| 摘要 |
A mining or tunnelling survey system and method are provided, which use two rods connected to a mine or tunnel wall as part of line and grade layout and also to establish, by means of a light beam, a reference line ending with a dot on the face of the mine or tunnel heading. A calculator, total station instrument or computer with suitable software is employed to lay out and record the obtained data that can then be used for subsequent analysis, for example, by means of an AutoCAD program, outside of the mine. All operations can be performed by the same surveyor.
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