JP3158113B2 - Single earth pressure type concrete gutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single earth pressure type concrete gutter of a precast product mainly used for drainage, such as at a road edge or a site boundary, and also having a retaining function.

[0002]

2. Description of the Related Art When a single earth pressure type concrete gutter is installed at the end of a road for drainage, as shown in FIG. 9, it receives a lateral pressure P in a substantially horizontal direction which causes overturning or sliding. For this reason, conventional models have been known in the Japanese Utility Model Publication No. 63-95789 and 63-10440.
As shown in No. 4, etc., an overhang portion 1a is provided on the lower edge of one of the side walls of the gutter block 1 so as to receive the load W of the earth pressure that overcomes the horizontal side pressure P and prevent overturning or sliding. Like that. Conventionally, the overhang portion 1a was integrally molded, but it was disclosed in Japanese Utility Model Laid-Open No. 1-124890, Japanese Patent Laid-Open No. 8-270060,
-292470, etc., considering the ease of molding, transportation, workability, etc., the gutter block 1 and the overhang
A type in which 1a is formed separately and then used integrally by bolting or the like at the time of construction has been used.

[0003]

In the construction of a conventional earth pressure type concrete gutter provided with an overhang portion 1a at the lower edge of the side wall of the gutter block 1, the width of the foundation 2 is required to be large, and the overhang portion is required. The amount of foundation excavation (excavation width La) is also increased by the amount provided with 1a, and construction is difficult when there is an existing structure. Therefore, we examined a single earth pressure type concrete gutter with a small amount of excavation, good stability after installation, and little influence on existing structures.

[0004]

As a result of examining the above-mentioned problems, in the concrete gutter forming the water channel, an earth-sand receiving bag portion having an upper opening is provided on a side wall on the earth pressure action side so that a larger load is applied to an upper portion than to a lower portion. Provided. The sediment receiving bag portion of the upper opening referred to here is a structure in which a space that is wider than the lower portion of the side wall is formed by the bag forming wall and the upper portion is opened to allow storage of the sediment. The earth and sand loading shelf is to provide a shelf member capable of placing earth and sand at a position approximately one-third of the side wall height direction. The walls rise to back may sediment receiving bag portion provided in the shelf member. The shelf member is preferably made of concrete, but may be a metal plate or a mesh member. The anchor is a linear member, mesh, or the like buried in the earth and sand in a substantially horizontal direction so that the concrete gutter does not slide even when the lateral pressure P is applied in the substantially horizontal direction.

[0005] migraine soil pressure type concrete gutter of the present invention provided with an integral portion of a side wall of sediment受袋portion of the side wall, by providing the water passage holes upwards from <br/> position of sediment受袋unit, the permeate of the porous pavement can be reliably drained into the waterways after more collecting sediment受袋unit.

[0006]

FIG. 1 is a perspective view of a first embodiment of a gutter block according to the present invention, and FIG. 2 is a cross-sectional view after a single earth pressure type concrete gutter is constructed. In this embodiment, a sediment receiving bag portion 12 having an upper opening is provided on a side wall 11 of a gutter block 10. The space where the upper part is wider than the lower part is the bag forming wall 13 and the side wall 11
And the upper part is opened to allow the introduction of earth and sand. Due to the introduction of earth and sand, the weight of the gutter block 10 is increased, and the resistance to falling and sliding is increased despite the small excavation area (excavation width Lb) of the foundation 19 portion. Further, since the working surface of the earth pressure is inclined, the horizontal force of the earth pressure is reduced. Further, the sediment receiving bag portion 12 receives the permeated water of the permeable pavement 14 and can be guided from the water passage hole 15 provided in the side wall 11 into the gutter.

FIG. 3 shows a sediment loading in the first stage of the second embodiment of the present invention.
FIG. 4 is a perspective view of a shelf , and FIG. 4 is a cross-sectional view after construction. In this embodiment, a sediment loading shelf 16 is provided on the side wall 11 on the earth pressure action side so that a large load is applied to the upper part of the gutter block 10. The gutter block 10 and the earth and sand loading shelf 16 are formed separately from each other, and are integrated by the fixing means 17. The fixing means 17 here is provided with a bolt insertion hole 17a in the earth and sand loading shelf 16 and an embedded nut 17b in the side wall 11 on the earth pressure action side of the gutter block 10, and is bolted from the earth and sand loading shelf 16 side. By providing the earth and sand loading shelf 16, earth and sand can be placed at a substantially middle portion in the height direction of the side wall or at a position higher than the middle portion, and its own weight increases, and resistance to falling and sliding increases.

FIG. 5 is a perspective view of a second embodiment of the present invention, and FIG. 6 is a sectional view after construction. The sediment loading rack 16 has a sediment receiving bag portion 12 provided with a wall 18 rising to the back. Also in this example, the gutter block 10 and the earth and sand loading shelf 16 are formed separately from each other and integrated by the fixing means 17. In the case of a single earth pressure type concrete gutter, earth and sand can be placed at a high position as in the previous examples, the own weight increases, and the excavation area (excavation width Lb) of the 19 foundations is small, but it falls over And high resistance to sliding.

FIG. 7 shows that a reinforcing material is attached to earth and sand in a substantially horizontal direction so that the concrete gutter does not slide even under a substantially horizontal lateral pressure P. As the type of the reinforcing material, a belt-shaped steel material, a lattice-shaped or planar geotextile made of a polymer material, a reinforcing bar with an anchor plate, or the like is used. A linear member can be embedded as an anchor. The figure is a cross-sectional view of an example constructed using a linear or planar member 20. In this example, a linear or planar member 20 as an anchor is made of a reinforcing bar, and is bolted to a connection fitting 21 embedded in a side wall of the side groove block 10. A construction in which an embedding nut is embedded in the side wall and a screw portion provided at the anchor end is screwed into the side wall also has a high construction efficiency. Despite the small excavation area of the 19 foundations, there is an effect of having high resistance to overturning and sliding.

FIG. 8 is a sectional view of an embodiment in which the side groove block 10 of the present invention is a U-shaped type. In this embodiment, a sediment loading shelf 16 is provided on the side wall 11 on the earth pressure acting side so that a large load is applied to the upper part of the U-shaped gutter block 10. Gutter block 10
The sand shelves 16 and the earth and sand loading shelf 16 are formed separately from each other and are integrated by the fixing means 17, but they can also be integrally formed. By providing the earth and sand loading shelf 16, earth and sand can be placed at a substantially middle part in the height direction of the side wall or at a position higher than the middle part, the weight of the earth becomes large, and the resistance to sliding increases. To the back of this sediment loading shelf 16 is shown in FIGS.
It is good to provide such a rising wall.

[0011]

The single earth pressure type concrete gutter according to the present invention has the following advantages. (1) Since its own weight is increased, it has high resistance to overturning and sliding. Further, since the working surface of the earth pressure is inclined, the horizontal force of the earth pressure is reduced. From these, it is totally safe. (2) The excavation width of the foundation is smaller and the amount of excavated soil is minimized as compared with the conventional earth pressure type concrete gutter. (3) Because the excavation width is small, the impact on existing buildings can be minimized. (4) In the case of permeable pavement, permeated water can be reliably captured and drained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of a gutter block according to the present invention.

FIG. 2 is a cross-sectional view after construction on a single earth pressure type concrete gutter.

3 is a perspective view of a loading shelf block for the side grooves.

FIG. 4 is a cross-sectional view after construction on a single earth pressure type concrete gutter.

5 is a perspective view of a second embodiment of a block for the side grooves.

FIG. 6 is a cross-sectional view after construction on a single earth pressure type concrete gutter.

7 is a cross-sectional view after application of a real施例block for side grooves.

FIG. 8 is a sectional view of an embodiment of a U -type gutter block.

FIG. 9 is a sectional view of a conventional earth pressure type concrete gutter.

[Explanation of symbols]

 10 Gutter block 11 Side wall 12 Sediment receiving bag part 13 Bag forming wall 14 Water-permeable pavement 15 Water hole 16 Sediment loading shelf 17 Fixing means 17a Bolt insertion hole 17b Embedded nut 18 Rising wall 19 Foundation 20 Linear or planar member 21 Connection bracket La Drilling width Lb Drilling width

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-109438 (JP, A) JP-A 60-8775 (JP, U) JP-A 62-16179 (JP, U) JP-A 57- 147380 (JP, U) JP 45-32180 (JP, B1) (58) Fields investigated (Int. Cl. ⁷ , DB name) E03F 5/04-5/046

Claims (2)

(57) [Claims] In a concrete gutter for forming a water channel, a space whose upper portion is wider than its lower portion is formed on a side wall on the earth pressure action side.
Sandbag with upper opening formed by the part forming wall and the side wall
Part, and the upper part is passed through from the part integrated with the side wall of the sediment receiving bag part.
A single earth pressure type concrete gutter characterized by having water holes . 2. A concrete gutter for forming a water channel.
From the sediment loading shelf and the back
A sediment receiving bag portion is provided by the rising wall of the sediment receiving bag.
Piece soil pressure type concrete gutter you characterized in that a water passage hole to the upper than the integral part of the side wall parts.