JPH06292455A - Soil-dressing material for carrying with spraying machine - Google Patents

Abstract

PURPOSE:To provide a soil-dressing material comprising black soil, having a low water content and suitable for mechanically carrying with a spraying machine. CONSTITUTION:Black soil is mixed with at least a water-absorbing material having a water-holding property and a viscosity-reducing material not having a water-holding property. The black soil, coconut shell chips as the water- absorbing material having a water-holding property and sand as the viscosity- reducing agent not having the water-holding property are mixed in a volume ratio 40-50%:10-20%:40-50%, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soil material for planting, which is transported by a spraying machine when vegetation is to be planted in rock, and in particular black soil.

[0002]

2. Description of the Related Art Conventionally, vegetation with turf has been generally used for rock greening. In that case, peat moss and bark compost were mainly used as a base material for vegetation on the rock surface. Since these are not viscous and lightweight, they can be easily transported by a spraying machine. However, in recent years, there has been an increasing demand for landscape greening to restore the environment, and the need for rock greening with trees has increased. In the case of tree vegetation,
From the point of germination rate, planting with seedlings is more important than sowing, so a large amount of soil is required. Although black soil is suitable as such a soil, it cannot be mechanically transported due to the nature of the soil, and the transport had to rely exclusively on the labor of cranes and people.

[0003]

However, if the black soil was transported using human power or a crane as in the conventional case,
The cost was high, and it was practically difficult to use black clay as the customer soil material. Therefore, the applicant of the present invention conducted a study so that the black soil could be mechanically transported. As a result, it was found that the problem in the mechanical transportation of black soil was that the black soil was mixed during the mechanical transportation and the viscosity increased.

That is, since the viscosity of the black soil increases, the black soil adheres to the blades and shafts of the mixer of the spraying machine of the transfer machine, making it impossible to spray the black soil. Furthermore, the black soil formed a dumpling-like lump and caused a blockage phenomenon in the hose of the spraying machine. Therefore, it is said that black soil, which is originally suitable for planting trees, etc., is not suitable for bedrock planting mainly by mechanical transportation, because the efficiency of transportation by spraying machines is lower than other soil materials. Was there. On the other hand, ordinary black soil has a high water content of 90% or more, and the applicant of the present application considered that the high water content of the black soil was the main cause of the viscosity causing the above-mentioned problems in mechanical transportation.

In view of the above problems, it is an object of the present invention to provide a soil material for black soil which has a low water content and is suitable for mechanical transportation by a spraying machine.

[0006]

[Means for Solving the Problems] In order to achieve the above-mentioned object, in a spraying machine transporting passenger earth material of a planting base material that is transported by a spraying machine to the rock surface for the purpose of vegetation, etc.,
A water absorbing material having at least water retention and a non-water retention viscosity reducing material were mixed in black soil. In addition, coconut husk chips were used as the water-absorbing material having the water-retaining property, and sand was used as the non-water-retaining viscosity reducing material. Furthermore, at least 1 of the above coconut shell chips
A volume ratio of 0 to 20%, sand of 40 to 50%, and black soil of 40 to 50% was mixed.

In the present invention, a water-absorbing material having a water-retaining property is mixed to reduce the high water content of the black soil due to the water-absorbing property to reduce the viscosity of the black soil, and to retain the water content as a plant-growing base material due to the water-retaining property. This is for the purpose of securing In addition, the reason why the non-water-retaining viscosity reducing material is mixed is to reduce the viscosity of the black clay having a high viscosity and to allow mechanical transportation by a spraying machine without holding excess water in the mixture. .

Furthermore, the use of coconut husk chips as a water absorbent material having a water-retaining property is because coconut husk chips have extremely high water absorption (200% or more of self volume) and are optimal for reducing the water content of black soil. This is because the water retention is high. Furthermore, since coconut husk chips are organic, they become organic fertilizers necessary for growing plants due to aging. Further, as the water absorbent having water retention property,
In addition to coconut chips, dried tree chips can also be used.

Further, the use of sand as the viscosity reducing material is because the sand can be generated at the construction site of rock vegetation or easily purchased locally, and the procurement cost is low, This is because it can be used as an extender. Further, since the sand itself is silky, the viscosity of the black soil having a high water content is effectively reduced, and the excess water is not retained in the mixture. Furthermore, masa soil or the like can be used as the viscosity reducing material in addition to sand. As the sand, wash sand, river sand, mountain sand and the like can be used.

The volume mixing ratio of coconut husk chips is 10 to 20.
%, It is insufficient to reduce the water content of black soil if it is less than 10%, and the water content of black soil is too low if it is more than 20%. The volume mixing ratio of sand is 40 to 5
The reason for setting 0% is that if it is less than 40%, the viscosity of the black soil cannot be sufficiently reduced, and if it is more than 50%, the amount of the black soil in the whole mixture is too small and it is insufficient as a plant growth base material. Is.

The mixing ratio of the black soil is set to 40% to 50%. When the mixing ratio of the black soil is less than 40%, the mixing amount of the black soil is too small to be sufficient as a base material for growing plants. This is because it is not suitable for machine transportation by a spraying machine. More preferably, 20% palm chips and 40 sand
% And black soil 40% by volume.

[0012]

EXAMPLE In this example, Mighty Husk (trade name) manufactured by Mitsubishi Materials was used as the coconut shell chips, and washed sand was used as the sand. It is also possible to use dry chips of trees other than coconut husk chips, and river sand, mountain sand or masa soil other than washing sand. 1 coconut husk chip above
Within the range of 0 to 20%, 40 to 50% of sand, and 40 to 50% of black soil in a volume mixing ratio, as shown in Table 1, three kinds of spraying machine transporting object soils having different mixing ratios according to the present invention. Make wood,
The machine was actually transferred by a spraying machine and the transfer condition was tested. The spraying machine used a mixer in the middle, and the spraying hose was made of rubber having a diameter of 45 mm and a length of 60 m, and at the time of spraying, the mixture having the above configuration was conveyed to a high place of about 20 m for spraying.

[0013]

[Table 1] In addition, the component mixing ratio in the table indicates the volume% of the mixture.

In the case of the black soil mixed guest soil material mixed in the ratio shown in No. 1 of Table 1, the machine was smoothly conveyed by the spraying machine. With the No. 2 mixing ratio, it was found that when the water content of the black soil was 90% or less, particularly good mechanical transportability by a spraying machine was exhibited. Also, with the mixing ratio of No. 3, there was sometimes a clogging phenomenon in the hose, but there was no problem in other transportability. Therefore, according to the present invention, it has been found that the black soil, which has not been suitable for mechanical transportation at all, can be sufficiently used as a soil material that can withstand mechanical transportation by a spraying machine by using a mixture of coconut husk chips and sand. It was

It is preferable that the coconut husk chips are mixed in the black soil in advance when the water content of the black soil is high, for example, 1 to 2 days before. Furthermore, the moisture content of black soil is 8
When the content is 0 to 90%, coconut husk chips may be mixed with black soil and conveyed during spraying conveyance.

[0016]

According to the present invention, since the black soil can be used as a soil material for machine transportation by a spraying machine, the black soil can be used for rock greening at a lower cost than before. Further, the present invention, since it is possible to use a black soil suitable for planting trees for bedrock greening at low cost, it is ideal for greening the cutting slope in mountain civil engineering where tree planting is particularly required, It is possible to fully meet the growing demand for landscape greening for environmental restoration in recent years. further,
Since it is possible to efficiently provide black soil suitable for planting at low cost, it is possible to broaden the selection of plants for planting in slope greening than in the past, and perform optimal greening for each environment. .

Claims (3)

[Claims] 1. A water-absorbing material having at least a water-retaining property in black soil in a spraying machine-conveying material for a planting base material that is conveyed to the rock surface by a spraying machine for the purpose of rock greening,
A non-water-retaining viscosity-reducing material mixed with a soil material for transporting a spraying machine. 2. The soil material for transporting a spraying machine according to claim 1, wherein the water-absorbing material having water-retaining property is coconut husk chips and the non-water-retaining viscosity reducing material is sand. 3. At least 10 to 20 coconut husk chips
%, Sand is 40 to 50%, and black soil is 40 to 50% in volume ratio.