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Three-Dimensional Seepage Investigation of Riverside Tunnel Construction Considering Heterogeneous Permeability
Publisher: ASCE
Abstract: Seepage is a major concern during the construction of a riverside tunnel, because the seepage may cause both hydraulic and mechanical problems. At present, there are some well-accepted methods combining the hydraulic-mechanical ...
Equivalent Strength for Tunnels in Cement-Admixed Soil Columns with Spatial Variability and Positioning Error
Publisher: ASCE
Abstract: Cement-admixed soil columns are often used to strengthen the surrounding soft soil for enhancing tunnel stability. Such improved soil surrounds possess high spatial variability and heterogeneity in the strength and stiffness ...
Failure Modes of Tunnels with Improved Soil Surrounds
Publisher: American Society of Civil Engineers
Abstract: This paper presents the study of possible failure mechanisms and stability of large-diameter tunnels in cement-treated soil surrounds. The failure modes and critical tunnel support pressure of tunnels with varying strength ...