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Borehole radar measurements performed on preliminary investigation areas in Finland for final disposal of spent nuclear fuel

Technical Report:

Abstract

Borehole radar measurements with the RAMAC system have been performed in 24 boreholes distributed between the investigation areas Kuhmo Romuvaara, Hyrynsalmi Veitsivaara, Konginkangas Kivetty, Sievi Syyry, and Eurajoki Olkiluoto. The purpose of the borehole radar measurement program has been to investigate the bedrock in the vicinity of the boreholes in order to obtain information about geometry and extent of fracture zones, lithological contacts and other structures. The measurements have been performed as singlehole radar reflection measurements and Vertical Radar Profiling (VRP) measurements, using antennas with 22 MHz frequency range in both configurations. The total measured length in the singlehole radar reflection mode is 13304 meter and in the VRP mode 9200 meter. The VRP measurements are not presented in the report. Radar data from the singlehole reflection measurements are presented as grey scale radar maps after digital filtering with a bandpass filter and a moving average filter. Interpreted zones from the singlehole radar measurements are presented in tables for each borehole. It has been possible to study structures at distances of more than 110 meter from the borehole.
Authors:
Carlsten, S [1] 
  1. Swedish Geological Co., Uppsala (Sweden)
Publication Date:
May 01, 1991
Product Type:
Technical Report
Report Number:
YJT-91-14
Reference Number:
SCA: 052002; 540250; PA: AIX-23:007605; SN: 92000619550
Resource Relation:
Other Information: PBD: May 1991
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 54 ENVIRONMENTAL SCIENCES; RADIOACTIVE WASTE DISPOSAL; SITE SURVEYS; BOREHOLES; FINLAND; FRACTURES; RADAR; UNDERGROUND DISPOSAL; 052002; 540250; WASTE DISPOSAL AND STORAGE; SITE RESOURCE AND USE STUDIES
OSTI ID:
10104098
Research Organizations:
Voimayhtioeiden Ydinjaetetoimikunta, Helsinki (Finland)
Country of Origin:
Finland
Language:
English
Other Identifying Numbers:
Other: ON: DE92612735; TRN: FI9100127007605
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
FIN
Size:
128 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Carlsten, S. Borehole radar measurements performed on preliminary investigation areas in Finland for final disposal of spent nuclear fuel. Finland: N. p., 1991. Web.
Carlsten, S. Borehole radar measurements performed on preliminary investigation areas in Finland for final disposal of spent nuclear fuel. Finland.
Carlsten, S. 1991. "Borehole radar measurements performed on preliminary investigation areas in Finland for final disposal of spent nuclear fuel." Finland.
@misc{etde_10104098,
title = {Borehole radar measurements performed on preliminary investigation areas in Finland for final disposal of spent nuclear fuel}
author = {Carlsten, S}
abstractNote = {Borehole radar measurements with the RAMAC system have been performed in 24 boreholes distributed between the investigation areas Kuhmo Romuvaara, Hyrynsalmi Veitsivaara, Konginkangas Kivetty, Sievi Syyry, and Eurajoki Olkiluoto. The purpose of the borehole radar measurement program has been to investigate the bedrock in the vicinity of the boreholes in order to obtain information about geometry and extent of fracture zones, lithological contacts and other structures. The measurements have been performed as singlehole radar reflection measurements and Vertical Radar Profiling (VRP) measurements, using antennas with 22 MHz frequency range in both configurations. The total measured length in the singlehole radar reflection mode is 13304 meter and in the VRP mode 9200 meter. The VRP measurements are not presented in the report. Radar data from the singlehole reflection measurements are presented as grey scale radar maps after digital filtering with a bandpass filter and a moving average filter. Interpreted zones from the singlehole radar measurements are presented in tables for each borehole. It has been possible to study structures at distances of more than 110 meter from the borehole.}
place = {Finland}
year = {1991}
month = {May}
}