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RISUsing Grouting of Shield Tunneling to Reduce Settlements of Overlying Tunnels: Case Study in Shenzhen Metro Construction
Publisher: American Society of Civil Engineers
Abstract: Grouting control of shield tunneling is of paramount importance to reduce settlements of existing tunnels below-passed by shield tunneling along a curved alignment and in crowded urban areas. The methodology and scheme of ...
Coupled Analytical Method for Braced Excavation Based on the Pasternak Foundation Model and Nonlinear <i>p</i>–<i>y</i> Curve Model
Publisher: American Society of Civil Engineers
Abstract: Accurate prediction of excavation deformation and stress affects the safety of excavation engineering and the surrounding environment. However, the traditional calculation method ignores the influence of soil shear action ...
Study on the Mechanism of Tunnel Subhorizontal Jet Grouting Reinforcement Based on a Shell Model on Two-Parameter Foundation
Publisher: ASCE
Abstract: Horizontal jet grouting columns (HJGCs) are commonly adopted to reinforce weak ground ahead of the tunnel excavation face. However, the dynamic mechanical response of the HJGCs during tunneling remains unclear. To provide ...
Dynamic Distortion and Long-Term Settlement of Weathered Argillaceous Siltstone under Subway Tunnel Base in Nanchang, China
Publisher: ASCE
Abstract: Subway tunnels in Nanchang, China, may pass through one or several weathered argillaceous siltstones in the construction process. To reveal the influence of weathered argillaceous siltstone on the long-term settlement of ...