KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
권호 표지

A Study on Engineering Characteristics of Weak Rock Ground Happened TBM Jamming Accident in Tunnelling

TBM 터널 굴진시 Jamming이 발생되는 지반의 공학적 특성에 대한 연구

Yoo, Kil-Hwan;Chung, Sung-Gyo;Hwang, Dae-Young
유길환;정성교;황대영

  • Published : 20071100

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Abstract

Mechanized tunnelling by TBMs has been extensively adopted for last two decades. Nevertheless, only few case histories have been reported. Unlike NATM tunnels, the case histories of the weak zone have been seldom reported for the mechanized tunnelling, even in the other countries. In this study, a collapse of TBM tunnel occurred in the severely altered weak rock zones between volcaniclastic rocks and granitic rocks was briefly described. A systematic geotechnical investigation, which was performed to examine the cause of the collapse, was carried out at the site and then characteristics of the rocks in the zones were evaluated. Moreover, This study propose a guide line of estimateing the possibility of collapse in TBM tunnels through comparing experimental results with surveying results of general rocks.

Keywords

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