JPH1037290A - Snow melting-removing drain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lay a snow melting-removing drain easily on a narrow road, and to improve drain cleaning force by dividing a bottom slab and an upper side drain into two, forming an invert in an oval shape and forming a bypass water flow path by installing a flowing-water parting net. SOLUTION: Side walls 9 are mounted towards lower sections from both sides of a ceiling surface 3, in which an opening section 8 is formed to a part, in an upper side drain 2, and the invert 7 of the water flowing surface of a bottom slab 1 is formed in an oval shape. The side walls 9 and the bottom slab 1 are engaged, and unified by halving-joint fitting sections 14. A mesh 6 is set up on one side of the side walls 9 as a parting net, and a main water flow path 13 for flowing snow and a bypass water flow path 12 for flowing water are formed. Accordingly, since the snow melting-removing drain is divided into the bottom slab 1 and the upper side drain 2 and products are miniaturized and lightened, the drain is laid easily on a narrow road. The invert 7 is formed in an oval shape, and the bypass water flow path 12 is formed, thus improving drain cleaning force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention has a function of increasing the flow velocity by inverting an oval cross section while combining a small opening with an invert portion (bottom plate) and an upper main body while dividing the melt snow groove into two parts. It relates to a gutter that combines both snow melting and snowfall.

[0002]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention divides an inverting portion (bottom plate) and an upper body into two parts to reduce the weight and facilitate installation work by a small heavy machine.
Short-term construction is planned by precasting the invert.
The upper body and the inverting part are facilitated by connecting and disconnecting the upper body and the lower part, so that the speed of the construction is increased. Further, by making the inverted shape oval, the flow velocity is made faster than that of the cross section.

[0003]

The present invention is based on a narrow road with a width of about 4 m in the old city area before city planning, which makes it difficult for snow plows to enter and exit in winter. It is intended to secure winter traffic by removing snow from off roads. The idea was to ensure the minimum traffic for local residents during construction work for laying the snowy snow gutter,
In order to restore the road at an early stage, even if the opening width is reduced, the structure of the snow melting function will not be reduced.
By reducing the weight of the invert, labor-saving, accurate, and quick installation is possible, thereby shortening the construction period. In addition, by making the running surface of the invert into an oval shape, it is possible to speed up the flow of the melt snow gutter.

[0004]

2. Description of the Related Art A conventional melt snow groove has a minimum opening width of 50 mm.
0 mm and the total width is 800 mm or more, so the excavation section is large and it takes days to lay and restore it.
m has not been used on roads below m. Therefore, local residents who cannot access the snow removal shovel felt very inconvenient for traffic in winter.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention secures the width of a sidewalk on one side of a road with a width of about 4 m, even during laying of a snowy ditch, while performing construction while securing traffic for people. is there. Therefore, the opening of the melt snow groove is set to the minimum width capable of maintaining the melt snow function, and the excavated cross section of the road about 4 m at the time of construction is reduced. The depth of the melt snow groove depends on the amount of snow removed, but should be as deep as possible. The water flow surface on the upper surface of the bottom plate block has an oval cross-sectional shape, increases the water depth for melting snow, and increases the flow velocity for flowing snow.

[0006]

[Operation] A precast basic slab with an oval-shaped running water channel is laid on a precast concrete bottom slab, and a combination is arranged on this basic slab in such a way as to straddle a free-slope gutter with a partially open ceiling surface. Thereby, a mesh-like running water network and a main waterway are configured.

[0007] The snow chunk introduced from the opening in the ceiling surface is caused to flow downstream by water flowing from the upstream. When the flow of snow mass in the main waterway stagnates, the volume of water in the flow network bypass increases and the water level rises, so that the snow mass in the main waterway is washed away. Since the inversion of the base plate has an egg shape, the friction area is small and the frictional resistance is small. Therefore, the flow velocity of the water flow is increased, and the gutter is not clogged due to snow. Snow mass flowing downstream in this waterway, if a water stop plate is provided in the middle,
Blocked by a water stop. In this case, the water is also blocked by the water stop plate, but flows downstream through the bypass flow passage. The snow mass is melted by the hydrothermal energy of the water flowing in the gutter, and the melted snow mass flows downstream as water. Since the water always flows downstream through the bypass water passage, clogging of the gutter due to snow storm does not occur.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a basic version. The base plate has a notch as a meshing portion for arranging the free slope side groove on both sides. The invert 7 on the flowing water surface is egg-shaped, increasing the water depth and increasing the flow velocity. The flow velocity does not change much at a small flow rate or a large flow rate. On both sides of the invert of the running surface of 7,
Because of the steep rise, even when the flow rate is small, it is difficult for organic matter to accumulate, and it has a high sweeping force function. Reference numeral 2 denotes an upper portion of the gutter, to which a conventional gradient variable gutter is applied. The ceiling surface 3 has an opening 8 that is partially open.
Is provided. Side walls 9 are provided from both sides of the ceiling surface 3 toward the lower part. The side walls of the side grooves are connected by mortar injection into the ten grooves. Reference numeral 4 denotes a running water network supporting portion. The running water net support 4 is provided to protrude inward at an upper portion of one of the side walls along the longitudinal direction of the upper side groove 2. As shown in FIG. 1, the lower part of the water net support 4
In order to reduce the interruption of flowing water, there is no unevenness and it is supported by the same thickness. 6 is a running water network. The water net 5 is made of metal or plastic mesh, and the upper part is attached to the water net support part 4, and the lower part is a bolt 11 as shown in FIG.
As shown in FIG.

Next, the operation of the embodiment will be described. The first base plate is accurately installed along the gutter drain slope for weight reduction by two divisions. The upper side groove is provided so as to straddle the invert, and is fixed by mortar solidification of the meshing engagement portion.

[0109] The snow chunk thrown in from the opening in the ceiling is
The water is flowed downstream by the flowing water in the main water channel 13. When a water stoppage plate for snow drift adjustment is provided on the way, the water stoppage plate is blocked by the adjustment. In that case, the water is also blocked by the water stop plate, but flows downstream through the bypass flow passage 12. The snow mass is melted by the hydrothermal energy of the water flowing through the gutter,
The melted snow melt flows into the downstream as water. Since the water is always flowing through the bypass passage 12, clogging of the gutter due to snowfall does not occur. In addition, the egg-shaped invert has the problem of tractive force due to the difference in cross-sectional shape, and the oval tube has a larger water depth when compared with the circular gutter or square gutter with the same cross-sectional area, slope, and material. The fluid force also increases. This results in less deposits. In addition, in the egg-shaped flowing water channel, the deposit on the steep slope on both sides has a shape that easily slides down toward the center, so that the sweeping force is increased.

[00011]

According to the present invention, the side groove as the meltwater groove is divided into two parts to reduce the weight, thereby enabling manual work or work of a small work vehicle on a narrow road where a large work vehicle cannot enter. Depending on the cross section of the flowing water channel, it is possible to secure a large amount of flowing water, secure the water depth, and increase the tractive force.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a side view of an embodiment of the present invention.

FIG. 3 is a plan view of an embodiment of the present invention.

FIG. 4 is a sectional view taken along the line AA in FIG. 3 of the embodiment of the present invention;

FIG. 5 is a sectional view taken along the line BB of FIG. 3 according to the embodiment of the present invention;

FIG. 6 is a perspective view of an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom plate 2 Upper side groove 3 Connecting part 4 Flowing water network support part 5 Ceiling surface 6 Flowing water partition net (mesh) 7 Invert 8 Opening 9 Side wall 10 Mortar groove 11 Flowing water network lower support vault 12 Bypass flowing water path 13 Main flowing water path 14 Meshing Mating part 15 Rising part

Claims (2)

[Claims] 1. The bottom plate 1 and the main body 2 are divided into two parts, and the product is reduced in size to facilitate installation on narrow roads. The mesh 6 is installed on one side of the side wall as a dividing net for running water and flowing snow. , A snowfall device in a snowfall gutter provided with a bypass waterway. 2. The cross-sectional shape of the bottom slab main flow channel 13 is egg-shaped, and the rising portions 15 on both side surfaces are steeply inclined, so that the water depth becomes deeper than the amount of flowing water, and even if the flow rate is small, the flow velocity does not change much. In addition, a snowfall device in the snowfall gutter where the cross section of the flowing water is difficult for organic matter to accumulate.