Influence of Loading and Soil Modeling Approach on Soil-Shallow Foundation Interaction

Teli, Sujay; Kundhani, Palak; Choksi, Virag; Sinha, Pritam; Iyer, Kannan K. R.

doi:10.1007/978-981-33-6466-0_46

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“…In the next step, PLAXIS 2D [37] is used for serviceability limit state (SLS) design. PLAXIS 2D software is used to check the safety of soil under building loads.…”

Section: Plaxis 2d Modelingmentioning

confidence: 99%

Development of a Cost-Based Design Model for Spread Footings in Cohesive Soils

et al. 2022

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The use of cost-effective construction design approaches is an emerging concept in the field of sustainable environments. The design of the foundation for the construction of any infrastructure-related building entails three basic requirements, i.e., serviceability limit state (SLS), ultimate limit state (ULS), and economics. Engineering economy coupled with safety are the two main essentials for a successful construction project. The conventional design approaches are based on hit and trial methods to approach cost-effective design. Additionally, safety requirements are prioritized over the economic aspect of foundation design and do not consider safety requirements and cost simultaneously. This study presents a design approach that considers foundation construction costs while satisfying all the technical requirements of a shallow foundation design. This approach is called an optimization process in which the cost-based isolated foundation design charts were developed based on the field SPT N data. The design charts are the first of their kind for the robust design of foundations and can be used to compare the economic impact of different bearing capacity models. Furthermore, the design framework considers the quantitative impact of the different applied factors of safety values in terms of cost. The results show that Vesic’s equation yields higher values of bearing capacities than Terzaghi and Meyerhof. On the other hand, Vesic’s theory offers a 37.5% reduction in cost as compared to the conventional design approach of the foundation for isolated footing.

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“…In the next step, PLAXIS 2D [37] is used for serviceability limit state (SLS) design. PLAXIS 2D software is used to check the safety of soil under building loads.…”

Section: Plaxis 2d Modelingmentioning

confidence: 99%