JPH093905A - Face-of-slope planting construction method - Google Patents

Abstract

PURPOSE: To prevent the damage of the face of a slope and simplify a construction method so as to reduce a construction cost by stretching belt material over the tips of a plurality of drain pipes protruded from the face of the slope, so as to cover the face of the slope with a vegetation net, and spraying planting material on the vegetation net for construction. CONSTITUTION: A taper tap is pushed into the rear end part, provided with a slit, of a drain pipe 30 to open the slit, and the rear end part of the drain pipe 30 is guided along the taper face from the slit part so as to be pushed open. In addition, the pipe end projects outside of a drain hole and carrys out the action of an anchor so as to fix the drain pipe 30 to a retaining wall 10. Belt material is stretched over the tips of numerous drain pipes 30 protruded from the face of a slope and bindingly fixed to check pins 33 so as to be stretched over the whole face of the slope. A vegetation net 38 is then held by the belt material to cover the face of slope with the uniform tension of the vegetation net 38, and planting material such as soil dressing earth 41 is sprayed onto the whole vegetation net 38.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a drainage pipe installed in a drainage hole to quickly and inexpensively cut a slope without damaging a retaining wall or a wall surface formed by spraying concrete or mortar. Regarding the method of greening.

[0002]

2. Description of the Related Art Conventionally, when greening a retaining wall or a slope formed by spraying concrete or mortar, studs and bolts have conventionally been used on existing or new wall surfaces formed by concrete or mortar. The main method is to attach a planting net or metal fittings and spray a greening material on it. In such a conventional construction method, since the net for planting and the base material are fixed to the wall surface by tacks or bolts, the wall surface is damaged by driving the tacks or bolts, which may cause cracks. There is a risk of becoming. Furthermore, it requires drilling work to embed the tacks and bolts on the wall surface, noise at the time of drilling is inevitable, and when the slope area is large, the tacking work of the tacks and bolts takes a long time and the construction cost increases There are problems such as.

The present invention provides a construction method for solving the above-mentioned problems in the conventional greening method, and the existing method can be easily and inexpensively used by utilizing a drainage hole or a drainage pipe provided on the slope. Provide a construction method for greening the slope without damaging the wall surface.

[0004]

According to the present invention, there is provided a slope greening method having the following constitution. (1) A greening method that uses a drainage pipe fixed to a slope, where strips are stretched over a plurality of drainage pipe tips protruding from the slope, and the vegetation net is attached to the strip stretched over the slope. To cover the slope, and spraying a greening material onto the slope through the vegetation net to construct the slope. (2) After inserting and fixing a drainage pipe with a stop pin at the tip into the drainage hole on the slope, after binding the band material to the stop pin at the tip of the drainage pipe protruding from the slope and stretching it over the slope The greening method according to (1) above, in which the vegetation net is held by the strip material to cover the slope, and a greening material is sprayed onto the slope through the vegetation net. (3) A drainage pipe having a stop pin at the tip and a slit formed at the rear end is used, the drainage pipe is inserted into the drainage hole of the slope, and a taper plug is provided at the rear end of the drainage pipe protruding behind the slope. The rear end of the drainage pipe is expanded by being pushed in, the drainage pipe is fixed to the slope, and the strip material and the vegetation net are stretched (1)
Greening method. (4) The greening method of (1) above, in which the upper end of the vegetation net that covers the slope is extended to the back side of the slope and fixed to the ground.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings. 1 and 2 are schematic cross-sectional views of slopes on which the greening method of the present invention has been carried out, FIG. 1 shows an example of construction on a retaining wall, and FIG. 2 shows an example of construction on concrete or mortar spray slopes. Show. 3 is a schematic cross-sectional view of the drainage pipe fixed to the slope, and FIG. 4 is an external view of the drainage pipe and the taper plug, and FIG.
[Fig. 3] is a schematic front view of a slope covered with a vegetation net. In the following, we will mainly explain the greening of the retaining wall slope, but
The greening method of the present invention is similarly applied to the slope 20 formed by spraying concrete or mortar.

As shown in FIGS. 1 and 2, the concrete retaining wall 10 or the slope 20 formed by spraying concrete or mortar is usually provided with a large number of holes for draining water at appropriate intervals. The present invention is a greening method using the existing drainage hole or the drainage pipe 30 provided in the drainage hole.

When the existing drainage hole is not provided with a drainage pipe, the drainage pipe 30 is provided with a front end 31 and a rear end 32 thereof.
It is used by inserting it so that it protrudes from the drainage hole. The drainage pipe 3
A preferred shape of 0 is shown in FIGS. The illustrated drainage pipe 30 has a stop pin 33 at its tip 31. Stop pin 3
The shape of 3 is not limited. Preferably, as an example, as shown in FIG. 4, a cross-shaped pin protruding in four directions on the outer circumference of the drainage pipe is used. The stop pin 33 may be plate-shaped or rod-shaped. The drainage pipe 30 having the stop pin 33 at the tip is inserted into the drainage hole of the retaining wall from the rear end side and fixed. The stop pin 33 can be attached after fixing the water drain pipe 30 to the retaining wall, but it is preferable to use the water drain pipe 30 having the stop pin 33 in advance.

The drainage pipe 30 is provided with a slit 34 and a taper plug 35 at the rear end of the pipe as a fixing means. A plurality of slits 34 are provided along the pipe length, and the plug 35 is pushed into the rear end portion where the slits 33 are provided. A tapered taper is formed on the body of the stopper 35, and a large number of small holes 36 for draining water are provided on the lid surface of the stopper 35. The outer diameter of the lid surface is formed slightly larger than the inner diameter of the drain pipe 30. The length and taper angle of these slits are appropriately determined according to the material and thickness of the drainage pipe, the insertion depth of the taper plug 35, and the like. Usually, the length of the slit 34 is 3 to 7 cm.

When the taper plug 35 is pushed into the rear end of the drainage pipe 30 where the slit 34 is provided, the slit 34 opens,
According to the insertion depth of the stopper 35, the rear end portion of the drainage pipe 30 is guided and pushed out from the slit 34 by the tapered surface of the stopper 35, and the pipe end projects to the outside of the drainage hole. As a result, the protruding rear end portion acts as an anchor, and the drainage pipe 30 is fixed to the retaining wall 10. Further, since the rear end of the drainage pipe 30 is closed by the taper plug 35, the outflow of earth and sand behind the retaining wall through the drainage pipe 30 is prevented. On the other hand, the taper plug 35
Since a large number of small holes 36 for draining water are provided in the, the water behind the retaining wall can be discharged through the small holes 36.

In the case of a new retaining wall with no earth and sand behind it, or a retaining wall from which earth and sand have been removed, the taper stopper 35 is obtained by pushing the taper stopper 35 into the rear end of the drain pipe 30 protruding behind the retaining wall. Fix it. For an existing retaining wall whose back is filled with earth and sand, a taper plug 35 should be attached to the rear end of the drain pipe 30 in advance.
Is inserted shallowly, and the taper plug 35 is pushed in by inserting the drain pipe 30. Specifically, the taper plug 35 is shallowly inserted at the rear end of the drainage pipe 30 provided with the slit 34,
The drain pipe 30 is inserted into the drain hole of the retaining wall 10 from the rear end thereof. When the rear end of the drainage pipe 30 protrudes behind the retaining wall, it hits against the earth and sand behind, and the taper plug 35 is pushed into the drainage pipe by this resistance, and the slit 34 is expanded.
The rear end portion of the drainage pipe 30 projects and is fixed to the outside of the drainage hole.

When the drainage pipe 30 is already installed on the retaining wall 10, a slit 34 similar to the above is provided at the rear end of the drainage pipe 30, and a taper plug 35 is driven to mount the drainage pipe 30 on the retaining wall 10. You may fix it. When the rear end of the existing drainage pipe does not project behind the retaining wall, the rear is dug up and the taper plug 35 is driven. When the drainage pipe 30 is tightly fitted in the drainage hole or is firmly fixed to the retaining wall beforehand by cement, mortar, or anchor bolts, it is not necessary to fix the taper plug 35. Even if the drainage pipes 30 are installed on the retaining wall, if the number of the drainage pipes 30 is smaller than the area to be planted, it is advisable to form the drainage holes or install the drainage pipes 30 in the existing drainage holes. preferable.

After fixing the drainage pipe 30, the strip 37 is hung over the ends of the drainage pipes protruding from the slope, and the strip 37 is bundled and fixed to the stop pin 33, and the strip is attached to the entire slope to be greened. Stretch out 37. The strip 37 is a member for holding the vegetation net 38, and is wound around the tip of the drainage pipe to vegetation net 38.
A fibrous tape having a constant width is preferably used so as to easily hold the tape, but a rope may be used. From the viewpoint of weather resistance, a suitable material is a chemical fiber, and a cloth band material is also used from the viewpoint of environmental protection after greening.

The strip 37 holds the vegetation net 38, and the slope to be greened is covered with the vegetation net 38.
The band 37 and the vegetation net 38 may be bundled and fixed at appropriate places. The vegetation net 38 is sufficient as that used in normal greening construction. By holding the vegetation net 38 with the band material 37, the vegetation net 38 can be covered with a uniform tension, and a constant space can be maintained between the vegetation net 38 and the slope 20 throughout the slope to be greened. it can. The upper end 39 of the vegetation net 38 may be extended behind the retaining wall and fixed to the ground with anchor pins 40 or the like. If necessary, synthetic fiber ropes may be stretched vertically and horizontally, and the ends may be fixed with anchor pins to reinforce the vegetation net 38. Further, a pin may be driven into the drainage hole of the retaining wall, and the vegetation net 38 may be bound to this to reinforce.

After covering the vegetation net 38, a greening material such as the soil 41 is sprayed on the entire vegetation net 38 to a predetermined thickness. The soil for soil 41 may be a mixture of plant seeds with fertilizer in advance, or the soil for soil 41 may be sprayed before plant seeds are planted. The spraying of the soil may be done in the usual way. Generally, since the layer thickness of the soil 41 is preferably 10 cm or more, the length of the tip of the drainage pipe protruding from the slope 20 may be set to about 10 cm in advance. The soil 41 may be provided so as to slightly cover the tip of the drainage pipe, or the tip of the drainage pipe may be exposed.
In either case, the soil 41 sprayed on the slope 20
Since the water discharged from the ground behind the retaining wall is guided through the drain pipe 30, the entire soil is replenished with water.

[0015]

The greening method of the present invention is a method of fixing a vegetation net by utilizing the water drainage holes of the retaining wall and spraying a greening material such as soil on the net without damaging the slope. Since the construction method is simple, the number of construction days can be small. Moreover, since no special machinery is required other than the spraying process, the construction cost is low and the economy is excellent.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an example in which the construction method of the present invention is applied to a slope of a retaining wall.

FIG. 2 is a schematic sectional view showing an example in which the construction method of the present invention is applied to a concrete or mortar spray slope.

FIG. 3 is a schematic sectional view of a drainage pipe fixed to a slope.

FIG. 4 is an external view of a drainage pipe and a taper plug used in the present invention.

FIG. 5 is a schematic front view of a slope covered with a vegetation net.

[Explanation of symbols]

 10-Retaining wall 20-Slope 30-Drainage pipe 31-Front end 32-Rear end 33-Stop pin 34-Slit 35-Taper plug 36-Small hole 37-Strip 38-Vegetation net 39-Vegetation net upper end 40- Anchor Pin 41-Soil

Claims (4)

[Claims] 1. A greening method using a drainage pipe fixed to a slope, wherein strips are stretched over a plurality of drainage pipe tips protruding from the slope, and the strips stretched over the slope are A method for planting a slope, comprising holding a vegetation net to cover the slope, and spraying a green material onto the slope through the vegetation net. 2. A drainage pipe having a stop pin at its tip is inserted into and fixed to a drainage hole on the slope, and the stopper pin at the tip of the drainage pipe protruding from the slope is bound with a band material and stretched over the slope. After that, the vegetation net is held by the strip material to cover the slope, and the vegetation net is sprayed onto the slope through the vegetation net. 3. A drainage pipe having a stop pin at the tip and a slit formed at the rear end is used, the drainage pipe is inserted into a drainage hole on the slope, and the rear end of the drainage pipe protruding behind the slope is tapered. The greening method according to claim 1, wherein the stopper is pushed in to spread the rear end of the drainage pipe, fix the drainage pipe on the slope, and stretch the belt material and the vegetation net. 4. The greening method according to claim 1, wherein an upper end portion of the vegetation net covering the slope is extended to the back side of the slope and fixed to the ground.