| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for estimating a position of a vertical shaft pit mouth capable of accurately obtaining a current position of the vertical shaft pit mouth.SOLUTION: A method for estimating a position of a vertical shaft pit mouth comprises: a first measuring process which surveys initial positions of a plurality of measurement points 3, 3,... installed in a vertical shaft 1 and the initial position of a pit mouth 2 and acquires a positional relation between the plurality of measurement points 3, 3,... and the pit mouth 2; a second measuring process which surveys current positions of the plurality of measurement points 3, 3,... from the ground after filling the vertical shaft 1 with water; and a pit mouth estimation process which estimates the current position of the pit mouth 2 on the basis of the initial positions and the current positions of the measurement point 3.SELECTED DRAWING: Figure 2 |
