JPH0440495B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention provides a construction method for a top-shaped block in which a conical or pyramidal body is provided at the lower part of a flat upper board, and a cylindrical shaft leg is provided at the center of the lower part of the body. It is related to.

(Prior art) A top-shaped block balances the weight of the block itself, the vertical load it receives, and the total force of the ground reaction force and frictional resistance generated in the body and pivot legs, so that the block can be leveled without uneven settlement. It exerts the bearing capacity of the soil, and is used as a basic component in various ground stabilization and foundation reinforcement construction methods.

(Problem to be solved by the invention) However, in the conventional construction method, there is no means to accurately suppress the tilting movement of the top-shaped block, so it is not easy to arrange the body surface symmetrically with respect to the vertical line. If some of the top-shaped blocks are tilted due to incorrect construction, the vertical component of the ground reaction force is diverted to buoyancy to prevent subsidence on the body surface of each top-shaped block, and the horizontal component is reduced. In some cases, the original effect of the top-shaped blocks, which cancel each other out, could not be sufficiently enhanced.

Therefore, the object of the present invention is to arrange the pivot legs of all the top-shaped blocks arranged in multiple rows and columns in an upright manner,
To provide a method for laying a top-shaped block that can accurately hold the body surface of each top-shaped block symmetrically with respect to a vertical line.

(Means for Solving the Problems) As explained below using reference numerals in the attached drawings, in the installation method of the present invention, a conical or pyramidal body 4b is provided at the lower part of the flat upper plate 4a, and the body 4b The top-shaped blocks 4, 4, .
The lower parts of the blocks 4, 4, . , the pivot legs 4c, 4c, . . . of each top-shaped block 4, 4, . . . are arranged vertically.

(Function) When installing the top-shaped blocks, the lower connecting member 3 is first installed horizontally on the ground 6, and then each top-shaped block 4 is installed vertically with each pivot leg 4c using the lower connecting member 3 as a reference. At the same time, the flat upper board 4a is installed on the ground in a plurality of rows and columns, with the side surfaces of the flat upper board 4a in contact with each other. Then, the upper connecting member 5 is connected to the upper part of each of the vertical and horizontal top-shaped blocks 4, and the plural rows of vertical and horizontal top-shaped blocks 4, 4, etc. are fixed to each other in both the vertical and horizontal directions at two places, the upper and lower parts. be done.

(Embodiment) In the illustrated embodiment, the lower connecting member 3 has a plurality of support rods 2, 2... arranged vertically and horizontally at the same interval equal to the diameter of the flat upper plate 4a, and the vertical support rods 2 and the horizontal support rods 2, 2... Rings 1, 1, . . . are fixedly installed at the intersections with the supporting rods 2 in the direction, and the shaft legs 4c of the top-shaped block 4 are vertically fitted into the rings 1.

The upper connecting member 5 includes a vertical support member 5a that passes through a hanging tool 4d that protrudes from the upper part of the flat upper board 4a.
and a lateral support member 5b that comes into contact with the upper surface of the hanging tool 4d.

Each vertical support member 5a and each horizontal support member 5b intersect at a hanger 4d, and are fixed to the hanger 4d by suitable means such as wire binding or welding. Thereafter, earth and sand are backfilled, and underground structures and above-ground structures are constructed on top of the top block groups 4, 4, . . . .

Note that the shapes and structures of the lower connecting member and the upper connecting member are not limited to those described above, and may be such that frame-shaped blocks arranged in multiple rows and columns can be fixed to each other in either the vertical or horizontal rows at each of the upper and lower parts. That's fine.

Each of the constituent members of the lower connecting member 3 and the upper connecting member 5 has a second
They may intersect at right angles as shown in the figure and FIG. 3, or diagonally as shown in FIG.

(Effects of the Invention) As described above, in the installation method of the present invention, the top-shaped blocks 4, 4, etc., which are arranged in a plurality of rows and columns with the side surfaces of the flat upper board 4a in contact with each other, are placed in two places, the upper and lower parts. Since the upper connecting member 5 and the lower connecting member 3 fix each other in both columns and rows, the pivot legs 4c of each top-shaped block 4, which were originally arranged vertically, are accurately maintained in a vertical state. The blocks are maintained without any local tilting movement in either columns or rows. Therefore, the body surfaces of all the top-shaped blocks 4 are accurately arranged and maintained symmetrically with respect to the vertical line, and the original excellent characteristics of the top-shaped blocks can be maximized.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an example of a top-shaped block used in the present invention. FIG. 2 is a longitudinal cross-sectional view of the top-shaped blocks in an installed state in an embodiment of the present invention, FIG. 3 is a plan view of the top-shaped blocks installed, and FIG. 4 shows the lower connecting member 3. It is a perspective view shown separately. FIG. 5 is a plan view of a top-shaped block in another embodiment of the present invention. 1... Ring, 2... Support rod, 3... Lower connecting member, 4... Top-shaped block, 4a... Flat upper plate, 4b... Conical body, 4c... Cylindrical pivot leg,
4d...Hanging tool, 5...Upper connecting member, 5a...Vertical support member, 5b...Horizontal support member, 6
……ground.

Claims (1)

[Claims] 1 Conical or pyramidal body 4 at the bottom of the flat upper plate 4a
b, and a cylindrical shaft leg 4 is provided at the center of the lower part of the body 4b.
The top-shaped blocks 4, 4... provided with c are arranged in multiple rows vertically and horizontally with the sides of the flat upper board 4a in contact with each other, and the lower part of each top-shaped block 4, 4... is placed in both the vertical and horizontal rows. They are fixed to each other by a lower connecting member 3, and the upper parts of the respective top-shaped blocks 4, 4... are fixed to each other by an upper connecting member 5 in both columns and rows, so that the axes of each top-shaped block 4, 4... are fixed to each other by an upper connecting member 5. A construction method for installing a frame-shaped block in which legs 4c, 4c... are arranged vertically.