Abstract:

This thesis points out the urgency of the - 230 large-scale meeting head-on project in Linglong Gold Mine. Int roduces in detail a kind of survey scheme-additnonal surveying of gyrocompassing side in t raversing , as well as discrepancy estimation for the survey scheme. Through explainaiton of the discrepancy estimation ,proves feasibility and superiority of the survey scheme. And also describes the implemtation and achivements of the meeting head-on project under the guidance of the scheme ,stressing the importance of additional surveying of gyrocompassing side in traversing in the large-scale meeting head-on project of mine.

Key words: additional surveying gyrocompassing side, discrepancy estimation, implementation of meeting head-on