JPH0235096B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a block particularly suitable for constructing heavy culvert blocks, gutter blocks, box culverts, etc., and a construction method thereof.

[Conventional technology]

Conventional blocks of this type are provided with bolt holes 12 that penetrate in the longitudinal direction of the block body 11, as shown in FIG. As shown in FIG. 9, after construction of each block, a plurality of blocks were tightened together with bolts 13 or wires were tightened using hydraulic jacks or the like.

Furthermore, as shown in FIG. 10, for side gutters, a flange 22 is formed at the end of a block body 21, and bolts and nuts are used in bolt holes 23 provided in the flange to integrate each block.

[Problem that the invention seeks to solve]

With this method, bolt tightening work is time-consuming, dirt gets caught between the blocks during tightening, and since metal is used for fastening, corrosion due to oxidation occurs over the long term, reducing the tightening strength. The dot was hot.

Another problem was that it took a lot of time to align the ends of the blocks and bring them into close contact with each other, prolonging the construction period.

The present invention solves these conventional problems and
It is an object of the present invention to provide a block and a method of constructing the block that can be securely tightened without requiring tightening work for each block.

[Means for solving problems]

In order to achieve this object, the block of the present invention has an upwardly tapered surface and a downwardly tapered surface that form an uneven engagement relationship with each other at the top of one end surface and the top of the other end surface of the block body, respectively.
The present invention is characterized in that taper holes for insertion of connecting pins each having a tapered shape at both ends are formed perpendicularly to each surface on both the tapered surfaces and at the lower part of both end surfaces.

In addition, the construction method of the block of the present invention is such that the upper part of one end face and the upper part of the other end face of the block body are
A series of blocks are formed by forming an upwardly tapered surface and a downwardly tapered surface that form an uneven engagement relationship with each other, and in which both tapered surfaces and the lower part of both end surfaces are formed with tapered holes for inserting connecting pins that are tapered at both ends. When constructing a culvert, etc., after installing the blocks on the foundation, taper holes on both sides are installed in the taper holes at the bottom of the block on the side where the tapered holes 4 and the upwardly tapered surfaces 2 are formed. Attach the connecting pins that are shaped like the above, and tilt the block diagonally so that the connecting pins protruding from the upwardly tapered surface fit into the taper holes formed in the downwardly tapered surface of the end surface of the next block to be installed adjacently. Once the taper hole is inserted into the connecting pin, a crane or the like is operated to lower the other block, and the block is rotated from an inclined state to a horizontal state using the engagement portion with the connecting pin 8 as a fulcrum. By fitting the connecting pin 8 installed in the tapered hole 6 at the lower end of the existing block into the tapered hole 6 at the lower end of the block, construction is carried out by closely connecting the blocks. .

[Effect]

In the present invention, a connecting pin is attached to the tapered surface formed on the end face of the block, and this connecting pin is
By using it as a guide when installing adjacent blocks, the positioning of the blocks and the adhesion of the end faces can be reliably and easily performed.

That is, during construction, adjacent blocks are hung diagonally so that the tapered hole on the downwardly tapered end face of the block fits into the upper half of the connecting pin installed in the tapered hole on the upwardly tapered surface of the existing block. Align as shown. After that,
By simply hanging the block as it is, the other end of the block will rotate from an inclined state to a horizontal state using the engagement part with the connecting pin as a fulcrum, and at the same time, the end face of the existing block and the end face of the block currently under construction will automatically separate. can be brought into close contact with each other.

〔Example〕

Hereinafter, the present invention will be specifically explained based on embodiments shown in the drawings.

Fig. 1 is a side view showing an example of a box culvert according to the present invention, Fig. 2 is a front view thereof, and Fig. 3 is a rear view thereof. A surface 2 is formed on the other end surface, and a downwardly tapered surface 3 is formed on the other end surface.
These tapered surfaces 2 and 3 are in an uneven engagement relationship with each other. Tapered holes 4 and 5 are formed in the tapered surfaces 2 and 3, respectively, with their axes substantially perpendicular to the surfaces, and tapered holes 6 are also formed in the lower portions of both end surfaces. In the figure, 7 is a groove for installing a sealing material for sealing between the blocks after construction, and is formed only on one end face.

FIG. 4 shows the shape of the connecting pin 8 to be inserted into the tapered holes 4, 5, and 6, and its diameter, length, and taper angle are selected depending on the weight of the block, its use, etc. Its material can be synthetic resin, concrete, etc.

Figure 5 shows the construction status of a box culvert. After laying the required foundation according to the nature of the ground, the block body 1 is installed, and when installing an adjacent block, the block body 1 is installed.
While suspending the block using a crane or the like, as shown in detail in FIG.
At the tip of the block body 1 that you are about to install
The taper hole 5 of the downwardly tapered surface 3 is inserted, and with the taper hole 5 inserted into the connecting pin 8,
Lower the crane. Then, the tapered hole 5 will fit deep into the connecting pin 8, and
The entire block body 1 rotates horizontally around the connecting pin joint part as a fulcrum, and the connecting pin 8 on the lower surface of the block
and the tapered hole 6 are also fitted, and the end faces of both blocks are brought into close contact with each other by their own weight. Also, at this time, the sealing material 9 installed in the groove 7 on the end face of the block comes into close contact with the opposing face, so that the sealing is completed completely.

By carrying out the construction in this manner, the simple work of fitting the still-floating blocks onto the connecting pins is sufficient to automatically align the blocks and bring the blocks into close contact.

FIG. 7 shows an example of a side gutter block to which the present invention is applied. In order to save space for providing a groove 7' for sealing material on the end face of the block body 1', the tapered surface 2' is formed only on both sides. A tapered hole 4' is provided therein, and a tapered hole 6' is also provided at the lower part of the end face.

〔Effect of the invention〕

As described above, according to the present invention, the tapered holes and connecting pins formed in the upward and downward tapered surfaces that form an uneven engagement relationship with each other make it extremely easy to align, draw together, and bring the blocks into close contact. Moreover, it can be carried out reliably, and has the effect of greatly contributing to improving work efficiency and shortening the construction period.

[Brief explanation of drawings]

FIG. 1 is a side view of a box culvert block according to the present invention, FIGS. 2 and 3 are front and rear views thereof, FIG. 4 is a perspective view showing a connecting pin used in the present invention, and FIG. An explanatory diagram showing the construction state, FIG. 6 is an enlarged cross-sectional view showing details thereof, FIG. 7 is a perspective view of a gutter block according to the present invention, FIG. 8 is a perspective view of a conventional block for box culvert, and FIG. 9 10 is an explanatory view showing the construction state, and FIG. 10 is a perspective view showing an example of a conventional gutter block. 1: Block body, 2: Upward tapered surface, 3:
Downward tapered surface, 4, 5, 6: Tapered hole, 7: Groove for attaching sealing material, 8: Connecting pin, 9: Sealing material.

Claims (1)

[Scope of Claims] 1. An upwardly tapered surface 2 and a downwardly tapered surface 3 are formed at the upper part of one end face and the upper part of the other end face of the block body 1, respectively, forming an uneven engagement relationship with each other. A block characterized in that tapered holes 4, 5, and 6 for insertion of connecting pins 8 having tapered ends are formed perpendicularly to each surface at the bottom of the surface and both end surfaces. 2 An upwardly tapered surface 2 and a downwardly tapered surface 3 are formed at the upper part of one end face and the upper part of the other end face of the block main body 1, respectively, and form an upwardly tapered face 2 and a downwardly tapered face 3 which form an uneven engagement relationship with each other, and at both the tapered faces and the lower part of both end faces. When constructing a series of culverts, etc. using a block having taper holes 4, 5, 6 for inserting a connecting pin 8 with tapered ends formed perpendicularly on each surface, after the blocks are installed on the foundation. , each of the upwardly tapered surfaces 2
Connecting pins 8, each tapered on both sides, are attached to the tapered hole 4 and the tapered hole 6 at the bottom of the end face of the block on the side where the upwardly tapered surface 2 is formed, and protrude from the upwardly tapered surface 2. The block is hung diagonally so that the taper hole 5 formed in the downwardly tapered surface 3 of the end face of the next block installed adjacently fits into the connecting pin 8, and when the taper hole 5 is inserted into the connecting pin 8, By operating a crane or the like and lowering the other block, the block is rotated from an inclined state to a horizontal state using the engagement portion with the connecting pin 8 as a fulcrum, and the existing block is inserted into the tapered hole 6 at the lower end of the block. A method of constructing blocks, characterized in that the construction is carried out by closely connecting the blocks by fitting a connecting pin 8 installed in a tapered hole 6 in the lower part of the end face.