Highway Engineering Construction
The mission of new or reconstruction of highways is confirmed according to the road network planning. In the construction of a country's highway, the effect and position of the railway, waterway and air transportation should be considered in the transportation. According to its political, military, economic and people's living needs, and in combination with the local public opinion environment conditions, the national highway network plan shall be formulated according to the grade. From the administrative aspect, it is generally divided into four grades: National Road, provincial road, county road and township road. In addition, serious factories and mines enterprises and forestry departments have their own road planning if necessary. The boundary and methods of highway classification and corresponding standards of each country are different. The national highway planning of China is controlled by the state, and the highway planning under the province is controlled by local governments at all levels. Good projects not only have outstanding planning, but also depend on the quality of construction to a greater extent. In construction, data, machines and tools, operation are the primary links to ensure the quality of products. All construction must strictly abide by each construction standard. First, the preparation of data includes the types, standards, quantities, stacking places, supply and storage of data, etc.; second, construction machines and tools, including equipment and repair of types, models and quantities; third, operation shall be carried out carefully. After each process is completed, the next process can be carried out after checking and checking. All processes are completed and can be delivered for use only after inspection.