FINITE-ELEMENT ANALYSIS OF STRENGTHENING THE SUBGRADE ON THE BASIS OF BORING AND MIXING TECHNOLOGY

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00356834" target="_blank" >RIV/68407700:21220/21:00356834 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.21307/tp-2021-034" target="_blank" >https://doi.org/10.21307/tp-2021-034</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21307/tp-2021-034" target="_blank" >10.21307/tp-2021-034</a>

Jazyk výsledku

angličtina

Název v původním jazyce

FINITE-ELEMENT ANALYSIS OF STRENGTHENING THE SUBGRADE ON THE BASIS OF BORING AND MIXING TECHNOLOGY

Popis výsledku v původním jazyce

One of the effective techniques to strengthen the subgrade is boring and mixing technology, which is based on the immersion of vertical elements - piles into the subgrade. This method of strengthening significantly affects the stress state of the track superstructure. Two options of the placement of strengthening elements are examined in this paper. To determine the influence of position of strengthening elements on the stress state of the track superstructure, appropriate finite-element models were created. The models fully reflect the geometric and deformation characteristics of a real subgrade, which is strengthened by piles. The calculated stress state of the track superstructure is shown and analyzed in this paper. The main contribution of the paper lies in optimization of the geometric parameters of the technology to reduce the stress state of the "track superstructure-subgrade-soil basement" system. The results show that the location of piles near the rails is more effective than the location of piles near the ballast section.

Název v anglickém jazyce

FINITE-ELEMENT ANALYSIS OF STRENGTHENING THE SUBGRADE ON THE BASIS OF BORING AND MIXING TECHNOLOGY

Popis výsledku anglicky

One of the effective techniques to strengthen the subgrade is boring and mixing technology, which is based on the immersion of vertical elements - piles into the subgrade. This method of strengthening significantly affects the stress state of the track superstructure. Two options of the placement of strengthening elements are examined in this paper. To determine the influence of position of strengthening elements on the stress state of the track superstructure, appropriate finite-element models were created. The models fully reflect the geometric and deformation characteristics of a real subgrade, which is strengthened by piles. The calculated stress state of the track superstructure is shown and analyzed in this paper. The main contribution of the paper lies in optimization of the geometric parameters of the technology to reduce the stress state of the "track superstructure-subgrade-soil basement" system. The results show that the location of piles near the rails is more effective than the location of piles near the ballast section.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20104 - Transport engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

TRANSPORT PROBLEMS

ISSN

1896-0596

e-ISSN

2300-861X

Svazek periodika

16

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

9

Strana od-do

189-197

Kód UT WoS článku

000662880100016

EID výsledku v databázi Scopus

2-s2.0-85109520482