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Research on the engineering geological conditions and stability evaluation of the B2 talus slide at the Jin’an Bridge hydropower station, China

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Abstract

The B2 talus slide at the Jin’an Bridge hydropower station is located on the left bank of the Jinsha River and very close to the left abutment of the dam. The stability of the dam is directly influenced by the engineering geological properties, formation mechanisms, and failure modes of the B2 talus slide. This paper highlights the investigation and analysis of the in situ engineering geological conditions of the slide area. The results indicate that the B2 talus slide is composed of three parts: the talus deposits consisting of a soil-rock mixture (SRM) in the upper part, unloaded and relaxed rock mass in the middle part, and bedrock with several tuff interlayers in the lower part. Based on topographic and geomorphologic analyses, the structure of the rock and soil, distribution characteristics, formation mechanisms, and influencing factors, the strength of the SRM in the upper part and the properties of the tuff interlayer in the lower part are the main factors affecting the stability of the slide. Additionally, the failure modes of the slide are likely to be circular in nature in the talus deposits, broken line sliding along the interface between the unloaded and relaxed rock and the upper boundary of the tuff and broken line sliding along the tuff interlayer. The strength parameters of the SRM and the tuff interlayer were obtained through laboratory experiments and theoretical inverse analyses. Additionally, a three-dimensional geological model of the slide was created using the aforementioned results and the software GoCAD. Limit equilibrium and finite element methods were used to evaluate the stability of the slide using two-dimensional and three-dimensional models. The results indicate that the slope is stable under natural conditions. However, the slope may be unstable, under special conditions, such as artificial excavation, flood discharge atomization, rainstorms, and earthquakes.

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References

  • Blais-Stevens A, Behnia P, Kremer M, Page A, Kung R, Bonham-Carter GF (2012) Landslide susceptibility mapping of the Sea to Sky transportation corridor, British Columbia, Canada: comparison of two methods. Bull Eng Geol Environ 71:447–466

    Article  Google Scholar 

  • Discenza ME, Esposito C, Martino S, Petitta M, Prestininzi A, Scarascia Mugnozza G (2011) The gravitational slope deformation of Mt. Rocchetta ridge (central Apennines, Italy): geological-evolutionary model and numerical analysis. Bull Eng Geol Environ 70:559–575

    Article  Google Scholar 

  • Gu TF, Wang JD, Fu XP, Liu YM (2015) GIS and limit equilibrium in the assessment of regional slope stability and mapping of landslide susceptibility. Bull Eng Geol Environ 74:1105–1115

    Article  Google Scholar 

  • Hammouri NA, Malkawi AIH, Yamin MMA (2008) Stability analysis of slopes using the finite element method and limiting equilibrium approach. Bull Eng Geol Environ 67(4):471–478

    Article  Google Scholar 

  • Hearn GJ, Pettifer GS (2016) The role of engineering geology in the route selection, design and construction of a road across the Blue Nile gorge, Ethiopia. Bull Eng Geol Environ 75:163–191

    Article  Google Scholar 

  • Jiang Q, Qi Z, Wei W, Zhou C (2014) Stability assessment of a high rock slope by strength reduction finite element method. Bull Eng Geol Environ 74(4):1–10

    Google Scholar 

  • Liu F, Zhao J (2013) Limit analysis of slope stability by rigid finite element method and linear programming considering rotational failure. Int J Geomech 13(6):827–839

    Article  Google Scholar 

  • Macklin S, Ellison R, Manning J, Farrant A, Lorenti L (2012) Engineering geological characterisation of the Barzaman Formation, with reference to coastal Dubai, UAE. Bull Eng Geol Environ 71:1–19

    Article  Google Scholar 

  • Medley E (1994) The engineering characterization of mélanges and similar Block-in-Matrix Rocks (Bimrocks). Ph.D. Dissertation, University of California at Berkeley, California, Ann Arbor, MI: UMI, Inc

  • Medley E, Wakabayashi J (2004) Geological characterization of melanges for practitioners. Felsbau Rock Soil Eng J Eng Geol Geomech Tunn 22(5):10–18

    Google Scholar 

  • Singh R, Umrao RK, Ansari M, Singh TN (2014) Stability evaluation of road-cut slopes in the Lesser Himalaya of Uttarakhand, India: conventional and numerical approaches. Bull Eng Geol Environ 73:845–857

    Article  Google Scholar 

  • Sun SR, Xu PL, Wu JM, Wei JH, Fu WG, Liu J, Kanungo DP (2014) Strength parameter identification and application of soil–rock mixture for steep-walled talus slopes in southwestern China. Bull Eng Geol Environ 73:123–140

    Article  Google Scholar 

  • Tyler SW, Wheatcraft SW (1992) Fractal scaling of soil particle-size distribution analysis and limitations. Soil Sci Soc Am J 56:362–369

    Article  Google Scholar 

  • Usluogullar OF, Temugan A, Duman ES (2015) Comparison of slope stabilization methods by three-dimensional finite element analysis. Nat Hazards 81(2):1027–1050

    Article  Google Scholar 

  • Wang ZM, Kwan AKH, Chan CH (1999) Mesoscopic study of concrete I: generation of random aggregate structure and finite element mesh. Comput Struct 70:533–544

    Article  Google Scholar 

  • Xu WJ, Hu RL (2009) The concept, classification and significance of SRM. Hydrogeol Eng Geol 4:50–56

    Google Scholar 

  • Xu W, Hu R, Tan R (2007) Some geomechanical properties of soil–rock mixtures in the Hutiao Gorge area, China. Geotechnique 57(3):255–264

    Article  Google Scholar 

  • Xu WJ, Yue ZQ, Hu RL (2008) Study on the meso-structure and meso-mechanical characteristics of the soil-rock mixture using digital image processing based finite element method. Int J Rock Mech Min Sci 45(5):749–762

    Article  Google Scholar 

  • Yilmaz I (2009) A case study from Koyulhisar (Sivas-Turkey) for landslide susceptibility mapping by artificial neural networks. Bull Eng Geol Environ 68(3):297–306

    Article  Google Scholar 

  • Yue ZQ, Morin I (1996) digital image processing for aggregate orientation in asphalt concrete mixtures. Can J Civ Eng 23:479–489

    Article  Google Scholar 

  • Zhang YS, Guo CB, Qu YX, Song YH (2011) Engineering geological properties of altered rocks and implications for railway construction in the Sanjiang orogenic belt, Southwest China. Bull Eng Geol Environ 70:143–152

    Article  Google Scholar 

  • Zhou JW, Yang XG, Yang ZH (2015) Determination method for shear strength parameters of rock-soil mixtures using close-range photogrammetry and 3-D limit equilibrium theory. J Mt Sci 12:1068–1083

    Article  Google Scholar 

Download references

Acknowledgements

This research is financially supported by the Natural Science Foundation of China (Grant Nos. 41672258, 41102162, and 41472241) and Natural Science Foundation of Jiangsu Province, China (Grant No. BK20141415). The authors gratefully acknowledge Ph.D. Zhigao Dong in School of Earth Sciences and Engineering, Hohai University, China, for his contribution to the field investigation. The authors would also like to acknowledge the editors and reviewers of this paper for their very helpful comments and valuable remarks.

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Authors and Affiliations

  1. School of Earth Sciences and Engineering, Hohai University, Nanjing, 210098, China

    Jin Liu, Jihong Wei, Hao Hu, Jimin Wu & Shaorui Sun

  2. CSIR-Central Building Research Institute (CBRI), Roorkee, 247667, India

    Debi Prasanna Kanungo

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  1. Jin Liu
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  2. Jihong Wei
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  3. Hao Hu
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  4. Jimin Wu
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  5. Shaorui Sun
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  6. Debi Prasanna Kanungo
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Correspondence to Jin Liu.

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Liu, J., Wei, J., Hu, H. et al. Research on the engineering geological conditions and stability evaluation of the B2 talus slide at the Jin’an Bridge hydropower station, China. Bull Eng Geol Environ 77, 105–125 (2018). https://doi.org/10.1007/s10064-017-1005-8

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  • DOI: https://doi.org/10.1007/s10064-017-1005-8

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