JP2002138443A - Building member for civil engineering structure and manufacturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make easier to install a strut member and more definitely maintain the attitude of a wooden assembled body during the use. SOLUTION: An anchor 3 is equipped as a strut member to a #-shaped wooden assembled body 2. This anchor 3 is equipped with a shaft-shaped portion 7 with its one end portion retained by the wooden assembled body 2 and the other end side extended toward the rear surface side, and an extended portion provided in an extended state outwardly in radial direction beyond the shaft- shaped portion 7 at the other end portion of the shaft-shaped portion 7, and its extended portion comprises a curl portion 8 and a washer 9 restricted by the curl portion 8. By using this anchor, lightness and a sufficient resistance against the movement can be secured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction material for civil engineering structures used for construction of civil engineering structures such as seawalls, retaining walls, and the like, and a method of manufacturing the construction material for civil engineering structures.

[0002]

2. Description of the Related Art Conventionally, in the construction of civil engineering structures such as seawalls and retaining walls, a wood block method is sometimes used. According to this wood block construction method, as a building material for civil engineering construction, a wooden assembly formed into a well shape by stacking two vertical trees and two crosspieces is used to extend a retaining material to the back side with the two crosspieces. Prepare the thing sandwiched as such, and sequentially stack the wooden assembly of the building material for civil engineering construction, filling the back side of the wooden assembly with backfill material,
The posture of the wooden assembly is to be maintained by the frictional force between the backing material and the backing material. Thereby, each wooden assembly functions as a protective wall or a retaining wall while harmonizing with the surrounding natural scenery.

[0003]

However, in the construction material for civil engineering structures, a relatively heavy log is used as a substitute, and one end of the log is separated by upper and lower crosspieces in a wooden assembly. It must be held in a holding state, and the mounting work is not easy.

In addition, the posture of the wooden assembly is mainly maintained only by the frictional force between the logs as backing material and the backfill material, and there is a demand for maintaining the posture of the wooden assembly more reliably. is there.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its technical problem is to make it possible to easily attach a stay, and to make the posture of a wooden assembly in use more difficult. It is an object of the present invention to provide a construction material for civil engineering structures and a method for manufacturing the construction material for civil engineering structures, which can be reliably maintained.

[0006]

According to the present invention (the invention of claim 1), in order to achieve the above technical object, at least two or more vertical bars are arranged in parallel with at least two or more vertical bars. A building material for civil engineering construction having a wooden assembly in which the crosspieces are stacked while maintaining a parallel state, and wherein a stay member is held by the wooden assembly so as to extend to the back side of the wooden assembly. An anchor is used as the staying member, and the anchor includes an axial portion having one end held by the wooden assembly and the other end extending toward the back surface of the wooden assembly; An extension portion provided on the end side in a state of being extended radially outward from the shaft portion. Preferred embodiments of the first aspect are as described in the second to eighth aspects.

In order to achieve the above technical object, according to the present invention (the ninth aspect of the present invention), a shaft having at least one end linear and a second end provided on the other end of the shaft. And an expansion portion provided in a state expanded more radially outward than the shaft portion. An anchor having an expansion portion is provided, and at least two or more crosspieces are provided for at least two or more vertical trees arranged in parallel. For the wooden assembly to be configured to be stacked while maintaining the parallel state, a through hole is formed so that the front side and the back side penetrate, and then the one end of the shaft portion is penetrated through the through hole. In addition, a retaining portion is provided at one end of the shaft portion outside the through hole to provide a method for manufacturing a building material for civil engineering construction. A preferred aspect of the eighth aspect is as described in the tenth aspect.

[0008]

According to the first aspect of the present invention, since a lightweight anchor having only a shaft-shaped portion and an expanded portion is used as a holding member instead of a heavy material, the anchor is made of a wooden group. Even in the case of being mounted in a three-dimensional cantilever state, it can be easily mounted on the wooden assembly.

On the other hand, by engaging the extended portion of the anchor with the backing material to be filled on the back side of the wooden assembly, it is possible to sufficiently secure the movement resistance of the wooden assembly. Therefore, even when a lightweight anchor is used, the posture of the wooden assembly during use can be more reliably maintained.

According to the invention described in claim 2, a through hole is formed in the wooden assembly so that the front side and the back side penetrate, and one end of the shaft portion is inserted into the through hole. At the same time, a stopper is provided at one end of the shaft-like portion on the front side of the wooden assembly. Therefore, as a work of attaching the anchor to the wooden assembly, one end of the lightweight anchor (shaft-like After passing one end of the part) through the through hole,
It is only necessary to provide a stopper at the one end, so that the anchor can be easily attached to the wooden assembly.

Further, in this case, the through-hole is easily formed by utilizing the fact that the assembly is made of wood, and only one end of the shaft-like portion is inserted through the through-hole. By engaging the shaft and the inner wall of the through hole, the anchor can be temporarily held with respect to the wooden assembly. For this reason, the operation of providing the retaining portion thereafter is simplified, and from this viewpoint, the anchor can be easily attached to the wooden assembly.

According to the third aspect of the present invention, since a plurality of anchors are provided, the plurality of anchors can be appropriately arranged to further secure the movement resistance of the wooden assembly. Can be maintained more reliably.

According to the fourth aspect of the present invention, since one end of the shaft portion of each anchor penetrates the overlapping portion between the vertical bar and the horizontal bar in the wooden assembly, the vertical bar and the horizontal bar are provided. Can be held using one end of the shaft portion. For this reason, a special stopper for stopping the vertical tree and the horizontal tree can be omitted, and the number of parts can be reduced.

According to the fifth aspect of the present invention, a stopper is provided at one end of the shaft-like portion on the back side of the wooden assembly to cooperate with the retaining portion to clamp the vertical and horizontal trees. Therefore, using the stopper and the stopper,
The vertical tree and the horizontal tree can always be maintained in a stable assembled state, and the handleability can be improved.

According to the sixth aspect of the present invention, since the auxiliary tree is attached to the vertical tree and the wooden assembly is set so as to take a stable posture in the mounted state, the worker can use his hand. Even if you do not support it with a wooden assembly, it will not fall,
The work of stacking the wooden assemblies can be improved.

According to the seventh aspect of the present invention, the shaft portion is inserted into the protection tube, and the protection tube is sandwiched between the wooden assembly and the extension portion. At this time, the shaft portion of the anchor can be protected from the backing material, and the shaft portion can be protected from corrosion for a long period of time. In addition, the insertion of one end of the shaft portion into the through hole of the wooden assembly is restricted at a predetermined position by the protection tube supported by the expansion portion, and the wooden portion is formed between the retaining portion and the end surface of the protection tube. The assembly can be clamped. For this reason, the holding of the wooden assembly to one end of the anchor can be ensured.

According to the invention described in claim 8, a screw portion is formed at one end of the shaft portion, and a nut is screwed to the screw portion as a retaining portion. Thus, a retaining portion can be formed.

According to the ninth aspect of the present invention, as a work of attaching the anchor to the wooden assembly, one end of the lightweight anchor (one end of the shaft portion) is passed through the through hole, and then the one end of the lightweight anchor is inserted. The anchors can be easily attached to the wooden assembly.

Furthermore, in this case, the through hole is simply formed by utilizing the wooden structure of the assembly, and one end of the shaft portion is simply inserted through the through hole. By engaging the shaft and the inner wall of the through hole, the anchor can be temporarily held with respect to the wooden assembly. For this reason, the work of providing the retaining portion thereafter can be simplified.

According to the tenth aspect of the present invention, since the through hole is formed in the overlapping portion of the vertical and horizontal trees in the wooden assembly, one end of the shaft portion is passed through the through hole. Accordingly, the vertical tree and the horizontal tree can be held by using one end of the shaft-shaped portion. For this reason, a special stopper for stopping the vertical tree and the horizontal tree can be omitted, and the number of parts can be reduced.

[0021]

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

FIGS. 1 to 5 show a first embodiment. In the first embodiment, as shown in FIG. 1 and FIG. 2, the contents in which a retaining wall 15 as a civil engineering structure is constructed using a large number of civil engineering building materials 1 are shown.

As shown in FIG. 3, the construction material 1 for a civil engineering structure includes a wooden assembly 2 and an anchor 3.
The wooden assembly 2 is composed of two vertical trees 20 and two horizontal trees 2
1, two vertical trees 20 project upward and downward outward from two horizontal trees 21 and
The horizontal bars 21 protrude outward from the left and right sides of the two vertical trees 20. The two crosspieces 21 are arranged forward of the two vertical crosspieces 20, and the upper crosspiece 21 has a flat surface formed over the entire upper surface thereof, and the lower crosspiece 2
1 has a flat surface formed on the lower surface over the entire length.

The anchor 3 is, as shown in FIGS.
It is connected to the wooden assembly 2. In this anchor 3,
As shown in FIGS. 4 and 5, in order to prevent the wooden assembly 2 from moving (sliding down) during use (in a stacked state), a shaft-like portion 7 is provided.
A curl portion 8 and a washer 9 as a stopper panel are provided. In the present embodiment, the curl portion 8 and the washer 9 constitute an expansion portion. Shaft 7 and curl 8
Are integrally formed using a straight material, and the straight material is selected in consideration of strength, corrosion, workability, and the like. For this reason, as the straight material, an iron wire, a reinforcing bar, a pipe, or the like is preferable, and those obtained by subjecting them to a plating treatment such as zinc aluminum alloy plating are more preferable.

As shown in FIG. 4, the shaft portion 7 extends in a relatively long state (for example, 0.5 to 1.5 m).
A thread 3a is formed at one end (left end in FIG. 4) of the anchor 3, and a stopper 3b is provided on the axially inner side of the shaft 7 than the thread 3a. Is formed.

In this embodiment, as shown in FIG. 4, the shaft-like portion 7 is used for assembling the wooden assembly 2. That is, the bar 20 in the wooden assembly 2
In the overlapping portion (overlapping portion at the four corners) 22 of the vertical bar 20 and the horizontal bar 21, through holes 23 and 24 are formed, and the through hole 23 of the vertical bar 20 and the through hole 24 of the horizontal bar 21. One end of the shaft portion 7 is penetrated while the washer 25 is positioned on the stopper 3b side. The washer 26 is passed through the threaded portion 3a of the penetrated shaft portion 7 and then the nut 30 (unfastened). Stop portion) is screwed. Thus, the vertical tree 20 and the horizontal tree 21 are sandwiched between the nut 30 and the like and the stopper 3b and the like, so that a stable assembled state is obtained. In this case, a recess 27 is formed in the crosspiece 21, and the nut 30, the washer 26, and the like are housed in the recess 27, and the nut 30, the washer 26, and the like are to be protected from rolling stones and the like. .

As shown in FIGS. 4 and 5, the curl portion 8
The other end of the shaft portion 7 of the anchor 3 is formed by being wound in a curl shape. A circular hole having an inner diameter of about 30 mm is formed in the curl portion 8, and after the formation of the hole, the other end portion (curved end portion) of the anchor 3 is welded as a winding portion 11. Instead, it is simply wound around the shaft portion 7. In this case, the curled portion 8 is formed so as to bulge to both sides in a symmetrical shape with respect to the axis of the shaft portion 7, and the winding portion 11 is attached to the curving start portion 12 of the curled portion 8 on the outer peripheral side thereof. Are arranged to engage with each other. Particularly, in the present embodiment, the winding portion 11 is configured to simply wind in a substantially U-shape so as to sandwich the shaft portion 7 in cooperation with the bending end portion 13 from the viewpoint of ease of processing and the like, As long as the winding portion 11 is not engaged with the bending start portion 12 of the curl portion 8, the winding portion 11 is guided by the shaft portion 7 and can move in the axial direction of the shaft portion 7. For this reason, when an external force acts on the curl portion 8 on the curl portion 8, the curl portion 11 always engages with the curving start portion 12 of the curl portion 8 based on the guide effect between the curl portion 8 and the shaft portion 7. The movement is regulated by the contact (contact) (see FIGS. 4 and 5). Of course, from the viewpoint of enhancing the effect of guiding and holding the shaft portion 7 and the winding portion 11, the winding portion 11 may be wound around the shaft portion 7 multiple times (so-called coil shape).

The washer 9 is held movably on the shaft 7 with its plate surface oriented in the direction in which the shaft 7 extends. The washer 9 has a square shape with a side of about 150 mm and a thickness of about 6 mm, and an insertion hole 14 is formed at the center thereof. The shaft portion 7 is inserted into the insertion hole 14 of the washer 9, and the washer 9 can move on the shaft portion 7, while the movement of the washer 9 is regulated by the curl portion 8. In this case, when an external force acts on the curled portion 8 via the washer 9, the winding portion 11 is engaged with the curving start portion 12 of the curled portion 8, and the movement is regulated. The curl portion 8 cannot be moved unless the ring having a size corresponding to the portion 8 is crushed and moved, and the curl portion 8 can effectively serve as a stopper for the washer 9 even if the shaft portion 7 is not welded. Will work. In this case, it goes without saying that a synthetic resin plate may be used instead of the washer 9 as the stopper panel.

Next, the method of using the building material for civil engineering structures (method of constructing a retaining wall) and the retaining wall constructed by using the method will be described.

In the construction of the retaining wall 15, a large number of construction materials 1 for civil engineering structures are carried to each construction position by a crane or the like via a carrier (not shown).

At this time, since the anchor 3 is relatively long, it is easy to bundle a large number of building materials 1 for civil engineering structures, and the holes in the curl portion 8 can be used as hook holes. Accordingly, handling and transport can be facilitated.

When a large number of civil engineering construction materials 1 are conveyed to the construction position, the civil engineering construction materials 1, as shown in FIG. 1 and FIG. 2 (in the horizontal direction in FIG. 2), and are sequentially stacked with a required gradient. At this time, the lower rungs 21 of the wooden assembly 2 which is relatively upper are to be mounted on both upper rungs 21 of the adjacent wooden assemblies 2 which are relatively lower. Further, each shaft-like portion 7 of each structural material 1 for civil engineering structures is bent on the back surface side of the wooden assembly 2 with the inclination gradient of the wooden assembly 2, and is extended rearward while maintaining a substantially horizontal state. I have.

When building materials 1 for civil engineering structures are piled up, on the back side of the wooden assembly 2, crushed stones, rubble stones and on-site generated materials are placed on the anchors 3 and washers 9 at the uppermost stage at that time. The backing material 16 is piled up to the height of the wooden assembly 2 to form a mounting surface. As a result, a stable mounting surface of the next civil engineering construction material 1 to be piled up is secured, the stacking work of the civil engineering construction material 1 is facilitated, and the shaft 7 and the backing material 16 are stacked. And the frictional force with the backing material 1616 in engagement with the backing material 1616, the movement resistance to the front side due to the engagement of the plate surface of the washer 9 is sufficiently obtained, and the wooden assembly 2 is prevented from sliding down (moving). Will be.

In particular, in the above construction, the wooden assembly 2
From the viewpoint of further preventing the sliding of the anchor 3 and the washer 9.
When the backing material 16 is piled on the backing material 1, pressure (rolling) is applied from the outside (upper part) by a roller or the like to thereby form the backing material 1.
6, the backing material 16, the anchor 3 and the washer 9
It is preferable to increase the frictional force (including the movement resistance of the washer 9) with respect to.

As a result of such construction, as shown in FIG. 1, the wooden assembly 2 of the building material 1 for each civil engineering structure forms a retaining wall 15 which forms a protective wall. With the wooden assembly 2 of the building material for each civil construction, it will be harmonized with the surrounding natural scenery.

FIG. 6 shows a second embodiment, FIG. 7 shows a third embodiment, and FIG. 8 shows a fourth embodiment. In each of the embodiments, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

The second embodiment shown in FIG. 6 shows a modification of the wooden assembly 2 according to the first embodiment. In this embodiment, the bar 20 in the wooden assembly 2
Are three, and the three vertical trees 20 support the two horizontal trees 21. In this case, the anchor 3 is not attached to the vertical tree 20 located at the center of the three vertical trees 20, and the vertical tree 20 and the horizontal tree 21 are fixed via stoppers. Thereby, the strength of each wooden assembly 2 is reinforced.

A third embodiment shown in FIG. 7 shows a modification of the wooden assembly 2 according to the first embodiment. In this embodiment, each vertical tree 20 of the wooden assembly 2 is inclined, and a rear tree 28 and a lower tree 29 are attached as auxiliary trees to each vertical tree 20 in the inclined state, and each vertical tree 20 is supported. The wooden assembly 2 is to be placed on the wooden assembly 2 simply by placing the wooden assembly 2 without any support by a worker. For this reason, in combination with the lightweight anchor 3, the work of stacking the building materials 1 for civil engineering structures can be further simplified.

In the fourth embodiment shown in FIG. 8, the shaft 7 is fitted in the protection tube 31. This protection tube 31
Has an inner diameter of about 8 mm and an outer diameter of about 9 mm, and the diameter is larger than each diameter (about 6 mm) of the shaft portion 7 and the through holes 23 and 24. The length of the protection tube 31 in the axial direction is larger than the length of the shaft portion 7, and the length of the vertical tree 20 and the horizontal tree 21
And one end of the shaft-like portion 7 can protrude from the protective tube 31.
When one end is inserted through the vertical tree 20 and the crosspiece 21 and the nut 31 is screwed into the threaded portion 3a at the one end, the protection tube 31 includes the wooden assembly 2, the washer 25, the washer 9, the curl part. 9 is to be pinched.
Therefore, the protection tube 31 not only protects the shaft portion 7 of the anchor 3 from the backing material 16 when the backing material 16 is piled up, but also protects the shaft portion 7 from corrosion over a long period of time. Instead of the stopper 3a, the protective tube 31 can be used for assembling and holding the tree 20 and the crosspiece 21.

Of course, in this case, it is preferable that not only the shaft portion 7 but also the protection tube 31 be subjected to a plating treatment such as a zinc aluminum alloy plating treatment.

It is to be noted that the object of the present invention is not limited to what is explicitly specified, but also implicitly includes providing what substantially corresponds to what is described as preferred or advantageous.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a structure of a retaining wall according to a first embodiment.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a perspective view showing a construction material for civil engineering structures according to the first embodiment.

FIG. 4 is an explanatory view illustrating attachment of the wooden assembly and the anchor.

FIG. 5 is a right side view of FIG. 4;

FIG. 6 is a perspective view showing a construction material for civil engineering structures according to a second embodiment.

FIG. 7 is a perspective view showing a construction material for civil engineering structures according to a third embodiment.

FIG. 8 is a perspective view showing a construction material for civil engineering structures according to a fourth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Construction material for civil engineering structures 2 Wooden assembly 3 Anchor 3a Screw part 3b Stopper 7 Shaft part 8 Curl part 9 Washer 20 Vertical tree 21 Crosspiece 22 Overlapping part 23 Through-hole 24 Through-hole 28 Backwood 29 Underwood 30 Nut 31 Protection tube

Claims (10)

[Claims] 1. A wooden assembly having at least two or more crosspieces superimposed on at least two or more vertical trees arranged in parallel while maintaining a parallel state, and a stay member is attached to the wooden assembly. In the construction material for civil engineering structures, which is held so as to extend to the back side of the wooden assembly, an anchor is used as the holding member, and the anchor has one end held by the wooden assembly and the other end. A shaft portion having a side extending toward the back side of the wooden assembly;
An extension portion provided at the other end of the shaft portion in a state of being expanded radially outward from the shaft portion, a building material for civil engineering construction, characterized in that: 2. The wooden assembly according to claim 1, wherein a through-hole is formed in the wooden assembly so that a front side and a back side penetrate, and one end of the shaft-like portion is inserted into the through-hole. A structural material for civil engineering construction, wherein a retaining portion is provided at one end of the shaft portion on the front side of the wooden assembly. 3. The construction material according to claim 2, wherein a plurality of the anchors are provided. 4. The civil engineering structure according to claim 3, wherein one end of the shaft portion of each of the anchors penetrates an overlapping portion of the vertical tree and the horizontal bar in the wooden assembly. For building materials. 5. The stopper according to claim 4, wherein one end of the shaft-like portion is provided on a rear side of the wooden assembly with a stopper that cooperates with the retaining portion to clamp the vertical tree and the horizontal tree. Construction materials for civil engineering structures. 6. The tree according to claim 1, wherein an auxiliary tree is attached to the vertical tree, and the wooden assembly is set to take a stable posture in a mounted state.
A building material for civil engineering structures, characterized in that: 7. The construction for civil engineering construction according to claim 2, wherein the shaft-like portion is inserted into a protection tube, and the protection tube is sandwiched between the wooden assembly and the extension portion. Wood. 8. The shaft according to claim 2, wherein a threaded portion is formed at one end of the shaft portion, and a nut is screwed to the threaded portion as the retaining portion. Construction materials for civil engineering structures. 9. An axial portion having at least one end portion formed in a straight line, and an extended portion provided at the other end side of the axial portion so as to extend radially outward from the axial portion. An anchor comprising: a wooden assembly to be constructed by stacking at least two or more crossbars while maintaining a parallel state with at least two or more vertical bars arranged in parallel; A through hole is formed so as to penetrate with the back side. Thereafter, one end of the shaft portion is made to pass through the through hole, and a stopper portion is provided at one end of the shaft portion outside the through hole. And a method for producing a building material for civil engineering structures. 10. The method according to claim 9, wherein the through hole is formed at an overlapping portion of a vertical tree and a horizontal tree in the wooden assembly.