上海属软土地层,大规模地下施工难度很大。经过多年努力,上海突破了某些外国专家提出的“上海不适宜建地铁”的观念束缚随着2010年世博会临近,上海进入基础设施建设高潮期。为了世博会期间交通顺畅,为上海新一轮发展打造硬件基础,大力拓展地下空间、发展地铁和越江隧道,成为上海城市交通网络的关键工程。 Shanghai is a soft soil formation, large-scale underground construction is very difficult. After years of hard work, Shanghai broke through the concept of “not suitable for building a subway in Shanghai” put forward by some foreign experts. With the approaching of the 2010 World Expo, Shanghai will enter the climax of infrastructure construction. In order to ensure smooth traffic during the Expo, build a hardware foundation for Shanghai’s new round of development, vigorously develop underground space, develop the subway and the Vietnam River Tunnel, and become a key project of Shanghai’s urban transportation network.