长大隧道控制网设计及横向贯通误差预计

摘要

根据横向贯通精度的要求,对洞内外控制网做了设计,并对其横向贯通误差进行了估算。数据显示：估算成果满足限差要求,控制网设计方案可行。同时,对提高洞内控制测量精度提出了自己的一点建议。%According to the specification of through accuracy, the tunnel control network in and out of the caves is de signed and the relative through error is estimated. The data result shows that the estimation satisfies the tolerance specifi- cation and this tunnel control networlc is feasille. Some suggestion atont how to improve the through accurary is given.