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利用旧硐作地質观察,进行資料的綜合研究,指导地質勘探工作,摆佈勘探設計已成为矿山地質工作極为重要的工作方法之一。旧硐地質观察与編录是比較困难的工作。进行旧硐观察一般应进行坑道測量或半仪器測量,做出坑道平面地質圖,然后从坑口分段連續地进行观察,在复杂的情况应作三璧展示;一般作一璧一頂展示。視具体情况而定。比例尺1∶100,
It is one of the most important working methods to mine geological work by making use of the old cave for geological observation, carrying on comprehensive research of data, guiding the geological exploration work and putting exploration and design at the mercy of the mine. Old cave geological observation and cataloging are more difficult tasks. In general, tunneling or semi-instrumental measurements should be made for the observation of the old tunnels to make a planar geological map of the tunnel and then be continuously observed from the pithead section. In complex situations, three layers of soil should be displayed. As the case may be. Scale 1: 100,