3D numerical modelling of shallow tunnel in weathered granite incorporating multi-stage excavation and pre-support

Generally tunnelling in urban ground condition is not always favourable due to the tunnels� susceptibility to major displacement especially when excavated in the soft soil and/or weak weathered rock formation. Apart from conventional support systems, pre-support measure like forepoling umbrella ar...

Full description

Main Authors: Yahya, S.M., Abdullah, R.A., Mohamad Ismail, M.A., Mohamad, H., Hezmi, M.A., Jusoh, S.N.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.25484 /
Published: Penerbit UTM Press 2016
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84988431933&doi=10.11113%2fjt.v78.9637&partnerID=40&md5=170fdebb445335767a785eb24371cdd8
http://eprints.utp.edu.my/25484/
Tags: Add Tag
No Tags, Be the first to tag this record!
id utp-eprints.25484
recordtype eprints
spelling utp-eprints.254842021-08-27T13:02:06Z 3D numerical modelling of shallow tunnel in weathered granite incorporating multi-stage excavation and pre-support Yahya, S.M. Abdullah, R.A. Mohamad Ismail, M.A. Mohamad, H. Hezmi, M.A. Jusoh, S.N. Generally tunnelling in urban ground condition is not always favourable due to the tunnels� susceptibility to major displacement especially when excavated in the soft soil and/or weak weathered rock formation. Apart from conventional support systems, pre-support measure like forepoling umbrella arch is frequently used to reinforce the ground. Modern computational tools allows the inclusion of multi-stage excavations and pre-support which was not possible in two dimensional (2D) plane strain. This paper demonstrates the three dimensional (3D) finite element analysis of Pahang-Selangor raw water transfer tunnel, as a reference case, where multi-stage excavation and pre-support are incorporated as intrinsic part of the model. The New Austrian Tunnelling Method (NATM)-3 segments which encountered Grade III weathered granite, having shallow overburden cover, was selected for numerical analysis using RS3 software. Comparison between simulated and observed data has shown good agreement during verification. © 2016 Penerbit UTM Press. All rights reserved. Penerbit UTM Press 2016 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-84988431933&doi=10.11113%2fjt.v78.9637&partnerID=40&md5=170fdebb445335767a785eb24371cdd8 Yahya, S.M. and Abdullah, R.A. and Mohamad Ismail, M.A. and Mohamad, H. and Hezmi, M.A. and Jusoh, S.N. (2016) 3D numerical modelling of shallow tunnel in weathered granite incorporating multi-stage excavation and pre-support. Jurnal Teknologi, 78 (8-6). pp. 39-44. http://eprints.utp.edu.my/25484/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Generally tunnelling in urban ground condition is not always favourable due to the tunnels� susceptibility to major displacement especially when excavated in the soft soil and/or weak weathered rock formation. Apart from conventional support systems, pre-support measure like forepoling umbrella arch is frequently used to reinforce the ground. Modern computational tools allows the inclusion of multi-stage excavations and pre-support which was not possible in two dimensional (2D) plane strain. This paper demonstrates the three dimensional (3D) finite element analysis of Pahang-Selangor raw water transfer tunnel, as a reference case, where multi-stage excavation and pre-support are incorporated as intrinsic part of the model. The New Austrian Tunnelling Method (NATM)-3 segments which encountered Grade III weathered granite, having shallow overburden cover, was selected for numerical analysis using RS3 software. Comparison between simulated and observed data has shown good agreement during verification. © 2016 Penerbit UTM Press. All rights reserved.
format Article
author Yahya, S.M.
Abdullah, R.A.
Mohamad Ismail, M.A.
Mohamad, H.
Hezmi, M.A.
Jusoh, S.N.
spellingShingle Yahya, S.M.
Abdullah, R.A.
Mohamad Ismail, M.A.
Mohamad, H.
Hezmi, M.A.
Jusoh, S.N.
3D numerical modelling of shallow tunnel in weathered granite incorporating multi-stage excavation and pre-support
author_sort Yahya, S.M.
title 3D numerical modelling of shallow tunnel in weathered granite incorporating multi-stage excavation and pre-support
title_short 3D numerical modelling of shallow tunnel in weathered granite incorporating multi-stage excavation and pre-support
title_full 3D numerical modelling of shallow tunnel in weathered granite incorporating multi-stage excavation and pre-support
title_fullStr 3D numerical modelling of shallow tunnel in weathered granite incorporating multi-stage excavation and pre-support
title_full_unstemmed 3D numerical modelling of shallow tunnel in weathered granite incorporating multi-stage excavation and pre-support
title_sort 3d numerical modelling of shallow tunnel in weathered granite incorporating multi-stage excavation and pre-support
publisher Penerbit UTM Press
publishDate 2016
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84988431933&doi=10.11113%2fjt.v78.9637&partnerID=40&md5=170fdebb445335767a785eb24371cdd8
http://eprints.utp.edu.my/25484/
_version_ 1741196982436757504
score 11.62408

Similar Items