How to mark the plastic 200 meter runway?

Elementary school is generally 200

200-meter runway: the radius of the curve is meters, the length of the straight section is meters, a total of 4 lanes, the minimum width of the lane is 1 22 meters, the maximum is meters, the width of the lane line is 5 cm, and the width of all lanes should be the same.

Middle schools are generally 400

The standard runway has a total length of 400 meters, the curve of the runway is semicircular, and the radius of the innermost ring is 36 meters, each runway is wide by meters, and there are 8 runways.

It is known that the total length of the standard runway is 400 meters, which refers to the length of the innermost runway, and the radius of the innermost ring is 36 meters, so you only need to find the sum of the perimeters of the two semi-circular curves of the innermost runway, and then subtract the sum of the perimeters of the two curves from 400 meters to get the length of the straight.

m The total length of the fourth runway is obtained by the sum of the two semicircular curves of the fourth lap plus the sum of the two straights, and the length of the straight is already known in front of us: 87, so the total length of the fourth runway is: 87 2+2 423 meters.

The first 87 2+2 400

Second, 87 2+2 408

Third, 87 2+2 415

Fourth, 87 2+2 423 m.

Fifth: 87 2+2 430 m.

Sixth 87 2+2 438 m.

Seventh 87 2+2 445 m.

Eighth 87 2+2 453 m.

Hello dear! I'm here to answer your questions, and I'm glad you asked! What kind of paint is used for marking the plastic runway; The material of runway marking is directly called polyurethane marking paint.

If your plastic runway is red, you will use red paint, and green you will use green paint. Buy a brush, you can cover it directly with a brush, environmentally friendly floor paint. The protective topcoat is a two-component polyurethane elastomeric coating with good adhesion and weather resistance.

The cavity of the paint film has sufficient elongation and tensile strength, which can adapt to the stress change requirements of the plastic layer. It is not only used as a special protective coating for plastic runways, but also can be used for the installation and maintenance of plastic runways.

1. Primary schools generally have a 200-meter track.

The radius of the curve is meters, the length of the straight section is meters, a total of 4 lanes, the minimum width of the lane is meters, the maximum is meters, the width of the lane line is 5 cm, and the width of all lanes should be the same.

Second, middle schools are generally 400 standard runways.

With a total length of 400 meters, the curve of the runway is semi-circular, and the radius of the innermost circle is 36 meters, and each runway is wide by meters, and there are 8 runways. It is known that the total length of the standard runway is 400 meters, which refers to the length of the innermost runway, and the radius of the innermost ring is 36 meters, so you only need to find the sum of the perimeters of the two semicircular curves of the innermost runway, and then subtract the sum of the perimeters of the two curves from 400 meters, and Qi has already obtained the length of the straight.

The plastic track, also known as the all-weather track and field track, is composed of polyurethane prepolymer, mixed polyether, waste tire rubber, EPDM rubber particles or PU particles, pigments, additives, and fillers. The plastic running props have the characteristics of good flatness, high compressive strength, appropriate hardness and elasticity, and stable physical properties, which are conducive to the speed and technical play of athletes, effectively improve sports performance, and reduce the rate of fall injuries. The plastic runway is composed of polyurethane rubber and other materials, which has a certain elasticity and color, has a certain ultraviolet resistance and aging resistance, and is internationally recognized as the best all-weather outdoor sports floor material.

The national standard for runway surface of synthetic materials was approved and issued on December 5, 2011 and implemented from May 1, 2012, and is applicable to runway surface courses laid by synthetic materials (including polyurethane).

In November 2015, schools in Anhui, Henan, Jiangsu, Shanghai, Shenzhen and other places successively had the "toxic runway" incident in Zhenyin. "Xinhua Vision" reporter investigation found that some school plastic runway raw materials are suspected of being "three no" products, toluene and xylene exceed the standard by 139 times to enter the campus through the formal bidding process, and there are loopholes in the bidding, raw materials, construction, acceptance and other links of the campus project.

The standard runway has a total length of 400 meters and should consist of two parallel straights and two curves of equal radius. With the exception of grassy runways, the inner side of the runway should be demarcated by a protrusion made of suitable materials. The grinding edge of the cave is about 5 cm high and at least 5 cm wide. [5]

For all track races of 400m and below, each athlete should occupy one lane wide, with a minimum width of meters and a maximum of meters, and a width of 5 cm, with all lanes of the same width. The length of the first lane shall be measured as specified in paragraph 2 above, and the length of the other lanes shall be measured 20 cm beyond the outer edge of the inside lane line.

The spacing between the starting lines (number of reaches) of each 200-meter track is related to the number of corners, the width of the lane, and the number of passes, and can be calculated by formula.

It is calculated as follows:

The number of starting point extensions = the length of a curve on an outer road The length of the first curve = 2 [r+(n-1)d+i.e.: ln(200m) the number of starting points = [(n-1) (ln represents the number of forward extensions at the beginning of n roads, m represents the number of curves (number of curved sections), n represents the number of passes, and d represents the width of the lane.

For example, if you know d = and the number of curves m = 4, find the number of 200m fourth runway starting point?

l4=π[(n-1)

That is, the number of 200m at the starting point of the fourth runway is.

The start and finish of the first lane of 400 meters are together, the second starting point is one meter ahead of the first, the third and eighth lanes, and so on.

The first 200m lane is at the second bend at the start of the race, the same as the one behind.

Are you talking about the athletics field or something else?