| 摘要 |
<p>The present invention relates to an apparatus to survey an inner reference point of a long and large tunnel using a gyro station. The apparatus includes: a total station device (100) including a mount (110) and a total station (120); a pole device (200) including a pole installation tool (210), a pole (220), a left horizontal level displaying device (230), and a right horizontal level displaying device (240); a prism device (300) including a lower portion joining part (310), a prism part (320) arranged on an upper portion of the lower portion joining part (310), and an upper portion joining part (330) arranged on an upper portion of the prism part (320); and a lighting device (400) including a fixation bar (410), a rotational bar (420), a lighting installation body (430), a left lighting device (440), and a right lighting device (450). According to the present invention, the total station (120) of the apparatus can precisely collimate the prism part (320), thus perform more correctly an inner reference point survey and a confirmation survey in the long and large tunnel.</p> |
