Back-analysing rock mass modulus from monitoring data of two tunnels in Sydney, Australia

This paper presents two case studies where the rock mass modulus and in situ stress are estimated from the monitoring data obtained during the construction of underground excavations in Sydney, Australia. The case studies comprise the widening of existing twin road tunnels within Hawkesbury sandston...

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Main Author: Robert Bertuzzi
Format: Article
Language:English
Published: Elsevier 2017-10-01
Series:Journal of Rock Mechanics and Geotechnical Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1674775516302104
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author Robert Bertuzzi
author_facet Robert Bertuzzi
author_sort Robert Bertuzzi
collection DOAJ
description This paper presents two case studies where the rock mass modulus and in situ stress are estimated from the monitoring data obtained during the construction of underground excavations in Sydney, Australia. The case studies comprise the widening of existing twin road tunnels within Hawkesbury sandstone and the excavation of a large cavern within Ashfield shale. While back-analysis from detailed systematic monitoring has been previously published, this paper presents a relatively simple methodology to derive rock mass modulus and in situ stress from the relatively simple displacement data routinely recorded during tunnelling.
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spelling doaj.art-12c2e69c45d548f3b1b4d3cce5bb60f22022-12-22T00:32:29ZengElsevierJournal of Rock Mechanics and Geotechnical Engineering1674-77552017-10-019587789110.1016/j.jrmge.2017.05.005Back-analysing rock mass modulus from monitoring data of two tunnels in Sydney, AustraliaRobert Bertuzzi0Pells Sullivan Meynink, North Ryde, NSW 2113, AustraliaThis paper presents two case studies where the rock mass modulus and in situ stress are estimated from the monitoring data obtained during the construction of underground excavations in Sydney, Australia. The case studies comprise the widening of existing twin road tunnels within Hawkesbury sandstone and the excavation of a large cavern within Ashfield shale. While back-analysis from detailed systematic monitoring has been previously published, this paper presents a relatively simple methodology to derive rock mass modulus and in situ stress from the relatively simple displacement data routinely recorded during tunnelling.http://www.sciencedirect.com/science/article/pii/S1674775516302104Back-analysisRock mass modulusIn situ stressSydney tunnels
spellingShingle Robert Bertuzzi
Back-analysing rock mass modulus from monitoring data of two tunnels in Sydney, Australia
Journal of Rock Mechanics and Geotechnical Engineering
Back-analysis
Rock mass modulus
In situ stress
Sydney tunnels
title Back-analysing rock mass modulus from monitoring data of two tunnels in Sydney, Australia
title_full Back-analysing rock mass modulus from monitoring data of two tunnels in Sydney, Australia
title_fullStr Back-analysing rock mass modulus from monitoring data of two tunnels in Sydney, Australia
title_full_unstemmed Back-analysing rock mass modulus from monitoring data of two tunnels in Sydney, Australia
title_short Back-analysing rock mass modulus from monitoring data of two tunnels in Sydney, Australia
title_sort back analysing rock mass modulus from monitoring data of two tunnels in sydney australia
topic Back-analysis
Rock mass modulus
In situ stress
Sydney tunnels
url http://www.sciencedirect.com/science/article/pii/S1674775516302104
work_keys_str_mv AT robertbertuzzi backanalysingrockmassmodulusfrommonitoringdataoftwotunnelsinsydneyaustralia