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本文主要解决测量方向、以条件平差法严密平差方向的三角锁,其測量误差对隧道横向贯通精度影响值的严密计算问题。文中提供了通用的、严密的计算方法,推导了相应的计算公式。为了明确使用方法,并附以数值算例。本文可供科研上的理论分析;严密计算隧道横向贯通精度影响值,以改进隧道三角锁的设计,提高隧道三角測量的效率,评价现存的代用公式或近似公式等参考使用。
This paper mainly solves the problem of the tight calculation of the influence of the measurement error on the transverse penetration accuracy of the tunnel by measuring the direction of the triangle and adjusting the direction of the triangle by the conditional adjustment method. The article provides a generic, rigorous calculation method, derived the corresponding formula. In order to clarify the use of methods, with numerical examples. This article can be used for theoretical analysis of scientific research. The influence of tunnel transverse penetration accuracy is closely calculated so as to improve the design of tunnel triangle lock, improve the efficiency of tunnel triangulation, and evaluate the existing substitute formula or approximate formula.