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Tunneling-induced Building Damage Risk Assessment System  

Park, Yong-Won (Member, Professor, Dept. of Civil & Environmental Engrg., Myongji Univ.)
Yoon, Hyo-Seok (Member, Ph.D. Student, Dept. of Civil & Environmental Engrg., Myongji Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.18, no.3, 2002 , pp. 51-59 More about this Journal
Abstract
This paper deals with development of a damage risk assessment system for adjacent buildings to under-passing tunnel face considering 3D-ground movement. The system consists of building and ground information module, monitoring data module, settlement evaluation module, and building damage risk assessment module. The major modules, settlement evaluation module and building damage assessment module, are based on settlement estimation model suggested by Attewell et al (1982) and the building damage assessment method by Mair et al. (1996). After estimating 3D-ground movements due to tunneling with settlement evaluation module, damage assessment far buildings is performed using building damage risk assessment module. The developed system has two major functions; 1) calculation of 3D-settlement with ground loss ($V_{s}$)or maximum settlement ($w_{max}$) and inflection point (i) using various empirical formulae, monitoring data, numerical results, and so on; 2) assessment of damage risk for adjacent buildings of arbitrary section with position change of tunnel face. The field data given by Boscadin and Cording (1989) leer the case of two-storied masonry building near the Metro tunnel in Washington D.C. was simulated to verify the applicability of the developed system.
Keywords
Building damage; Ground movement; Risk assessment; Settlement; Three dimensional; Tunneling;
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