JPH0280728A - Snow thawer in water channel - Google Patents

Abstract

PURPOSE:To elevate snow in a flowing path, to drop snow in an upper layer easily and to melt snow effectively by separating a water channel into a flowing water region surrounded by a partition body and a snow disposal region by the latticed partition body, a main crosspiece of which is inclined in the direction opposite to the face of a slope. CONSTITUTION:A water channel 1 is separated into a flowing water region 3 surrounded by a partition body 5 and a snow disposal region 4 by the latticed partition body 5 in which a large number of main crosspieces 6 composed of longitudinal sections 6b tilted to the lower section of the face of a slope 2 while being continued to lateral sections 6a projected onto the water channel 1 from the upper section of the face of the slope 2 of the water channel 1 are connected by a plurality of lateral crosspieces 7. Snow is made to flow along the flowing water region 3 while being lifted in a flowing path by snow disposed in the disposal region 4 of the water channel 1. Snow is melted successively from an intermediate layer to a lower layer, and the snow of an upper layer leaving by the inclination of the main crosspieces 6 is dropped easily and the falling snow of the upper layer is melted.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a snow melting device installed on the slope of a waterway such as an irrigation canal or a small river to melt snow dumped in the waterway with running water. Regarding equipment.

[Conventional technology]

In areas with heavy snowfall, especially in urban areas, dump trucks transport snow from the streets and dump it into irrigation canals, small rivers, etc.; however, large amounts of dumped snow are compacted, and the snow causes running water to form dams. These canals were dammed during the winter drought period, and even though the amount of water was small, disasters often occurred where water dammed by snow overflowed onto the streets.

One solution to this problem is to install guardrails on the shoulders of roads parallel to the waterway and lower them into the waterway during the winter. A technology developed in 12941-1987 to prevent water flow from being blocked by fallen snow and to gradually loosen the dumped snow with running water.
This is disclosed in Publication No. 8.

[Problem to be solved by the invention]

By the way, as shown in FIG. 8, the guardrail partition 20 installed in the waterway has one end in contact with the upper part of the slope 2 of the waterway 1, and the other end in contact with the bottom surface of the waterway. The area surrounded by the partition body 20 is designated as a watershed 21, and the other waterway is designated as a snow dumping area 2.
2. However, in the above device, the dumped snow is compacted, and as time passes, the snow at the bottom melts and flows down, but the compacted snow S at the top does not fall. As the water W starts to flow at the bottom, a tunnel T is created between the water and the snow, and even if more snow is piled up, it does not fall down, and eventually the partition body 20 installed at an angle loses its function. , the snow melting function could hardly be obtained.

The present invention was developed with the aim of solving the above-mentioned problems, and as mentioned above, the inside of the waterway is divided into the snow dumping area and the flowing water area, but the upper layer of the waterway is To provide a snow melting device for a waterway, which is configured so as to maintain the temperature of snow, and can surely obtain the function of melting even the compacted snow in the upper layer.

[Means to solve the problem]

The solution according to the present invention includes a large number of main beams each having a horizontal portion that protrudes from the upper part of the slope of the waterway onto the waterway, and a vertical portion that slopes and extends toward the lower part of the slope, and spaced apart from each other. A grid-like partition connected by a plurality of horizontal bars separates the inside of the waterway into a flowing water area surrounded by the partition and a snow dumping area.

〔Example〕

To explain the present invention specifically, as shown in FIGS. 1 and 2, the partition body 5 that is attached to the slope 2 of the waterway 1 and separates it into the running water area 3 and the snow dumping area 4 is made of iron. A large number of main bars 6 formed by bending round bars are arranged horizontally at equal intervals, and each main bar 6 is
are connected by means such as welding with a horizontal crosspiece 7 also made of iron round rod, and the main crosspiece 6 has a horizontal horizontal portion 6a and a horizontal portion 6a whose tip is curved downward. The vertical portion 6b is inclined toward the base end side and abuts on the lower end portion of the slope 2, and is formed in the shape of a 7, just like the number.

In order to attach the partition body 5 to the slope 2 of the waterway 1, it is preferable to use a detachable means as it is not necessary except in winter, and one example of this is shown in FIG. A strip-shaped plate 8 parallel to the horizontal beam 7 is fixed to the base end of the horizontal portion 6a, and a partition body 5 is attached to the upper part of the slope 1.
Several boards 9 with a width slightly narrower than the spacing between the main crosspieces 6 are fixed, and a hook 10 is protruded from the front lower part of the board 9 to receive and hold the board 8. In order to attach the partition body 5, a cover 11 for preventing floating of the hook 10 is provided vertically at the tip of the hook 10 so as to overlap with an interval.
For installation, the plate 8 is inserted diagonally between the hook 10 and the cover 11, and then the plate 8 is raised and lowered onto the hook 10 to be fixed.

The means for attaching the partition body 5 is not limited to the above structure, and other means may be used, and it is not necessarily necessary to attach it removably, but it may be fixed semi-permanently. good. Furthermore, if removal is possible and unnecessary, the removed partitions 5 are stacked and placed on the horizontal members 12 made of, for example, H-shaped steel, constructed over the waterway 1 so as to cover them from above, as shown in FIG. Also, when the partition body 5 is installed in the water channel 1 as shown in Fig. 2, a plurality of round bars are placed on the downstream side thereof as shown in Fig. 4. Screens 1 arranged at intervals
3 is also preferably provided in a detachable manner.

With the above structure, snow is dumped all at once from a dump truck or a bulldozer hopper into the waterway 1 provided with the partition body 5 as described above, but the dumped snow S flows down the bottom. The water that had been dumping is splashed up and piled up from the bottom of the snow dumping area 4, and as shown in Figure 6, the water W is pushed up by the snow and flows down inside the watershed 3 surrounded by the partition body 5. The flow path is raised.

Therefore, the middle layer of the piled up snow layer is exposed to running water, so the snow in the lower layer gradually melts and flows from the sides of the middle layer, and finally, as shown in Figure 7, the snow from the middle layer to the lower layer melts. However, since the main crosspiece 6 of the partition body 5 is tilted and the bottom of the waterway is wider than the top, the remaining upper layer falls under the weight of the dumped snow, causing the above-mentioned situation to occur again. It also has the effect of melting snow.

〔Effect of the invention〕

The snow melting device for a waterway according to the present invention has a large number of main beams arranged in parallel, each having a horizontal part that projects from the upper part of the slope of the waterway and a vertical part that is continuously inclined from the horizontal part and comes into contact with the lower part of the slope. A partition body that separates the inside of a waterway into a snow dumping area and a drainage area.The drainage area is installed along the slope of the waterway, and the snow layer accumulated in the snow dumping area is melted from the side. Therefore, the snow melts from the middle layer of the snow layer to the lower layer, and since the main crosspiece is inclined in the opposite direction to the slope, the remaining upper layer of snow falls easily, and the partition body The function always operates effectively.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a snow melting device for a waterway according to the present invention, Fig. 2 is a front view thereof, Fig. 3 is a sectional view showing an example of a structure for attaching a partition to a slope, and Fig. 4 is a sectional view of a screen. ,
Figure 5 is a cross-sectional view showing the state in which the partition body has been removed and put away, Figure 6 is a cross-sectional view showing the state in which snow is piled up in the snow dumping area, Figure 7 is a cross-sectional view showing the state in which the snow has been melted, FIG. 8 is a sectional view showing a conventional snow melting device for a waterway, and FIG. 9 is a sectional view showing a state of snow melting in a conventional waterway.

Claims (1)

[Claims] 1. A large number of horizontal parts (6a) that protrude from the upper part of the slope (2) of the waterway (1) onto the waterway, and a vertical part (6b) that slopes and extends to the lower part of the slope (2). The inside of the waterway (1) is divided by a grid-shaped partition (5) in which the main bars (6) of the main bars (6) are connected by a plurality of horizontal bars (7) at intervals.
5) A snow melting device in a waterway characterized by being separated into a drainage area (3) and a snow dumping area (4) surrounded by