JPH03133322A - Prevention of falling down of tree - Google Patents

Abstract

PURPOSE:To prevent trees from falling down without damaging growth of trees and requiring troublesome operation by embedding a reticulated member made of synthetic polymer in ground with planted trees. CONSTITUTION:A reticulated member 24 made of a synthetic polymer such as polypropylene is embedded in the ground 12 with planted trees 10. Consequently, roots of the trees are entangled with the reticulated member with growth of the trees and the trees can be prevented from falling down even if the ground is shallow, light-weight artificial ground.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for preventing trees planted on artificial ground from falling over.

(Conventional technology) The soil that is suitable for tree vegetation is one that does not have to be mechanically or physically fixed with foreign substances, but has the necessary and sufficient soil thickness depending on the type of tree, so that the soil is strong enough for the tree to stand on its own. Yes, and moisture and air.

It contains a suitable amount of fertilizer, etc.

By the way, it is extremely difficult to secure such ideal soil in urban areas these days, and when planting trees in areas with buildings, it is necessary to use artificial ground embankments in the crotches. is used.

However, such artificial ground embankments have a layer thickness of 2 weight, and thin and light embankment materials are used to prevent turbid water, etc., but these soil conditions are not ideal for plants. The current situation is that the soil environment is far from ideal.

Under these artificial ground conditions, there are restrictions on the types of trees that can be supported by the ground, so trees that are too tall to be supported by the ground alone should be reinforced with supports or underground anchors.
Although trees are prevented from falling over, this method of preventing trees from falling over has the following technical problems.

(Problems to be Solved by the Invention) In other words, in the method of preventing trees from falling by using supports, as the tree grows, it is necessary to replace the support each time the tree grows to a certain extent, and this work is not only complicated, but also If the tree is left in one place for a long time without repotting, the growth of the tree will be inhibited.

In addition, the method of preventing falls using underground anchors is ineffective unless relatively thick roots are tightened with the anchors in order to prevent falls;
Since plants absorb moisture and nutrients through their roots, there is a problem in that the absorption of what is necessary for tree growth is insufficient, and that growth is inhibited.

This invention was made in view of these conventional problems, and its purpose is to eliminate the tendency of trees to fall over without any troublesome work and without inhibiting their growth. The purpose is to provide a method of prevention.

(Means for Solving the Problems) In order to achieve the above object, the present invention is characterized in that a synthetic polymer mesh member is buried in the ground where trees are planted.

(Function) According to the tree fall prevention method having the above structure, a mesh member made of synthetic polymer is buried in the ground where the tree is planted, so that as the tree grows, the roots of the tree become This prevents the tree from falling, even on shallow and lightweight artificial ground.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the method for preventing trees from falling according to the present invention.

The tree fall prevention method shown in the figure is an example in which the present invention is applied when a tree 10 is planted on artificial ground constructed in a built-up area or the like.

The artificial ground 12 has a concrete bottom plate 14 and side walls 16.
A waterproof layer 18 is formed on the entire surface of the bottom plate 14 and on the lower side of the side wall 16.

Person 1 - Ground 12 is a drainage layer 20. It is composed of lightweight embankment material 22° mesh member 241 and topsoil 26, and is constructed in the following steps.

First, on the waterproof layer 18, a drainage layer 20 is provided, which is made by laminating gravel or the like to a predetermined thickness.

Next, a lightweight embankment material 22 is laminated to a predetermined thickness on the drainage layer 20, and mesh members 24, 24 are embedded in the lightweight embankment material 22 at predetermined intervals.

The mesh member 24 is made of a synthetic polymer such as polypropylene or polyethylene, and has a form such as a knitted fabric, a woven fabric, or a nonwoven fabric, and the size of the mesh is appropriately selected depending on the type of the tree 10. be done.

Then, topsoil 26 such as Kuroboku is piled up on the lightweight embankment material 22.

In the above construction process of the artificial ground 12, the trees 10 are planted at a predetermined depth of the lightweight embankment material 22 according to the size of their roots, height, etc.

The roots of the tree 10 planted in this way develop as the tree grows, and the developed roots grow while entwining with the mesh member 24 buried in layers in the lightweight embankment material 22.

When the roots of the tree 10 become entangled with the mesh member 24, the tree 10
is supported by a lightweight embankment material 22 and a mesh member 24 buried therein to compensate for its lack of strength, and the mesh member 2
Since the tree 4 has a large area, the tree 10 is sufficiently prevented from falling over.

In this case, even if the roots of the tree 10 become entangled in the mesh member 24, the growth of the roots will not be inhibited, which is advantageous for the tree 10, and the appearance will not be impaired.

Moreover, the above-mentioned fall prevention effect can be maintained for a long period of time without any modification as the tree 10 grows, which is extremely advantageous in terms of maintenance.

In addition, although the said Example demonstrated the case where this invention was applied to the artificial ground 12, implementation of this invention is not limited to this and can be applied also to a normal ground.

(Effects of the Invention) As described above in detail in the Examples, the method for preventing trees from falling according to the present invention is achieved by burying a synthetic polymer mesh member in the ground where the tree is planted. The roots of the tree become entangled with the mesh member, and are prevented from falling over by both the ground and the mesh member, and the growth of the tree roots is not inhibited by the entanglement with the mesh member, without damaging the appearance. Moreover, the fall prevention effect can be maintained for a long period of time without any troublesome maintenance.

Moreover, when the present invention is applied to artificial ground, the weight of the embankment material can be further reduced.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the method for preventing trees from falling according to the present invention. 10...Tree 12...Artificial ground 22...Lightweight embankment material 24...Mesh member

Claims (1)

[Claims] A method for preventing trees from falling over, characterized by burying a synthetic polymer mesh member in the ground where trees are planted.