Hazardous slope control in an open-pit coal mine based on continuous tilt observations

DOI: 10.5176/2251-3353_GEOS16.23

Authors: J. Mrlina, V. Polák, P. Skalský, B. ChánGravity&

Abstract: In this paper we present results of tiltmeter monitoring of hazardous slopes of an open-pit mine. The case history is from the Czech Republic. The two tiltmeter stations were established inside a horizontal gallery drilled through the slope. The regular trend of tilting is disturbed by sudden deviations in winter. During these periods some landslides occurred right at the beginning of the deviations or even during them. Therefore we assume the tilt measurements may serve as precursory technique, especially if supported by independent method like automated geodetic scanning. As the principal cause of sliding we consider displacements and accumulation of groundwater.

Keywords: hazard slope; open-pit mine; landslide; tiltmeter; microgravity.