Method for wiring gyro azimuth edge of underground conducting wire

• Main Authors: DUAN TAISHENG, LI XUESHI
• Format: Patent
• Language: Chinese; English
• Published: 06.01.2010
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The invention discloses a method for wiring a gyro azimuth edge of an underground conducting wire. The necessity whether a gyro azimuth is additionally measured or not is determined by calculating a minimum necessary length Smin required by the underground conducting wire with an additionally measured gyro azimuth, and the length of the conducting wire is determined by calculating the maximal limit length Smax of the underground conducting wire with the additionally measured gyro azimuth, thus the maximal effect of additionally measuring the gyro azimuth can be effectively played. The invention also provides a method for determining the reasonable quantity of additionally measured gyro azimuth edges for a longer tunnel. The method guarantees that a transverse error of a conducting wire terminal point meets the requirement of a tunnel through error by calculating a horizontal ordinate error of the conducting wire terminal point which is also a gyro azimuth edge terminal point and changing relative parameters.