The Load Ratio on the Common Work of Micro-Pile and Soil Foundation in the Building Heightening and Transformation

Abstract:

Analyze the stress mechanism of micro-pile and existing mechanism, and come up with the analytic method of pile-soil-(foundation) pile cap interaction grounded upon penetration deformation of pile ends and compression of soil between piles. Hyperbolic model is adopted to simulate the development of tip resistance and side resistance in accordance with deformation to reflect the nonlinearity of pile-soil work, Boussinesq solution is utilized to calculate the stresses generated in soil by foundation (pile cap) plate, Mindlin stress solution is used to calculate the stress produced in the soil between piles by side resistance and end resistance, and the stress of soil is the superposition of the two solutions. Through iterative calculation analytic program RTLOAD for the sharing ratio of a single pile is compiled through VC++.

• Periodical: Advanced Materials Research (Volume 933)
• Pages: 245-249
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.933.245
• Online since: May 2014
• Authors: Su Juan Zhang
• Keywords: Heightening, Load Ratio, Micro-Pile, Program of Iterative Calculation, Transformation

References

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