大型矿井巷道贯通测量方法与误差分析

摘要

In order to improve the accuracy and reliability of the through survey tor a mine roadway, a rational survey plan should be pre- pared and an effective survey method should be conducted. In combination with the project cases, the paper analyzed the surface ground control network, underground traverse survey, mine shaft orientation and gyro orientation edge survey influenced to the through accuracy of the mine roadway. The paper discussed the feasibility method to improve the measuring accuracy. With the prediction and analysis on the error of the through survey, the predicted ultra error between the two central lines in the through point was _＋ 304 mm and the predicted ul- tra error of the two grade lines was ＋ 184 mm, which could meet the Mine Survey Regulations and construction requirements and could ver- ify the rationality of the selected survey plan and method.%为了提高贯通测量的准确性和可靠性,必须编制合理的测量方案,采取有效的测量方法。结合工程实例,分析了地面控制网、井下导线测量、立井定向和加测陀螺定向边对贯通巷道精度的影响;讨论了提高测量精度的可行性方法。通过对贯通测量误差预计分析,在贯通点上,两中线间预计极限误差为±304 mm,两腰线间预计极限误差为±184 mm,满足《煤矿测量规程》及施工要求,检验了所选测量方案和方法的合理性。