New Rock Stress Data from Finland Related to the Update of World Stress Map

Topias Siren, Juha Pennala, Mikael Rinne

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Directions and magnitudes of in situ rock stress field is crucial information for rock engineering and mine design. The Fennoscandian Rock Stress Database was initiated in 1986 to provide a collection of rock stress measurements for Finland, Norway and Sweden. Later it was expanded to include rock stress data for whole world, thus named World Stress Map (WSM). As part of more extensive update of the WSM, the rock stress data from Finland is updated after the previous update in year 1999, with results of the work presented in this paper. In the project ca. 1300 new measurement results were found and included in the database, including also some complementary data before year 1999. Most of the rock stress data is from shallow hydraulic fracturing (HF) measurements. Based on the quality classification the shallow HF measurements usually have low quality. After the last update in 1999 a new LVDT cell stress measurement method was developed providing a significant set of high quality data to the new update. The Finnish data will also be included to new Quantatitive World Stress Map database, under development.
Original languageEnglish
Title of host publication3rd Nordic Rock Mechanics Symposium NRMS 2017
Subtitle of host publicationSymposium Proceedings
EditorsErik Johansson, Ville Raasakka
PublisherSuomen Rakennusinsinöörien liitto
Number of pages4
ISBN (Print)978-951-758-622-1
Publication statusPublished - 11 Oct 2017
MoE publication typeA4 Article in a conference publication
EventNordic Rock Mechanics Symposium - Helsinki, Finland
Duration: 11 Oct 201712 Oct 2017
Conference number: 3

Publication series

PublisherSuomen rakennusinsinöörien liitto RIL
ISSN (Electronic)0356-9403


ConferenceNordic Rock Mechanics Symposium
Abbreviated titleNRMS


  • World Stress Map
  • Data compilation
  • In situ rock stress
  • Stress Measurement


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