Introduction

In China, with the continuous growth of population and the acceleration of urbanization, especially in economically developed areas along the eastern coast, the population of cities is rapidly increasing, and the urban diseases increasing population, increasing housing density, relatively narrow streets, and crowded vehicles in various regions are becoming increasingly serious, It is urgent to solve the urban disease by developing underground spaces such as shopping malls, pedestrian streets, parking lots, and railways. The first subway in China was the Beijing subway, which was opened in 1969. Subsequently, subways in Shanghai, Guangzhou, Tianjin, and Shenzhen have also been built, and some medium-sized cities in the eastern and central regions are planning subway construction. The construction of these subways will further alleviate the urban transportation environment and reduce urban pollution. Subway construction has broad prospects in China and also marks the peak period of subway development in China.