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| STUDY ON MEASURING METHOD AND ITS ACCURACY FOR EXTENSION AND PIERCING OF NEW AUXILIARY SHAFT IN FANKOU LEAD-ZINC MINE |
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Revised:August 19, 1999
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| KeyWord:Extension of new auxiliary shaft,Measurement for shaft piercing,Accuracy analysis, |
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| Abstract: |
| The measuring method and its accuracy analysis for extension and piercing of new auxiliary shaft in Fankou Lead Zinc Mine are mainly introduced in this paper. Taking correct and stable coordinates and elevations of the starting points as original data, the traverse measurement of coordinate, azimuth and elevation is carried out, thus ensuring the desired accuracy of measurement. At the same time, the accumulated error of traverse measurement is effectively controlled by use of a gyro orientation system. The above mentioned measures provide technical guarantee for the extension and accurately piercing of new auxiliary shaft. |
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