Measuring point structure of earth surface movement observation station

The utility model relates to the technical field of coal mining monitoring, and provides a measuring point structure of an earth surface movement observation station, which comprises a precast pile body and an observation measuring nail, a hollow structure is arranged in the prefabricated pile body...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SUN HAO, WANG ZHONGJU, YU QIUGE, LIU YIXIN, DENG WEINAN, LYU TINGMIN, HOU JINGMIN, TIAN GUOCAN, GAO MINGWEI, YIN XIWEN, CHENG YANFANG, DONG CHAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING
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