大型贯通测量中加测陀螺定向边的位置选取分析  

Analysison Position Selection of the Gyro Orientation Edge in Large Through Survey

作　　者：任传建 王志红 REN Chuan - jian WANG Zhi - hong(Institute of Mining Engineering, Guizhou University of Engineering Science, Bijie 551700 ,China)

机构地区：[1]贵州工程应用技术学院矿业工程学院,贵州毕节551700

出　　处：《测绘与空间地理信息》2017年第3期57-59,共3页Geomatics & Spatial Information Technology

基　　金：基金项目:基于校内测量实训控制网布设与实施的实训基地建设实践(JG2015010)资助

摘　　要：大型贯通测量中常常使用加测陀螺边来提高贯通测量精度,但目前对于陀螺定向边的位置选取并无明确规范和要求。本文主要探讨了不同位置的陀螺定向边选取对贯通测量精度的影响。实验结果表明,井下选取的陀螺定向边与测定仪器常数的地面已知边之间距离过大对于贯通测量精度影响较大,在井下选取陀螺定向边位置时,应与测定仪器常数的地面已知边距离保持在3 000 m以内为优。The gyro orientation edge survey are commonly used in large through survey to improve the accuracy of through survey. However, there is no explicit requirement for the position of the orientionedge. This paper mainly discusses the influence of different position of the gyro oretention edge on the accuracy of through survey. The experimental results show that the accuracy is greatly influenced when the distance between the gyro orientation edge of underground and the known edge of the measuring instrument constant on the ground is too large and the distance less than 3000m is suggested to get more accurate through accuracy.

关 键 词：陀螺定向 贯通测量 定向边位置 精度 仪器常数 

分 类 号：P258[天文地球—测绘科学与技术]