JPS6229604A - Construction of antiskid joint in paved road - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Slip accidents on slopes occur frequently, including those involving human life, and preventive measures have been taken heretofore. A typical method was to make many circular depressions on the road, but this was dangerous because it would freeze in the cold season. The center of the road was raised, and in the case of one side gutter, the opposite side of the road was raised, but this created a complicated slope, making it unstable for pedestrians, bicycles, motorcycles, and cars. .

The present invention has been made to eliminate these drawbacks, and has improved water drainage, prevented freezing, increased the safety of passage through simple slopes, and increased the anti-slip effect through joints.

The construction method is simple. Roughly finish the road surface with ready-mixed concrete to a flat surface so that the slope has a single slope only in the up and down directions as shown in the drawing, and bury the joint rods while tapping them with a wooden trowel. In order to create a vertical joint 1 that runs through the length, use a trapezoid with a base of 30 mm and a height of about 20 mm. make it easier.

Next, create horizontal joints 3 that divide the plane 2 into sections of about 150 mm. In this case, the joint rod used has a trapezoidal cross section with a base of 25mm,
The other three sides should be no less than 20 mm and embedded in an inverted trapezoidal shape. The place where the horizontal joint intersects with the vertical joint is 5
If you brush the area every time you complete it, you can finish it without having to step on it again. It is important to use a guide rod to ensure regular alignment of the joints. In principle, the arrangement should be in the form of arrow feathers, but when the horizontal joints 3 are lined up for about 10 meters, in the case of gutters on both sides, they are converted into a reverse arrow shape as shown in horizontal joint 4, but when the horizontal joints 3 When about 5 points of intersection have been created, repeat the process by moving to the original arrow-like joints. In the case of a one-sided gutter, it is necessary to devise a way to run the horizontal joint in a straight line, rather than bending it into a dogleg shape, to allow water to drain into the gutter.

In addition, on a wide slope with a road width of 47+1 or more, the number of vertical joints is increased according to the width, so the horizontal joints that intersect with these will cross the road surface in a zigzag pattern. Also, the method of making horizontal joints in a dogleg shape (-straight line) can be applied anywhere as needed.

After burying the joint rods in this way, the concrete hardens in two to three days, and the pavement is completed when the joint rods are removed. Experiments have demonstrated that arrow-shaped joints can drain water extremely well even on single-slope slopes, wash away dirt and sand, and prevent freezing. With a joint width of this size, narrow bicycle wheels or pedestrians will not get caught, and it will provide a suitable level of anti-slip, which, combined with the single slope, increases stability.

If the present invention paved countless slopes, the effect on the entire transportation history would be immeasurable.

); - 吋 Mouth

Claims (1)

[Claims] When paving on a slope, joints with inverted trapezoidal depressions are constructed in the shape of arrows so that they lead from the road surface to the side gutters.