水准网中起算点的选用方法探讨

水准网平差中起算点质量好坏不仅影响平差精度,而且如果采用不好的点位,直接影响成果的使用,带来严重后果。该文以青州市水准网的布设为例,分析讨论了起算点对水准网精度的影响,提出了根据较差中误差大小选用起算点的方法,阐述了该方法的步骤,达到的效果,以及水准网布设方法等。

Study on Selection Method of Starting Points in Leveling Network

Standard starting points in the network adjustment not only affects the quality of adjustment accuracy,but also will impact the use of achievements if using bad points.In this paper,by setting leveling network layout in Qingzhou city as an example,the impact of the starting points to network accuracy is studied in this paper.The method for selecting starting points based on the poor error is put forward as well.The steps,effects,and network layout method are introduced in this paper.