Investigation and stability analysis of differential erosion rock slope: Example of the slope at 68K of provincial highway No. 2
Journal
Journal of Chinese Soil and Water Conservation
Journal Volume
46
Journal Issue
1
Pages
38-46
Date Issued
2015
Author(s)
Abstract
On August 31, 2013, a huge rock driven by torrential rain fell on Provincial Highway No. 2 in Badoutzu and nearly hit a passing car. In Badoutzu, the Da-liao Formation is exposed on the rock slope. The strength of the middle part is greater than that of the lower part; therefore, a notch propagates along the lower part during erosion, resulting in rockfall potential at the middle part. To reduce or avoid rockfall hazard, we recommend a method and associated procedures to analyze the mechanics and the influence area of a rockfall event, that is slope unit division, stereographic projection analysis, stability analysis, and rockfall run-out distance estimation using RocFall Software. The proposed method reveals that the event of August 31 was a tensile-failure-induced toppling. ©, 2015, Chinese Soil and Water Conservation Society. All right reserved.
Subjects
Analysis of statically determinate structures; Differential erosion; Overhanging rock; Slope unit division; Stereographic projection analysis
SDGs
Other Subjects
erosion; failure analysis; hillslope; identification key; road; rockfall; software; stability analysis; tensile strength; toppling
Type
journal article