Coal mine goaf land subsidence detection device and detection method

The invention discloses a coal mine goaf land subsidence detection device and method, and the device comprises a support, a connecting rod is erected at the center of the support, the connecting rod extends towards the lower part of the support, and the outer wall of the part, below the support, of...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	REN ZHULI, ZHANG CHENGHUI, DONG MIAO, WANG WEN, HE YUN, CHEN LIWEI, WANG XIANG
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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