Deformation Analysis on Deep Buried Tunnel of Weak Rock Mass Material with Material Properties under TBM Construction

Abstract:

Deep buried tunnel of weak rock masses material is prone to generate large deformation; it’s easily trapped when TBM is used, so it’s important to predict the deformation in weak rock mass material. The method of orthogonal experimental design is adopted to design numerical experiment；Accordingly to the designed experiment, . FLAC3D is used to calculate and lots of data of deformation is derived. Percentage strain keeps the same when the diameter varies. Thorough analysis is carried out on derived data. The formulas of maximal strain in shied area, strain in tunnel face and supported area is regressed. The predictive value and test value have obvious linear relationship and it demonstrates that regressed formulas are credible.

• Periodical: Advanced Materials Research (Volume 675)
• Pages: 125-128
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.675.125
• Online since: March 2013
• Authors: Sen Wen, Qing Mei Kong
• Keywords: Deep Buried Tunnel, Numerical Experiment, Orthogonal Experimental Design, Regression Analysis, Weak Rock Masses Material

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