JPH0715891U - Road L type rainwater infiltration basin - Google Patents

Abstract

(57) [Abstract] [Object] The present invention relates to a rainwater infiltration basin for road L type, and an object thereof is to prevent displacement and settling of a frame block due to earth pressure (pressure) applied obliquely downward and downward from the road surface. . [Structure] In a road L-shaped seepage basin in which a plurality of frame blocks are superposed and a lid block is detachably attached to the uppermost frame block, opposing substantially vertical uneven portions are formed on the upper and lower surfaces of the adjacent frame blocks. Between the frame blocks, and a substantially vertical uneven portion which has a wider surface contact than the frame block and faces the lower surface of the frame block is formed on the upper surface under the lowermost frame block of the frame block. It is characterized by

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rainwater infiltration basin for road L type, which temporarily stores rainwater on the road surface and then inflows and permeates into the sewer main and underground.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, a road L type rainwater infiltration basin has frame blocks 10, 11, 12, and 13 superposed on each other as shown in FIG. 2, and a lid block 14 is detachably attached to the uppermost frame block 13. .

Then, the rainwater on the road is guided into the basin through the rainwater guide hole 15 of the lid block 14, and then the rainwater stored in the basin is passed through the sewer pipe 16 provided in the lowermost frame block 10. It is made to flow into the main sewer pipe and penetrate into the ground through the lower opening 17 of the lowermost frame block 10.

[0004]

[Problems to be solved by the device]

 By the way, in the rainwater infiltration basin, each of the frame blocks 11 and 12 has a tapered concave portion 18 formed on the upper surface of the frame blocks 10 and 11 therebelow, and has a tapered shape formed on the lower surface of the frame blocks 11 and 12. The convex portions 19 are fitted and overlapped with each other, the uppermost frame block 13 is placed on the frame block 12, and the lowermost frame block 10 is simply supported by the earth and sand below it.

Therefore, the joint between the frame blocks 10, 11, 12, and 13 is weak against the pressure from the lateral direction and the diagonal direction, and the frame is caused by the earth pressure (pressure) applied diagonally downward and downward from the road caused by the vehicle. The blocks 10, 11, 12, 13 are displaced. In addition, the support of the whole basin was weak, and it sometimes settled.

The present invention has been devised in view of the above, and can prevent the frame block from being displaced or settled due to the earth pressure (pressure) applied diagonally downward and downward from the road due to the vehicle. The purpose is to provide a road L-shaped rainwater infiltration basin.

[0007]

[Means for Solving the Problems]

 The present invention relates to a rainwater infiltration basin for road L type, in which a plurality of frame blocks are superposed and a lid block is detachably attached to the uppermost frame block. And the space between the frame blocks is fitted, and under the lowermost frame block of the frame block, a substantially vertical uneven portion having a larger area than the frame block and facing the lower surface of the frame block is formed. It is characterized in that a bottom block formed on the upper surface is fitted.

[0008]

[Action]

 Since the frame blocks adjacent to each other and between the frame block and the bottom block are overlapped with each other by the fitting structure with the substantially vertical uneven portion, the joint structures between the frame blocks and between the frame block and the bottom block are laterally and obliquely connected. It becomes tough or strong against pressure, and even if there is soil pressure applied diagonally downward and downward from the road, there will be no deviation between these blocks.

Further, since the bottom block having a larger area than that of the bottom frame block is fitted under the bottom frame block, the bottom block having a large area can be applied to the earth pressure diagonally downward and downward from the road. To prevent the sinking of the basin.

[0010]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is an embodiment of a rainwater infiltration basin for an L-shaped road according to the present invention.

Reference numerals 1, 2, 3, 4, and 5 are concrete frame blocks. On the upper surface A of the frame block 1, there is provided a convex portion 1a consisting of substantially vertical projections, and the side surface portions thereof are provided inside the basin. A permeation guide hole Q2, which is open like a trumpet, for penetrating the stored rainwater into the ground is formed, and a sewer pipe P for guiding the sewer main is connected.

A concave portion 2b facing the convex portion 1a is formed on the lower surface B of the frame block 2, and a concave portion 2b formed of a substantially vertical groove is formed on the upper surface A of the frame block 2. The lower surface B of the frame block 3 is provided with a convex portion 3a facing the concave portion 2b, and the upper surface A of the frame block 3 is provided with a convex portion 3a composed of a substantially vertical projection. On the lower surface B of the frame block 4, a concave portion 4b facing the convex portion 3a is formed, and on the upper surface A of the frame block 4, a concave portion 4b formed of a substantially vertical groove is formed.

Further, the uppermost frame block 5 is a block having an L-shaped cross section, and a lower surface B thereof is provided with a convex portion 5 a facing the concave portion 4 b of the frame block 2, and an upper surface A thereof is formed. A recess 5b is formed.

The frame blocks 1, 2, 3, 4, and 5 are fitted with and overlapped with substantially vertical concave-convex portions 1a, 2b, 2b, 3a, 3a, 4b, 4b and 5a which are opposed to each other on the upper and lower surfaces A and B. Has been done. On the uppermost frame block 5, a concrete lid block 6 having a rainwater guide hole Q1 is detachably inserted.

On the other hand, 7 is a similar concrete bottom block having a larger area than the lowermost frame block 1, and a reverse cone-shaped permeation guide hole Q3 for permeating rainwater into the ground is formed in the central portion thereof. Further, a concave portion 6b facing the lower surface B of the frame block 1 is formed on the central upper surface A, and is fitted under the lowermost frame block 1.

The rainwater infiltration basin for road L type of the present invention has such a structure. Due to the vehicle traveling on the road, earth pressure (pressure) is applied diagonally downward and downward as seen from the road on the gravel, but the adjacent frame blocks 1, 2, 3, 4 , 5 mutually, between the frame block 5 and the lid block 6 and between the frame block 1 and the bottom block 7 substantially vertical concave and convex portions 1a, 2b, 2b, 3a, 3a, 4b, 4b, 5a, 5b, 6, 1 lower surface B , 6b are overlapped with each other by the fitting structure, so that the joint structures between the frame blocks 1, 2, 3, 4, 5 and between the frame block 5 and the lid block 6 and between the frame block 1 and the bottom block 7 are horizontal. It becomes tough or strong against pressure from the direction and the oblique direction.

Therefore, even if earth pressure is applied obliquely downward and downward from the road, the displacement between the blocks 1, 2, 3, 4, 5, 6, 7 does not occur. Further, since the bottom block 7 having a larger area than the bottom frame block 1 is fitted under the bottom frame block 1, the bottom block 7 having a large area receives the earth pressure applied obliquely downward and downward from the road. be able to. Therefore, sedimentation of the basin is prevented.

The joint relationship between the substantially vertical concave-convex portions formed on the frame blocks 1, 2, 3, 4, 5 and the bottom block 7 is not limited to the above-described embodiment, and for example, the concave-convex joint reverse to that of the embodiment is used. It is desirable to select an appropriate one according to the type of equal size.

Then, the rainwater that has fallen on the road is guided from the rainwater guide hole Q1 formed in the lid block 5 into the basin and stored in the basin, and the rainwater stored in the basin after that is stored in the frame block 1 Inflow into the main sewer through the sewer pipe P provided in the bottom block 7, and permeate into the ground through the permeation guide hole Q2 formed in the frame block 1 and the permeation guide hole Q3 formed in the bottom block 7. To be done.

[0020]

[Effect of device]

 As described above, according to the present invention, the substantially vertical uneven portions facing each other between the frame blocks and between the frame block and the bottom block are formed, and the bottom block wider than the bottom frame block is fitted. As a result, it is possible to prevent the frame block from being displaced or settled due to the earth pressure (pressure) applied diagonally downward and downward from the road due to the vehicle.

[Brief description of drawings]

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

FIG. 2 is a vertical sectional view of a conventional example.

[Explanation of symbols]

 1, 2, 3, 4, 5 Frame blocks 1a, 3a, 5a Substantially vertical projections 2b, 4b, 5b Substantially vertical recesses 6 Lid block 7 Bottom block A Top surface B Bottom surface

Claims (1)

[Scope of utility model registration request] 1. In a rainwater infiltration basin for road L-shaped roads, wherein a plurality of frame blocks are superposed and a lid block is removably inserted in the uppermost frame block, in the upper and lower surfaces of the adjacent frame blocks, facing substantially vertical irregularities are provided. Forming a portion and fitting between the frame blocks, and under the lowermost frame block of the frame block, a substantially vertical uneven portion having a larger area than the frame block and facing the lower surface of the frame block. A rainwater infiltration basin for road L-shape, characterized in that a bottom block formed on the top surface is fitted.