Diagnostic and analysis of specific soil with ground water level and plain concrete slab interaction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F20%3A10247112" target="_blank" >RIV/61989100:27120/20:10247112 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26110/20:PU140931

Výsledek na webu

<a href="https://actamont.tuke.sk/pdf/2020/n3/14sucharda.pdf" target="_blank" >https://actamont.tuke.sk/pdf/2020/n3/14sucharda.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.46544/AMS.v25i3.14" target="_blank" >10.46544/AMS.v25i3.14</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Diagnostic and analysis of specific soil with ground water level and plain concrete slab interaction

Popis výsledku v původním jazyce

This article deals with the selected task soil and structure interaction in case of a thin concrete slab and increased groundwater level. The soil and structure interaction is a complex task applied in cases when necessary to sufficiently consider the proposal&apos;s safety and economy. The particular topic dealt with is the performed specific experiment of a concrete slab on the subsoil that is subsequently simulated using 3D computing models. The performed experiment is a concrete slab with dimensions 2000 x 2000 mm. The concrete slab thickness was 150 mm. Computing models are based on the Finite Element Method and non-linear analyses. The specificity of the experiment is that it simulates extreme foundation conditions when the groundwater level almost reaches the foundation base. The experiment confirmed the significant effect of the groundwater level, the reduction of the overall bearing capacity of the slab and the rapid disturbance and collapse of the slab. Numerical models also described very well the occurrence of cracks and slab collapse. The results were in good agreement with the experimental testing. Major specificities include that the measuring and load test records are supplemented with an acoustic emission to identify concrete cracks. Findings from acoustic emission make it possible to describe the formation of cracks at a time when cracks are not visible and to verify the subsequent behaviour of the slab. The research task presented also includes detail laboratory tests of the concrete used. Laboratory tests include tests of compressive strength, modulus of elasticity and tensile strength. Tensile strength was determined based on splitting tensile strength and bending tensile strength tests. In the case of bending tensile strength, test variants were performed, which differed in the test configuration (three-point bending test, four-point bending test), the size of the test specimens and the notch in the middle of their span. Numerical modelling of the slab&apos;s interaction with the subsoil is also preceded by modelling a small structural element, a beam with reinforcement. Numerical modelling itself is also based on the use of the concept identification of fracture mechanics parameters by laboratory tests. (C) 2020 by the authors.

Název v anglickém jazyce

Diagnostic and analysis of specific soil with ground water level and plain concrete slab interaction

Popis výsledku anglicky

This article deals with the selected task soil and structure interaction in case of a thin concrete slab and increased groundwater level. The soil and structure interaction is a complex task applied in cases when necessary to sufficiently consider the proposal&apos;s safety and economy. The particular topic dealt with is the performed specific experiment of a concrete slab on the subsoil that is subsequently simulated using 3D computing models. The performed experiment is a concrete slab with dimensions 2000 x 2000 mm. The concrete slab thickness was 150 mm. Computing models are based on the Finite Element Method and non-linear analyses. The specificity of the experiment is that it simulates extreme foundation conditions when the groundwater level almost reaches the foundation base. The experiment confirmed the significant effect of the groundwater level, the reduction of the overall bearing capacity of the slab and the rapid disturbance and collapse of the slab. Numerical models also described very well the occurrence of cracks and slab collapse. The results were in good agreement with the experimental testing. Major specificities include that the measuring and load test records are supplemented with an acoustic emission to identify concrete cracks. Findings from acoustic emission make it possible to describe the formation of cracks at a time when cracks are not visible and to verify the subsequent behaviour of the slab. The research task presented also includes detail laboratory tests of the concrete used. Laboratory tests include tests of compressive strength, modulus of elasticity and tensile strength. Tensile strength was determined based on splitting tensile strength and bending tensile strength tests. In the case of bending tensile strength, test variants were performed, which differed in the test configuration (three-point bending test, four-point bending test), the size of the test specimens and the notch in the middle of their span. Numerical modelling of the slab&apos;s interaction with the subsoil is also preceded by modelling a small structural element, a beam with reinforcement. Numerical modelling itself is also based on the use of the concept identification of fracture mechanics parameters by laboratory tests. (C) 2020 by the authors.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Acta Montanistica Slovaca

ISSN

1335-1788

e-ISSN

—

Svazek periodika

25

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

17

Strana od-do

427-443

Kód UT WoS článku

000642072500006

EID výsledku v databázi Scopus

2-s2.0-85101073568