JP2002227210A - Slope protection by cutting material and greening method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the slope protection by a cutting material and a greening method capable of using a fibrously chipped matter formed of the cutting material cut at a land formation site and being easily executed by anybody. SOLUTION: The slope protection by the cutting material and the greening method is constituted of a process setting a chip receiver 2 on a land formation slope 1, a process breaking a cutting material chip into a fibrous chip, a process accumulating the broken fibrous chip, a process forming a fibrous chip layer 3 by spraying the fibrous chip on the land formation slope and a process spraying a seed/fertilizer layer 4 on the upper surface of the fibrous chip layer 3 or at least part of the lower surface thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the technical field of slope protection and revegetation for preventing the collapse of cut and embankment slopes in the construction of roads, railways, residential lands, golf courses, and other lands. Belongs to.

[0002]

2. Description of the Related Art Conventionally, in a construction work, concrete, steel, and plastic law frames have been constructed in order to prevent collapse of a slope. By dividing the slope into fine grids, the lawn frame serves to prevent the vegetation base from collapsing significantly, and becomes unnecessary once the vegetation has taken root and the base has stabilized. In addition, on a slope with no or thin greening base, greening is performed by spraying a soil or a thick base material to protect the slope and green.

[0003]

However, concrete frames are relatively inexpensive, but are heavy and heavy, so construction is difficult. Steel and plastic frames are easy to construct, but cost is low. It has the problem of being expensive. Furthermore, with the recent rise in environmental awareness, concrete, plastic, and the like have become unsuitable for landscapes and ecosystems. In addition, methods such as spraying soil and thick base material have a problem that the cost is high, and especially in winter, mulching for protecting seeds (neutralization).
And other measures must be taken.

On the other hand, at the construction site, open burning is legally prohibited, and it is currently difficult to treat the cut down trees. However, composting is not used much because it is time- and space-constrained and time-consuming, and the required amount of mulching and sidewalk pavement materials is low. Many. In addition, there is a construction method that uses old-fashioned tree branches and stakes to protect the slope, but this method is labor-intensive and is rarely implemented due to a shortage of engineers.

The present invention solves the above-mentioned problems and problems of the prior art, and it is possible to use a material obtained by cutting wood cut at a construction site into chips into a fiber shape, and to easily perform the work for anyone. The purpose is to provide slope protection and tree planting methods by using felled timber.

[0006]

For this purpose, the method for protecting a slope by cutting wood and the greening method according to claim 1 of the present invention comprises a step of installing a chip receiver on a cutting slope and a step of cutting the cutting wood chips into fibrous chips. Crushing the fibrous chips, depositing the crushed fibrous chips, spraying the fibrous chips on a forming surface to form a fibrous chip layer, and at least one of an upper surface and a lower surface of the fibrous chip layer And a step of spraying a seed / fertilizer layer on the chip. In the invention according to claim 2, the chip receiver according to claim 1 is configured such that a plurality of receiving members arranged horizontally at intervals with a rope. It is characterized by being connected.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the slope protection and greening method using felled timber according to the present invention.
(A) is a cross-sectional view after construction, FIG. 1 (B) is a perspective view of the chip receiver in FIG. 1 (A), and FIG. 1 (C) is a perspective view in which a fibrous chip layer is constructed.

First, the chip receiver 2 is set on the forming surface 1. The chip receiver 2 is formed by connecting a large number of receiving members 2a horizontally arranged at intervals with a rope 2b, and the rope 2b is fixed to the formation surface 1 by an anchor pin 5. The chip receiver 2 is intended to prevent the displacement of the felled wood chips and to supply fertilizer for a long time. The shape of the receiving member 2a is arbitrary, but it is preferable to use a biodegradable material as the material.

Next, fibrous chips obtained by depositing logging chips crushed into fibrous forms having a length of 15 cm and a diameter of 1 cm or less for three months or more to remove greening harmful substances (antibacterial components represented by hinokitiol, etc.) of the trees are removed. Layer 3 is 3-5 cm thick
Spread evenly to the slope 1 to the extent or spray with air.

Next, seeds and fertilizer are added to the fibrous chip layer 3.
And the seed / fertilizer layer 4 is constructed. Seed amount is 30-40 g / m ² , fertilizer amount is 300-400 g
/ M ² is preferred. Note that the seed / fertilizer layer 4 may be sprayed below or above or below the fibrous chip layer 3. In the case of a steep slope of 10% or more, the outflow is prevented by setting a greening net on the seed / fertilizer layer 4.

[0011]

As is apparent from the above description, according to the present invention, anyone who has cut down a logging material cut at a construction site into chips can be easily constructed. By utilizing local resources, it is possible to reduce costs such as costs for greening base materials such as guest soil and costs for treating industrial waste.

Further, the fibrous chip layer serves as a cushion, thereby preventing erosion of the slope surface,
The fibrous chip layer and the chip receiver play a role of preventing the loss and drying of the green seeds, and can perform good greening. Further, the chips are corroded and returned to the soil when the vegetation is rooted and the base is stabilized, so that it is possible to provide a greening method that is environmentally friendly and that matches the landscape and is ecologically friendly.

If the fibrous chip layer is applied on the seed spraying layer, the fibrous chip layer plays a role of mulching, so that it can be applied even in winter.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows one embodiment of the slope protection and greening method using felled timber according to the present invention, wherein FIG. 1 (A) is a cross-sectional view after construction, and FIG. Perspective view of FIG. 1
(C) is a perspective view in which a fibrous chip layer was applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Creation surface 2 ... Chip receiver 3 ... Fibrous chip layer 4 ... Seed / fertilizer layer

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kenji Nakamura 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation Inside (72) Inventor Mamoru Nasu 1-2-3 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Chiaki Niwa 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Katsumi Naito 2-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation ( 72) Inventor Hidehiro Ueno 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Masaaki Hara 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Fujimi Takizawa 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Masao Ota 2-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation F-term (reference) 2B022 AB02 BA01 BA14 BA23 BB02 CA04 2B054 AA17 BA01 BB05 2D044 DA33

Claims (2)

[Claims] 1. A step of installing a chip receiver on a creation method surface,
A step of crushing the felled wood chips into fibrous chips, a step of depositing the crushed fibrous chips, a step of spraying the fibrous chips on a forming surface to form a fibrous chip layer, Spraying a seed / fertilizer layer on at least one of the upper surface or the lower surface, and protecting the slope with logging materials and revegetation. 2. The slope protection and tree planting according to claim 1, wherein the chip receiver is formed by connecting a large number of horizontally arranged receiving members with ropes. Construction method.