Extend Convergence-Confinement Method for deep tunnels in poroelastic anisotropic mediumNam-Hung Tran, Thi-Thu-Nga Nguyen, Duc-Phi Do, Tri-Ta Nguyen and Chu-Quang CaoMATEC Web Conf., 251 (2018) 04051DOI: https://doi.org/10.1051/matecconf/201825104051