Study on Calculation of Rock Pressure and Determination of Depth for Shallow Asymmetric Tunnel
The method to calculate rock pressure for shallow asymmetric tunnel is analyzed by means of taking a mountainous tunnel with semicircular crown and straight sidewall as the object in this paper. The calculation method of tunnel rock pressure has been presented with consideration of both tunnel structure size and its overburden depth. Finally the way to determine the shallow or profound depth of asymmetric tunnel is also obtained.
X. J. Zhou "Study on Calculation of Rock Pressure and Determination of Depth for Shallow Asymmetric Tunnel", Advanced Materials Research, Vols. 261-263, pp. 1034-1038, 2011