JP2006118180A - Snow melting pipe block - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a snow melting pipe block hardly slipping at an upper surface, and superior in safety without misconception of the center line. <P>SOLUTION: In this snow melting pipe block 1, a projection-like nonslip member 9 projected upward from a plane part 8 finished in a plane shape, is arranged on an upper surface 7 exposed to an asphalt road surface 13, and when an automobile and a pedestrian pass, they are prevented from slipping and overturning by increasing friction, and the mistaking for the center line 14 is not misconcepted by being colored in black by including carbon in concrete 12 for forming the snow melting block 1, since the color is similar to the asphalt road surface 13. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a snow extinguishing pipe block that is buried by excavating a road surface in order to prevent snow accumulation on the road surface in winter.

  In cold regions where the ground is covered with snow during the winter season, snow extinguishing devices are installed on major roads to allow cars and pedestrians to pass without being affected by snow. There are various methods for snow removal, but the most popular method is to spray water in the form of a fountain from a nozzle embedded near the center of the road surface and melt the snow and pour it into a gutter. In this method, the area near the center of the road surface is continuously excavated with a width of about 30 cm, and pipes are laid in it and then backfilled with concrete. Is exposed.

  Such a water spray type snow-absorbing device is often constructed on a road in service, and it becomes difficult for automobiles to pass during the construction period. Therefore, it is necessary to shorten the construction period as much as possible. Therefore, a construction method that can reduce the amount of work in the field by manufacturing concrete products in which pipes, nozzles, etc., called snow extinguishing pipe blocks are built at the factory, and burying them in the road is also popular. This snowpipe pipe block is a rod with a length of about 5m. Inside, a main pipe for supplying water penetrates, and a branch pipe for distributing water from the main pipe to the nozzle is also incorporated. Sometimes there is no need for complicated piping work on site.

  The snowpipe pipe block has a trapezoidal cross section, and the upper surface exposed by the nozzle is finished in a horizontal plane. In general, a flat surface solidified with concrete is more slippery than the asphalt used for paving. Therefore, the upper surface of the snowpipe pipe block after construction becomes extremely slippery due to precipitation and watering, and when an automobile or a pedestrian passes, an unexpected accident such as slipping or falling may occur.

  Also, the road surface is painted with various types of road surface such as a center line to divide the lane, but the snowpipe pipe block has a gray color close to white, and the driver misidentifies it as a snowpipe pipe block and a centerline. There is a fear. In the section where the snowpipe pipe block is constructed along the center of the road surface, even if such misidentification occurs, there is no problem, but in the curved section etc., the snowpipe pipe block may be laid near the shoulder. If this is mistaken, the car may deviate from the shoulder and cause an unexpected accident.

  The present invention has been developed on the basis of such a situation, and an object thereof is to provide a snow-dissipating pipe block that has an excellent safety that prevents the upper surface from slipping and that is not mistaken for a center line or the like.

  According to the first aspect of the present invention for solving the above-described problem, the upper surface exposed on the road surface has a flat surface portion formed in a flat shape and a protrusion-shaped anti-slip protruding upward from the flat surface portion. It is a concrete snow-dissipating pipe block characterized by being formed.

  Here, the upper surface of the snowpipe pipe block is the only part that is exposed on the road surface after being embedded in the road. In addition to direct contact with automobiles and pedestrians, nozzles for watering are intermittently arranged. . Moreover, a plane part is parts other than a nozzle among the said upper surfaces, and points out the surface formed without the unevenness | corrugation in the surface formed with concrete. The anti-slip is formed so as to protrude from the flat portion, and its shape and arrangement are not limited to a specific method, but it is fixed so that the tire and the sole can be securely received. The height should be secured and the spacing between adjacent anti-skids should be appropriate. Furthermore, it is possible to form individual anti-skid continuously in a mountain range, but it is desirable to make the extension of the anti-slip shorter in consideration of drainage. Therefore, it is desirable to use a basic pattern such as a “<” shape or a “ten” shape and to dispose the non-slip on the entire area of the plane portion while ensuring a certain distance.

  In addition, the best way to form anti-slip is to engrave grooves that will become anti-slip molds into the molds used when manufacturing snowpipe pipe blocks, and then pour the ready-mixed concrete into them to form them integrally. Simple. In addition, non-slip concrete pieces and metal pieces are manufactured separately and then fused to a snow-dissipating pipe block that is in the process of solidification, or the flat part is cut with a machine tool after solidification. It is also possible.

  With this configuration, tires and shoe soles come into contact with the anti-slip side surfaces that are formed into protrusions, so that sufficient frictional force can be generated, and troubles such as slips and falls occur during rainfall and watering. Can be prevented. Regarding the anti-slip pattern, use a non-slip that extends in the width direction of the snowpipe pipe block if you want to prevent slipping of the car, or if it is installed on a pedestrian crossing, in the longitudinal direction. It is also possible to use a non-slip pattern according to the actual condition of use, such as using a non-slip extended.

  The invention described in claim 2 is the snow-dissipating pipe block according to claim 1, characterized in that the concrete contains powdery carbon. The purpose of this invention is to color the entire concrete black with carbon. Carbon here refers to all black substances whose main component is carbon, and those that are crushed into a powder form so as to diffuse uniformly. use. Carbon is mixed at the stage of ready-mixed concrete before the concrete solidifies, and sufficiently stirred to prevent color unevenness.

  Carbon does not define detailed components and composition, but as a specific example, charcoal may be used in addition to graphite. However, when using a material with a variation in composition such as charcoal, it is possible that impurities may affect the concrete, so make sure that there is no problem in advance. In addition, it is necessary to adjust the particle size so that carbon does not float or sink during solidification so that there is no color unevenness after the concrete solidifies.

  With this configuration, the color of the snowpipe pipe block becomes gray near black and the color difference from the asphalt pavement is reduced, so the driver misidentifies the snowpipe pipe block as a road surface paint such as a center line. Can be prevented. In addition, not only the upper surface of the pipe block becomes black, but the whole including the inside becomes black, so even when the upper surface gradually wears, the hue does not change.

  The invention described in claim 3 limits the amount of carbon contained in the concrete to a range of 2% to 7% with respect to the total weight of the concrete. In addition, the numerical value quoted here shows the weight ratio in the state of ready-mixed concrete. Therefore, ready-mixed concrete is composed of aggregates such as gravel and water, including cement, and water, but the weight of carbon to be added is as described above with respect to the total weight of the above components. Measure and adjust the color by mixing the specified amount with ready-mixed concrete.

  With this configuration, the color when the asphalt road surface appears to be black, such as during rain or at night, and the color of the snowpipe pipe block according to the present invention are almost equal, and the snowpipe pipe block is almost identified from the driver. It becomes impossible to prevent misidentification with the center line.

  As in the first aspect of the invention, by forming a protrusion-shaped anti-slip on the upper surface of the snowpipe pipe block, friction with the tire and the shoe sole increases, so that the automobile slips even during rain or watering. This reduces the risk of slipping and falling, and ensures safe traffic for cars and pedestrians.

  By adding carbon such as charcoal to the concrete of the snowpipe pipe block as in the invention described in claim 2, the color approaches black, so that the difference in color from the asphalt road surface after construction is reduced. This makes it possible for automobiles to pass safely, and because carbon is contained in concrete, the color does not change even when the upper surface gradually wears.

  By limiting the amount of carbon contained in the ready-mixed concrete to a specific ratio as in the invention described in claim 3, the asphalt and the snow-dissipating pipe block can be used when the entire road surface appears dark during rain or at night. Are almost the same color and the driver cannot identify the snowpipe pipe block, so accidents due to misidentification can be prevented.

  FIG. 1 shows the shape of a concrete snowpipe pipe block 1 according to the present invention. FIG. 1 (A) is a perspective view showing the whole, and the cross section is a trapezoidal shape spreading toward the end and the total length is about 5 m. On the upper surface 7, there are formed a flat portion 8 that is horizontally finished without unevenness, and a non-slip 9 that is raised from the flat portion 8. Each anti-slip 9 has a shape in which two ridges intersect in a cross shape, and is arranged so as to cover the entire upper surface 7 with a certain interval. In addition, a nozzle 4 for watering is also provided. They are arranged at an interval of about 1 m. FIG. 1B is an AA cross-sectional view showing a cross-sectional shape of the snowpipe pipe block 1 and shows a cross section of the nozzle 4 and the like. Inside this, a main pipe 2 for supplying water penetrates in the longitudinal direction, and a branch pipe 3 for branching water from the main pipe 2 is arranged in the vertical direction. A nozzle 4 is incorporated. In addition, in order to ensure the strength of the snowpipe pipe block 1, the main reinforcing bars 5 are embedded in the longitudinal direction, and these are integrated by the concrete 12. After the construction, only the upper surface 7 is exposed on the asphalt road surface 13, and only the anti-slip 9 protrudes from the surface. FIG. 1C is a cross-sectional view taken along the line B-B showing an intermediate cross-sectional shape of the adjacent nozzle 4. The main reinforcing bar 5 arranged in the longitudinal direction is welded to the annular band reinforcing bar 6 arranged about every 20 cm. Are bound by. The concrete 12 used for the snowpipe pipe block 1 contains carbon in the form of powdered charcoal, and the entire surface except for the nozzle 4 is colored in gray close to black.

  FIG. 2 shows a process for manufacturing the snowpipe pipe block 1 according to the present invention. FIG. 2 (A) is a plan view of the mold 10 viewed from above, and FIG. It is C sectional drawing. The formwork 10 used when solidifying the concrete 12 has a structure that can be divided into right and left, in which the main pipe 2, the branch pipe 3, and the nozzle 4 are incorporated at predetermined positions, and the main rebar extending in the longitudinal direction. 5 and the band rebar 6 arranged so as to bundle the main rebar 5 are also incorporated at predetermined positions. Then, the anti-slip 9 constructed on the upper surface 7 of the snowpipe pipe block 1 is solidified in a groove 11 carved on the lower surface of the mold 10 as shown in a section sandwiched by a one-dot chain line in the center of FIG. It is formed by the previous concrete 12 flowing in. As shown in FIG. 2B, after assembling the main pipe 2 and the main reinforcing bar 5 and the like, the concrete 12 adjusted to a predetermined component (raw state) is poured, and when the formwork 10 is removed after solidification, the snow-dissipating pipe Block 1 is complete.

  FIG. 3 is a perspective view showing an example of a pattern of the anti-slip 9 formed on the upper surface 7. When the concrete 12 is solidified as shown in the previous figure, the groove 11 carved in the mold 10 is transferred and created. . In FIG. 3 (A), the cross-shaped basic pattern is continuously constructed except for the portion that interferes with the nozzle 4, so that water due to rain or water spray quickly diffuses to the plane portion 8 and flows to the surroundings. Therefore, the non-slip 9 is not submerged except during heavy rain, and since the tire and the sole can also contact the side surface of the non-slip 9, sufficient frictional force can be exhibited at any time. FIG. 3B shows a structure in which “<”-shaped slip stoppers 9 are continuously constructed, and both ends of the individual slip stoppers 9 face the width direction of the snowpipe pipe block 1. Since this structure generates strong friction with respect to the longitudinal direction of the snow extinguishing pipe block 1, it is suitable for a place where the passage of an automobile is mainly used.

  FIG. 4 shows a state in which the snowpipe pipe block 1 according to the present invention is laid on a road. The road in the figure is one lane on one side and the lane is divided by the center line 14. The snowpipe pipe block 1 needs to be laid at the highest position in the road section, and is usually adjacent to the center line 14 at the center, but in the curved section, a cant may be provided to make the outside of the curve higher. In the road shown in the figure, the snowpipe pipe block 1 is laid along the shoulder in the curved section. At this time, if the driver misidentifies the snowpipe pipe block 1 as the center line 14, it is very dangerous. However, since the snowpipe pipe block 1 is colored with powdered carbon, the color of the asphalt road surface 13 is similar. Therefore, the driver can continue driving along the center line 14 without misunderstanding this.

Table 1 is an example of a concrete composition table used to command the component composition when the concrete 12 used in the snowpipe pipe block 1 is prepared. However, a part of the description which is not related to the present invention is omitted. The carbon used for coloring is made of crushed wood fragments, such as driftwood and thinned wood, which are originally disposed of in a carbonization furnace. The total weight per cubic meter excluding the admixture is about 2400 kg, of which 50%, or 2%, is occupied by carbon, and the color of the concrete 12 is optimal.

The shape of the snow-making pipe block made from concrete by this invention is shown, (A) is a perspective view showing the whole, (B) is AA sectional drawing, (C) is BB sectional drawing. . The process at the time of manufacturing the snow-melting pipe block by this invention is shown, (A) is the top view which looked at the formwork from the top, (B) is CC sectional drawing. It is a perspective view which shows the example of the pattern of the anti-slip | skid formed in the upper surface of a snow extinguishing pipe block, (A) is a cross-shaped pattern, (B) is a character-shaped pattern. It is a perspective view which shows the state which laid the snow-melting pipe block by this invention on the road.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Snow extinguishing pipe block 2 Main pipe 3 Branch pipe 4 Nozzle 5 Main reinforcement 6 Band reinforcement 7 Upper surface 8 Plane part 9 Anti-slip 10 Form 11 Groove 12 Concrete 13 Asphalt road surface 14 Center line

Claims (3)

  On the upper surface (7) exposed on the road surface, a flat surface portion (8) formed in a flat shape and a protruding slip stopper (9) protruding upward from the flat surface portion (8) are formed. A snowpipe pipe block made of concrete (12).   The snow extinguishing pipe block according to claim 1, wherein said concrete (12) contains powdery carbon. The snow-dissipating pipe block according to claim 2, wherein the amount of carbon contained in the concrete (12) ranges from 2% to 7% with respect to the total weight of the concrete (12).

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