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矿井定向测量是矿山测量工作中一项重要的内容。当前各金属矿井进行定向测量工作的总方案很不一致:有的矿井每个中段的定向测量,都从地表直接进行;有的矿井按中段依次传递定向;有的矿井根据钢线的长度,从上部某中段进行下部中段的定向。随着金属矿井开采深度的加深,有必要根据金属矿井的采矿生产特点、定向测量的目的、采矿生产对矿山测量工作的要求,以及从定向测量的精度等方面,讨论定向测量工作的总方案。矿井定向测量工作的方案主要有两种:单井定向和双井定向。从金属矿井井巷掘进情况看来,单井定向是必须经过的;从精度观点来讲,双井定向要好一些。本文根据金属矿井的生产特点,分别讨论单井定向和双井定向工作的总方案问题。
Mine directional measurement is an important part of mine measurement work. Current metal mine directional measurement of the overall program is very inconsistent: some of the mine in each of the middle of the directional measurement, all directly from the surface; some mines by the middle of the transfer order; some mines according to the length of the wire, from the top A mid-section of the lower middle of the orientation. With the deepening of the mining depth of metal mines, it is necessary to discuss the general scheme of directional surveying according to the characteristics of mining production in metal mines, the purpose of directional measurement, the requirements of mine measurement for mining production, and the accuracy of directional measurement. There are two main schemes of mine directional measurement work: single well orientation and double well orientation. From the perspective of metal mine tunneling, single well orientation is a must; and from a precision point of view, double well orientation is better. Based on the production characteristics of metal mines, this paper discusses the overall scheme of single-well orientation and double well orientation respectively.