Optimization of Embankment Widening with Different Soils
Mangali Akhil Kumaar1, Suresh Kommu2, SS.Asadi3

1SMangali Akhil kumaar, Department of Civil Engineering, VNRVJIET, Hyderabad-90, Telangana, India.
2Suresh Kommu, Assistant Prof, VNRVJIET, Hyd,Research Scholar, KL University, Guntur Dist, AP, India.
3SS Asadi, Associate Professor, Department of Civil Engineering, Vignan’s Foundation for Science Technology and Research, Deemed to be University, Guntur, A.P., India.

Manuscript received on 15 August 2019. | Revised Manuscript received on 25 August 2019. | Manuscript published on 30 September 2019. | PP: 711-715 | Volume-8 Issue-3 September 2019 | Retrieval Number: C3971098319/19©BEIESP | DOI: 10.35940/ijrte.C3971.098319
Open Access | Ethics and Policies | Cite | Mendeley | Indexing and Abstracting
© 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: Due to increasing in the population and vehicular volume the existing roads are becoming inadequate. To overcome this problem, widening of existing roads or embankments are obtained, which required a huge amount of soils of suitable properties but due to industrialization and urbanization the availability of good soils are getting reduced because of which the construction should be carried out with unsuitable or weaker soils of inadequate properties and also the widening process involves accumulation of large land area which results in uneconomic of project. In this study three different soils are considered to analyze the influence of weaker soils on embankment widening which involves the stability analysis and reinforcement contribution analysis. Also study involves optimization of embankment widening using Different embankment sections with different slope angles ( via 1V:1H, 2V:1.5H, 2V:1H and 2.5V:1H ) and geo-synthetic reinforcement, which results in reductions of additional land required and backfill material but ensuring minimum factor of safety of 1.5. The analysis performed based on Limit equilibrium methods using SLOPE/W software. The results shows that the reinforcement mobilizes the stabilizing force in embankment which increases the stability and corresponding factor of safety of embankment and for the reinforced section the factor of safety value is a contribution of both reinforcement and shifted critical slip circle and percentage of contribution depends upon slope angle, soil properties & reinforcement. The cost analysis of embankment widening with different soils and different slope angles shows that steep section is the most economical section in all the cases.
Keywords: Road Embankment; Widening; Different Soils; Slope Angles; Optimization; Geo-Synthetic Reinforcement.
Scope of the Article: Geo-Synthetic Reinforcement