用变形误差椭圆预计井下贯通导线的测量偏差

Using the deformation error ellipse to predict the measurement error of underground penetrated wire

误差椭圆是一种在工程测量中评定待定点点位精度,了解待定点点位在哪一个方向上的位差最大,在哪一个方向上的位差最小常用的一种方法,利用误差椭圆这一特性可以预计贯通巷道待定点在任意方向上的位差,可以较精确、形象且全面地反映待定点点位在各个方向上的误差分布情况,更好的指导贯通测量工作。

The error ellipse is a commonly used method that evaluate the position accuracy of point to be located, know the direction of the maximum and minimum difference in engineering measurement, using the characteristics of the error ellipse can predict the difference of the point in any direction, can be more accurate, vivid and comprehensive reflection of the error distribution of the undetermined point in all directions, better guide the connection measurement work.