5Vojkan J, Jakob S, Zeljko V. The application of fibre reinforce shotcrete as primary support for a tunnel in flysch[J]. Tunnelling and Underground Space Technology, 2009, 24(6):723-730.
6A Ozsan, H Basarir. Support capacity estimation of a diversion tunnel in weak rock[J]. Engineering Geology, 2003, 68(3/4): 319 -331.