Affiliation:
1. University of Science and Technology Houari Boumediene
2. Mohamed Khider University
Abstract
In this work, the effect of the dynamical interaction between the superficial and the underground structures is studied under an impact of seismic loading. Finite element Plaxis2D code© under conditions of plane strain is used successfully. The material behaviour of the soil, the superficial structures and the tunnel is assumed to be fully elastic and are modeled with 15-nodes triangular element. The present study shows that increasing the number of neighboring structures and decreasing the separation distance between them can significantly reduce the seismic responses amplitudes of the superficial structures and the tunnel, especially in the case of soft soils. This reduction can reach up 35%. These results can be taken into consideration in the study and construction of realistic projects, especially sensitive ones.
Reference25 articles.
1. [1] M. Lou, H. Wang, X. Chen, and Y. Zhai, "Structure–soil–structure interaction: Literature review," Soil Dynamics and Earthquake Engineering, vol. 31, no. 12, pp. 1724-1731, 2011.
2. [2] J. Knappett et al., "Structure-soil-structure interaction in changing urban areas," in Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions: CRC Press, 2019, pp. 35-48.
3. [3] K. Pitilakis, G. Tsinidis, A. Leanza, and M. Maugeri, "Seismic behaviour of circular tunnels accounting for above ground structures interaction effects," Soil Dynamics and Earthquake engineering, vol. 67, pp. 1-15, 2014.
4. [4] G. Abate and M. R. Massimino, "Parametric analysis of the seismic response of coupled tunnel–soil–aboveground building systems by numerical modelling," Bulletin of Earthquake Engineering, vol. 15, no. 1, pp. 443-467, 2017.
5. [5] H. F. Wang, M. L. Lou, and R. L. Zhang, "Influence of presence of adjacent surface structure on seismic response of underground structure," Soil Dynamics and Earthquake Engineering, vol. 100, pp. 131-143, 2017.