摘要
在地形起伏较大地区,几何水准测量十分不便。探讨了用普通全站仪进行短视距精密三角高程测量代替二等水准,来监测小范围内的垂直位移的可行性。通过短视距精密三角高程测量公式,研究短视距精密三角高程测量的误差源和精度,并以实测高差数据,验证用此法代替二等几何水准的可靠性,最后给出了全站仪进行短视距精密三角高程测量替代二等几何水准的精密措施及优缺点。
The traditional geometrical leveling is inconvenient in fluctuating area .This article discussed the viability of monitoring the vertical displacement in small area, using the common Total Station instead of second-class leveling. Base on the formula of precise trigonometric leveling, it discussed the error resources and accuracy in Short-distance. Observed data were acquired by the common Total Station, and then verified the reliability of this method. At last it also gave out several precise measures, strengths and weaknesses.
出处
《地理空间信息》
2011年第6期141-143,12,共3页
Geospatial Information
关键词
全站仪
三角高程测量
短视距
二等水准
精密水准
Total Station,trigonometric leveling,short-distance,second-class leveling,precise leveling
