Rock slope stability study for Yujian River dam site based on kinematic analyses

Liangqing Wang, P. H.S.W. Kulatilake, Huiming Tang, Ye Liang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Lithological information, rock mass fracture data and discontinuity shear strength obtained through field investigations have been used in conducting kinematic analyses for the rock slopes that exist in the Yujian River dam site to evaluate the stability of the slopes. Results given in the paper can be considered as conservative because of several conservative assumptions used in the analyses. Dam site slopes seem quite stable up to 40° dip angle. Out of the three basic failure modes, possible wedge sliding seems to be the most likely one followed up with possible plane sliding as the second. Irrespective of the considered slope regions, slope dip direction ranges 270-315° and 200-210° seem to be the worst cases for possible instability of slopes in the dam site. Regional slopes in the dam site can be ranked with respect to safety from the lowest to highest in the following order: R-c-1, R-e-2, R-c-2, R-d-1, R-b, R-a, R-d-2 and R-e-1. Note that the dam site slopes are currently stable and the existing slope angles agree well with the results obtained from the rock slope stability analyses.

Original languageEnglish (US)
Title of host publicationTrends in Civil Engineering
Pages2048-2055
Number of pages8
DOIs
StatePublished - Feb 23 2012
Event2nd International Conference on Structures and Building Materials, ICSBM 2012 - Hangzhou, China
Duration: Mar 9 2012Mar 11 2012

Publication series

NameAdvanced Materials Research
Volume446-449
ISSN (Print)1022-6680

Other

Other2nd International Conference on Structures and Building Materials, ICSBM 2012
CountryChina
CityHangzhou
Period3/9/123/11/12

Keywords

  • Dam site
  • Discontinuity shear strength
  • Kinematic analyses
  • Rock discontinuities
  • Rock slope stability
  • Yujian River

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Wang, L., Kulatilake, P. H. S. W., Tang, H., & Liang, Y. (2012). Rock slope stability study for Yujian River dam site based on kinematic analyses. In Trends in Civil Engineering (pp. 2048-2055). (Advanced Materials Research; Vol. 446-449). https://doi.org/10.4028/www.scientific.net/AMR.446-449.2048