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The “Floating Foundation” Method in Calculating the Settlement of Foundation Slabs
https://orcid.org/http://orcid.org/0000-0002-7895-4408
https://orcid.org/http://orcid.org/0000-0002-0083-6524
https://orcid.org/http://orcid.org/0000-0002-8562-6162
The problem of determining the active zone of the base below the foundation and calculating the settlement of the foundation is still of scientific and practical interest. In most cases, in design, the theory of a homogeneous isotropic linearly deformable medium is used to determine the deformations of soil foundations. In the article, the authors propose to use the one-dimensional problem of the theory of compression soil compaction to calculate the settlement of large-area foundation slabs. As the arguments of the proposed methodology, the finding of the lower boundary of the compressible thickness soil is specified. The author's formula for calculating the slab foundation settlement is presented. Comparison of the calculation results according to the author's methodology and the methodology from the current building standards is given. The comparison showed that when using the theory of a linearly deformable half-space, the depth of the compressible soil thickness (and, accordingly, the value of settlement) increases with an increase in the area of the foundation at the same load. When calculating according to the authors' method, the settlement of slab foundations depends only on the magnitude of the compaction pressure and on the specific gravity of the soil. The advantages and disadvantages of the “floating foundation” method are presented.
The “Floating Foundation” Method in Calculating the Settlement of Foundation Slabs
https://orcid.org/http://orcid.org/0000-0002-7895-4408
https://orcid.org/http://orcid.org/0000-0002-0083-6524
https://orcid.org/http://orcid.org/0000-0002-8562-6162
The problem of determining the active zone of the base below the foundation and calculating the settlement of the foundation is still of scientific and practical interest. In most cases, in design, the theory of a homogeneous isotropic linearly deformable medium is used to determine the deformations of soil foundations. In the article, the authors propose to use the one-dimensional problem of the theory of compression soil compaction to calculate the settlement of large-area foundation slabs. As the arguments of the proposed methodology, the finding of the lower boundary of the compressible thickness soil is specified. The author's formula for calculating the slab foundation settlement is presented. Comparison of the calculation results according to the author's methodology and the methodology from the current building standards is given. The comparison showed that when using the theory of a linearly deformable half-space, the depth of the compressible soil thickness (and, accordingly, the value of settlement) increases with an increase in the area of the foundation at the same load. When calculating according to the authors' method, the settlement of slab foundations depends only on the magnitude of the compaction pressure and on the specific gravity of the soil. The advantages and disadvantages of the “floating foundation” method are presented.
The “Floating Foundation” Method in Calculating the Settlement of Foundation Slabs
https://orcid.org/http://orcid.org/0000-0002-7895-4408
https://orcid.org/http://orcid.org/0000-0002-0083-6524
https://orcid.org/http://orcid.org/0000-0002-8562-6162
The problem of determining the active zone of the base below the foundation and calculating the settlement of the foundation is still of scientific and practical interest. In most cases, in design, the theory of a homogeneous isotropic linearly deformable medium is used to determine the deformations of soil foundations. In the article, the authors propose to use the one-dimensional problem of the theory of compression soil compaction to calculate the settlement of large-area foundation slabs. As the arguments of the proposed methodology, the finding of the lower boundary of the compressible thickness soil is specified. The author's formula for calculating the slab foundation settlement is presented. Comparison of the calculation results according to the author's methodology and the methodology from the current building standards is given. The comparison showed that when using the theory of a linearly deformable half-space, the depth of the compressible soil thickness (and, accordingly, the value of settlement) increases with an increase in the area of the foundation at the same load. When calculating according to the authors' method, the settlement of slab foundations depends only on the magnitude of the compaction pressure and on the specific gravity of the soil. The advantages and disadvantages of the “floating foundation” method are presented.
The “Floating Foundation” Method in Calculating the Settlement of Foundation Slabs
Lecture Notes in Civil Engineering
Akimov, Pavel (editor) / Vatin, Nikolai (editor) / Isaev, Veniamin (author) / Maltsev, Andrey (author) / Karpov, Andrey (author)
International Conference on Russian-Polish-Slovak Seminar Theoretical Foundation of Civil Engineering ; 2021 ; Moscow, Russia
XXX Russian-Polish-Slovak Seminar Theoretical Foundation of Civil Engineering (RSP 2021) ; Chapter: 20 ; 170-177
2021-09-15
8 pages
Article/Chapter (Book)
Electronic Resource
English
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