Determination of K values from tunnel model tests in sandy ground

This study mainly focused on the subsurface settlement due to shallow and deep tunneling in sandy ground. In order to figure out theoretical deformation patterns in association with the ground loss during the progress of tunneling, laboratory model tests using aluminum rods and finite element analyses using the CRISP program were carried out. As a result of comparison between the model test and the finite element analysis, the similar deformation patterns were found. In addition, it was identified that the most K values obtained from both the FEA and the model tests were distributed between Dyer et al. (1996) and Moh et al. (1996) of the field observation data. Based on the model test data, the linear equation of K for the sandy soil could be obtained.

keywords: 지중침하, 터널모형 실험, 연약지반, 유한요소해석, K값, Subsurface settlement, model tunnel tests, soft ground, finite element analysis, K values

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Article Contents

Vol.12 No.1

Determination of K values from tunnel model tests in sandy ground

Abstract

Reference

(사)한국터널지하공간학회