JP2001030211A - Material for civil engineering utilizing tree material of felled wood or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively utilize and recycle a tree material of a felled wood, thinnings and a waste timber. SOLUTION: A bundle of sticks 1 utilizing a waste tree material are obtained by using a tree material of a felled wood, thinnings and a waste timber and a bar-like shape of their branch, a slender trunk or the like as main raw material, carbonizing a surface layer of the bar-like tree material 2, and then bundling a plurality of the carbonized materials 2 by band materials 3 to a combined material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reusing wood-generating materials such as felled timber, thinned wood, and waste wood. It relates to civil engineering materials for nature restoration such as barnwood.

[0002]

2. Description of the Related Art Amendments to the Waste Management and Public Cleansing Law (Waste Cleaning Law) in 1992 prohibit the burning of felled timber, and the enforcement of the 1991 Law on the Promotion of Use of Recyclable Resources. There is a growing need to promote the reuse of construction by-products.

Under these circumstances, various construction administrative agencies are promoting green recycling, and are promoting the use of chips for the purpose of composting as a method of effectively using tree-based wood as a pruning material for park green spaces and roads. Recently summarized "Guide to Composting Plant Generated Materials".

[0004] Regarding felled timber related to construction work other than park green spaces and roads, similar thinking and error are made regarding the recycling of felled timber, and the status of implementation in various construction scenes of dam construction work and residential land development work is reported. Have been. Techniques for using these felling materials include composting, use as chips as soil improvement materials and mulching materials as they are, carbonization and use as soil improvement materials, use of chip materials as filtration materials, and thinning materials as natural building materials Usage methods, such as using it, have been reported.

[0005]

However, there are the following problems in the case of using the technique of using the felled timber.

[0006] The felled timber and the like generated in the dam construction work and the residential land development work are generated suddenly, so it is not easy to deal with product processing and the like. Therefore, it is difficult to distribute while balancing supply and demand.

[0007] The cost when compared with existing products becomes a problem. In other words, recycled products tend to be considered to be low cost, but in reality waste materials are not of high quality due to the fact that many impurities are mixed, and the quality as raw materials differs at each generation site Therefore, a process for solving this is costly, and is rather expensive. For example, plywood made from cut timber has a lower bending strength than existing products made from raw materials from the South Seas, and as a measure to improve it, glass fiber is mixed in and reinforced to make it higher than existing products.

[0008] Even when there is a processing destination inside the site, there is a problem in securing a work space and a stock yard required for commercialization and adjusting supply timing.

[0009] As described above, it is difficult to commercialize using the utilization technology corresponding to the concept of treating only the current site or treating temporarily generated waste, for example, stably supplying pruned branches of street trees. It is necessary to consider the development processing technology that can be considered as a resource material that can be processed and that can be processed in a planned manner.

[0010] On the other hand, in recent years, a traditional river construction method of flood control using wood or stone has been reviewed from the viewpoint of environmental conservation and restoration of the natural environment. In this traditional river construction method, timbers such as stubble, band stalks, anti-suction materials, standing trees, parent trees, reaming bushes, and retaining piles are used, but natural materials such as natural trees are used for that purpose. Deforestation leads to resource depletion, which is inconsistent with nature conservation. In addition, in terms of durability, for example, civil engineering materials such as scents using raw wood such as willow branches have a problem that deterioration and corrosion progress over time.

Therefore, the main problem of the present invention is to effectively utilize and recycle the cut wood, the thinned wood, and the wood-generated wood of the discarded wood, which have been mostly discarded, and at the same time, provide a stable supply of the wood. An object of the present invention is to provide a civil engineering material using a tree-generating material such as a logging material having advantages such as durability and excellent hydrophilicity such as corrosion.

[0012]

A first aspect of the present invention for solving the above-mentioned problems is a tree-generated material made of cut wood, thinned wood, and discarded wood, and has a rod-like shape such as a branch portion or an elongated trunk portion. The material is used as a main raw material, the surface layer of the bar-shaped tree generating material is carbonized, and the carbonized bar-shaped tree generating materials are bundled with a band material to form a mixture.

In this case, by inserting a core material inside a plurality of bundled bar-shaped tree generating materials, microorganisms such as bacteria, fungi, protozoa, and post-smiling organisms attach and inhabit and naturally grow. An aging effect such as restoration can be expected, and the strength as a rod-shaped civil engineering material can be provided. As the core material, for example, a bar material such as a bar-shaped tree-generating material, a square bar, and a reinforcing bar before carbonization treatment can be used.

In the first aspect of the present invention, by using a tree-generated material, which is a natural material, as a recycled raw material, a material obtained by carbonizing the surface layer of the wood is used to prevent aging and corrosion (decomposition by microorganisms). In addition, when placed in water, the carbon dioxide exhibits a purifying function such that fine particles in the water are trapped in fine pores formed in the surface layer by carbonization.

[0015] Next, the second aspect of the present invention is to use the wood from the cut wood, the thinned wood and the discarded wood as the main raw materials, crush them into chips, and carbonize the surface layer of these chips, and carry out carbonization. The obtained chip material is sealed inside while being formed into a predetermined outer shape inside the net-like body. In the case of a dyke, etc., in order to secure a weight for preventing outflow, a heavy object such as a natural stone, a concrete lump, or an iron lump can be enclosed in the net.

These civil engineering materials include, for example, legal materials,
It can be used in combination as a civil engineering material for natural restoration such as sheet pile material, small piles, material for preventing suction, and material for banding.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings.

[First Embodiment] FIG. 1 is a perspective view of a rod-shaped civil engineering material 1 (rough robe) according to the present invention, and FIG. 2 is a sectional view thereof.

The scent 1 according to the present invention is made from wood, wood, thinned wood and wood-generated wood, which have been discarded so far.
After processing and quality (standard) adjustment, these bar-shaped tree-generating materials 2 are carbonized by a rotary incinerator or the like, and then the carbonized tree-generating materials 2 are made of metal or resin. Are banded at appropriate positions to form a mixture.

More specifically, a tree or tree formed by selecting a branch or an elongated trunk that can be used as the savory material from the group of felled timber, thinned timber, and waste wood, or processing waste wood into a bar-like material. The material 2 is used as a raw material, and the surface layer 2A of the bar-shaped tree material 2 is uniformly carbonized at a predetermined thickness by an incinerator such as a rotary incinerator that can incinerate the material to be incinerated while rotating it. FIG.
Is a view showing a cross section of each rod-shaped generating material 2, which is uniformly carbonized by a predetermined thickness in the circumferential direction. This carbonization prevents deterioration and corrosion (decomposition by microorganisms) after aging, and if it is installed in water if it is temporarily used as a method of diversion, diversion or protection, etc. ,
Due to carbonization, fine particles in the water are trapped in the fine pores formed in the surface layer, and the purification function is exhibited while preventing deterioration and corrosion.

At the time of the bundling process, as shown in FIG. 3, it is desirable to perform the bundling operation using a molding frame 4 having a U-shaped groove 4a and a predetermined length. As shown in FIG. 3A, the bands 3, 3,.
Are placed in the band 3, and the carbonized bar-like tree-generating materials 2, 2,... Are stacked in a horizontal state so that the outer shape is substantially circular. The diameter of the coarse lobe 1 is approximately 10 to 30 cm, and the length is approximately 1 to 3 m.

After the bar-shaped tree-generating materials 2, 2,... Are stacked, the bands 3 are bound to obtain the scent 1 of the present invention. In order to give the scent 1 an aging effect and strength as a rod-shaped civil engineering material, as shown in FIG. 4, a plurality of bundled rod-shaped tree generating materials 2, 2. It is preferable to insert a core material 5 made of a bar steel material such as a bar-shaped tree generating material, a square bar, and a reinforcing bar.

[Second Embodiment] FIG. 5 shows a chip material-enclosed civil material 6 according to the present invention (hereinafter also referred to as a log-shaped civil material).
FIG. 6 is a cross-sectional view of FIG.

The log-like civil engineering material 6 according to the present invention is obtained by using a wood-generating material, such as a logging material, a thinning material, and a discarded timber, which has been discarded until now. , A chipping process of about 30 to 50 mm is performed, the surface of these chips 7, 7... Is carbonized by a rotary incinerator or the like, and the carbonized chips 7, 7. ,
It is sealed inside a mesh body 8 such as a welded wire mesh or expanded metal while being formed into a predetermined outer shape.

In the inner sealing, when the mesh of the mesh is large, it is desirable to stretch a chip material outflow prevention sheet 9 such as a palm mat on the inner surface side of the mesh 8. In addition, in the case of a dyke, etc., in order to secure a weight for preventing outflow, the tip members 7, 7 are placed inside the mesh body 8.
It is preferable to enclose heavy objects such as natural stone, concrete lump, iron lump and the like.

At the time of molding, as shown in FIG. 7, the enclosing operation to the net 8 is performed by using the molding frame 4 having a U-shaped groove 4a and a predetermined length. As shown in FIG. 7 (A), if a net-like body 8 is laid along the U-shaped groove 4a and a chip material outflow prevention sheet 9 is laid on the upper side thereof, carbonizing treatment is performed inside the U-shaped groove 4a. Are filled. In addition, if necessary, heavy materials 20, 20,.

When the filling of the chips 7, 7,... Is completed, pressing is performed from the upper side of the U-shaped groove 4a to form a substantially circular cross section. , The both ends of the net 8 are put on the surface of the chip outflow prevention sheet 9, and the end net 10 is brought to the opening of the tip, and the end portions of the net 8 are connected to each other and the end surfaces thereof. The reticulated body 10 is stitched with a wire having the same strength as the reticulated body 8.

In this embodiment, the example of the log-shaped civil engineering material 6 has been described. However, the outer shape may be any shape such as a mat shape, a square shape in cross section, etc. other than the circular shape in cross section. In addition to the method using the molding frame 4, a chip material-enclosed civil engineering material may be directly produced on site. For example, as shown in FIG. 8, in the case of the method of framing, the mesh body 8 and the chip material outflow prevention sheet 9 are laid on the back side of the pile 11, and the carbonized chip material 7 is placed therein. It may be filled and the mesh body 8 may be sewn.

On the other hand, FIGS. 9 and 10 show examples in which the stubble 1 and the log-shaped civil engineering material 6 described above are applied to the stubble lining method or the reed fence method in the traditional river method. In the case of the scab method lining shown in FIG. 9, the stubble 1 according to the present invention can be used as the bedding scab, and the log 6 can be used as the band stalk 13.
Further, in the case of the continuous fence shown in FIG.
The chip material-enclosed civil engineering material 6 is used as a continuous wood 14, 14... Provided on the back side of the retaining pile 16 so as to be stacked vertically and horizontally, or as a filler on the back side of the continuous wood 14. Can be.

In the above, examples of use of the civil engineering materials for natural restoration according to the present invention have been described. According to the civil engineering materials for natural restoration, the effective use of the wood-based generated material, which has been mostly treated as waste, has been described.・ Along with being able to recycle, securing landscape, securing space for microorganisms and small animals,
Environmental protection and nature protection such as securing of water purification function and securing of water speed reduction function can be achieved. In addition, it is possible to stably supply civil materials of a certain standard without variation due to binding by a band and enclosing by a wire mesh.

[0031]

EXAMPLE In this example, the results of verification performed on the effect of preventing deterioration and corrosion when carbonizing the surface layer of a tree-based generated material will be described.

The aroma 1 and the chip-filled civil engineering material 6
And non-carbonized aroma and chip-filled civil engineering materials were cast into a processed fertilizer product (bark fertilizer) obtained by accelerating the corrosion of bark, and the degree of corrosion and deterioration after being left outdoors for a certain period of time was confirmed. .

As a result, all of the carbonized products that had not been subjected to the carbonization treatment had been corroded by leaving them for three months after the rainy season until plant fibers remained on the surface. In particular,
In the case of tipping material or scented material having a diameter of about 1 cm, the corrosion progressed completely to the core, and when rubbed with bare hands, it collapsed without stopping the prototype.

On the other hand, in the case of the coarse lobe 1 and the chip material-enclosed civil engineering material 6 according to the present invention, some of them contained a little water and had low flexural strength, but there was no corrosion. In addition, about the fall of bending strength,
Since the chip material-enclosed civil engineering material 6 is sealed in a wire mesh or bundled with a band, the chip material 6 has sufficient strength as a whole, and does not seem to cause a practical problem.

As described above in detail, according to the present invention, it is possible to effectively use and recycle wood, thinned wood, and discarded wood that have been mostly discarded. At the same time, it is possible to provide a stable supply, and also has advantages such as excellent durability such as deterioration and corrosion and excellent hydrophilicity.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rod-shaped civil engineering material 1 (rough robe) according to the present invention.

FIG. 2 is a sectional view thereof.

FIG. 3 is a view showing a manufacturing procedure thereof.

FIG. 4 is a sectional view of the coarse lobe 1 into which a core material 5 is inserted.

FIG. 5 is a perspective view of a chip material-enclosed civil engineering material 6 (log-shaped civil engineering material) according to the present invention.

FIG. 6 is a sectional view thereof.

FIG. 7 is a view showing the manufacturing procedure.

FIG. 8 is a view showing an example of the on-site construction of a chip material-enclosed civil engineering material 6;

FIG. 9 is a diagram illustrating an example of application to a scab method lining.

FIG. 10 is a diagram illustrating an example of application to a reed fence.

[Explanation of symbols]

1 ... rod-shaped civil engineering materials (slaves), 2 ... rod-shaped tree-generated materials, 3 ...
Band: 4 molding frame, 5: core material, 6: chip material enclosing civil engineering material (log), 7: chip material, 8: net-like body, 9: chip material outflow prevention sheet

Claims (6)

[Claims] 1. A tree-generating material made of cut wood, thinned wood, and discarded wood, and a rod-shaped material such as a branch or a long trunk is used as a main raw material, and a surface layer of the bar-shaped tree-generating material is carbonized. A material for civil engineering using a tree-generating material such as a logging material, wherein the carbonized bar-shaped tree-generating material is bundled with a band material to form a mixture. 2. A material for civil engineering utilizing a tree-generating material such as a felled timber according to claim 1, wherein a core material is inserted inside a plurality of bar-shaped tree-generating materials bundled. 3. The bar-shaped tree-generating material before the carbonization treatment,
A civil engineering material using a tree-generated material such as a felled timber according to claim 2, which is a square bar or a steel bar. 4. A main material is a cut wood, a thinned wood, and a wood-generating material of waste wood. After crushing these into chips, the surface layer of these chips is carbonized, and the carbonized chips are reticulated. A civil engineering material that uses a tree-generating material, such as a felled timber, characterized in that it is sealed inside while being formed into a predetermined outer shape inside the interior. 5. A material for civil engineering utilizing a tree-generating material such as a felled timber according to claim 4, wherein a chip material outflow prevention sheet is stretched on the inner surface side of the net. 6. A civil engineering structure using a wood-generating material such as a felled timber according to claim 4, wherein a heavy material such as a natural stone, a concrete lump, or an iron lump is enclosed inside the net-like body. Materials.