| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a system for measuring a drilling position which lessen a measuring error and enable measurement of the drilling position with high accuracy.SOLUTION: An extension pipe 10 is connected to the end part of a drilling pipe 9 that projects above the ground and, a gyroscope 3 being moved inside the drilling pipe 9 and the extension pipe 10, a locus of movement of the gyroscope 3 is calculated by a control device 5, based on obtained detection data of the gyroscope 3 and data on a length of movement of the gyroscope 3 detected by an encoder 4, while three-dimensional coordinates of the gyroscope 3 at two reference positions Pa and Pb separating from each other in the extension pipe 10 are detected by a reference position coordinates detecting means 11. Based on the data on the locus of movement of the gyroscope 3 and the data on the two three-dimensional coordinates detected by the reference position coordinates detecting means 11, the drilling position is calculated by the control device 5 and displayed in a monitor 6. |
