Metro plane control point survey mark and use method thereof
The invention discloses a metro plane control point surveying mark and a using method thereof, and relates to the field of engineering surveying, the metro plane control point surveying mark comprises an embedded nail, a support and a surveying instrument body, the support is installed at the upper...
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| creator | QIN QIWU TIAN CHAO ZHANG YAOYANG MENG FANLONG |
| description | The invention discloses a metro plane control point surveying mark and a using method thereof, and relates to the field of engineering surveying, the metro plane control point surveying mark comprises an embedded nail, a support and a surveying instrument body, the support is installed at the upper end of the embedded nail in a threaded mode, a round opening is formed in the middle of an upper plate of the support, and a circular ring is arranged in the round opening; the left side and the right side of the circular ring are rotationally connected with the side wall of the circular opening through rotating shafts, a longitudinally-arranged circular rod is fixedly arranged in the middle of the circular ring, the middle of the rod wall of the circular rod is rotationally sleeved with a sleeve through a bearing, the upper end of the sleeve is fixedly connected with a supporting rod, and the upper end of the supporting rod is fixedly connected with a mounting plate. The middle of the lower side of the sleeve is f |
| format | Patent |
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| language | chi ; eng |
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| subjects | GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING |
| title | Metro plane control point survey mark and use method thereof |
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