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豎井定向是矿山测量工作的最基本工作,其内容包括地表连接、投点和井下连接三个部分。地表和井下的连接方法很多,从一般工作情况看来以伸展联系三角形法比较好和最常用。为了检查实测结果和提高成果的精度,在可能进行多余观测的情况下,必须进行多余观测,从而产生平差问题。本文就定向测量的伸展联系三角形法的平差问题加以叙述。条件方程式为了确定条件方程式和其常数项,首先需要了解观测情况和多余观测数目。一般规程规定的和比较恰当的观测项目为θ_1,θ_2,θ_3,γ,各角和a、b,c三边,这样不难看出多
Shaft orientation is the most basic work of mine measurement work, which includes the surface connection, investment and underground connections in three parts. Surface and underground connection methods are many, from the general situation seems to stretch the contact triangle method is better and most commonly used. In order to check the measured results and improve the accuracy of the results, redundant observations must be made in the event of possible redundant observations, resulting in adjustment problems. In this paper, the problem of the adjustment of extension contact triangles in directional measurement is described. Conditional Equations In order to determine the conditional equations and their constant terms, you first need to understand the observations and the number of extra observations. General rules and the more appropriate observation items for the θ_1, θ_2, θ_3, γ, each corner and a, b, c three sides, it is not difficult to see that more