JP3449241B2 - How to reinforce the soil block surface - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for relocating and preserving archaeological sites, remains and the like discovered during earthwork.

[0002]

2. Description of the Related Art Ruins such as tombs, irrigation channels, levee bodies, dwellings, etc., built up by the humans of our ancestors over the years, from the so-called ancient times of the Jomon and Yayoi eras to the modern period from the earlier Paleolithic era, Remains are not only valuable cultural assets in modern times such as archeology and anthropology, but also retain the original shape and be preserved and utilized for the future, and should be open to many people. It is a thing.

[0003] When these archaeological sites or remains are displayed and stored, conventionally, the surface of the archaeological sites or remains is sprayed with urethane resin or the like to carry out a stripping method to collect only the surface layer, or simply to make a mold of the ruins surface. You can either make a replica and display the resulting imitation, or keep the ruins and remains as they are by enclosing them with a glass plate and protecting them, and then constructing a building around it. In many cases, a method such as setting up an archeological museum was used.

[0004]

However, in the conventional preservation and exhibition method as described above, for example, in the method of performing the peeling method and making a replica by making a replica, a so-called model of a ruin or remains is displayed. It was only created, and it is easy to lack the natural presence and power that the ruins and remains originally had.

In addition, in the preservation and display method of surrounding and protecting the ruins and the remains themselves and constructing a building, the remains and remains that are earth structures unless specially meticulous temperature and humidity management is performed to preserve them. There is a risk that shrinkage and cracks will occur due to the rapid drying of the building, and preservation exhibitions can only be performed at the original site of the ruins and the remains of the structure, making it a means of transportation such as a remote location far from the city. If there are archaeological sites or remains in scarce areas, the meaning of building an exhibition hall will be diminished and the exhibition itself will be difficult to implement.

[0006] Therefore, the present applicant pays attention to the above-mentioned problems, and cuts out earth structures such as archaeological sites and remains as a plurality of earth blocks in a block shape, and moves and cuts out the earth blocks. After carrying out reinforcement such as resin liquid impregnation for storage, construct a restored body by stacking on a pedestal with multistage shelves according to the prototype of the soil construction before cutting out Invented and solved the conventional problem.

However, when the soil block impregnated with the resin liquid is placed on the shelf of the frame by directly lifting it with a heavy machine or the like, for example, if a plurality of soil blocks are handled at the same time, the soil block can be used. There is a possibility that they may come into contact with each other and damage each other, and that the soil block may collide with the rack of the gantry itself, resulting in damage to the soil block.

In addition, a fixing anchor may be installed on the back surface of the soil block in order to fix the soil block and the shelf after the soil block is inserted and placed on the shelf, but such a fixing anchor is installed. In many cases, the surface strength of the back surface of the soil block required when placing metal fittings and the like is insufficient as it is, so that it is difficult to fix the anchor with sufficient strength.

Therefore, even if the soil blocks are directly placed on the shelves and fixed to each other with the anchors, the adhesion between the soil blocks and the anchors is easily deteriorated due to vibration, etc. This will lead to a stable fixed state.

Therefore, the present invention has been made in view of such a problem, and when the soil blocks are moved and transported, contact between the soil blocks or between the soil blocks and other equipment may occur. It is an object of the present invention to provide a method for reinforcing the surface of a soil block, which is less likely to be damaged even when the soil block is damaged and has sufficient surface strength for installing various jigs. It is a thing.

[0011]

The present invention has been made in order to achieve the above object, and a cutting step for cutting out a soil structure into a plurality of block-like soil blocks, and the cut out soil block, Reinforcement step to reinforce for transfer and storage, transportation step to convey the reinforced soil block, and pile up the soil block according to the soil construction prototype before cutting out to construct a restored body of the soil construction In the transfer and preservation display method of the soil structure, which comprises a stacking step to perform and a surface finishing step for surface finishing the display surface of the restored body, the reinforcing step includes a step other than the display surface of the soil block. A resin as an undercoat layer is applied to the surface, and a protective layer of a fiber reinforcing material is further provided on the undercoat layer.

In the present invention, the protective layer is formed by applying a reinforcing material such as glass cloth, glass mat, chopped strand mat, non-woven fabric or organic material on the undercoat layer, and then applying fiber reinforced plastic thereon. It is preferably formed by. Further, in the present invention, the earth structure may be a buried site or a remains.
Furthermore, in the present invention, it is preferable that the resin in the surface protection step is any one selected from an epoxy resin, a polyester resin, a vinyl ester resin, and a urethane resin. In addition, in the surface protection step,
Depending on the situation, the undercoat layer and the fiber reinforcing material may be repeatedly laminated in sequence a plurality of times.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION FIG.
3, and the method for reinforcing the surface of the soil block of the present invention will be described in detail below.

First, as a stage prior to carrying out the method for reinforcing the surface of the soil block of the present invention, the work proceeds in the following procedure.

The soil block B to be reinforced is cut out from a soil structure such as a ruin or an archaeological site. The soil block B is numbered for each block in preparation for pile-up of soil blocks for later restoration work, and then the constraining frame material is provided. The outer peripheral portion is constrained by and the bottom steel plate material to be cut out, and then the cut out soil block B is immersed in a resin liquid or the like to be reinforced.

As described above, after the completion of the resin liquid impregnation reinforcement in which the soil block B is immersed in the resin liquid, the soil block surface of the present invention is reinforced.

The surface S of the soil block B often has unevenness or unevenness at various places in the as-cut state as shown in FIG. 1 (a) or (b). Therefore, first, these irregularities and irregularities are appropriately cut using a disc grinder or the like, and smoothed so as to make the subsequent reinforcement treatment efficient and reliable.

Thereafter, for example, a thin layer of epoxy resin is sprayed on the surface of the soil block B as a primer 10, roller coating, or brush coating is performed to form a layer in which soil particles are tightly bound together, and is used as a base for the subsequent treatment. .

After the spraying of the primer 10 is completed, the primer 10 is appropriately dried, and then an undercoat layer 11 having a thickness that covers the irregularities on the surface of the soil block B is formed so as to make the treated surface substantially smooth. However, the undercoat layer 11 must be made of the same resin as that of the primer 10 so as to maintain perfect adhesiveness to each other, and therefore, for example, an epoxy resin is used here.

After forming the undercoat layer 11, a glass cloth 12 (reinforcing material) in which glass fibers and the like are woven so as to be overlaid thereon.
A little or thicker glass mat, chopped strand mat, non-woven fabric or organic material is stuck, and the tensile strength and appropriate flexibility required in the reinforcing method of the present invention, and the fixing and holding property of various jigs to be mounted later Will be increased.

Here, when the glass cloth 12 is pasted, there are cases where the adhesiveness with the layers formed up to that point is further enhanced, or the thickness of each layer is large and bulky and heavy. Then, nails, pins, etc. are driven from the surface of the glass cloth 12 to securely connect and fix the soil block B to the main body.

The surface of the attached glass cloth 12, etc.,
Since it is made of fibers, many voids are distributed, and moisture may be absorbed from the outside to increase the weight of the voids. As a result, the adhesiveness to the lower primer layer 11 may be reduced. Therefore, the same epoxy resin as the primer 10 and the undercoat layer 11 is applied to fill the voids,
The blind layer 13 is formed.

The primer 10 formed by the above operation,
If it is judged that the undercoat layer 11, the glass cloth 12, and the crushing layer 13 cannot provide a sufficient surface reinforcing effect,
As shown in FIGS. 1A and 1B, a subbing layer 10, a glass cloth 12, and a crushing layer 13 may be repeatedly provided thereon to form a heavier reinforcing structure.

As shown in FIG. 1 (b), when the surface of the soil block B has large irregularities, in addition to the above procedure, after the undercoat layer 11 is formed, the large irregularities are covered to form a sufficiently integrated layer. Therefore, for example, a resin mortar in which an epoxy resin and silica sand are mixed is applied with a gold soldering iron to form a resin mortar layer 14 as a protective layer. In that case,
Brush the undercoat layer 11 again on the resin mortar layer 14,
It is applied by roller, spraying, etc., and the above series of operations is repeated.

In this way, after a series of spraying operations on the surface of the soil block B is completed, an outer shell, for example, an epoxy resin is applied as an overcoat to the upper layers of these layers, and FR
By blowing P15 (fiber reinforced plastic), the reinforcement of the soil block surface of the present invention is completed.

The soil block B whose surface has been reinforced has a fixing anchor 20 as shown in FIG. 2A, and the silkworm of the silkworm shelf type pedestal 30 shown in FIGS. 3A and 3B. It is inserted and placed on the shelf 31.

At this time, the fixing anchor 20 and the anchor insertion hole 32 of the silkworm shelf 31 are shown in FIG.
As shown in (c), the protruding portion 20 of the anchor 20 for fixing
After inserting a into the insertion hole 32, a spring type plate 20b provided on the protruding portion 20a and capable of expanding, for example, is expanded to fix the soil block B and the silkworm shelf 31.

In this Example, the primer 1 was used.
0, the undercoat layer 11, the blister layer 12, and the resin mortar layer 14 used an epoxy resin, but not limited to this.
For example, polyester resin, vinyl ester resin, urethane resin or the like may be used.

Further, in the examples, the protective layer of the fiber reinforced material was formed by applying the resin mortar on the glass cloth or the like, but the protective layer is formed by attaching the plate material of the fiber reinforced plastic with the adhesive. It can also be formed.
Further, the protective layer of the fiber reinforced material is formed by a method in which short fibers and a resin are fed by separate hoses, and mixed and sprayed at the tip of a gun, or a method in which a mixture of short fibers and a resin is sprayed by a gun. You can also

[0030]

As described in detail above, according to the method for reinforcing the surface of the soil block according to the present invention, the surface of the soil block is reinforced with a proper and sufficient strength. When inserting and placing inside, handling multiple soil blocks at the same time may cause the soil blocks to contact each other and damage each other, or cause the soil blocks to collide with the rack of the gantry itself and cause damage to the soil blocks. The problem goes away.

In addition, when the soil block is inserted and placed on the shelf and then a fixing anchor provided on the back surface of the soil block for fixing the soil block and the shelf is attached, a metal fitting for installing the fixing anchor is also provided. Sufficient strength and adhesiveness required on the surface of the soil block when piling, etc. are secured, and the reliability of the anchoring work for fixing is improved.

Therefore, if the soil blocks are placed on the rack of the rack and fixed to each other with the anchors for fixing, the performance of connecting and fixing the soil blocks and the shelves easily deteriorates due to an unexpected vibration such as an earthquake and the like, and the soil is blocked. This eliminates the fear that the blocks will move or that they will stick out of the shelf and fall.

[Brief description of drawings]

FIG. 1 (a) is a cross-sectional view showing an application example of the method for reinforcing a soil block surface of the present invention when the irregularities on the soil block surface are relatively small, and FIG. It is sectional drawing shown about the application example at the time of being comparatively large.

FIG. 2 (a) is an explanatory view showing a state in which a soil block subjected to the reinforcing method of the present invention is inserted and placed on a shelf of an exhibition stand, and (b) is a diagram after the soil block is inserted and placed ( a) It is the front view which expanded and showed the inside of FIG. A, (c) is a top view of (b) figure.

3 (a) and 3 (b) are a plan view and a side view showing an exhibition stand used when placing a soil block according to the present invention.

[Explanation of symbols]

B soil block S soil block surface 10 primer 11 Undercoat layer 12 glass cloth 13 blind layer 14 Resin mortar layer 15 FRP (fiber reinforced plastic)

─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-8-120660 (JP, A) JP-A-5-245809 (JP, A) JP-A-5-57707 (JP, A) JP-A-8- 336813 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) E02D 3/00 E02D 29/00 B27K 3/02 B44D 5/10

Claims (5)

(57) [Claims] 1. A cutting step of cutting a soil structure into a plurality of block-shaped soil blocks, a reinforcing step of reinforcing the cut soil blocks for transfer and storage, and a transportation of the reinforced soil blocks. Transportation process,
The soil block is piled up according to the prototype of the soil structure before being cut out, and a soil building process including a stacking process for constructing a restored body of the soil structure and a surface finishing process for finishing the surface of the display surface of the restored body. In the transfer and storage display method, the reinforcing step applies a resin as an undercoat layer to a surface other than the display surface of the soil block, and further provides a protective layer of a fiber reinforcement on the undercoat layer. How to reinforce soil block surface 2. The protective layer comprises a glass cloth, a glass mat, a chopped strand mat on the undercoat layer,
The method for reinforcing a surface of a soil block according to claim 1, which is formed by applying a reinforcing material such as a non-woven fabric or an organic material and then applying a fiber reinforced plastic thereon. 3. The method for reinforcing the surface of a soil block according to claim 1, wherein the soil structure is a buried archaeological site and a remains. 4. The resin in the surface protection step is an epoxy resin, a polyester resin, a vinyl ester resin,
It is any selected from urethane resin, The reinforcing method of the surface of the soil block in any one of Claims 1-3 characterized by the above-mentioned. 5. The reinforcement of the soil block surface according to claim 1, wherein in the surface protection step, the undercoat layer and the fiber reinforcement are repeatedly laminated in order of a plurality of times. Method.