Journal of Zhejiang University SCIENCE A
ISSN 1673-565X(Print), 1862-1775(Online), Monthly

2008   Vol. 9   No. 9   p. 1239~1244

Determination of rock resistant coefficient based on Mohr-Coulomb criterion for underwater tunnel

Zhong-ren TU^†1,2, Qiang YANG¹, Qi-ming SHEN², Xiao-wen WANG²

(¹State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China)
(²School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China)
^†E-mail: tuzrtj@126.com; tuzr@mail.tsinghua.edu.cn
Received July 20, 2007; revision accepted May 28, 2008

Abstract: According to the load-structure method, the wall rock with lining can bear the load caused by the surrounding rock, and the rock resistant coefficient (RRC) is a key parameter for evaluating the capacity of this wall rock. Based on the Mohr-Coulomb yield criterion, this paper develops a formula for calculating the RRC, which has been applied to the real engineering project, such as Xiamen Xiang’an East Passage Underwater Tunnel Project. The fact shows that this formula is helpful for designers to determine the RRC value.

Key words: Rock resistant coefficient (RRC), Mohr-Coulomb yield criterion, Rock mechanics, Underwater tunnel
doi:10.1631/jzus.A071390             CLC number: U45; TU9

References:

[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).