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An improved numerical simulation approach for arch-bolt supported tunnels with large deformation

Weiteng Li,Ning Yang,Bo Yang,Haiyao Ma,Tingchun Li,Qi Wang, Gang Wang,Yiteng Du, Meixia Zhao

Tunnelling and Underground Space Technology（2018）

Cited 53|Views5
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Abstract
•Focusing on supporting structures rather than surrounding rocks, an improved numerical simulation approach is proposed.•Both the supporting arch bearing behavior and the separable arch-rock interaction is realized.•The breakable anchor bolt model is established to simulate the stretching broken behavior of anchor bolt/cable.
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Key words
Tunnel support,Numerical simulation,Arch support,Anchor bolt broken,Separable arch-rock interaction,FLAC3D
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