Accuracy Analysis of Automatic Gyroscope in Medium and Long Subway Tunnel Penetration
in view of the shortcomings of traditional connection survey and traverse survey in the penetration of medium and long-dis-tance subway tunnel, the full-automatic gyroscope orientation method is applied to the penetration of medium and long-distance sub-way tunnel. This paper briefly introduces the orientation principle of automatic gyroscope, and deduces in detail the process of gyro o-rientation participating in traverse network adjustment. Finally, taking a through section of Wuhan Metro Line 7 as an example, it is verified that the orientation accuracy of gyroscope is at the same level as that of precision traverse measurement. It proves the feasibili-ty and effectiveness of the full-automatic gyroscope in the penetration of medium and long-distance subway tunnel, and has a certain guiding significance for similar penetration projects.
medium and long distancetunnel penetrationfully automatic gyroscopeaccuracy analysis
万方数据
维普
