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(一) 概述 空峒测量是矿山井下测量中一个重要课题,特别是高效率采矿法(如深孔留矿法)广泛使用之后,采场中形成了高、宽、厚均达几十米的空峒,不及时准确地测出这些空峒,就无法正确地计算矿石的损失和贫化,很难监督生产、管理资源。 虽然近几年用摄影、交会和调节仪器焦距的办法对空峒测量进行了研究,并取得了一定的成效,但不足之处仍很多,须进一步
(A) Overview Air 峒 measurement is an important issue in underground mine surveying, especially after the widespread use of high-efficiency mining method (such as deep hole stay-mining method), the stope formed in the height, width and thickness of up to tens of meters Empty space is not timely and accurate measurement of these gaps, we can not correctly calculate the loss and depletion of ore, it is difficult to supervise the production and management of resources. Although the measurement of airborne 用 has been studied in recent years by means of photography, rendezvous and adjusting the focal length of the instrument, some achievements have been achieved. However, there are still many shortcomings,