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  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
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ISSN : 2233-8292

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Vol.10 No.4

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터널 선행변위를 활용한 한계변형률 개념의 적용 연구

A study on the application of the critical strain concept by using the displacements occurring before excavation in tunneling

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2008, v.10 no.4, pp.337-348
박시현 (한국시설안전기술공단)
박시현. (2008). 터널 선행변위를 활용한 한계변형률 개념의 적용 연구. (사)한국터널지하공간학회, 10(4), 337-348.

Abstract

Critical strain is a new material property of the ground. Critical strain concept which was established in tunnel engineering can be applied to deformation limits in the ground due to tunneling by using the measured displacement at the tunnel construction site. In this study, quantitative evaluations for the tunnel stability are conducted by analysing the displacement results obtained at the construction field. Especially, critical stain concept was reviewed from a total displacement point of view using the displacements occurring before excavation. As a results, the variation characteristics of the tunnel stability are presented on the critical strain diagram with or without the preceeding displacements.

keywords
Critical strain, tunnel stability, preceeding displacements, measured displacements, 한계변형률, 터널안정성, 선행변위, 계측변위

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