In Situ Monitoring Test for Rock Slope Stability in Li County Earthquake Zone of Sichuan Province

Abstract:

Combined with the highway from Lixian to Xiaojin, the in-situ monitoring test for Baozizui rock slope was carried out in Li County earthquake zone of Sichuan province, and three earthquakes whose magnitude exceeds 4.8 times had occurred during the monitoring period. According to monitoring results, the main conclusion was shown that the slope deformation attenuated and tended to be stable after two month of construction. Considered the anti-inclined structural face in the slope, the compacting deformation action, which was beneficial to slope stability. Moreover, seismic load had great influence on horizontal deformation of structural face in surface rock layer. And the reason was that there was regional stress bearing compression and shear in the nappe structures located on the thrust fault upper plate of this slope. The variation of horizontal deformation was frequent in earlier stage located at the road curve, in which there existed the traffic load, seismic excitation effects. And the later observational data indicated that the deformation has been basically stabilized.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 2473-2477
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.2473
• Online since: October 2012
• Authors: Jian Hua Liu
• Keywords: In Situ Test, Deformation Monitoring, Seismic Area, Slope, Stability

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DOI: 10.1007/s11771-009-0051-1

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