[1] Badoni, D., Makris, N., 1996. Nonlinear response of single plies under lateral inertial and seismic loads. Soil Dynamics and Earthquake Engineering, 15(1):29-43.

[2] Cai, X.H., Cai, Y.P., 2004. Structure Stress Calculation for Hydraulic Pressure Tunnel. China Water Power Press, Beijing, p.124-135 (in Chinese).

[3] Exadaktylos, G.E., Stavropoulou, M.C., 2002. A closed-form elastic solution for stresses and displacements around tunnel. International Journal of Rock Mechanics and Mining Science, 39(7):905-916.

[4] Honjo, Y., Sako, K., Kikuchi, Y., 1999. Comparison of several regulation procedures in inverse analysis of horizontal subgrade reaction coefficient of piles. Journal of Applied Mechanics, 2:73-81.

[5] Kobayashi, N., Shibata, T., Kikuchi, Y., Murakami, A., 2007. Estimation of horizontal subgrade reaction coefficient by inverse analysis. Computers and Geotechnics, in press.

[6] Liao, S.S.C., 1995. Estimating the coefficient of subgrade reaction for plane strain condition. ICE Proceedings Geotechnical Engineering, 113(3):166-181.

[7] Lü, Y.N., 1981. A new formula of rock resistant factor “K” in hydraulic pressure tunnel. Chinese Journal of Geotechnical Engineering (Yan Tu Gong Cheng Xue Bao), 3(1):70-80 (in Chinese).

[8] Qian, L.X., 1955. Calculation method of elastic resistant coefficient “K” in hydraulic pressure tunnel. China Civil Engineering Journal (Tu Mu Gong Cheng Xue Bao), 2(4):369-380 (in Chinese).

[9] Xu, S.Q., Yu, M.H., 2004. Calculation of rock resistant factor in tunnel considering intermediate principal stress effect. Chinese Journal of Rock Mechanics and Engineering (Yan Shi Li Xue Yu Gong Cheng Xue Bao), 23(Supplement 1):4303-43059 (in Chinese).

[10] Xu, Z.Y., 1993. Rock Mechanics. China Water Power Press, Beijing, p.259-276 (in Chinese).