JPH0657705A - Pavement subgrade material installation structure - Google Patents

Abstract

PURPOSE:To reduce the construction cost and period by a dry construction method. CONSTITUTION:A compacted sand layer is constructed on a crushed stone layer which is compacted on a bearing ground. Blocks of paving material A which is divided into an appropriate size are placed over the sand layer. Each block of the material A has a penetrating hole 7 within itself in a horizontal direction in such a way as to correspond to the holes in other blocks, and a locking bolt 8 is inserted to penetrate the holes 7 in the blocks of the material A. Blocks of the material A are bound together by a locknut 9 which has a matching thread with that of the bolt 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a paving floor material used for paving a passage or the like between a road and a entrance porch, and more particularly to a structure used for mounting a paving floor material by a dry method. It is a thing.

[0002]

2. Description of the Related Art Conventionally, when paving a passage or the like between a road and a entrance porch in a house, the construction is performed as shown in FIG. In other words, the crushed stone layer 1 is formed in the crushed stone ground work,
Concrete is poured onto the crushed stone layer 1 to form the concrete layer 2, and after the concrete layer 2 is hardened, the mortar layer 3 is provided on the concrete layer 2 and the stone material 4 such as granite is laminated on the mortar layer 3. Are integrated.

[0003]

However, in the above-mentioned conventional example, there is a problem that the construction takes a long period of time and the construction cost because it is constructed by the wet construction method. The present invention has been made in view of the above problems, and an object of the present invention is to provide a paving floor material mounting structure that can be constructed by a dry construction method to shorten the construction period and reduce the construction cost. .

[0004]

In order to achieve the above object, the paving floor material mounting structure of the present invention has a structure in which a sand layer 6 of sand ground is layered on a crushed stone layer 1 of crushed rock ground to form an appropriate size block. A plurality of the paved floor materials A are arranged on the sand layer 6, and the insertion holes 7 formed so as to penetrate in the paved floor materials A in the horizontal direction are made to correspond to the paved floor materials A and the paved floor materials A are covered. The fastening bolt 8 is inserted into the insertion hole 7, and a plurality of paving floor materials A are fastened with a fastening nut 9 screwed to the fastening bolt 8.

It is also preferable to use a paving floor material A in which a surface-finished stone material 11 is integrally mounted on a concrete base material 10.

[0006]

According to the above construction, the pavement floor material A formed by being pre-blocked in the factory is arranged on the sand layer 6, and the plurality of pavement floor materials A are fastened with the tightening bolts 8 and the tightening nuts 9. Material A can be attached. This allows
The pavement floor material A can be installed by the dry method, and the construction period can be shortened and the construction cost can be reduced.

[0007]

EXAMPLE A paving floor material A is formed in a block into a suitable size in a factory, and a surface finishing stone material 11 is integrally provided on a concrete base material 10. As the concrete base material 10, a material such as CFRC (carbon fiber rain hose concrete) is used. With this CFRC, high strength, light weight,
It is durable, dimensionally stable and fire resistant. As the surface finishing stone material 11, natural stone such as granite, artificial stone, or the like is used. When the paving floor material A is manufactured, the pipe 12 is integrally embedded in the base material 10, and the insertion hole 7 penetrating in the horizontal direction is formed by the pipe 12. This pipe 12 is buried vertically and horizontally,
Through holes 7 are formed in the vertical and horizontal directions.

However, the paving floor material A constructed as described above
Is used to pave the passage between the road and the entrance porch as follows. First, excavate the ground 13 to a certain depth,
The excavated portion is subjected to crushed stone ground work to form a crushed stone layer 1 as shown in FIG. In the case of this embodiment, the first crushed stone layer 1a and the second crushed stone layer 1b are formed by performing the crushed stone ground work twice. Next, the sand layer 6 is laminated on the crushed stone layer 1 by performing sand industry. A solidifying agent such as cement may be mixed in the sand of the sand layer 6. The pavement floor materials A are arranged on the sand layer 6 as shown in FIG. 3, and the insertion holes 7 of the adjacent pavement floor materials A are made to correspond to each other. A tightening bolt 8 is inserted through the insertion hole 7 so as to extend over the plurality of paving floor materials A, and a tightening nut 9 is screwed to the tightening bolt 8 at the side end surface of the paving floor material A located at the end portion. By tightening, the plurality of paving floor materials A are fastened and the paving floor material A is fixed on the sand layer 6. Tightening nuts 9 are 2 at each end
It is screwed one by one to prevent it from loosening as a double nut structure. The tightening bolt 8 and the tightening nut 9 are made of, for example, stainless steel. When a plurality of paving floor materials A are fastened by inserting the tightening bolts 8, either one of the vertical and horizontal through holes 7 is fastened and both the vertical and horizontal directions are fastened. May be

Further, in the case of the paving floor material A'located at both ends in the vertical direction of FIG. 3, the surface finishing stone material 11 is laminated also on the side end surface of the base material 10 as shown in FIG. An opening 14 is provided in the surface finishing stone material 11 at a portion corresponding to the hole 7, and the nut storing recess 1 is formed in the base material 10 at the back of the opening 14.
5 is provided. The tightening nut 9 is housed and tightened in the nut housing recess 15, and a cap 19 such as a rubber cap is attached to the opening 14. An anchor 16 is embedded in the base material 10 of the paving floor material A ′, and a reinforcing material 17 made of stainless steel is attached to the anchor 16. This reinforcing material 17 is embedded in the sand layer 6 and
7 has a function of preventing lateral displacement of the pavement flooring material A'in addition to the function of reinforcement.

When the tightening bolt 8 is inserted beyond a predetermined length, the tightening bolt 8 is connected and inserted. That is, the tightening bolt 8 is provided with a half-divided portion 18 at the end thereof, and each half-divided portion 18 is provided with an uneven fitting portion 18a. Then, the half bolts 18 of the pair of tightening bolts 8 are overlapped with each other, the concave and convex fitting portions 18 a are fitted to each other, and are inserted into the insertion holes 7, whereby the tightening bolts 8 are connected. When the tightening bolt 8 is connected and inserted as described above, it is not necessary to prepare the tightening bolt 8 longer than necessary, and the tightening bolt 8 can be easily inserted and can be easily installed even in a narrow space.

[0011]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, a sand layer formed by sand sand is laminated on a crushed stone layer formed by crushed stone, and a plurality of paving floor materials, which are blocked to a suitable size, are arranged on the sand layer. Correspond to the insertion holes that are drilled horizontally through the floor material, and insert the tightening bolts through the insertion holes so that it spans multiple paving floor materials, and use multiple tightening nuts that are screwed into the tightening bolts. Since we are fastening individual pavement floor materials,
After crushing stone or sand, and laying the pavement floor materials that have been pre-blocked at the factory on the sand layer, attach the pavement floor materials by fastening multiple pavement floor materials with fastening bolts and fastening nuts. The pavement floor material can be installed by the dry method, and the construction period can be shortened and the construction cost can be reduced.

[Brief description of drawings]

FIG. 1 is a partially cutaway sectional view of an essential part of an embodiment of the present invention.

FIG. 2 is a partially cutaway cross-sectional view showing a state in which the paving floor material of the above is attached.

FIG. 3 is a plan view showing a state in which the paving floor material of the same is attached.

FIG. 4 is an enlarged cross-sectional view of a main part of FIG.

5A and 5B show the connection of the above tightening bolts, FIG. 5A is a front view showing a connected state, and FIG. 5B is an exploded front view.

FIG. 6 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

 A Pavement floor material 1 Crushed stone layer 6 Sand layer 7 Insertion hole 8 Tightening bolt 9 Tightening nut

Claims (2)

[Claims] 1. A gravel layer that has been crushed by crushed stone is laminated with a sand layer that has been crushed by sand, and a plurality of paving floor materials that have been made into blocks of an appropriate size are arranged on the sand layer. Corresponds to the through holes that are drilled through, and inserts tightening bolts through the through holes so that it covers multiple paving floor materials, and fastens multiple paving floor materials with tightening nuts that are screwed into the tightening bolts. An installation structure for paving floor material, which is characterized in that 2. The paving floor material mounting structure according to claim 1, wherein a paving floor material in which a surface finishing stone material is integrally mounted on a concrete base material is used.