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在地下工程洞内导线测量中,加测陀螺定向边是消除角度误差的积累。在工程独立坐标系下,地面已知边精度已经确定、陀螺仪已经选定、作业人员已经固定情况下,文章提出了合理地选取地面已知边以减小△的影响,采用合理的计算方法提高γ的计算精度,既方便外业操作又简化了内业计算,保障了陀螺定向工作的可靠性。
In underground engineering inside the wire measurement, plus the gyroscope directional edge is to eliminate the accumulation of angle error. Under the independent coordinate system of the project, the accuracy of the known side of the ground has been determined, the gyroscope has been selected, and the operators have been fixed, the article proposes to select the known sides of the ground reasonably to reduce the influence of △, and a reasonable calculation method Increasing the calculation accuracy of γ can not only facilitate the field operation but also simplify the calculation of the field and ensure the reliability of the gyro-directional operation.