Challenges in tunnel engineering in Southeast Asia

In March of 1992, the joint venture between JV Bilfinger + Berger Bauaktiengesellschaft and Eastern Construction Co. Ltd. was awarded the project for the Chungho Line CC560 Taipei, Taiwan. This planned construction project concerned the finished construction of an approximately 4.5 km long subway line with three stations, a parking area for the trains, a vent shaft, and nine emergency exits. Within the scope of the entire project, Bilfinger + Berger tunnelled two single-track tunnels having a length of a total of 6,440 meters and a diameter of 6.27 meters. In 1996, Bilfinger + Berger was awarded the assignment of the finished construction of an approximately 10km long subway line in the downtown area of Bangkok, Thailand, in cooperation with the Thai partner Ch. Karnchang and the Japanese companies of Kumagai Gumi and Toyo Construction. The entire project included the construction of nine stations, a depot, approximately 15.3km long tunnels with a diameter of 6.46 m, and three emergency exit structures.