Cite
MLA Citation
Zehang Qian et al.. “Safety factor calculations of a tunnel face reinforced with umbrella pipes: A comparison analysis.” Engineering structures, vol. 199, 2019, p. . http://access.bl.uk/ark:/81055/vdc_100093250959.0x000050
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Zehang Qian et al.. “Safety factor calculations of a tunnel face reinforced with umbrella pipes: A comparison analysis.” Engineering structures, vol. 199, 2019, p. . http://access.bl.uk/ark:/81055/vdc_100093250959.0x000050