利用小闭合环贯通-650M大巷浅析

Analysis on Using Small Closed Loops to Get Through 650M Mine Roadway

矿井重要巷道的贯通一般由首级控制的7″导线点作为联系测量的起算点,复测至贯通点附近,进行贯通预计分析,实测坐标成果作为施工掘进标定的依据。而文中所指小闭合环是利用一个已知点坐标和一条起算方位组成相对独立的闭合系统,复测导线,指导掘进施工并对贯通后的精度进行分析总结。

Generally, the transfixion of major mineroadway uses the first class control 7″ traverse point as fixed initial point of connection survey. Resurveying to the near holing point and doing the prediction and analysis of transfixion, measured coordinate results is the basis of tunneling construction calibration. In this paper, the small closed loops use one known coordinate and one initial direction to compose an independent closed system, resurveying wire, guiding tunneling construction and then analyzing and summing up the accuracy after transfixion.