Official Journal of the Asia Oceania Geosciences Society (AOGS)
Table 2 Features of deformation during the sliding process in 2017
From: Deformation characteristics and instability mechanism of large-scale anti-dip rock slides
Time | Stage | Features of deformation |
|---|---|---|
10:00 a.m Oct. 20, 2017 | Before sliding | Cracks appeared in the houses and ground in the source area, about 5 m–10 m long and 1 cm–3 cm wide |
3:30 p.m Oct. 20, 2017 | Before sliding | The cracks were continuously expanding, up to a scale of 10 m–30 m long. A settlement of 5 cm–20 cm occurred on the surface |
00:20 a.m Oct. 21, 2017 | Sliding | The massive rockslide started to move from the source area, and severe deformation was formed on both sides of the slipped zone |
Oct. 22–27, 2017 | After sliding | Local collapses and rockslides happened frequently in the sliding area |
9:00 p.m Oct. 27, 2017 | After sliding | A large rock of 10,000 m3 fell from the crown area close to PSA-III |
Oct. 28, 2017 | After sliding | Serious deformation occurred at the middle, rear and east side of the PSA-III with a mass of transverse and longitudinal cracks appeared |