摘要
介绍了采用多边形闭合导线环、假设独立坐标系统、严密平差的方法进行隧道的洞外平面控制 ,采用近似方法估算隧道的横向贯通误差 ,以及精测里程和曲线转向角的推算 。
The paper introduces a method of horizontal control survey of tunnel's exterior by adopting polygon closed traverse loop, assumed independent coordinate system , rigorous adjustment , adopting approximation to estimate the lateral error of tunnel and the calculation of precise kilometer and curve turn angles,thus the throughout accuracy of the tunnel was improved.
出处
《西部探矿工程》
CAS
2002年第z1期222-223,共2页
West-China Exploration Engineering
关键词
控制测量
闭合导线环
贯通误差
严密平差
control survey
closed traverse loop
throughout error
rigorous adjustment
