RMR in Urban Tunnel with Risk Factor of Collapse

Jang, Hyong Doo; Yang, H.

Access Status

Fulltext not available

Authors

Jang, Hyong Doo

Yang, H.

Date

2010

Type

Conference Paper

Metadata

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Citation

Jang, H.D. and Yang, H. 2010. RMR in Urban Tunnel with Risk Factor of Collapse, in Proceedings of the Korean Society for Rock Mechanics Conference, Oct 21 2010. Korean Society for Rock Mechanics.

Source Conference

Proceedings of the Korean Society for Rock Mechanics Conference

Additional URLs

http://www.ksrm.or.kr/html/

Faculty

Faculty of Science and Engineering

School

WASM: Minerals, Energy and Chemical Engineering

URI

http://hdl.handle.net/20.500.11937/80573

Collection

Curtin Research Publications

Abstract

RMR is a largely accepted rock classification method for design of support system in domestic tunnels. However, the RMR system, which is based on geological survey during design stage of tunnel, can not present the real ground conditions accurately. In this study, authors suggests a concept of Weighted-RMR (W-RMR), which considers weighted value of risk factors of collapse to prevent collapse and roof falls during tunneling. By implementing of W-RMR to Bye-Gye tunnel, the support and design flexibility is entailed giving due cognizance to the structural and geological features of the upper part of tunnel face.