JPS6028793B2 - Cylindrical body containing fertilizer for slope greening - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is for use in slope greening, especially for fertilizer application that is tightly fixed on slope contour lines to maintain the fertilizer effect after slope greening construction and to stabilize the vegetation base layer. This relates to a cylindrical body.

The recent situation with slope protection works is that it has become necessary to green even hard slopes, which have traditionally been carried out using mortar spraying, and various types of greening work are being carried out in conjunction with structures. However, it is extremely expensive. Hard slopes are usually steep and have poor conditions, and problems with such slopes are the erosion and drying of the vegetation base layer and the loss of fertilizer nutrients.
In particular, it is said that about 80% of fertilizer nutrients are washed away to the bottom of the slope on slopes with slopes of 8 to 5 minutes (50o to 60o), and vegetation decline due to lack of fertilizer occurs every 1 to 2 years after construction. ing.

At such sites, it would be possible to recover by managing fertilizer towers, but this is not actually done due to economic reasons.
The present invention examines a method of supplying fertilizer nutrients over a long period of time from the initial stage and stabilizing the vegetation base layer to maintain greening for a long period of time on slopes with steep slopes. However, the present invention was achieved.

The details of the present invention will be explained below with reference to examples. Various materials can be considered for the bag body used in the present invention, but after considering strength, flexibility, breathability, and corrosion resistance, a nonwoven fabric made of entangled chemical fibers was found to be the most suitable. This non-woven fabric is formed into a cylindrical body to contain fertilizer, etc., and is anchored to the slope with anchors, nails, etc., so it has the strength to not tear easily and can be used on slopes. It must have the flexibility to respond quickly to irregularities in the soil, and most importantly, the extent to which fertilizer nutrients can flow out is
The amount is not so large that it is washed away in a short period of time, but it has small gaps that allow it to be gradually eluted, and it maintains its cylindrical shape for a period of time until the fertilizer nutrients have finished flowing out, and has the role of retaining the base layer of vegetation. It must be corrosion resistant.

Considering the above points, among nonwoven fabrics, thickness 0.1 to 3. Misaki, tensile strength vertical 10-25k9/5 arc, horizontal 10-3
0kg/5kg, airflow rate 10-300cc/c/sec
We decided on a nonwoven fabric.

(In the following description, non-woven fabric simply refers to the above-mentioned non-woven fabric.) This non-woven fabric is sewn together to form a bag, and fertilizer and other materials are contained in the bag to the extent that it does not lose its flexibility, resulting in a cylindrical fertilizer-containing material. It is set to 1.

The fertilizer stored in the cylindrical body 1 is a fast-release fertilizer that has a fertilizing effect immediately after construction (for example, general compound chemical fertilizer), or a slow-release fertilizer that has a fertilizing effect after about 6 months after construction (for example, IB Chisso, C
DU), then mix and use a slow-release fertilizer (for example, resin-coated fertilizer) one or two years after construction.

A slow-release fertilizer is a mixture of polyolefin resin and a surfactant, and the timing of the fertilizer's effectiveness is usually adjusted by adjusting the amount of the surfactant. In addition to fertilizer, vermiculite is used as a water-retaining material, park compost, bentonite, or lime are sometimes stored in the cylindrical body as a soil conditioner.
In this case, use will depend on the site conditions investigated in advance. The shape of the cylindrical body is about 1.0 to 10.0 skin, and the normal length is 3.0 skin and 1.0 skin. Although this is an enemy, it is not limited to this, but includes 1. It is possible to connect the textbooks in units of plates, or to divide the appropriate parts and reduce the movement of the base material to make the length 5 to 10 hours.By doing this, it is possible to make it easier to install the slope. . Next, to explain the construction method, the contour line of the slope 30 is spaced at intervals of 30 to 100 degrees (determined based on the hardness of the slope, slope, and fertilizer dispersion status)
The fertilizer-containing cylindrical body 1 of the present invention is attached to the cylindrical body 1 and anchored with anchor pins 2 and pegs 3, and construction is carried out. Usually, a net 4 made of metal or plastic is stretched over the entire surface of the slope, and the slope and the cylindrical body 1 are fixed by the net 4. In addition to the above-mentioned contour lines, the fertilizer-containing cylindrical bodies 1 may be arranged in a staggered arrangement as shown in FIG. 2. Once the above steps have been completed, use a mortar sprayer, mini-crete pump, etc. to spread the seeds, fertilizer, organic fibers, organic compost, mineral water retaining material, and a small amount of cement or wash-off prevention material such as adhesive, sometimes with sand. , the soil is mixed to form the sprayed vegetation base layer 5.

Incidentally, if an asphalt emulsion or vinyl acetate emulsion is sprayed on top of this, the surface of the sprayed vegetation base layer will be more stable and seed efficiency will be improved.

As described above, the present invention has a tube made of a nonwoven fabric that has strength that cannot be broken by a slight physical impact, has flexibility that can quickly respond to unevenness on a slope, and has an aeration rate that allows fertilizer nutrients to be gradually eluted. Since it is a fertilizer-containing cylindrical body containing fertilizer, soil conditioner, and water retaining material, the nonwoven fabric that makes up the cylindrical body can regulate the outflow of fertilizer nutrients, which conventionally were almost lost. , it has become possible to achieve a fertilizer effect of 80% or more.

By using three types of fertilizers such as fast-acting, mature-acting, and slow-acting fertilizers to be stored in this cylindrical body, it is possible to supply Wataru Funahamoe fertilizer for a long period of time from the beginning of construction, so the fertilizer can be used up in a short period of time. Combining this with the non-woven fabric's ability to suppress fertilizer runoff, we are able to further improve the sustainability of the fertilizer's effectiveness, making it possible to maintain vigorous vegetation over a long period of time. It became. In addition, the nonwoven fabric used for the cylindrical body of the present invention has appropriate flexibility and has been carefully considered in terms of strength and corrosion resistance, so it prevents the vegetation base layer applied by spraying etc. from washing away and stabilizes it. This prevents the destruction of seeds, fertilizers, etc. caused by rain, etc., to the vegetation base layer.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment in which the fertilizer-containing cylindrical body of the present invention is stretched in a contour line shape, Fig. 2 is a front view showing the embodiment in which the fertilizer-containing cylindrical body is stretched in a contour line shape, and Fig. 3 is a front view showing an embodiment in which the fertilizer-containing cylindrical body of the present invention is stretched in a contour line shape. FIG. 4 is a partially enlarged view of the construction section showing an embodiment of the fertilizer-containing cylindrical body of the present invention. In the figure, 1 is the fertilizer-containing cylindrical body of the present invention, 2 is the anchor pin, and 3 is the fertilizer-containing cylindrical body of the present invention.
4 is a dowel, 4 is a mesh body, and 5 is a vegetation base layer. 3rd picture book / Z book closing diagram

Claims (1)

[Claims] 1 Made of chemical fiber, thickness 0.1 to 3.0 mm,
Tensile strength vertical 10-25kg/5cm, horizontal 10-30
kg/5cm, ventilation rate 10-300cc/cm/sec
Thickness 1.0~10.0cm made of nonwoven fabric
A cylindrical body containing fertilizer for slope greening, characterized in that the fertilizer is filled in a bag body of 1.5 mm in a flexible manner to the extent that the fertilizer can be brought into immediate contact with the slope surface.