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Metadata Files

Data Publication

Ultrasonic transmission measurements from seven boreholes from the STIMTEC-X experiment, Reiche Zeche Mine, Freiberg (Saxony, Germany)

Boese, Carolin M. | Kwiatek, Grzegorz | Fischer, Thomas | Plenkers, Katrin | Dresen, Georg

GFZ Data Services

(2022)

Descriptions

In 2020 and 2021 the STIMTEC-X hydraulic stimulation experiment was performed at ca.~130 m below surface at the Reiche Zeche underground research laboratory in Freiberg, Saxony/Germany. The project temporally followed the STIMTEC experiment at the same site and aimed at understanding the stress heterogeneity of the anisotropic and metamorphic gneiss rock mass. The STIMTEC-X experiment applied the hydraulic stimulation technique in several boreholes at the mine-scale. Complementary to the stimulations, there were active seismic ultrasonic transmission data acquired before the stimulations. We use a seismic monitoring network consisting of six single-component acoustic emission (AE) sensors (sensitivity 1-60 kHz), six hydrophone-like AE sensors (sensitivity 1-40 kHz) and four to twelve single-component Wilcoxon accelerometers (sensitivity 50 Hz-25 kHz). The AE sensors and remained stationary in sub-horizontal and upwards reaching boreholes, the accelerometers were mostly installed along the tunnel walls with one accelerometer in a shallow borehole in each tunnel, and the hydrophone-like AE sensors were installed in the down-going water filled boreholes, but repositioned for each measurement campaign (Figure 1). This data set of 120 active ultrasonic transmission (UT) measurements is supplementary to Boese et al. (2022, in review), which introduces some of the active measurement campaigns of the STIMTEC-X experiment in detail. The whole data set togetter with the “Ultrasonic transmission measurements from six boreholes from the STIMTEC experiment, Reiche Zeche Mine, Freiberg (Saxony, Germany)” [https://doi.org/10.5880/GFZ.4.2.2021.002] was used to evaluate performance measures such as sensitivity and frequency bandwith, coupling, placement and polarity of the hydrophone-like AE sensor compared to AE sensors. The active seismic data provided here are from seven boreholes (BH01, BH05, BH06, BH10, BH14, BH18, BH19) as shown in Figure 1. There are nine tables provided as metadata of which seven contain the STIMTEC-X sensor coordinates for each measurement campaign, the event information of all the 120 UT measurements and the UT picks. The UT measurements were recorded with a sampling rate of 1 MHz and results from an automatic stack of 1024 UT pulses generated by the ultrasonic transmitter and recorded by the STIMTEC-X sensors. The UT measurements are saved in binary file format (fsf file format). Fsf-files can be processed with FOCI software: https://www.induced.pl/software/foci. Each fsf file contains 32768 samples, which corresponds to 0.032768 seconds. All UT event files were manual inspected and phase arrivals identified. These are stored in the fsf-file header as well as in the table STIMTECX_UT_picks.csv.

Keywords


Originally assigned keywords
Ultrasonic transmission
Acoustic emission sensor
velocity calibration
EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES > SEISMIC PROFILE > SEISMIC BODY WAVES
In Situ/Laboratory Instruments > Magnetic/Motion Sensors > Accelerometers > ACCELEROMETERS

MSL enriched keywords
Ancillary equipment
acoustic measurement - active source
ultrasonic imaging equipment
Ancillary equipment
model structure monitoring (3D)
acoustic measurement - active source
ultrasonic imaging equipment
metamorphic rock
gneiss
accelerometer
Measured property
acoustic emission (AE)
accelerometer
Measured property
acoustic emission (AE)
civil engineered setting
tunnel
Facility types
field-scale observatory - passive monitoring
Equipment
seismic monitoring

MSL enriched sub domains i

rock and melt physics
analogue modelling of geologic processes
geo-energy test beds

Source

https://dataservices.gfz-potsdam.de/panmetaworks/showshort.php?id=2b44614a-ba71-11ec-a8b4-7d2338b1cdf0

Source publisher

GFZ Data Services


DOI

10.5880/gfz.4.2.2022.002


Creators

Boese, Carolin M.

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-2383-2219

Kwiatek, Grzegorz

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1076-615X

Fischer, Thomas

GmuG mbH Bad Nauheim, Bad Nauheim, Germany

Plenkers, Katrin

SCCER-SoE ETH Zurich, Zurich, Switzerland

ORCID:

https://orcid.org/0000-0002-7739-2554

Dresen, Georg

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-3737-2858


Contributors

Boese, Carolin M.

ContactPerson

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-2383-2219

Boese, Carolin M.

ProjectMember

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-2383-2219

Kwiatek, Grzegorz

ProjectMember

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1076-615X

Fischer, Thomas

ProjectMember

GmuG mbH Bad Nauheim, Bad Nauheim, Germany

Plenkers, Katrin

DataCollector

SCCER-SoE ETH Zurich, Zurich, Switzerland

ORCID:

https://orcid.org/0000-0002-7739-2554

Plenkers, Katrin

ProjectMember

SCCER-SoE ETH Zurich, Zurich, Switzerland

ORCID:

https://orcid.org/0000-0002-7739-2554

Dresen, Georg

ProjectMember

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-3737-2858

Boese, Carolin M.

ContactPerson

GFZ German Research Centre for Geosciences, Potsdam, Germany

Boese, Carolin M.

ContactPerson

GFZ German Research Centre for Geosciences, Potsdam, Germany


References

https://www.induced.pl/software/foci

10.5880/gfz.4.2.2021.002

10.1007/s00603-023-03418-9


Citation

Boese, C. M., Kwiatek, G., Fischer, T., Plenkers, K., & Dresen, G. (2022). Ultrasonic transmission measurements from seven boreholes from the STIMTEC-X experiment, Reiche Zeche Mine, Freiberg (Saxony, Germany) [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.4.2.2022.002


Dates

Collected:

2018-06-29/2019-12-05

Issued:

2022


Funding References

Funder name: Bundesministerium für Bildung und Forschung

Funder identifier: https://doi.org/10.13039/501100002347

Funder identifier type: Crossref Funder ID

Award number: 03G0874C

Award title: Verbundvorhaben STIMTEC

Funder name: Bundesministerium für Bildung und Forschung

Funder identifier: https://doi.org/10.13039/501100002347

Funder identifier type: Crossref Funder ID

Award number: 03G0901C

Award title: Verbundvorhaben STIMTECX


Rights

Creative Commons Attribution 4.0 International


Geo location(s)

STIMTEC underground research lab, 2nd floor Reiche Zeche Mine, Freiberg, saxony, Germany


Spatial coordinates