井下贯通测量及误差预计

贯通测量在煤矿掘进、隧道贯通等多种工程中具有极其重要的指导作用。本文以徐州徐庄矿贯通测量为例,将井上GPS控制网、井下三角高程测量、井下导线测量、陀螺定向测量相结合,并根据此方案进行贯通误差预计以及精度分析1]。

Through Hole Measurement and Error Prediction

Holing through survey has an extremely important role in guiding the tunnel through a variety of engineering, such as coal mine tunneling, tunnel through. This paper takes Xuzhuang mine transfixion survey in Xuzhou City as an example, combined he GPS control network, the underground trigonometric leveling and the under shaft traverse survey with gyro orientation measurement making a scheme, and then carry out the error prediction and accuracy analysis on the basis of the scheme1] .