Study of Seismic Design Method for Slope Supporting Structure of Soil Nailing

Tian Zhong Ma; Yan Peng Zhu; Chun Jing Lai; De Ju Meng

doi:10.4028/www.scientific.net/AMM.353-356.2073

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 353-356Study of Seismic Design Method for Slope...

Study of Seismic Design Method for Slope Supporting Structure of Soil Nailing

Abstract:

Slope anchorage structure of soil nail is a kind of economic and effective flexible slope supporting structure. This structure at present is widely used in China. The supporting structure belong to permanent slope anchorage structure, so the design must consider earthquake action. Its methods of dynamical analysis and seismic design can not be found for the time being. The seismic design theory and method of traditional rigidity retaining wall have not competent for this new type of flexible supporting structure analysis and design. Because the acceleration along the slope height has amplification effect under horizontal earthquake action, errors should be induced in calculating earthquake earth pressure using the constant acceleration along the slope height. Considering the linear change of the acceleration along the slope height and unstable soil with the fortification intensity the influence of the peak acceleration, the earthquake earth pressure calculation formula is deduced. The soil nailing slope anchorage structure seismic dynamic calculation model is established and the analytical solutions are obtained. The seismic design and calculation method are given. Finally this method is applied to a case record for illustration of its capability. The results show that soil nailing slope anchorage structure has good aseismic performance, the calculation method of soil nailing slope anchorage structure seismic design is simple, practical, effective. The calculation model provides theory basis for the soil nailing slope anchorage structure of seismic design. Key words: soil nailing; slope; earthquake action; seismic design;

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Periodical:

Applied Mechanics and Materials (Volumes 353-356)

Pages:

2073-2078

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.353-356.2073

Citation:

Cite this paper

Online since:

August 2013

Authors:

Tian Zhong Ma*, Yan Peng Zhu, Chun Jing Lai, De Ju Meng

Keywords:

Earthquake Action, Seismic Design, Slope, Soil Nailing

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* - Corresponding Author

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