点位放样的精度探讨

Accuracy study of setting out point position

根据间接平差原理和误差理论 ,对工程测量中常用的放样方法进行了精度分析 ;讨论了控制点误差对放样点精度的影响情况 ;通过算例 ,了解测设放样元素误差和控制点误差对放样点精度的影响规律 ;在此基础上 。

In this paper, according to the principle of adjustment of indirect observations and the error theory, setting out accuracy of setting out methods used usually in engineering survey are analysed. The effect of control point errors on setting out point accuracy is discussed. The effect laws of setting out element errors and control point errors on setting out point accuracy are known by a computation example. On the basis of this, the opinions are advanced for reference in practical work.