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Solid Earth An interactive open-access journal of the European Geosciences Union

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doi:10.5194/sed-5-737-2013
© Author(s) 2013. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
03 Jun 2013
Review status
A revision of this discussion paper for further review has not been submitted.
Strength constraints of shallow crustal strata from analyses of mining induced seismicity
M. Alber1, R. Fritschen2, and M. Bischoff1,* 1Engineering Geology, Ruhr-University Bochum, Germany
2DMT GmbH & Co KG, Essen, Germany
*now at: BGR, Hannover, Germany
Abstract. Stress redistributions around large underground excavations such as coal mines may lead to failure of the surrounding rock mass. Some of these failure processes were recorded as seismic events. In this paper the different failure processes such as rock mass failure or the reactivation of faults are delineated from the seismic records. These are substantiated by rock mechanical analyses including laboratory strength tests on coal measure rocks obtained from underground drilling. Additionally, shear tests on discontinuities in coal measure rocks (slickensides in shale and rough sandstone joints) were conducted to grasp the possible variation of strength properties of faults. Numerical modeling was employed to evaluate the state of stress at the locations where seismic events did occur.

Citation: Alber, M., Fritschen, R., and Bischoff, M.: Strength constraints of shallow crustal strata from analyses of mining induced seismicity, Solid Earth Discuss., 5, 737-765, doi:10.5194/sed-5-737-2013, 2013.
M. Alber et al.
Interactive discussionStatus: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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RC C270: 'Referee Comment, Strength constraints of shallow crustal strata from analyses of mining induced seismicity, M. Alber et al.', Anonymous Referee #1, 28 Jun 2013 Printer-friendly Version 
 
RC C480: 'Anonymous referee #2', Anonymous Referee #2, 29 Aug 2013 Printer-friendly Version Supplement 
M. Alber et al.
M. Alber et al.

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