Fig. 14

Analysis of horizontal displacement in the subsidence zone. (a) The horizontal displacement of the MEMS spherical monitoring devices in the subsidence zone; (b) the horizontal displacement of the MEMS sensors in the subsidence zone.

Analysis of horizontal displacement in the subsidence zone. (a) The horizontal displacement of the MEMS spherical monitoring devices in the subsidence zone; (b) the horizontal displacement of the MEMS sensors in the subsidence zone.