Updated in situ rock stresses in Norway based on recent estimations and measurements
This paper presents the current in situ rock stresses in Norway. Information about the stress state was obtained by estimations from focal mechanism, borehole breakout and drilling-induced fractures, and via overcoring and hydraulic fracturing measurements. A N–S and a WNW–ESE major horizontal stres...
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2825594 2023-05-15T16:12:57+02:00 Updated in situ rock stresses in Norway based on recent estimations and measurements Simonsen, Aurora Li, Charlie Chunlin 2019 application/pdf https://hdl.handle.net/11250/2825594 https://doi.org/10.1201/9780367823177 eng eng CRC Press Rock Mechanics for Natural Resources and Infrastructure Development urn:isbn:978-0-367-42284-4 https://hdl.handle.net/11250/2825594 https://doi.org/10.1201/9780367823177 cristin:1759085 This is an Accepted Manuscript of a book chapter published by Routledge/CRC Press. 1543-1550 Chapter 2019 ftntnutrondheimi https://doi.org/10.1201/9780367823177 2021-11-03T23:36:33Z This paper presents the current in situ rock stresses in Norway. Information about the stress state was obtained by estimations from focal mechanism, borehole breakout and drilling-induced fractures, and via overcoring and hydraulic fracturing measurements. A N–S and a WNW–ESE major horizontal stress orientations dominated the estimation data from offshore Norway and western, mid and eastern Norway. This is consistent with the ridge push effect from the mid-Atlantic ridge. The measurement data from onshore Norway had scattered orientations, probably caused by local factors like topography. The major horizontal stress generally exceeded the vertical stress in the Norwegian region with an average ratio of 1.2. The stress gradients appeared to decrease with increasing overburden. The influence of topography on the principal stresses seemed to decrease inwards the rock mass. It is intended to update the Fennoscandian in situ rock stress database with the data collected. acceptedVersion Book Part Fennoscandian NTNU Open Archive (Norwegian University of Science and Technology) Mid-Atlantic Ridge Norway |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
This paper presents the current in situ rock stresses in Norway. Information about the stress state was obtained by estimations from focal mechanism, borehole breakout and drilling-induced fractures, and via overcoring and hydraulic fracturing measurements. A N–S and a WNW–ESE major horizontal stress orientations dominated the estimation data from offshore Norway and western, mid and eastern Norway. This is consistent with the ridge push effect from the mid-Atlantic ridge. The measurement data from onshore Norway had scattered orientations, probably caused by local factors like topography. The major horizontal stress generally exceeded the vertical stress in the Norwegian region with an average ratio of 1.2. The stress gradients appeared to decrease with increasing overburden. The influence of topography on the principal stresses seemed to decrease inwards the rock mass. It is intended to update the Fennoscandian in situ rock stress database with the data collected. acceptedVersion |
format |
Book Part |
author |
Simonsen, Aurora Li, Charlie Chunlin |
spellingShingle |
Simonsen, Aurora Li, Charlie Chunlin Updated in situ rock stresses in Norway based on recent estimations and measurements |
author_facet |
Simonsen, Aurora Li, Charlie Chunlin |
author_sort |
Simonsen, Aurora |
title |
Updated in situ rock stresses in Norway based on recent estimations and measurements |
title_short |
Updated in situ rock stresses in Norway based on recent estimations and measurements |
title_full |
Updated in situ rock stresses in Norway based on recent estimations and measurements |
title_fullStr |
Updated in situ rock stresses in Norway based on recent estimations and measurements |
title_full_unstemmed |
Updated in situ rock stresses in Norway based on recent estimations and measurements |
title_sort |
updated in situ rock stresses in norway based on recent estimations and measurements |
publisher |
CRC Press |
publishDate |
2019 |
url |
https://hdl.handle.net/11250/2825594 https://doi.org/10.1201/9780367823177 |
geographic |
Mid-Atlantic Ridge Norway |
geographic_facet |
Mid-Atlantic Ridge Norway |
genre |
Fennoscandian |
genre_facet |
Fennoscandian |
op_source |
1543-1550 |
op_relation |
Rock Mechanics for Natural Resources and Infrastructure Development urn:isbn:978-0-367-42284-4 https://hdl.handle.net/11250/2825594 https://doi.org/10.1201/9780367823177 cristin:1759085 |
op_rights |
This is an Accepted Manuscript of a book chapter published by Routledge/CRC Press. |
op_doi |
https://doi.org/10.1201/9780367823177 |
_version_ |
1765998554395967488 |