地铁隧道加测陀螺边最佳位置估算方案

Optimal Position Estimation Scheme for the Gyro Measurement of the Subway Tunnel

受地铁隧道特定环境的限制,地下控制测量一般采用导线测量方式,其横向贯通误差最难控制。为了确保贯通测量的质量,可以适当加测陀螺方位,而加测陀螺方位的最佳位置就涉及设计问题。利用严密函数式可以计算导线端点的点位误差以及计算加测若干条陀螺方位的导线终点误差,进而推导出陀螺方位的最佳位置,但这种方法比较复杂,计算工作量大、且十分繁琐。利用以计算机仿真计算为主的现代控制网优化设计可以快速、有效解决上述问题。

Restricted subway tunnel specific environment,Control measurements are generally only use underground wire measurement,laterally through are the most difficult to control. To ensure the quality through measurement can be appropriately GYRO orientation,The best place to GYRO orientation involves design problems. The point position error of the traverse point can be calculated by using the close function formula,and the end point error of the Gyro traverse is calculated and measured,Then the optimal position of gyro azimuth is derived,But this method is more complicated,and the calculation is very heavy and complicated. The optimization design of the modern control network based on the com-puter simulation can solve the above problems quickly and effectively.