Published July 1985 | Version v1
Report Restricted

Crosshole seismic investigations in Olkiluoto 1984-1985

  • 1. Geoseismo Oy, Helsinki (Finland)

Description

The following report presents the results of the crosshole seismic investigations carried out at the Olkiluoto Power Plant area on the Ulkopaeae peninsula. The works were carried out between six boreholes and a total of five profiles were investigated. The velocity distribution of longitudinal P-waves between the boreholes was computed by tomography processing. Also some arrival times of S-waves were picked up for determining the dynamic elastic constants in-situ. The position of the contact between the dominating rock types, micagneiss and tonalite, was estimated. Some previous investigation results are reviewed to obtain a general view of the geology of the test area. The principle of the crosshole seismic method is also shortly described

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MF available from INIS under the Report Number.

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Additional details

Publishing Information

Imprint Pagination
43 p.
Report number
YJT--85-35

INIS

Country of Publication
Finland
Country of Input or Organization
Finland
INIS RN
17031463
Subject category
S58: GEOSCIENCES;
Descriptors DEI
BOREHOLES; GEOLOGY; REGIONAL ANALYSIS; ROCKS; SEISMIC P WAVES; SEISMIC S WAVES; SEISMIC SURVEYS; TOMOGRAPHY
Descriptors DEC
CAVITIES; DIAGNOSTIC TECHNIQUES; GEOLOGIC SURVEYS; SEISMIC WAVES