4Jancsecz S, Steiner W. Face support for a large mix-shield in heterogeneous ground conditions[A]. Tunnelling 94, conference proeedings, Institution of Mining and Metallurgy and British Tunnelling Society[C]. London: Chapman and Hall, 1994. 531 -549.
5Jefferis S A. Slurrids, Grouts. Chapter 48 of Construction Materials Reference Book[M]. Doran D K. Oxford:Butterworth- Heinemann, 1992.
6Anagnostou, G. and Kovari, K. Face stability in slurry and EPB shield tunneling[J]. Tunnels and Tunnelling, 1996, 28(12): 27-29.
7Milligan G W E, Norris P. Pipe-soil interaction during pipe jacking. Proceedings of the Institution of Civil Engineers[J]. Geotechnicai Engineering, 1999, 137(1): 27-44.
