JPS60188532A - Sheathing device of slope - Google Patents

Abstract

PURPOSE:To obtain a sheathing work of a slope with good efficiency by a method in which a cage having a valley side compartment and a mountain side compartment inside is set on a slope, soil with seeds and fertilizer is packed through a sheet in the valley compartment, and stones are packed in the mountain side compartment. CONSTITUTION:The inside of a cage 5 to be laid on a slope (a) on the road 6 side is divided into a valley side compartment 5b2 and a mountain side compartment 5b1. Stones 9 are packed in the mountain side compartment 5b1, and a sheet 1 is laid on the whole inside of the valley side compartment 5b2 and soil 11 is packed on the sheet 1. On the sheet 1 having a water permeability, plant seeds and fertilizer are dispersed in bonded state. Soft sloped ground of great inclination angles can thus be sheathed and improved with good efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a slope earth retaining system that uses futon baskets to improve the performance of the slopes where Tsuchiura is to be built, and at the same time, grows plants on the valley side of the slopes to perform greening with vegetation. Regarding equipment.

Slopes with relatively low ground strength, such as local streams and road cuts, are protected by some form of soil retaining to prevent natural collapse caused by wind and rain.

One of these is the so-called slope construction method, in which a concrete, plastic, or steel frame is constructed in a continuous lattice pattern on the slope to be earth-retained.

By the way, even if the slope angle is small, the slope will gradually begin to collapse if exposed to wind and rain for a long time, but on newly created slopes, the rate of collapse is faster because there are no plants growing on the slope. Ta. Conventionally, it has been known to grow plants as a countermeasure against this problem, but this method can be easily applied on-site and can be used to improve the slope surface using greening mats and greening cloaks that allow plants to grow efficiently and reliably. The applicant has already devised and invented the earth retaining device in 1982-
No. 50735 (Japanese Utility Model Application No. 53-128255); known as Japanese Patent Publication No. 42721-1983 (Japanese Patent Application No. 51-31917).

However, the above-mentioned conventional inventions are suitable for a relatively small-scale earth retaining method in which a greening mantle is laid in accordance with the topography of the construction site and the slope angle of the slope, but they are suitable for the exposed side of the slope, that is, the valley side. On steep slopes, it is necessary to install and reinforce the antibodies on which the greening mantle is to be attached, as well as to attach and install the greening mantle to the antibodies. In addition, the ground on which slopes are formed varies in hardness and softness, and especially in soft ground or ground with high water retention capacity, appropriate reinforcement and improved drainage of the ground itself are required. These construction works and soil improvement will also provide an environment suitable for growing plants.

In addition, in flood control areas such as port construction, river construction, and dam construction, futon baskets are generally used to suppress and protect slopes with the weight of connecting stones, and their crushing action weakens the flow velocity of flowing water, allowing flood control and bank protection. It was peeling off.

The present invention was made in view of the above-mentioned points, and its purpose is to make it possible to reliably and efficiently retain earth with a small number of man-hours even on slopes that are soft or have a large slope. Moreover, it is an object of the present invention to provide a slope earth retaining device that can easily improve the soil quality of the slope.

The slope earth retaining device of the present invention uses performance or futon cages,
The storage chamber is formed on the exposed side of the slope, that is, on the valley side, and is water-permeable and contains sheets and bags with plant seeds and fertilizers scattered and glued thereon, and soil, humus, leaf mold, etc.
It is characterized by the fact that it is used for retaining soil on slopes by planting plants by filling it with fertilizer.

The present invention will be explained below with reference to the drawings.

Reference numeral 1 denotes a sheet, and the sheet 1 is made of a water-permeable and flexible material, such as a material made of coarsely plain-woven synthetic resin fibers to increase the coefficient of friction. , fertilizer 3, soil conditioner is scattered using adhesive, etc.
Glued. The plants used in this case are those that have a high growth and rooting rate, as well as a high reproduction rate and are not easily affected by pests and diseases. In the case of trees, black pine, Akasha, Nemu, etc. are used.

Moreover, by adhering reinforcing material 4 as necessary, seeds 2, fertilizer 3, etc. can be prevented from falling off. The reinforcing material 4 used in this case is, for example, one that has a high water permeability and is easy to solve by /8.
Fibrous paper is used. Furthermore, the blending ratio of the fertilizer 3 is as follows:
In principle, N, P, and K are distributed equally, but this mixing ratio is just an example and can be set arbitrarily depending on the plant to be grown. The soil conditioner also varies depending on the type of plant to be grown.
For example, lime and PH adjustment furnaces are used. The sheet 1 shown in Fig. 4 is easy to process and mass-produce, so it is rolled up into a roll and its length can be adjusted to suit the slope angle and topography of the slope a at the construction site. You can also cut it into In addition, in terms of performance 5, it is divided into at least two chambers with a partition 5a provided inside it as a boundary, and most of the mountain side 8 is used as a storage chamber 5bi for packing stones 9 described later, and the valley side 10 of the slope a A storage chamber 5b2 is provided in a portion to store the seat 1 or the bag 1'. This storage room 5b+,
5b2 unravels the mesh or part of the net, ±11, earth and sand,
It is packed with soil for plants such as fertilizer, and filled with stones 9.

One embodiment of the present invention has the above-mentioned configuration, and the operation and construction method will be explained below.

First, performance 5 is laid on slope a facing road 6.

The installation width and installation length of this performance 5 are determined according to the inclination angle of the slope a and the hardness and softness of the ground at the construction site to be created.

In this case, the pillars 7 can be set to any width and spacing as needed.
erect it and reinforce it. As this support 7, a pillar such as a pine log or a steel pile is used, and the performance 5 is firmly fixed with wire or the like by driving it in at the construction site.

Next, stones 9 are packed inside the mountain side 8 of the partition 5a provided inside the performance 5, and if necessary, fresh concrete is poured to ensure fixation to the slope a. In this case, the stones to be used include large cobbles and broken stones made by unraveling the mesh of the cage used, as well as large, water-permeable sheets that can be used to make bed-dug earth and sand that can be easily placed on site. Depending on the situation, mix leaf mold or use stones for filling.

Then, the seat 1 is stored in the storage chamber 5b2 of performance 5. In this case, the sheet 1 may be laid from the wall surface 5c to the bottom surface 5d and the partition 5a of the valley side 10 of the storage chamber 5b2, further on both left and right sides, or it may be laid in contact only with the wall surface 5c of the valley side 10. good. ±11 stuffed into the storage chamber 5b2,
If there is a risk of mulch or fertilizer flowing out, use the storage room 5b.
A type 2 box-shaped bag with seeds, fertilizer, etc. attached to the wall 5c side is used. This sheet 1 is fixed in the storage chamber 5b2, but this fixing means is a wire or U.
It can be easily fixed by binding using a letter-shaped stable. Further, if necessary, a water-retaining sheet formed of a synthetic resin sheet or the like may be laid on the bottom surface of the sheet 1 to provide a water-retaining effect depending on the type of plant to be grown.

Finally, soil 11 as soil is packed into the storage chamber Stz.

In this way, the slope a is divided into two rooms with the partition 5a as the border,
Since the storage chamber Sbl, which forms the majority of the storage chamber, is covered with stones 9, its surface will not be eroded by wind and rain, and drainage will be good.

Therefore, even if the slope a is formed of ground with a large water-holding capacity, the soil quality of the slope a can be improved by draining water from the stones 9 packed within performance 5, and the large weight of the stones 9 creates a strong slope that does not easily collapse. A can be formed. In addition, because the stones 9 are packed inside performance 5 and a large weight is applied to the slope a, and the mesh structure has a large friction with the surface of the slope a, the ground is soft. It won't fall off.

And another storage chamber 5 formed in the performance 5 in contact with the road 6
Seeds 2 of plants and fertilizer 3 for fertilizing the seeds are scattered and glued onto the sheet 1 stored in b2 to form soil 11. Because they are filled with humus, fertilizer, etc., the roots of plants penetrate deep into the soil and become intertwined with each other. In addition, even if the sheet 1 is exposed to the wind and rain during transportation or germination, the plant seeds 2, fertilizer 3, etc. are suppressed and protected by the reinforcing agent 4, so they are prevented from falling off or flowing out from the sheet 1. Prevented.

In addition, the ±11 packed in the storage chamber 5b2 of performance 5 is blocked by the sheet 1 and the reinforcing agent 4, so that its outflow is prevented. In addition, even if there is rainfall, since the sheet 1 and the reinforcing agent 4 are permeable, the water will drain away and the plants will be able to grow healthy without root rot. Secure soil retention.

It goes without saying that plants grown on slope a not only increase the strength of slope a, but also have a more attractive finished appearance.

Further, FIGS. 5 and 6 show a second embodiment of the present invention.

In this embodiment, a futon basket 5', which is a type of high-performance futon basket, is used, and the inside of this futon basket 5' is divided into two storage chambers 5'b+ and 5'b2 with a partition 5'a as a boundary, and a lower compartment. Due to the configuration in which the futon baskets 5' are stacked in several stages on the side that contacts the road 6 on the slope a of the housing chamber 5' b2 of the futon baskets 5' located therein, the upper and lower futon baskets 5' of the mesh structure are mutually stacked. Since the contact area of the slope a increases and becomes stable, the frictional resistance increases and the weight increases, so even if the slope a is steeply sloped, the earth retaining effect of the slope a is greater than that of the previous embodiment.

7 and 8 show a third embodiment of the present invention. In this embodiment, the inside of the futon basket 5' laid along the slope a is partitioned by a partition wall 5'a, and the vertical direction is divided into two sections. Containment room 5'
b+, 5' b2, of which the upper storage chamber 5
By putting soil, humus, fertilizer, etc. into b2, and by filling the lower storage chamber 5' b1 with stones 9, etc. to create a vegetation area, we aim to fully green the slope a and prevent freezing in cold regions. , which is designed to prevent frozen soil with a net.

As described above, the present invention provides water-permeable plant seeds and fertilizers that are intertwined, scattered, and adhered within the storage chamber on the valley side, which is divided into two rooms by a partition provided inside the futon basket. Because the soil is packed into the soil by accommodating a sheet made of plastic or a bag made from this sheet, soil retention can be carried out reliably and efficiently with a small number of man-hours even on soft slopes or slopes with large slope angles. Moreover, it is easy to improve the soil quality of slopes.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention, Fig. 2 is a sectional view showing an example of the usage state, Fig. 3 is a sectional view showing the other side of the usage state, and Fig. 4 shows an example of the device used in this embodiment, and is a large-scale perspective view, and FIG. 5 shows a second embodiment of the present invention! FIG. 7 is a perspective view showing the third embodiment of the present invention, and FIG. 8 is a sectional view showing the use state. 1... Sheet, 2... Seed, 3...
...Fertilizer, 5...Performance, 5'...Futon basket, 5a, 5'a...IJ cutting, 5b+,
5b2; 5' b+, 5' b2...containment room, 6...road, 8...mountain side, 9...
...Stone, 1 agent Hide Takino b2 Figure 5 5'd 9

Claims (1)

[Claims] The interior of the futon basket is divided into multiple storage chambers by partitions, and a sheet with water permeability and on which plant seeds and fertilizers are scattered or glued, or a hang formed from the sheet is placed in one of the storage chambers. The storage chamber on the valley side or the upper part of the valley side is filled with stones, earth and sand, and the storage chamber on the valley side or the bag is filled with soil, humus, fertilizer, etc. A slope earth retaining device that is packed to promote and encourage the growth of grass and trees.