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http://dx.doi.org/10.12652/Ksce.2014.34.1.0175

Response Analysis of Block-Bearing Structure due to Tunnel Excavation in Clay Ground  

Son, Moorak (Daegu University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.34, no.1, 2014 , pp. 175-183 More about this Journal
Abstract
This study investigates the response of structures to tunnelling-induced ground movements in clay ground, varying tunnel excavation condition (tunnel depth and diameter), tunnel construction condition (ground loss), and tunnel ground condition (soft clay and stiff clay). Four-story block-bearing structures have been used because the structures can easily be characterized of the extent of damages with crack size and distribution. Numerical parametric studies have been used to investigate of the response of structures to varying tunnelling conditions. Numerical analysis has been conducted using Discrete Element Method (DEM) to have real cracks when the shear and tensile stress exceed the maximum shear and tensile strength. The results of structure responses from various parametric studies have been integrated to consider tunnel excavation condition, tunnel construction condition, and tunnel ground condition and provide a relationship chart among them. Using the chart, the response of structures to tunnelling can easily be evaluated in practice in clay ground.
Keywords
Clay ground; Tunnel excavation; Ground loss; Block-bearing structure; Damage estimation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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