Calculation of pressure on the shallow-buried twin-tunnel in layered strata

•The existing approaches for calculating tunnel pressure are reviewed.•An analytical approach for calculating the twin-tunnel pressure in layered strata is proposed.•The proposed approach is based on limit equilibrium analysis with different failure patterns.•The proposed analytical approach was val...

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Veröffentlicht in:	Tunnelling and underground space technology 2020-09, Vol.103, p.103465, Article 103465
Hauptverfasser:	Lyu, Hai-Min, Shen, Shui-Long, Zhou, Annan, Chen, Ke-Lin
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical approach Equilibrium analysis Failure analysis Internal friction Layered strata Mathematical analysis Numerical analysis Pressure Pressure calculation Rocks Strata Surrounding rock Thickness ratio Tunnels Twin-tunnel
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