diplomsko delo
Klara Šoster (Author), Primož Jelušič (Mentor), Bojan Žlender (Co-mentor)

Abstract

Diplomska naloga prikazuje izračun posedka pod enakomerno brezkrajno pasovno obtežbo, končni čas posedanja ter časovni razvoj posedka. Izračun posedka je bil izračunan z analitično metodo, ki temelji na srednjem modulu stisljivosti. Numerična analiza posedka pa je bila izvedena z računalniškim programom Plaxis, ki temelji na metodi končnih elementov. V uvodnem delu so opisane nekatere osnovne zakonitosti mehanike tal in modeli za simulacijo odziva zemljine na spremembo napetosti. V nadaljevanju je prikazan analitični izračun časovnega razvoja posedka z obrazložitvijo uporabljenih metod in enačb. Prikazani pa so tudi koraki modeliranja v programu Plaxis, ki so potrebni za numerično analizo časovnega razvoja posedka. Izvedena je primerjava rezultatov analitične in numerične metode na podlagi velikosti posedka in končnega časa posedanja. Rezultati analitične in numerične analize izkazujejo veliko stopnjo ujemanja, saj so bili izračuni izvedeni na podlagi enakih materialnih lastnosti. Numerična analiza pa vendarle podaja natančnejšo oceno posedka in končni čas posedanja, saj je pri numerični analizi zemeljski pol-prostor razdeljen na manjše elemente kot pri analitični metodi izračuna posedka. Računalniški program prav tako omogoča natančno določitev začetnih efektivnih napetosti in spremembo napetosti, ki so posledica obremenitve ali konsolidacije.

Keywords

posedek;temeljenje;mehanika tal;posedanje;konsolidacija;numerična analiza;diplomske naloge;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UM FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Publisher: [K. Šoster]
UDC: 624.131.526(043.2)
COBISS: 135980803 Link will open in a new window
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Downloads: 23
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Other data

Secondary language: English
Secondary title: Analytical and numerical analysis of time-dependent settlement
Secondary abstract: The diploma thesis shows the calculation of settlement under a strip load and the calculation of primary consolidation settlement. The settlement calculation was calculated using an analytical method based on the average compressibility modulus. The numerical analysis of the settlements was performed using the Plaxis computer program based on the finite element method. In the introductory part, some basic laws of soil mechanics and models for simulating the response of the soil to stress changes are described. This is followed by an analytical calculation of the primary consolidation settlement with an explanation of the methods and equations used. The modeling steps in the Plaxis program required for numerical analysis of the time development of settlement are also presented. A comparison of the results of the analytical and numerical methods is made, based on the final total settlement and the time required for the primary consolidation to be completed. The results of the analytical and numerical analysis show a high degree of agreement since the calculations were performed based on the same material properties. However, the numerical analysis provides a more accurate estimate of settlement and final settlement time because the numerical analysis divides the earth half-space into smaller elements than the analytical method of settlement calculation. The computer program also makes it possible to determine the initial effective stresses and to modify the stresses resulting from loading or consolidation.
Secondary keywords: settlement;consolidation;numerical analysis;
Type (COBISS): Bachelor thesis/paper
Thesis comment: Univ. v Mariboru, Fak. za gradbeništvo, prometno inženirstvo in arhitekturo, Gradbeništvo
Pages: 1 spletni vir (1 datoteka PDF (VIII, 28 f.))
ID: 15876558