DBPapers
DOI: 10.5593/sgem2012/s07.v2016

GYROTHEODOLITE ZERO TORSION POSITION AND ITS EFFECT ON AZIMUTH PINPOINT DURING THE CONNECTING SURVEYS AND ORIENTATION MEASUREMENTS

J. MUCKOVA, P. CERNOTA, P. BARTAK
Wednesday 1 August 2012 by Libadmin2012

References: 12th International Multidisciplinary Scientific GeoConference, www.sgem.org, SGEM2012 Conference Proceedings/ ISSN 1314-2704, June 17-23, 2012, Vol. 2, 787 - 794 pp

ABSTRACT

Connecting surveys and orientation measurements in the sphere of mining survey serves
for transmitting the valid coordination system underground. One of connecting surveys
and orientation measurements methods applies basic orientation directions for the
orientation in gyrotheodolite underground, which used to be applied for determining the
natural direction, while subsequently it is transformed to the geodetic bearing. Since we
are determining the basic orientation direction, which subsequently becomes a base for
measurements done in given mine horizon, it is necessary to identify the initial direction
as accurately as possible. Correction from the zero torsion position represents one of
corrections, which must be done within the orientation measurements and must be
implemented into measuring results. Paper is dedicated to correction changes from zero
torsion position, applying results of orientation measurements being done in Ostrava-
Karviná Coal District, CZE (hereinafter OKR only).

Keywords: Connecting surveys and orientation measurements, azimuth, gyrotheodolite,
zero torsion position of the sensor