How many lanes is the width of the roadbed at 27 meters?

The roadbed refers to the strip structure built as the foundation of the road surface according to the location of the route and certain technical requirements, which is the foundation of the railway and highway, and the roadbed is a linear structure built with soil or stone. The roadbed is built under good geological, hydrological and climatic conditions. In terms of materials, the roadbed can be divided into three types: dirt roadbed, stone roadbed, and earth and stone roadbed.

Basic explanation. 1) [bed;roadbed;subgrade of highway]

2) Fundamentals of railways and roads.

3) Surface earthworks supporting railway ballast and rails.

4) [substructure] The soil foundation that supports the railway line and ballast.

Cited explanations. Refers to the foundation of railways and highways, which are generally divided into embankments and trenches.

Wei Wei, Chapter 1 of the fourth part of "The East": "In front is a raised railway embankment, and below is a bridge hole. Yang Shuo "Kapok":

I ran down the raised embankment with some of the passengers and along the water's edge. Hong Shen The first scene of "Qinglong Pond": "Before July 1st, the roadbed must be built and handed over to the province. ”

In China, the width of each motorway of one-way multi-lane highway is 3 meters, and the width of each lane of one-way single-lane highway is meters; The width of each motorway on the urban arterial road is meters, and the width of each lane of the intersection turning ramp shall not be less than meters.

Therefore, it is a two-way 4-lane road, and the green separation zone in the middle is generally 1 to 2 meters.

Designed for highways at 120 yards per hour. 4 lanes in both directions. Main lane 4*4 16Shoulder 2 * curb 2 * middle separation zone 3 meters. Dirt shoulder 2*1 1A total of 16 + 5 + 1 + 3 + 1 27 meters.

6 lanes plus non-motorized lanes and sidewalks.

Generally, it is two-way three-lane.

Summary. According to national regulations, the width of the highway base is 24 meters, and the actual width is 27 meters. The solution to this problem is:

First of all, according to national regulations, the width of the highway base is 24 meters, and the actual width is 27 meters, of which, the shoulder width is 3 meters, the shoulder width is 2 meters, and the shoulder width is 1 meter. Secondly, in the construction process, the pavement width should be determined according to the requirements of the pavement width, and the shoulder width should be determined in combination with the actual situation, so as to ensure the stability of the pavement width. Finally, in the construction process, the pavement width should be determined according to the requirements of the pavement width, and the shoulder width should be determined in combination with the actual situation, so as to ensure the stability of the pavement width.

In addition, during the construction process, attention should be paid to the control of the pavement width to ensure the stability of the pavement width and ensure the accuracy of the pavement width.

The width of the highway base is 24 meters, and the actual width is how many meters.

According to national regulations, the width of the highway base is 24 meters, and the actual width is 27 meters. The solution to this problem-type rushing is as follows: first, according to national regulations, the width of the highway base is 24 meters, and the actual width is 27 meters, wherein, the shoulder width is 3 meters, the shoulder width is 2 meters, and the shoulder width is 1 meter.

Secondly, in the construction process, the pavement width should be determined according to the requirements of the pavement width, and the shoulder width should be determined in combination with the actual situation, so as to ensure the stability of the pavement width. Finally, in the construction process, the pavement width should be determined according to the requirements of the pavement width, and the shoulder width should be determined in combination with the actual situation, so as to ensure the stability of the pavement width. In addition, during the construction process, attention should be paid to the control of the pavement width to ensure the stability of the pavement width, and to ensure the accuracy of the pavement width.

I'm sorry I don't understand, but can you elaborate on that?

According to national regulations, the width of the highway base is 24 meters, and the actual width should be 26 meters, of which 2 meters is the width of the shoulder. The shoulder width refers to the shoulder width on both sides of the road surface, which is part of the road surface width and is the basis of the road surface width. The purpose of the shoulder width is to protect the road surface from damage caused by car tires, while also providing a safe space for pedestrians and cyclists.

In addition, the width of the shoulder can also provide space for vehicles to park, as well as space for vehicles to detour in case of an emergency, and space for emergency vehicles such as fire trucks and ambulances. Due to the elimination of wheel families, the setting of the shoulder width is of great significance to improve road safety and convenience. In short, the width of the highway base is 24 meters, and the actual width should be 26 meters, of which 2 meters is the width of the shoulder, which is part of the width of the road surface, and is the basis of the width of the road surface.

12+( = subgrade width The roadway and sidewalk are a slope.

It is necessary to look at the thickness of each layer, and also to calculate the width of each layer by looking at the proportional grading required by the drawing.

Structural layer thickness Slope Pavement width.

The width range of the roadbed is composed of the width of the road surface, the width of the separation, the width of the hard shoulder, and the width of the dirt shoulder, so the width of the roadbed is more than the width of the road surface by the three parts of the separation belt, the left and right 2 hard shoulders, and the left and right 2 dirt shoulders, such as the highway design speed of 100km h, the ** separation zone 2m, the hard shoulder 3m, the dirt shoulder, the roadbed is 2 + 2 * 3 + 2 * wider than the road surface. The first-class road is about 8 meters wide, and the second-class road is about 8 meters wide, depending on the grade of the road and the design speed.

The width of the roadbed minus the width of the curbs on both sides is the width of the pavement.