Methodology for Obtaining the Core of the Base Model Based on the Results of Experimental Studies of the Interactions of Plates and Stamps with a Pliable Base

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Abstract

Article, by way of discussion, provides a description of a technique to determine the core of foundation modelfor the subsequent generation of forces and deformations in the foundation plate on a pliable base by an analytical method. The technique described in the article can also be used to determine the contact model of the base that is closest to these soil conditions, as well as to check the soil conditions for identity from the point of view of soil models. Main goal of conducted research is to obtain relationship between displacements and contact soil stresses, which is an integral Fredholm equation of the 1st kind with the core of soil model described by B.G. Korenev.

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About the authors

S. O. Shulyat’ev

Research Institute of Bases and Underground Structures (NIIOSP) named after N.M. Gersevanov, Research Center of Construction JSC

Author for correspondence.
Email: shulyatevs@yandex.ru

Candidate of Sciences (Engineering), Leading Researcher

Russian Federation, 6-11, Zagorskiye Dali, Sergiyevo-Posadsky District, Moscow Region, 141367

References

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Supplementary files

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2. Fig. 1. General view of the experimental structure tests

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3. Fig. 2. The layout of the characteristic points for changing the VAT parameters of the base and foundation for the experimental stamp (a) and the experimental plate (b); 1 – the experimental stamp (plate); 2 – displacement sensors; 3 – contact voltage sensors

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4. Fig. 3. The scheme for processing the results for the plate: 1 – experimental plate; 2 – ground base

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5. Fig. 4. Relative movements of the plate and the soil (Sp(cp) – the average movement of the plate) according to the results of testing the sandy soil with plates (blue dots) with an error estimate (black lines) and an approximating curve (red line)

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6. Fig. 5. Relative contact stresses (Pcr – average pressure) under the slab, according to the results of testing the sandy soil with slabs (blue dots) with an error estimate (black lines) and an approximating curve (red line)

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7. Fig. 6. The core of the base model during the test of the pilot plate calculated using the developed technique (black line) and numerically (blue line) (to improve visibility, the core is given for the one-dimensional case) (dimensionless coordinates)

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8. Fig. 7. The core of the base model when testing an experimental slab on an artificial sandy base, calculated using the developed technique (black line) and numerically (blue line) (to improve visibility, the core is given for the one-dimensional case) (dimensionless coordinates)

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9. Fig. 8. The cores of the clay base models for the first (blue) and second (black) test series, as well as the core of the two-parameter base model (gray line) (dimensionless coordinates)

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