JPH081077B2 - Gutter construction method using concrete gutter block and its concrete gutter block - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gutter construction method for constructing a gutter efficiently using a concrete gutter block, and also to a concrete gutter block suitable for use in the method. .

[0002]

2. Description of the Related Art Construction of a gutter using a gate-shaped concrete gutter block has the advantage that the bottom part of the gutter can be freely constructed regardless of the longitudinal gradient of the road.

As shown in FIG. 11, a gate-shaped gutter block a of this type integrally connects the front and rear end portions of the upper portions of side walls b, b opposed to each other by connecting beams c, c and both side walls b, b. It has a basic form in which the lower part d between b is opened, and the width of the connecting beam c in the front-back direction is at least 50
The cm has been designed as needed. The reason why the width of the connecting beam is set so large is that the side wall has a plate shape and is connected to each other only at the front and rear ends thereof by the connecting beam. This was to prevent the side groove from being forcedly deformed against the action of the side pressure (the side pressure due to the load of the vehicle, etc.).

As shown in FIGS. 12 to 13, the steps for constructing a gutter using the gate-shaped gutter block having such a structure are to lay the blocks a and a on a concrete foundation e in a continuous state. . After that, in order to clearly show the top end of the bottom-filled concrete, as shown in FIG. 12, a black ink jar is used to mark the inner wall lower end of the side wall. After that, after placing bottoming concrete from the connection beam f of the block and roughening the upper surface with reference to the marking line g,
The gutter bottom h was formed by leveling the top surface of the bottomed concrete with a plastering trowel.

[0005]

However, as described above, since the width of the connecting beam is formed wider than 50 cm, there are the following problems in forming the side groove bottom portion h.

Problems in marking out Since the marking out is performed simultaneously over a plurality of blocks, the ink pot is transferred from one block a1 side to the adjacent block a2 side at the block connecting portion. Must. As mentioned above, the width of the connecting beam is 50 cm
Because of the above, in the connection portion of the block, the ink jar must be delivered at a portion having a width of at least 1 m. In this case, it is impossible for a single worker to hold the adjacent connecting beams c, c and to deliver them by using both hands. Therefore, in the conventional art, one operator has a delivery rod with an ink jar hooked at the tip, and presents the ink jar to the waiting worker. There was a problem that work efficiency was poor because it required a worker.

Problems in placing bottom-concrete concrete Bottom-concrete concrete is placed from between the connecting beams f. However, since the width of the connecting beams is large as described above, the bottom part of the connecting beams is below. There was a problem that it was difficult to put concrete in.

Problems in Leveling Concrete with Bottom Plastering The top surface of bottoming concrete is usually leveled with a plastering trowel when the operator is in an inverted dragonfly state. However, since the width of the connecting beam is wide at 50 cm or more in the lower part of the connecting beam, it was not possible to use the normal plastering iron as it was and it was impossible to level it as required. Therefore, the plastering trowel must be leveled using a special jig with a long handle, which not only causes trouble in leveling work, but also causes a problem of unstable work. It is an object of the present invention to provide a gutter construction method capable of solving such a problem, and also to provide a concrete gutter block suitable for use in the method.

[0009]

In order to solve the above problems, the present invention employs the following means. The gutter construction method according to the present invention (hereinafter referred to as a construction method) integrally connects the upper portions of the left and right side walls 5 and 5 by connecting beams 6 and 6 only at the front and rear end portions thereof, and between the side walls 5 and 5. A concrete block body 2 formed by opening the lower portion 10 is used. After the block body 2 is continuously laid on a foundation,
A bottom concrete is poured from between the connecting beams 7 of each block main body, and the cast concrete is leveled to form a gutter bottom 25. Both side portions 11, 11 of the concrete connection lid 3 are fitted to the fitting portions 8, 8 and the both side portions 11, 11 are fixed to the both side walls 5, 5.

The concrete gutter block according to the present invention (hereinafter referred to as gutter block) is characterized by including a concrete block main body 2 and a concrete connection lid 3. In the block main body, the upper portions of the side walls 5 and 5 facing each other at the front and rear ends thereof are
Connecting beam 6, whose width in the front-back direction is set to 25-30 cm
6 and the lower part 1 between the side walls 5 and 5 is integrally connected.
0 is in an open state, and lid fitting portions 8 are formed at an intermediate portion between the connecting beams 7 in the front-rear direction. Further, the connecting lid is provided on both side portions 1 on the lid fitting portions 8 of the block body 2.
1, 11 are fitted, and the both side portions 11, 11 are fixed to the corresponding side walls 5, 5 by means of a fixture (for example, means for fixing bolts).
And the engaging projections 15 and 15 are provided on both sides of the lower surface.
5 is in contact with the inner surfaces of the left and right side walls 5, 5 when the both side portions 11, 11 are fitted into the lid fitting portions 8, 8. In the present invention, the middle portion of the lower portion 10 may be appropriately connected by a reinforcing beam as long as the lower portion 10 can be a placing portion for bottomed concrete.

[0011]

According to the present invention, however, the connecting lids 3 fixed to both side walls function as a reinforcing beam, and effectively reinforce the side groove against the side pressure caused by the load of the vehicle. For this reason, the width of the connecting beams in the front-rear direction is determined by the adjacent connecting beams 6, 6
There is no problem even if it is set to a small width, for example, a size of about 25 to 30 cm, which allows the ink fountain 20 to be handed over while being held by both hands.

By setting the width of the connecting beam to such a small width, the total width of the connecting beams 6 and 6 adjacent to each other in the connecting portion of the block can be reduced to about half of the conventional width, and also in the connecting portion of the block. , One worker can use both hands to deliver the inkwell. Further, when pouring bottom-filling concrete from between the connecting beams 7, it is possible to easily put the concrete in the lower back part of the connecting beams. Moreover, since the connecting beam has a small width, it is possible to easily trowel-finish the bottom-filling concrete including the inner portion below the connecting beam.

The engaging projections 1 are formed on both sides of the lower surface of the connecting lid 3.
5 and 15 are provided, the connecting lid 3 is fitted into the lid fitting portions 8 and 8 so that the outer surfaces 16 and 16 of the engaging projections come into contact with the sidewall inner surfaces 13 and 13. It becomes a state. As a result, the lateral pressure applied to the side wall is directly borne not only by the fixed portion of the coupling lid but also by the coupling lid itself.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 4 illustrate a gutter block 1 according to the present invention, which comprises a block body 2 made of concrete and a connecting lid 3 made of concrete. The block body 2
Is formed by integrally connecting the upper portions of the left and right side walls 5, 5 only at the front and rear end portions thereof by the connecting beams 6, 6, and the front and rear direction of the connecting beam 6 (the length direction of the block body)
The width is set to 25 to 30 cm, for example 25 cm. Then, on both sides of the space 7 between the connecting beams, there are provided lid fitting portions 8 for dropping the connecting lid 3, and two inserts for fixing the lid are provided at the central portion of the bottom portion 8a of the lid fitting portion. 9, 9 are provided at a required interval. Moreover, both side walls 5, 5
The lower part 10 between them is in an open state and serves as a casting part for bottom concrete. The middle part of the lower part 10 is the lower part 1
As long as 0 can be a casting portion of bottom-filled concrete, it may be appropriately connected by a reinforcing beam.

On the other hand, the connecting lid 3 has two side portions 11,
11 is not to be fitted into the lid fitting portions 8 and 8, and the both side portions 11 and 11 are provided with bolt insertion holes 12 and 12 in alignment with the inserts 9 and 9. On both sides of the lower surface of the connecting lid 3, the inner surfaces 1 of the side walls 5 and 5 facing each other are formed.
Engagement projections 15 and 15 are provided so as to come into contact with the projections 3 and 13. The outer surface 16 of the engaging projection 15 is a vertical surface that abuts the side wall inner surface 13, and the inner surface 17 is formed as a concave surface according to the lower surface form of the connecting beam.

In order to construct a gutter using the gutter block 1 having such a structure, as shown in FIG. 2, the block main body 2 is continuously laid on the concrete foundation 19 formed at the construction site. After that, marking out the top of the bottom concrete is performed. Delivery of the ink jar 20 at the connecting portion of the block can be performed by one operator holding the adjacent connecting beams 6 and 6 with both hands A and A, as indicated by a dashed line in the central portion of FIG. it can. After that, bottoming concrete is placed from between the connecting beams 7 of each block body, and the upper surface 22 of the placed concrete 21 is leveled with the marking line B as a reference to form a gutter bottom 25. To do. Then, as shown in FIGS. 2 to 4, both side portions 11, 11 of the connecting lid 3 are fitted to the lid fitting portions 8, 8 of the block body 2, and the bolts 26 for inserting the bolt insertion holes 12 are fitted for the lids. The connecting lid 3 is fixed to the side walls 5 and 5 by screwing and tightening the insert 9 provided on the bottom of the portion. The connection lid 3 fixed in this way functions as a reinforcing beam, and resists the action of lateral pressure due to a vehicle load or the like and does not cause excessive deformation of the side groove.

Particularly, the width of the connecting lid is set to be twice the width of the connecting beam, and the length of the lid fitting portion is set to be three times the width of the connecting lid. For example, when the gratings 27, 27 are fitted as shown in FIG. 3, the concrete surface C and the grating surface D having the same width can be alternately displayed on the upper surface of the gutter, which is preferable in the cityscape.

5 to 6 show a gutter block 1 according to the present invention.
Another embodiment of the present invention is shown, in which the upper end portions of both side walls are cut away at the intermediate portion in the front-rear direction between the connecting beams 7, and the lid fitting portions 8 and 8 are formed.
Is formed, and both side portions 11, 11 of the connecting lid 3 are formed.
Are fitted into the lid fitting portions 8, 8. Then, by aligning the bolts 26, which are inserted through the bolt insertion holes 12 provided at both ends of both sides of the connecting lid 3, with the inserts 9 provided on the bottom portion 8a of the lid fitting portion, and tightening them. The connection lid 3 is fixed to both side walls 5 and 5 (FIG. 6).

7 to 8 show a gutter block 1 according to the present invention.
Another embodiment of the present invention is shown, in which the connecting lid 3 is provided with overhanging portions 27, 27 at the central portions of both side portions thereof.
Further, on the block body 2 side, there are provided lid fitting portions 8 and 8 having cutout portions 29 and 29 that fit with the projecting portions 27 and 27. Then, the bolts 26 for inserting the bolt insertion holes 12 provided at both ends of the lid plate 11 on both sides and the projecting portion are respectively aligned with the bolts 26 and screwed into the inserts 9 provided in the lid fitting portion 8 to tighten them. By doing so, the connection lid 3 is fixed to both side walls 5 and 5 of the gutter block as shown in FIG.

FIG. 9 is a plan view showing a case in which the block main bodies 2 are continuously provided in accordance with the curve of the road, and the mounting state of the connecting lid 3 is shown by a chain line.

As shown in FIG. 10, the block main body 2 penetrates through the lower end portions of the side walls 5 and 5 to form one side wall 5a.
Reinforcing bars 30 projecting to the side may be laid out and the toe plate part 31 for preventing fall may be formed by in-situ casting. In addition, the block body 2 may be configured such that a toe plate is integrally provided on one side wall.

[0022]

EFFECTS OF THE INVENTION The construction method according to the present invention is such that after pouring bottomed concrete and leveling it to form the bottom of the gutter, the connection lids are bridged over the both side walls at the intermediate portion in the front-rear direction between the connection beams. This is integrated with the side wall. For this reason, after the construction of the gutter, the connecting lid functions as a reinforcing beam, so that the gutter is effectively reinforced against the side pressure due to the load of the vehicle. Therefore, the width of the connecting beam in the front-rear direction may be set to a small width (for example, about 25 to 30 cm) that allows the ink jar to be delivered while holding the adjacent connecting beams with both hands. become.

As described above, according to the method of the present invention, since the connecting beams can be formed to have a small width, the total width of the connecting beams adjacent to each other in the connecting portion of the block can be reduced to about half of the conventional width, and also in the connecting portion of the block. It becomes possible for one worker to deliver the ink jar with both hands, and labor saving can be achieved in comparison with the conventional construction method which required two people to deliver the ink jar in such a case. Further, when pouring bottom-filling concrete between the connecting beams, it is possible to easily put the concrete in the lower part of the connecting beams. Moreover, since the connecting beam has a small width, it is possible to easily trowel-finish the bottom-filling concrete including the inner portion below the connecting beam.

When the engaging protrusions are provided on both sides of the lower surface of the connecting lid, the connecting lid is fitted into the lid fitting portion so that the outer surface of the engaging protrusion becomes the inner surface of the side wall. It comes into contact. As a result, the lateral pressure applied to the side wall is directly borne not only by the fixed portion of the connection lid but also by the connection lid itself, and the reinforcement effect by the connection lid can be improved.

[Brief description of drawings]

FIG. 1 is a partially cutaway exploded perspective view illustrating an embodiment of a gutter block according to the present invention.

FIG. 2 is a cross-sectional view illustrating a process at the time of marking out after the gutter block is continuously laid on the foundation.

FIG. 3 is a perspective view showing a constructed gutter.

FIG. 4 is a cross-sectional view showing a state in which a connecting lid is fitted to the lid fitting portion of the block body and is fixed to the side wall.

FIG. 5 is an exploded perspective view illustrating another embodiment of the gutter block.

6 is a cross-sectional view showing a state in which a connection lid is fixed to a block body when the gutter block according to FIG. 5 is used.

FIG. 7 is an exploded perspective view illustrating another embodiment of the block body.

8 is a cross-sectional view showing a state in which a connection lid is fixed to a block body when the gutter block according to FIG. 7 is used.

FIG. 9 is a plan view showing a state in which a block main body is laid according to a curve of a road.

FIG. 10 is a cross-sectional view showing another aspect of the block body in a state where the connection lid is fixed to the block body.

FIG. 11 is a perspective view illustrating a conventional gate-shaped gutter block.

12 is a cross-sectional view illustrating a conventional method of constructing a side groove using the side groove block according to FIG.

FIG. 13 is a plan view illustrating a conventional method of constructing a side groove using the side groove block according to FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gutter block 2 Block main body 3 Connecting lid 5 Side wall 6 Connecting beam 7 Between connecting beams 8 Lid fitting part 10 Lower part between side walls 11 Side part of connecting lid 15 Engaging protrusion

Claims (2)

[Claims] 1. The upper portions of the laterally opposed side walls (5, 5) are
Only the front and rear end portions are integrally connected by the connecting beams (6, 6), and the lower part (10) between the side walls (5, 5) is opened, and the concrete block body (2) is used to form the gutter. In constructing, after continuously laying the block body (2) on the foundation,
Bottom concrete is poured from between the connecting beams (7) of each block body, and the cast concrete is leveled to form the bottom of the gutter (2
After forming 5), the lid fitting portions (8, 8) formed on both sides of the front-rear direction intermediate portion between the connecting beams (7) of the block body (2) are provided on both sides of the concrete connecting lid (3). (11, 11) is fitted and both side portions (11, 1)
A gutter construction method characterized in that 1) is fixed to both side walls (5, 5). 2. The width of the side walls (5, 5) facing each other in the front-rear direction is 25 to 3 only at the front and rear end portions thereof.
It is integrally connected by the connecting beams (6, 6) set to 0 cm, the lower part (10) between both side walls (5, 5) is opened, and the intermediate portion between the connecting beams (7) in the front-rear direction. A block body (2) made of concrete in which a lid fitting portion (8, 8) is formed, and both side portions (11, 11) on the lid fitting portion (8, 8) of the block body (2). ) Is fitted and both side portions (1
1, 11) are fixed to the corresponding side walls (5, 5) using a fixture, and engaging projections (15, 15) are provided on both sides of the lower surface so as to project. Collision part (15,
15), both side portions (11, 11) have lid fitting portions (8,
A concrete gutter block comprising: a concrete connecting lid (3) that abuts against the inner surfaces of the left and right side walls (5, 5) when fitted in 8).