The Effects of the Structure--Foundation Interaction in the Structural Response of a TBM Gallery
The Effects of the Structure--Foundation Interaction in the Structural Response of a TBM Gallery作者机构:Civil Engineering Department & PROMAS I+ D+ I Research Center University of Cuenca Ecuador Department of Hydrotechnics Engineering Technical University of Civil Engineering Bucharest 020396 Romania
出 版 物:《Journal of Geological Resource and Engineering》 (地质资源与工程(英文版))
年 卷 期:2016年第4卷第3期
页 面:97-104页
学科分类:07[理学]
主 题:Circular gallery (tunnel) interaction structural analysis finite element method (FEM).
摘 要:The effects of the interaction between a gallery lining and surrounding ground are evaluated. The gallery is circular with constant thickness and surrounding ground as geotechnical characteristics is soft one. Two types of ground are successively considered with bulk modulus K = 9,260 kPa and K = 4,630 kPa. The analysis is carried out for a gallery with 3.80 m inner diameter and 25 cm thickness. This under construction is part of the irrigation system of the "Los Rios" county (Ecuador). Comprehensive computations in various hypotheses pointed out the significant effects of the interaction. The sectional stresses (M, N) in the gallery lining embedded in soft ground depend mainly of the gallery depth versus ground surface. Contrary, the mechanical characteristics of the surrounding ground resulted to have little influence.