1. Peck, B. B. (1969). Deep excavation and tunnelling in soft ground, State of the art volume. In 7th ICSMFE 4 225 290
2. Herzog M (1985) Die Setsungsmulde Über Seicht Liegenden Tunneln. Berlin Bautechnik 11:375–377
3. Addenbrooke TI, Potts DM (2001) Twin tunnel interaction: surface and subsurface effects. Int J Geomech 1(2):249–271
4. Kim CY, Bae GJ, Hong SW, Park CH, Moon HK, Shin HS (2001) Neural network based prediction of ground surface settlements due to tunnelling. Compt Rendus Geosci 28(6–7):517–547
5. Koungelis D. K and Augarde C. E (2004). Interaction between multiple tunnels in soft ground. In Developments in mechanics of structures and materials. In: Proceedings of the 18th Australian conference on the mechanics of structures and materials.