1. Bayoumi A, Abdallah M, Chehade FH (2016) Non-linear numerical modelling of the interaction of twin tunnels-structures. Int J Comput Syst Eng 10(8):1059–1063
2. Chehade HF, Shahrour I (2008) Numerical analysis of the interaction between twin tunnels: influence of the relative position and construction procedure. Tunnel Undergr Sp Technol 23:210–214
3. Elshamy EA, Attia G, Fawzy H, Hafez KA (2013) Behaviour of different shapes of twin tunnels in soft clay soil. Int J Eng Innov Technol (IJEIT) 2(7):297–302
4. Kumar P, Shrivastava AK (2017) Various factors effecting stability of underground structure: state of art. In: 7th Indian rock conference 25–27 October 2017, pp 576–580
5. Kumar P, Shrivastava AK (2019) Deformation behaviour of tunnels under different loading conditions: state of art. In: Proceedings of the 4th world congress on civil, structural, and environmental engineering (CSEE’19), Rome, Italy