Surface settlement caused by twin-parallel shield tunnelling in sandy cobble strata

• Published in: Journal of Zhejiang University. A. Science Vol. 13; no. 11; pp. 858 - 869
• Main Authors: He, Chuan, Feng, Kun, Fang, Yong, Jiang, Ying-chao
• Format: Journal Article
• Language: English
• Published: Heidelberg SP Zhejiang University Press 01.11.2012
• Subjects: Civil Engineering; Classical and Continuum Physics; Construction; Engineering; Grounds; Industrial Chemistry/Chemical Engineering; Mechanical Engineering; Metros; Settlements; Shields; Strata; Subway tunnels; Subways; Tunneling; 地表变形; 地表沉降; 地铁1号线; 平行隧道; 沉降曲线; 盾构隧道施工; 砂卵石地层; 离散单元法; Ground loss; Field test; Twin-parallel shield tunneling; U45; Discrete element method (DEM); Surface settlement; Model test
• ISSN: 1673-565X; 1862-1775
• DOI: 10.1631/jzus.A12ISGT6

City metro tunnels are usually constructed as twin-parallel tunnels and their adjacent construction may lead to surface deformation,affecting the surface environment and the safety of the tunnels.Due to its strong dispersion,sandy cobble strata can be easily disturbed by shield tunneling.Based on th...