JP4897957B2 - Anti-slip mechanism on stair type gentle slope revetment - Google Patents

Description

  The present invention relates to a slip prevention mechanism in a staircase type gentle slope revetment, and in particular, has a function of capturing sand at a dangerous place where a pedestrian slips and falls easily, and the seawall, river, lake, etc. It is related to the slip prevention mechanism in the stair type gentle slope revetment that is applied to.

  Conventionally, a gentle slope revetment in a coast, a river, a lake or the like is generally formed by building a plurality of concrete revetment blocks in a staircase shape. Or it is constructed by placing concrete in the form of stairs. In such a gentle slope revetment, algae and the like adhere to the surface of the revetment block near the shore and become slippery. For this reason, when a person walks on the stair-shaped revetment block to which the algae or the like is attached or on the concrete cast-in-place on the site, there is a danger of slipping and falling.

In view of this, a mechanism for preventing slippage of a wetted surface described in Patent Document 1 has been proposed as a measure for preventing the above danger. The slip prevention mechanism described in Patent Document 1 is formed by forming an edge on the block surface, arranging a large number of flexible rod-like bodies in the block, and filling the gaps between the rod-like bodies with fine particles. Is.
Japanese Patent No. 2599266

The invention described in Patent Document 1 has the following problems.
a: A rod-shaped body is a substance having flexibility, and when there is no fine particle between the rod-shaped bodies, there is a risk of slipping when a person walks on the rod-shaped body, and on the rod-shaped body When a human load is applied, the rod-shaped material is bent, and there is a risk that the person loses balance and falls.
b: When the rod-like body is scattered due to the influence of the waves, the effect as a countermeasure work cannot be exhibited.
c: Since many rod-shaped bodies are installed on the surface, the construction period becomes longer.
d: When fine particles are not deposited, the rod-like body is very conspicuous on the upper surface of the staircase and damages the landscape.

  Therefore, in view of the defects of the invention described in Patent Document 1, in the gently inclined revetment built on the coast or the like, the sand is efficiently captured, the place where the algae adheres is eliminated, and the captured sand is blocked. There are technical issues that need to be solved in order to propose a slip prevention mechanism for stair-type gently inclined revetments that can remove the algae attached on the block by moving the surface, and can surely exert a slip prevention effect. The present invention aims to solve this problem.

The present invention has been proposed in order to achieve the above object, and the invention according to claim 1 is a step-type gentle slope revetment constructed by constructing a number of revetment blocks in a step-like manner, near the waterfront. A staircase type in which a plurality of strip-shaped projections are juxtaposed in a horizontal direction with a predetermined interval on the top surface of each revetment block at a location immersed in seawater, and further, sand is filled between the strip-shaped projections and deposited. It is intended to provide a slip prevention mechanism for gently inclined revetments.

  According to this configuration, the streak protrusions provided on the surface of each gently inclined revetment built in a staircase shape captures the sand filled between the equal streak protrusions and prevents the outflow. Therefore, the pedestrian walks on the sand surface on the gentle slope revetment.

The invention of claim 2, in the stepped gentle slope revetment bank formed by construction a number of revetment blocks stepwise multiple conditions in the revetment block top surface at a point A near the water's edge is submerged seawater the Jo projections juxtaposed laterally with a predetermined interval, further, between each row-like projections, sand can deposition, and, laid nonwoven fabric having irregularities and gaps, a woven fabric or mat, the nonwoven fabric , there is provided a slip prevention mechanism in stepped gentle slope revetment bank deposited to fill the sand on the upper surface of the woven fabric or matte.

According to this arrangement, stepwise laid between each strip-shaped projections provided on the gentle slope seawall bank surface, which is construction nonwoven, woven or mat is this like nonwoven, woven fabric or matte The sand filled above is captured more efficiently and prevented from flowing out, so that the pedestrian can always walk on the sand surface.

Furthermore, the invention of claim 3, wherein the above article like projection is to provide a rubber, plastic, concrete, a slip prevention mechanism in stepped gentle slope revetment bank made either et wood or iron.

According to this configuration, the above-mentioned line-shaped protrusion can be formed of any member of rubber, plastic, concrete, wood, or iron , and the workability is good.

Further, the invention is cross-sectional shape of the strip-like projection is polygonal claim 4, a semicircular, while capturing the run-up airborne sand, formed so as to be able to suppress the outflow of sand to offshore It is intended to provide a slip prevention mechanism for the staircase type gentle slope revetment.

  According to this configuration, by adopting the cross-sectional shape of each of the above-mentioned line-like projections, the rising sand is captured and the sand accumulated between each of the line-like projections is prevented from flowing out to the offshore side. .

  Furthermore, the invention described in claim 5 provides a slip prevention mechanism in a step-type gentle slope revetment in which the above-mentioned streak is processed so that algae and slime do not adhere.

  According to this configuration, the strip-shaped protrusion is subjected to surface processing by painting with an anti-algae coating, photocatalytic coating, or coral spraying.

  In the first aspect of the invention, the streak provided on the surface of each gently inclined revetment built in a staircase shape captures the sand accumulated between each streak, and each streak Since it prevents outflow from between the protrusions, when a pedestrian walks on the gently inclined revetment, he always walks on the sand surface, thus preventing the risk of slipping and falling. Is done. Further, the sand accumulated between the strip projections moves between the strip projections on the surface of the gently inclined revetment block to scrape off algae and slime adhering to the upper surface of the gently inclined revetment block, etc. The effect of. Thus, a pedestrian can walk on the gentle slope revetment extremely safely.

According to a second aspect of the invention, a nonwoven fabric laid in between each row-like projections provided on the gentle slope seawall crest surface, sand well caught and which is filled more this upper surface woven or matte In order to prevent the outflow, sand is always deposited on the surface of each inclined revetment, and therefore, pedestrians will walk on this sand surface, there is no danger of slipping and falling, etc. It is possible to walk safely.

In the invention described in claim 3, since the streak protrusion can be formed of any material of rubber, plastic, concrete, wood, and iron, in addition to the effect of the invention described in claim 1 or 2, in particular, a gentle slope Workability at the time of constructing the present invention on the revetment becomes good.

Fourth aspect of the present invention, by forming the sectional shape of the strip-like projections on either polygonal, semicircular, shore, floating sand runup in rivers trapped between該条like projection And the outflow to the offshore side of the sand accumulated between the strip-like projections is suppressed. Thus, the effect of capturing sand and preventing outflow in the invention of claim 1, 2 or 3 can be further subsidized.

  In the invention described in claim 5, the strip protrusions are coated with an alga-proof paint or processed by photocatalyst coating or coral spraying, so that in addition to the effects of the invention described in claims 1, 2, 3 or 4 above, Even if a pedestrian walks on the ridge-like projection, it is possible to walk on the gentle slope revetment even more safely without slipping.

In order to achieve the purpose of the present invention to enable a safe walk without slipping by algae even when a person walks on a gentle slope revetment built on the coast or the like, a number of revetment blocks are used as stairs. In the staircase type gentle slope revetment constructed in a shape, a plurality of strip-like projections are arranged side by side with a predetermined interval on the top surface of each revetment block in the vicinity of the shore and where it is immersed in seawater , Furthermore, the present invention has been realized by providing a slip prevention mechanism in a stair type gentle slope revetment characterized in that sand is filled and deposited between the strip-shaped projections.

  Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a plan view showing a gently inclined revetment 1. The gentle slope revetment 1 is constructed on the coast, rivers, lakes, and the like, and is generally constructed by constructing a number of concrete revetment blocks 2, 2. Or it is built by a concrete casting stairs method. In such a gently inclined revetment 1, algae, slime, etc. adhere to the revetment blocks 2, 2.

For this reason, when a person walks on the revetment blocks 2, 2, etc. to which the algae or the like are attached, the person may slip and fall or be injured. Thus, due to natural phenomena at the water's edge, there are places where algae adhere and slip easily, and places where algae do not adhere easily. Was classified as a human entry point Z. Therefore, in FIG. 1 , a large number of natural stones 3, 3... Are stacked at a predetermined height so as to prevent people from entering the left and right sides of the lower half of FIG. The person's non-entry points W and W are provided, and a person's non-entry point W is provided between the person's non-entry points W and W, so that the person's non-entry point W and the person's approach path Z are separated. Thus, the places where the algae is likely to adhere and the places where the algae are not attached as described above are caused by the amount of waves rising upstream, the degree of wave pulling upstream, water washing around the waterfront, terrain or wave-dissipating blocks. The location where the algae are attached and the location where the algae are not likely to occur are generated at the waterside, depending on the arrangement state of the rocks, other rocks, the direction of the ocean current, and the like. This phenomenon is obvious. Of course, the layout of the person's non-entry location W and the person's approach passage Z is arbitrarily determined according to the natural phenomenon .

  Thus, the person's approach passage Z is near the shore such as the coast, and therefore, it is inundated by seawater and algae adheres, and when a person walks, it becomes a slippery and dangerous place. Therefore, in this dangerous place, that is, the revetment blocks 2, 2... Of the gentle slope revetment 1 in the human approach passage Z, strip-like protrusions 4, 4. Yes. The predetermined interval L can be such that a person's foot can enter.

  Thus, sand 5, 5... Is filled between the front and rear protrusions 4, 4. Therefore, the filled sand 5, 5... Is trapped and accumulated between the front and rear strip projections 4, 4, and is prevented from flowing out from the strip projections 4, 4,.

  FIG. 2 is a partially cutaway plan view of the gently inclined revetment 1 constructed in a staircase shape, and FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 and 3, the revetment blocks 2, 2... Are constructed in three stages, and each revetment block 2, 2... Has a predetermined interval L between the front end and the rear end. Five strip-shaped protrusions 4 are provided substantially in parallel in the direction (horizontal direction).

  It should be noted that the interval L can be formed to the extent that a person's foot can enter. When this is the case, it is possible to ensure that the sand 5, 5... Filled between the strip protrusions 4, 4... Is caught, and a person walks on the sand 5, 5. It will be suitable to do. Of course, it should not be limited to such a configuration.

In addition, filling although not shown in the drawings, the strip-shaped projections 4, 4 ... non-woven fabric having an uneven and the gap to the extent that there is no hindrance to walking each person is in between, a woven fabric, said the matte sand 5,5 ... the laid before and this like nonwoven, filling the sand 5,5 ... on the upper surface of the woven fabric or matte. In this case, the sand 5, 5... Is captured between the strip projections. However, by laying the nonwoven fabric etc., the sand 5, 5. When walking, the slipping of the foot is prevented, and it is possible to safely walk on the gently inclined revetment 1.

  Further, even if the algae try to adhere to the gently inclined revetment 1, the algae are scraped off by the movement of the sand 5, 5 ... following the flow of seawater between the strip-like projections 4, 4, ... Therefore, even if a person walks on the approach path Z of the person, it is possible to walk safely without falling down due to slip or the like caused by the algae.

  Further, the streak 4 is provided with an anti-algae paint, a photocatalyst coating, or a coral spraying process so that it does not slip due to the attached algae or the like when a person directly walks on the protrusion 4. However, it should not be limited to these processes.

Furthermore, the strip-shaped protrusion 4 is arbitrarily formed of a material such as rubber, plastic, concrete, wood, or iron . Therefore, if any of the existing gently inclined revetment 1 is adopted and configured, workability is extremely good.

Further, by forming the sectional shape of該条like projections 4 a polygonal, semicircular, while capturing the sediment to run up by the flow of seawater, arresting the flowing out of the sand to the offshore You can also.

  Next, a specific example of the revetment block 2 will be described with reference to FIGS. 4 is a front view of the revetment block 2, FIG. 5 is a side view of FIG. 4, and FIG. 6 is a plan view of FIG. FIG. 7 is a partially cutaway side view showing a state in which sand 5 is filled on the revetment block 2.

  Thus, the revetment block 2 is formed to be curved so that the front left and right sides protrude forward, and therefore the streak at the front end portion of the strip-shaped projections 4 provided on the revetment block 2. The protrusion 4 is curved and formed in accordance with the shape of the front end portion of the revetment block 2. Further, the rear strip-like projections 4 and 4 are formed in a straight line and are provided with a predetermined interval L, respectively.

  Thus, as shown in FIG. 5, the revetment block 2 has a lower part protruding from the rear (right side in FIG. 5) and has a holding part 6, and the upper part connected to the holding part 6 in a continuous manner. The front part of the revetment block 2 is placed as shown by the chain line in FIG. 7, and the revetment revetment blocks 2, 2,...

  In the figure, reference numeral 7 denotes a hook. The hook 7 is used when connecting to the adjacent revetment block 2 with a wire or the like.

Next, an embodiment for forming the strip protrusions 4, 4... On the upper surface of the revetment block 2 will be described with reference to FIG. In FIG. 7, three strips appear on the strip-shaped projections 4, 4. The left side, that is, the front end portion (front side in FIG. 6, left side in FIG. 7) of the revetment block 2 is formed to be curved as described above, and the strip-like protrusion 4 at the front end portion is also formed in the revetment block 2. The two bolt-like fixtures 8 for fixing the strip-like protrusion 4 at the front end to the revetment block 2 are shown in FIG. Of course, the number of the protrusions 4 at the front end is one.

  Thus, as shown in FIG. 7, insertion holes for the bolt-like fixtures 8 are opened in the revetment block 2 at the locations where the streak protrusions 4 and the streak protrusions 4 are to be fixed, respectively. The fixing tool 8 is inserted from the upper surface of the strip-shaped protrusion 4 and the lower part of the fixing tool 8 is inserted into the insertion hole of the fixing tool 8 provided in the revetment block 2, and a hardening agent is injected to fix the fixing tool 8. Is fixed to the revetment block 2 and at the same time, the strip projections 4 are fixed to the upper surface of the revetment block 2. After that, sand 5, 5... Is filled between the strip projections 4, 4. However, the fixing means for the strip-shaped protrusion 4 should not be limited to this.

  It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

The top view which shows one Example which applied this invention to the coast. The partially notched top view which shows the gentle slope revetment of this invention. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. The front view of the bank protection block of this invention. The right view of FIG. The top view of FIG. FIG. 5 is a partially cut-away right side view showing a state in which strip-shaped protrusions are provided on the revetment block of FIG. 4 and sand is filled therebetween.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mild slope revetment 2 Revetment block 3 Natural stone 4 Strip-shaped protrusion 5 Sand 6 Holding part 7 Hook 8 Fixing

Claims (5)

In a stair-type gentle slope revetment constructed by building a number of revetment blocks in a staircase shape, a plurality of strip-shaped protrusions are laterally arranged at predetermined intervals on the top surface of each revetment block near the water's edge and inundated with seawater. A slip-preventing mechanism for a stair-type gentle slope revetment, which is arranged side by side and further filled with sand between the strip-shaped projections. In a stair-type gentle slope revetment constructed by building a number of revetment blocks in a staircase shape, a plurality of strip-shaped protrusions are laterally arranged at predetermined intervals on the top surface of each revetment block near the water's edge and inundated with seawater. juxtaposed in the direction, further, between each row-like projections, sand can deposition, and, nonwoven fabric having an uneven and gaps, a woven fabric or mat laid sand on the upper surface of the nonwoven fabric, woven fabric or matte A slip prevention mechanism for stair-type gentle slope revetments characterized by filling and depositing. The Article shaped protrusions rubber, plastics, concrete, wood or iron or et consisting claim 1 or 2 anti-slip mechanism in stepped gentle slope revetment bank according. Sectional shape polygonal the strip-like projection, a semicircular, claims with capturing run-up airborne sand, characterized in that it is formed so that it can suppress the outflow of sand to offshore The slip prevention mechanism in the stair type gentle slope revetment of description 1, 2 or 3.   The slip prevention mechanism in the stair type gentle slope revetment according to claim 1, 2, 3, or 4, wherein the strip protrusion is processed so that algae and slime do not adhere.

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