The Effect of Tunnel Buoyancy on Ground Surface Settlement in Elastic Soil


Assaf Klar

Senior Lecturer, Faculty of Civil Engineering, Technion–
Israel Institute of Technology, Haifa, Israel


Previous published elastic solutions for ground displacement due to tunneling ground loss ignore the effect of tunnel buoyancy. This note discusses this issue and quantifies the buoyancy contribution to the surface ground settlement in elastic soil. Solutions are given both for homogenous and Gibson’s soils.

Keywords: Tunneling, Settlement, Elastic solution.

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