Effect of Transmitting Boundary on Soil – Slope – Foundation Interaction
Vijay Kumar1, Surbhi Rani2, Akash Priyadarshee3, Ashish Kumar4, Atul Kumar Rahul5
1Vijay Kumar*, Civil Engineering Department, Muzaffarpur Institute of Technology, Muzaffarpur, India.
2Surbhi Rani, Civil Engineering Department, Muzaffarpur Institute of Technology, Muzaffarpur, India.
3Akash Priyadarshee, Civil Engineering Department, Muzaffarpur Institute of Technology, Muzaffarpur.
4Ashish Kumar, Civil Engineering Department, Muzaffarpur Institute of Technology, Muzaffarpur.
5Atul Kumar Rahul, Civil Engineering Department, Muzaffarpur Institute of Technology, Muzaffarpur.
Manuscript received on January 18, 2020. | Revised Manuscript received on January 22, 2020. | Manuscript published on February 10, 2020. | PP: 3130-3136 | Volume-9 Issue-4, February 2020. | Retrieval Number: D1406029420/2020©BEIESP | DOI: 10.35940/ijitee.D1406.029420
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In recent years, extensive research has been performed when the foundation is placed on the crest of slope. Besides of so many researches less number of researches has been done for foundation is placed on slope considering Soil-Structure Interaction (SSI) effect. Construction on slopes poses more challenges especially under seismic load due to an earthquake in addition to the forces of sliding slope itself. The failure of slope not only affects any structure but also has damaging consequences on the environment in general. Therefore, transmitting boundaries should be adequate to absorb the seismic energy at the boundaries. In this paper, effect of transmitting boundary on soil-slope-foundation interaction (SSFI) is studied. Two cases have analysed for SSFI when foundation is placed at various position on the crest and slope itself. El-Centro earthquake (1940) with three different PGA viz. 0.25g, 0.5g and 1g is applied as input motion for both the cases. It is observed that the foundation placed near the slope is more susceptible to damage. Responses of slope (acceleration and displacement) have also been observed at three different nodal points on slope. Results show that the amplification in soil mass leads to settlement of foundation. Shear stress and equivalent plastic strain distribution for SSFI is discussed for different load conditions. It is found that the slope-foundation system shows the local and global failure. Further Post earthquake peak settlement for foundation is plotted and it shows the true behavior of soil.
Keywords: SSFI, Seismic loading, slope, Transmitting Boundary, Post Earthquake, slope stability.
Scope of the Article: Earthquake Engineering