The Role of Expanded Polystyrene and Geocell in Enhancing the Behavior of Buried HDPE Pipes under Trench Loading Using Numerical Analyses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F20%3A43958848" target="_blank" >RIV/49777513:23210/20:43958848 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2076-3263/10/7/251" target="_blank" >https://www.mdpi.com/2076-3263/10/7/251</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/geosciences10070251" target="_blank" >10.3390/geosciences10070251</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Role of Expanded Polystyrene and Geocell in Enhancing the Behavior of Buried HDPE Pipes under Trench Loading Using Numerical Analyses

Popis výsledku v původním jazyce

In recent years, much research has focused on the use of various materials for relieving and strengthening soil, e.g. steel reinforcing ribs, geosynthetics, geocells, waste tires and expanded polystyrene (EPS). EPS is being used more and more in geo-infrastructures, being a super-light material to replace part of the soil and decrease the ground pressure on buried structures. This paper presents an experimental and numerical analysis of the effectiveness of expanded polystyrene and geocell reinforcement for ameliorating the behavior of unpressurized buried pipes exposed to surface loading. A 3-D FEM model of soil, geofoam, geocell, and piping was generated in ABAQUS, and the model was verified by experimental analyses conducted at a laboratory. The results show that reinforcing the soil cover with geocell and geofoam has a substantial impact on decreasing the maximum surface settlement of around 30% and maximum pipe crown displacement by up to 17%. Also, the EPS block density can reduce the maximum pipe crown displacement substantially.

Název v anglickém jazyce

The Role of Expanded Polystyrene and Geocell in Enhancing the Behavior of Buried HDPE Pipes under Trench Loading Using Numerical Analyses

Popis výsledku anglicky

In recent years, much research has focused on the use of various materials for relieving and strengthening soil, e.g. steel reinforcing ribs, geosynthetics, geocells, waste tires and expanded polystyrene (EPS). EPS is being used more and more in geo-infrastructures, being a super-light material to replace part of the soil and decrease the ground pressure on buried structures. This paper presents an experimental and numerical analysis of the effectiveness of expanded polystyrene and geocell reinforcement for ameliorating the behavior of unpressurized buried pipes exposed to surface loading. A 3-D FEM model of soil, geofoam, geocell, and piping was generated in ABAQUS, and the model was verified by experimental analyses conducted at a laboratory. The results show that reinforcing the soil cover with geocell and geofoam has a substantial impact on decreasing the maximum surface settlement of around 30% and maximum pipe crown displacement by up to 17%. Also, the EPS block density can reduce the maximum pipe crown displacement substantially.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LO1502" target="_blank" >LO1502: Rozvoj Regionálního technologického institutu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Geosciences

ISSN

2076-3263

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

15

Strana od-do

—

Kód UT WoS článku

000554234800001

EID výsledku v databázi Scopus

2-s2.0-85087380655