JP3035668U - Drainage device for drainage pavement - Google Patents

Abstract

(57) [Summary] [Purpose] When laying drainage channels at the intervals of drainage basins, the intervals between drainage basins are not constant and vary from place to place. Therefore, a gap is created at the end only with the standard size of the drainage channel. Therefore, we devised an expansion / contraction device for the drainage channel to eliminate the work of cutting on site. [Structure] The expander / contractor comprises an insertion part having a size that can be accommodated in the inverted U-shape of the drainage channel and a fixing part having the same shape as the inverted U-shape of the drainage channel. Insert the drainage device into the drainage channel 5
The length of the drainage channel is adjusted by increasing or decreasing the overlapping length by inserting into the.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a drainage canal in a drainage pavement such as a road, a road bridge, an elevated parking lot or an airfield (hereinafter referred to as a road).

[0002]

[Prior art]

 In pavement of roads, etc., drainage pavement constructed with drainage surface asphalt is widely used, which facilitates drainage of rainwater and protects the pavement and roadbed (ground or floor slab). ing. To construct drainage pavement, first lay an impermeable base layer asphalt on the surface of a roadbed with a cross slope while forming a groove along the shoulder between drainage basins, and then on the shoulders on both sides. A drainage pavement and drainage channel are constructed by installing a permeable drainage pipe in the premises along the line and then laying a drainage surface layer asphalt covering the permeable drainage pipe and the impermeable base layer asphalt. The water-permeable drainage pipe is a water-permeable drainage pipe made of concrete, resin, or stainless steel that is filled with a drainage pavement material, and is connected to a drainage basin provided at a predetermined interval along the road shoulder.

In a road having a drainage pavement and a drainage channel constructed as described above, rain falling on the surface thereof invades the drainage surface asphalt. Rainwater that has entered the drainage surface asphalt does not enter the roadbed because it is blocked by the impermeable base layer asphalt, flows inside the drainage surface asphalt, and is placed in a position lower than the drainage surface asphalt. It flows into the pipe, flows through the permeable drainage pipe, flows into the drainage basin, and is drained from the drainage basin to the drainage pipe.

However, the conventional water-permeable drainage pipe is clogged with dust, earth and sand, etc. flowing with rainwater in the drainage surface asphalt with the passage of time, and the water-permeable function deteriorates, and the water-permeable function gradually disappears. In addition, the drainage surface asphalt itself is also clogged with dust, earth and sand, etc., and the drainage function deteriorates.

Therefore, the applicant of the present application has disclosed, in Japanese Patent Application No. 8-157585, a drainage channel for a drainage pavement in which a water passage hole is provided in a substantially U-shaped long structure with a cross section perpendicular to the axis. Along the shoulders, drainage channels are provided at multiple locations at intervals in the lengthwise direction, and the water passage holes are placed on the impermeable base layer asphalt, with the water passage holes on the side of the roadway. , Has developed and has applied for a patent for a drainage channel for drainage pavement that lays drainage surface asphalt at the same height as the drainage frame.

[0006]

[Problems to be solved by the device]

 Since the conventional drainage canal for drainage pavement (hereinafter referred to as drainage canal) is configured as described above, it has the following problems. That is, the intervals between the existing drainage basins are not constant and vary from place to place. Therefore, a gap is created at the end only with the standard size of the drainage channel. As a method of filling the gap, there is a method of cutting and laying a standard size drainage channel at the site according to the gap, but the steel plate drainage channel is cut with a large device capable of cutting metal materials. It takes time and effort.

Further, even if the galvanized portion at the cutting location is cut and the cut surface is treated by painting in-situ, the corrosion resistance is significantly inferior to that of galvanization. The present invention is intended to solve the above problems. The purpose is to provide a device that can expand and contract the length of the drainage channel.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the expansion / contraction device for the drainage channel for drainage pavement (hereinafter referred to as drainage channel) according to the present invention is configured as follows. The expansion / contraction device consists of an insert part that fits in the inverted U-shape of the drainage canal and a fixed part that has the same shape as the inverted U-shape of the drainage canal. By inserting the insertion portion of the drainage device into the drainage channel 5, the length of the drainage channel is adjusted by increasing or decreasing the overlapping length. Similar to the drainage channel 5, water holes 6a are provided at a plurality of locations on a plate portion corresponding to one side surface and an upper surface of the U-shape of the expansion / contraction device to secure drainage performance. If only a standard size is assigned to the drainage basin and a gap is created, it is possible to fill all the gaps by laying one or two expansion devices.

[0009]

[Embodiment of the invention]

 Hereinafter, a preferred embodiment of a telescopic device for a drainage pavement drainage device according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective sectional view showing the construction of a drainage pavement to which the expansion / contraction device according to the present invention is applied, FIG. 2 shows an embodiment of the expansion / contraction device according to the present invention, (A) a plan view, (B) a front view, and (C). ) Right side view (D) Left side view.

In FIG. 1, reference numeral 1 denotes a roadbed that is formed in a plane shape with a transverse gradient such as a road, and a side shoulder of the roadbed 1 is provided along a road or the like. ing. The roadbed 1 is also provided with drainage basins 2 along the road shoulder 1a at appropriate intervals. An impermeable base layer asphalt 4 is laid over the front surface of the roadbed 1. On the water-impermeable base layer asphalt 4, a drainage channel 5 is provided along the road shoulder 1a for connecting the drainage basins 2. When the standard size drainage channel 5 is allocated between the drainage basins 2, a gap is created. Therefore, the length of the drainage canal can be increased or decreased by laying one or two telescopic devices 6 of the present invention so that the insertion part of the telescopic device is overlapped with the inverted U-shape of the drainage canal 5. To do.

On the water-impermeable base layer asphalt 4, a drainage surface layer asphalt 7 is laid so as to form a surface continuous with the drainage channel 5 and the upper surface of the expansion device 6, and drainage pavement is constructed. The drainage channel 5 is configured.

In FIG. 2, the expansion / contraction device 6 is a substantially U-shaped steel plate elongated structure having a cross section perpendicular to the axis, and in this embodiment, the expansion device 6 has a flat shape. The fixed part of the expansion / contraction device 6 is bent at the same height and in the same direction at the end portions of the plate portions corresponding to both ends of the U-shape, and one plate portion is outward and the other plate portion is inward. Each is bent at a right angle. In addition, the insertion part is a long U-shaped structure with the cross section perpendicular to the axis turned down, and the ends of the plate part corresponding to both ends of the U-shape are bent at the same height and in the same direction. It is shaped so that it can be inserted into the inverted U-shape of the drainage channel.

In addition, in the fixing portion and the inserting portion of the expansion and contraction device, water holes 6a are provided at a plurality of positions in a plate portion that corresponds to one side surface and an upper surface of a substantially U-shape, and the drainage performance is improved. Has been secured. The shape of the water passage hole 6a is not limited to a circular shape, but may be an elliptical shape, an oval shape, a polygonal shape, a star shape, a slit, or the like, and the size may be changed depending on the arrangement position. Further, an anchor hole 6b is provided in the bent portion of the plate portion. Because of the structure of the expansion / contraction device 6, the length of the drainage channel can be easily adjusted.

[0014]

[Effect of the invention]

 The expansion / contraction device for the drainage pavement drainage path according to the present invention is configured as described above, so that the following effects can be obtained. In other words, no matter what the size of the gap between the drainage channel and drainage basin is, laying one or two expansion devices means that only the standard length drainage channel is used for allocation. No need to disconnect. Therefore, the galvanized part at the cutting point is not cut, and the corrosion resistance is not deteriorated. Also, since the drainage frame is made of steel plate, it can be installed easily along the road shoulder on the impermeable basement asphalt and fixed by anchoring during drainage pavement work, and it can be used repeatedly. It is possible.

[Brief description of the drawings]

FIG. 1 is a perspective sectional view showing a structure of a drainage pavement to which an expansion / contraction device according to the present invention is applied.

FIG. 2 shows an embodiment of a telescopic device according to the present invention.

[Explanation of symbols]

 1 Roadbed 1a Road shoulder 2 Drainage basin 4 Impermeable base layer asphalt 5 Drainage channel 6 Expansion and contraction device 6a Water passage hole 6b Anchor hole 7 Drainage surface asphalt

Claims (1)

[Utility model registration claims] 1. When a drainage pavement is laid on a road or the like, it is a long structure made of a substantially U-shaped steel plate in which a cross section perpendicular to an axis extends between drainage basins 2 provided along a road shoulder 1a. , A plate portion corresponding to the one side surface and the upper portion of the U-shape, the drainage channels 5 provided at a plurality of water passage holes at intervals in the lengthwise direction are arranged on the impermeable base layer asphalt 4. In the drainage channel 5 in which the drainage surface asphalt 7 having the same height as the drainage channel is laid on the water passage side on one side surface of the drainage channel, the expansion device 6
The insertion part of is formed into a substantially U-shape that fits in the inverted U-shape of the drainage channel 5, and the length of the drainage channel is adjusted by increasing or decreasing the amount of insertion into the drainage channel. The drainage channel for drainage pavement is characterized in that the insertion portion of the expansion / contraction device 6 is also provided with water passage holes 6a at a plurality of positions in a plate portion corresponding to one side surface and an upper surface of the U-shape. Telescopic device.