Analysis of Seismic Behavior of Cut and Cover Tunnel according to backfill materials

World widely, the occurrences of earthquakes have been increased recently including to nations which earthquake often happen to like Japan. Taking into account that the earthquake acceleration at design was 0.154 g at the contigency level earthuake (CLE) with its geological condition, it resulted that this method must be the most efficient condition against the earthquake vibration to two lane cut-and cover tunnel. The correlations between the result of the shaking table test and its numerical analysis showed that the test data of the bending stress due to the earthquake vibration have been underestimated about 5 percents in case of the cut slope 1 : 0.6 and about 10 percent in case of the cut slope 1 : 1.2. However, on average, the results showed a similar tendency that the higher the height of the backfill of the EPS block was, the less the bending stress was.

keywords: 개착식터널, 진동대 시험, 수치해석 분석, cut-and-cover tunnel, shaking table test, numerical analysis, cut-and-cover tunnel, shaking table test, numerical analysis

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Article Contents

Vol.7 No.2

Analysis of Seismic Behavior of Cut and Cover Tunnel according to backfill materials

Abstract

Reference

(사)한국터널지하공간학회