) to form a flat surface. The ring member 22a and the lid are also provided on the plate-shaped body 4.

  The columnar body 2 thus formed is erected on the ground surface, and the movement of the columnar body 2 is restricted by providing the piercing body 6 having the piercing portion 62 on the bottom surface thereof to increase the water pressure during the water increase. To endure.

  Such columnar bodies 2 are intermittently provided on the riverbed. The space is set to be, for example, about 1 m to 3 m so that the strength against the water pressure applied to the plate-like body 4 can be ensured, and the distance between the seated person and the adjacent person can be shortened to be used by a couple or the like. Keep it.

  As shown in FIG. 2, the side surface 22S of the columnar body 2 thus provided is provided with a slit portion 21 along the up-down direction. The slit portion 21 is configured such that the plate-shaped body 4 is inserted and attached between the adjacent columnar bodies 2, and is provided with a length corresponding to the height dimension of the plate-shaped body 4. At this time, if the height of the slit portion 21 is short, the plate-shaped body 4 projects from the upper surface 22U of the columnar body 2 when the plate-shaped body 4 is inserted, and the upper surface 22U is used as a seat surface. Can't do it. On the other hand, if the height dimension of the slit portion 21 is made too long, the upper surface 22U of the columnar body 2 will be recessed in the slit, and the upper surface 22U cannot be made flat. Therefore, here, the length of the slit portion 21 is set to the height dimension of the plate-like body 4 so that the plate-like body 4 can make the upper surface 22U of the columnar body 2 planar. Although the heights of the columnar body 2 and the plate-shaped body 4 are made uniform here, the heights of the plate-shaped body 4 may be slightly different.

  When the plate-like body 4 is inserted into the slit portion 21, if the columnar body 2 can be linearly arranged, the slit portion 21 is formed into a rectangular shape according to the shape of the end portion 41 of the plate-like body 4. However, if the river meanders, the columnar bodies 2 must be arranged along the meandering direction. Further, when an obstacle such as a tree exists at the place where the columnar body 2 is desired to be installed, the columnar body 2 must be arranged in a non-linear manner. In such a case, if the slit portion 21 is formed in a rectangular shape, it becomes impossible to absorb the inclination of the plate-shaped body 4 in the left-right direction. On the other hand, if the width of the slit portion 21 is increased, the plate-shaped body 4 may be rattled, and a finger may be caught in the gap. Therefore, in this embodiment, as shown in FIGS. 2 and 3, the opening 23 on the side surface 22S side of the columnar body 2 is made wider than the thickness of the plate-like body 4, and the width dimension of the depth 24 thereof is set. The tapered shape is set to approximately the thickness of the plate-shaped body 4. With such a configuration, it is possible to eliminate rattling when the plate-shaped body 4 is inserted, and even when the plate-shaped body 4 is tilted in the left-right direction as shown in FIG. The plate-like body 4 can be tilted in the wide gap of the opening 23. Although the opening 23 on the side surface 22S side of the columnar body 2 is widened and tapered here, conversely, the opening 23 side is set to be about the thickness of the plate-like body 4 and the depth is widened. It may be tapered. Even in such a case, it is possible to prevent the plate-shaped body 4 from rattling on the side of the opening 23 and to install the plate-shaped body 4 by changing the angle.

  In addition, when such a plate-like body 4 is provided, the plate-like body 4 having a different thickness may be provided and modified so as to withstand water pressure. Therefore, the plate-shaped body 4 can be inserted in the second embodiment as shown in FIG.

  In the form of FIG. 4, the side surface 22S of the columnar body 2 is provided with the second slit portion 31 for inserting the slit body 3 having the slit portion 21. The second slit portion 31 is provided on the side surface 22S of the columnar body 2 along the longitudinal direction, while the slit body 3 inserted therein is flush with the upper surface 22U of the columnar body 2. Is provided.

  Here, when the slit body 3 is inserted, it can be inserted from the side surface direction or the upper direction of the columnar body 2, and the plate-like body 3 can be sandwiched by the left and right columnar bodies 2. In another embodiment, the slit body 3 is formed in a tapered shape in order to prevent the slit body 3 from coming off in the direction of the side surface 22S, and the second slit portion 31 similarly formed in a tapered shape is provided with a slit body 3 from above. It is also possible to insert so that it does not come off in the direction of the side surface 22S. Then, after the slit body 3 is thus inserted, the plate-like body 4 is inserted into the slit portion 21 provided in the slit body 3 so that a wall surface is provided between the adjacent columnar bodies 2.

  A piercing body 6 for preventing the columnar body 2 or the like from moving due to water pressure is provided on the columnar body 2 or the plate-like body 4. This piercing body 6 is provided by bending a reinforcing bar, and as shown in FIG. 2, it is bent along a bottom surface of the columnar body 2 and a side surface contact portion 61 that contacts the side surface of the columnar body 2. A piercing part 62 that pierces the ground is provided. The piercing portion 62 is provided so as to be located in the central portion of the columnar body 2, and thus the weight of the columnar body 2 pierces the ground. On the other hand, the side contact portion 61 side is provided by bending the reinforcing bar, and even if the person sits on the columnar body 2, the sharp tip end of the reinforcing bar will injure a human leg or the like. I try not to let it. Although the piercing body 6 is composed of a separate reinforcing bar here, when the concrete of the columnar body 2 or the plate-shaped body 4 is molded, the piercing body 62 is integrally formed so as to project from the central portion. It may be provided in the. Further, although the piercing body 6 is provided on the columnar body 2 here, the piercing body 6 may be provided on the plate-shaped body 6 similarly.

As described above, according to the above-described embodiment, the columnar body 2 that is intermittently provided on the riverbed and has the upper surface 22U that is planar and that has the vertically elongated slit portion 21 that tapers in the lateral direction on the side surface. And the plate-like body 4 provided on the side surface 22S of the columnar body 2 so as to be inserted between the adjacent columnar bodies 2 are used. Therefore, the upper surface 22U of the columnar body 2 is used as a seating surface. It can be used as a resting place when jogging, cycling, or taking a walk. In addition, the wall surface can be formed by inserting the plate-shaped body 4 between the adjacent columnar bodies 2, and it becomes possible to prevent the flooding of the river in an emergency, and along the curved river. Even when the plate-shaped body 4 is inserted into the vertically-arranged columnar body 2, the plate-shaped body 4 can be inserted while being inclined along the direction.

Further , as shown in FIG. 4, a slit body 3 for inserting the plate-like body 4 is provided separately from the columnar body 2, and the slit body 3 is inserted into the side surface 22S of the columnar body 2. By providing the second slit portion 31 for forming the thick plate-shaped body 4 by replacing the slit body 3 with another slit body 3 even when the plate-shaped bodies 4 having different thicknesses are inserted. Can respond.

Further , if the slit body 3 is provided in a taper shape toward the side surface of the columnar body 2, the slit body 3 is inserted from above the columnar body 2 so as to be removed in the direction of the side surface 22S. Is eliminated, and the slit body 3 can be fixed.

  Further, since the piercing body 6 (the piercing portion 62) which pierces the ground to regulate the movement of the columnar body 2 is provided on the bottom surface of the columnar body 2, the displacement of the columnar body 2 due to water pressure is prevented. It will be possible to prevent damage due to flooding.

  The present invention is not limited to the above-mentioned embodiment, but can be implemented in various modes.

  For example, in the above embodiment, the columnar body 2 having a rectangular shape has been described as an example, but the columnar body 2 having a cylindrical shape may be used.

  Further, in the above-described embodiment, the plate-shaped body 4 is attached between the column-shaped bodies 2 and the column-shaped body 2. However, when it is not necessary to attach the plate-shaped body 4 in fine weather, the plate-shaped body 4 is attached. Alternatively, the plate-shaped body 4 can be used as a guardrail having vertically parallel rod-shaped bodies.

  Further, in the above-described embodiment, the columnar body 2 has a height of about 35 cm to 60 cm and a side of about 40 cm to 60 cm, but the size is not limited to this, and a person sits on the upper surface 22U. Any material can be used as long as it can withstand the water pressure when increasing water. As another example of such a columnar body 2, a horizontally long bench-like body may be used.

  Further, in the above-described embodiment, the plate-shaped body 4 is attached, but an inclination sensor is attached to the plate-shaped body 4 so that an alarm is output when the inclination is detected by the inclination sensor. May be. By doing so, when the plate-shaped body 4 is inclined by the water pressure, it is possible to notify the flood of the river and promptly evacuate neighboring residents. When mounting such an inclination sensor, it is preferable that a rod-shaped body is erected so as to be in contact with the plate-shaped body 4 and that the inclination sensor having a sensor portion is attached to the upper end thereof. By doing so, in addition to detecting the inclination of the plate-shaped body 4, when water overflows beyond the plate-shaped body 4, tilting of the rod-shaped body can promptly inform neighboring residents of the flooding of the river. become able to.

  Further, in the above-described embodiment, the plate-like body 4 is provided by being inserted into the central portion of the columnar body 2, but if this is done, unevenness will be created on the wall surface on the river side, so that there will be a flow direction. Water pressure will be applied along the line. Therefore, a plate-like body 4 having a shape such that the wall surface on the river side is flush with the columnar body 2 may be provided. In this case, the plate-shaped body 4 includes a portion to be inserted into the slit, a stepped portion that abuts the side surfaces 22S of the adjacent columnar bodies 2 facing each other, and a wall surface that is flush with the river-side wall surface of the columnar body 2. It becomes a shape having.

DESCRIPTION OF SYMBOLS 1 ... Standing structure 2 ... Columnar body 21 ... Slit part 22U ... Upper surface 22S ... Side surface 22D ... Lower part 23 ... Opening 24 ... Back 3 ... Slit body 31 ... Second slit portion 32 ... Opening portion 33 ... Back 4 ... Plate-like body 41 ... End portion 5 ... Puncture body 51 ... Side contact portion 52 ...・ Puncture

Claims (4)

A columnar body that is provided intermittently on the riverbed and has a flat upper surface, and has vertically long slits that spread in a taper shape toward the side surface on the side surface,
A plate-shaped body provided on the side surface of the columnar body and provided so as to be inserted between adjacent columnar bodies,
The standing structure of the riverbed constructed with. Further, in addition to the columnar body, a slit body for inserting the plate-shaped body is independently provided,
The standing structure of the riverbed according to claim 1, wherein a second slit portion for inserting the slit body is provided on a side surface of the columnar body. The standing structure of a riverbed according to claim 2 , wherein the slit body is provided in a taper shape in the side surface direction of the columnar body. The standing structure of the riverbed according to claim 1, wherein a piercing body that pierces the ground to regulate the movement of the columnar body is provided on the bottom surface of the columnar body.

Images