Road High Cutting Slope Stability Analysis under the Influence of Blasting for Excavation

Abstract:

The impact of blasting effect is an important factor of dynamic stability in the excavation of rock slope. Based on the sub-grade engineering in Jin-hai Lake of the New Countryside Construction Project, this paper sets up a finite element analysis model for the dynamic response of the cutting slope under the blasting loading. It discusses the stress field, displacement field and the propagation law of the blasting seismic wave, and analyzes the security evaluation criteria of the dynamic stability of cutting slope. What’s more, it makes a systematic analysis on the effects of blasting excavation on the stability of the cutting slope according to blasting vibration monitoring. The research provides referential value to form a correct understanding towards slope damage caused by blasting excavation.

• Periodical: Advanced Materials Research (Volumes 250-253)
• Pages: 3163-3167
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.250-253.3163
• Online since: May 2011
• Authors: Wen Xue Gao, Zu Cheng Zhuo, Bing Hui Hou, Ning Ning Chen
• Keywords: Blasting for Excavation, Dynamic Stability, High Cutting Slope, Numerical Simulation

References

[1] Jianping Chen，Wenxue Gao. Journal of Engineering Geology. 15(5), p.616~619 (2006), in Chinese.

[2] Ming Chen，Wenbo Lu etal. Chinese Journal of Rock Mechanics and Engineering. 26(1), p.51~56 (2007), in Chinese

[3] Hongtao Xu，Wenbo Lu. Chinese Journal of Engineering journal of Wuhan University, 41(1), p.67~103 (2008), in Chinese

[4] Zucheng Zhuo. The stability and control technology research of the rock slope blasting [M]，Beijing University of Technology, 2009, in Chinese

[5] Zhiyi Zhang, Zhongqian Wang, Blasting Engineer Handbook Of Traffic And Construction Engineering[M]. Beijing: People Transportation Publishing House, 2002, in Chinese.