摘要
针对地下工程水平方向的贯通误差问题,在精度分析中将贯通点看作两个不同的点,得到其方差 -协方差阵。通过计算它们的相关误差椭圆确定贯通点的贯通误差结果证明,地下控制网的精度比地面控制网的 精度更为重要。
In guide horizontal breakthrough errors of underground engineering ,the breakthrough point should be treated as two different points “in the accuracy analysis and the breakthrough error is found from the relative error ellipses calculated for it”. Study proves that the accuracy of the underground control measures is much more important than the accuracy of the surface control network, and the basic principle applies to the vertical breakthrough.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2005年第11期141-144,共4页
Journal of Northwest A&F University(Natural Science Edition)
基金
西安理工大学青年基金项目(210306)
关键词
地下工程
导线测量
贯通误差
误差椭圆
underground engineering
traversing
breakthrough error
error ellipse
