Using the new techniques of short-distance and double-turning wood cableway, the distance between double-turning kickstands can be reduced from 12 m to 1.

Based on the analysis of soil modulus level and research on road material in Zhengzhou, the laying down typical structure of asphalt pavement of Zhengzhou is carried out in accordance with the road axle-load traffic ability of the city and the related design specifications of highway and city road.

The features and maintenance techniques of haulage road in the open pit of Dexing Copper Mine;