JP2558675Y2 - Road crossing ditch 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 road crossing groove block, and has been developed to make a structure in which the front and rear of the road crossing groove block hardly cause land subsidence due to the running pressure of a heavy object such as an automobile. .

[0002]

2. Description of the Related Art A conventional road crossing groove block is a U-shaped block having a step groove on which a grating is mounted.

[0003]

In this case, the ground subsides before and after the road crossing groove block, and only the road crossing groove block protrudes from the road surface, deteriorating the riding comfort of the vehicle,
In some cases, there has been a problem that even the groove block may be damaged.

[0004]

SUMMARY OF THE INVENTION The present invention has been developed for solving the above-mentioned drawbacks. In a U-shaped block having a step groove on which a lid such as a grating permeable lid is placed on the upper surface, Step 2 for placing anti-sinking plate 10 in the middle of side wall 5
Is formed.

[0005] The road crossing groove block may have a rectangular side surface. However, since the road has a flow gradient from the center to the side, the road crossing groove block extends from the center to the side of the road so that the center can be abutted. The rising angle of the abutment surface 3 on the road center side with respect to the bottom surface 4 from 90 ° to the obtuse angle side so as to approximately match the slope
When the road crossing groove block is displaced to be advantageous.

[0006]

The mounting step 2 is formed in the middle of the side wall 5 and the flat land subsidence prevention plate 10 is installed in the mounting step 2 and buried in the road surface, so that the ground before and after the road crossing groove block is reinforced,
The flatness between the upper surface of the road crossing groove block and the road surface is maintained.

In this groove block, the rising angle of the abutment surface 3 on the road center side with respect to the bottom surface 4 is deviated from 90 ° to the obtuse angle side so as to substantially conform to the gradient from the center to the side of the road. Occasionally, there is no gap at the central groove block abutment, eliminating the need for cast-in-place seam concrete.

[0008]

FIG. 1 is a sectional view showing a state in which a settlement preventing plate is placed on a road crossing groove block according to the present invention. FIG. 2 is a side view of only the road crossing groove block. As can be seen from these figures, the road crossing groove block 1 is a U-shaped block having a grating 11 or a step groove 6 on which a normal concrete lid is placed on the upper surface at positions opposing each other on the upper side of both side walls. A mounting stage 2 on which one edge of the anti-sinking plate 10 rests is formed in the middle part of the outside of the block side wall 5. In this example, the mounting position of the mounting stage 2 is around the middle of the block, and is provided slightly below the double of the thickness of the anti-sinking plate 10 from above. The mounting stage 2 has a connecting pin insertion hole, for example, into which a connecting pin 7 having a large diameter in the middle and tapered at both ends is inserted, and a piece of the anti-sinking plate 10 is inserted into a protruding portion of the pin. The connection pin 7 is inserted into the pin hole on the back surface of the anti-sinking plate 10 so that it does not come off. The anti-sinking plate 10 is covered with a pavement material on its upper surface and is made invisible.

For connecting the adjacent road crossing groove blocks 1, a joint fitting 8 as shown in FIGS. The structure of the joint fitting 8 is the anchor bar embedded in the block.
A triangular connection plate 8c extending between both blocks is screwed into the connection bolt hole 8b integral with 8a by the connection bolt 8d.

Conventionally, road crossing grooves block of this kind, as seen in FIG. 6, the surface 13 abutment blocks to each other perpendicular to the bottom surface, i.e. the rising to the block bottom surface 14
The angle was 90 °. Therefore, there is a large groove at the center of the road, so there is no problem if there is a median strip, but it was necessary to cast in place concrete 15 to fill the center. FIG. 5 shows an example of the present invention. As is apparent from comparison with FIG. 6 showing a conventional block, the road is adjusted so as to substantially match the gradient from the center to the side of the road.
The rising angle of the center abutting surface 3 with respect to the bottom surface 4 is deviated by W from 90 ° of the dashed line to the obtuse angle side . As a result, the construction can be easily completed simply by installing the blocks while connecting the blocks with the joint fittings.

[0011]

[Effect of the Invention] The above-mentioned structure of the road crossing groove block of the present invention makes it difficult for land subsidence to occur even under the running pressure of heavy objects such as automobiles. The ground subsided before and after the road crossing groove block, eliminating only the road crossing groove block protruding from the road surface and deteriorating the riding comfort of the car, and also has the effect of preventing damage to the groove block beforehand Was. In addition, construction was made easier.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a road showing a state in which a settlement preventing plate is attached to a groove block.

FIG. 2 is a side view of a groove block.

FIG. 3 is a plan view of a joint fitting of the groove block.

FIG. 4 is a sectional view of a connecting portion of the groove block.

FIG. 5 is a side view showing a connection state of the groove blocks.

FIG. 6 is a side view showing a conventional connection state.

[Explanation of symbols]

1 Road crossing groove block 2 Mounting step 3 Butt surface 4 Bottom 5 Side wall 6 Step groove 7 Connecting pin 8 Joint fitting

Claims (2)

(57) [Scope of request for utility model registration] 1. A U-shaped block having a step groove on which a lid such as a grating permeable lid is placed on an upper surface, wherein a mounting step 2 of a settlement preventing plate 10 is formed at an intermediate portion on the outer side of a side wall 5. Groove block. 2. The groove block according to claim 1, wherein the road block is adapted to substantially match the gradient from the center to the side of the road.
A road crossing groove block in which the rising angle of the center contact surface 3 with respect to the bottom surface 4 is deviated from 90 ° to the obtuse angle side .