Stability analysis of accumulation body based on monitoring results of deep displacement

Stability analysis of accumulation body based on monitoring results of deep displacement

Jianhui Dong Mo Xu* Shiming Wan Feihong Xie Qihong Wu 

School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China

State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology, Chengdu 610059, China

Corresponding Author Email: 
875924113@qq.com
Page: 
563-572
|
DOI: 
https://doi.org/10.3166/I2M.17.563-572
Received: 
|
Accepted: 
|
Published: 
31 December 2018
| Citation

ACCESS

Abstract: 

The stability of accumulation body commonly adopts a qualitative and quantitative analysis method, which considers the geological boundary conditions, calculation model and mechanical parameters of rock mass and so on This causes the stability results be limited, so it is unlikely to make a real-time quantitative evaluation on the accumulation body. This paper proposes a method which avoids these problems, and timely evaluates the accumulation stability based on the monitoring results in the process of the deformation development. It involves two parameters, i.e. the integrity index S(i) and the destructive index S(d), used to evaluate quantitatively the dynamic change of accumulation body when the progressive destroy occurs from the bottom up. Take talus in front of the dam of Zippingpu hydraulic project as an example, this method not only measures the S(i) and S(d) during movements of its reservoir water level, but also evaluates the impact of Wenchuan earthquake on the accumulation body. it is proved by an example that this method is convenient, practical and feasible.

Keywords: 

talus, stability, real-time quantitative assessment, deformation of landslide in depth, monitoring

1. Introduction
2. Generalization of monitoring results of deep displacement
3. Analysis principle of Si (Sd) index
4. Engineering case
5. Conclusion
  References

Chen H. J., Liu S. H. (2007). Slope failure characteristics and stabilization methods. Canadian Geotechnical Journal, Vol. 44, No. 4, pp. 377-391. http://doi.org/10.1139/t06-131

Chen Z. Y., Mi H. L., Wang X. G. (2001). A three-dimensional limit equilibrium method for slope stability analysis. Chinese Journal of Geotechnical Engineering, Vol. 23, No. 5, pp. 525-529. http://doi.org/10.3321/j.issn:1000-4548.2001.05.001

Cheng H., Zhou X. P. (2015). A novel displacement-based rigorous limit equilibrium method for three-dimensional landslide stability analysis. Canadian Geotechnical Journal, Vol. 52, No. 12, pp. 2055-2066. http://doi.org/10.1139/cgj-2015-0050

Duncan J. M. (1996). State of the art: limit equilibrium and finite-element analysis of slopes. Journal of Geotechnical Engineering, Vol. 22, No. 7, pp. 577-596. http://doi.org/10.1061/(ASCE)0733-9410(1996)122:7(577)

Martha T. R., Roy P., Govindharaj K. B., Kumar K. V., Diwakar P. G., Dadhwal V. K. (2015). Landslides triggered by the June 2013 extreme rainfall event in parts of Uttarakhand state, Landslides, Vol. 12, No. 1, pp. 135-146. http://doi.org/10.1007/s10346-014-0540-7

Shi X. G., Liao M. S., Zhang L., Balz T. (2016). Landslide stability evaluation using high-resolution satellite SAR data in the Three Gorges area. Quarterly Journal of Engineering Geology and Hydrogeology, Vol. 49, No. 3, pp. 203-211. http://doi.org/10.1144/qjegh2015-029

Song D. Q., Song H. Q. (2017). stability studies of reservoir landslide under reservoir water level fluctuation. Dongbei Daxue Xuebao. Journal of Northeastern University, Vol. 38, No. 5, pp. 735-739. http://doi.org/10.3969/j.issn.1005-3026.2017.05.026

Sun G. H., Zheng H., Tang H. M., Dai F. C. (2016). Huangtupo landslide stability under water level fluctuations of the Three Gorges reservoir. Landslides, Vol. 13, No. 5, pp. 1167-1179. http://doi.org/10.1007/s10346-015-0637-7

Sun S. R., Xu P. L., Wu J. M., Wei J. H., Fu W. G., Liu J., Debi P. K. (2014). Strength parameter identification and application of soil–rock mixture for steep-walled talus slopes in southwestern China. Bulletin of Engineering Geology and the Environment, Vol. 73, pp. 123-140. http://doi.org/10.1007/s10064-013-0524-1

Wang N. Q., Xue Y. Q., Yao Q. Y., Yu Z., Feng X. (2014). Review of landslide stability analysis method. Advanced Materials and Technologies, Vol. 1004, pp. 1541-1546. http://doi.org/10.4028/www.scientific.net/AMR.1004-1005.1541

Xia Y. Y., Li M. (2002). Evaluation method research of slope stability and its developing trend. Chinese Journal of Rock Mechanics and Engineering, Vol. 21, No. 7, pp. 1087-1091. http://doi.org/10.3321/j.issn:1000-6915.2002.07.031

Yang B. B., Yin K. L., Xiao T., Chen L. X., Du J. (2017). Annual variation of landslide stability under the effect of water level fluctuation and rainfall in the Three Gorges Reservoir. Environmental Earth Sciences, Vol. 76, No. 16, pp. 12665-12681. http://doi.org/10.1007/s12665-017-6898-9

Yin X. M., Yan E. C., Gao X., Li X. W. (2016). Stability reliability analysis of precipitation-induced landslide based on monte carlo method-example: Xiaozai landslide in China. Electronic Journal of Geotechnical Engineering, Vol. 21, No. 16, pp. 5331-5350.

Zhang X., Tan J. H. (2014). Research on Majiagou landslide stability analysis and control design. Lecture Notes in Electrical Engineering, Vol. 163, pp. 595-602. http://doi.org/10.1007/978-1-4614-3872-4_76

Zhang Z. Y., Wang S. T., Wang L. S. (2009). Principles of engineering geology. Beijing: Geological Publishing House, pp. 154-165.

Zhu B., Hou K. P. (2007). Summarize of slope stability study. Express Information of Mining Industry, Vol. 23, No. 10, pp. 4-8.