Improved Trackbed Performance Over Low Strength Formation Soils Using Mechanically Stabilised Layers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00230410" target="_blank" >RIV/68407700:21110/15:00230410 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.saicerailwayandharbour.co.za/Portals/0/Presentations/R&H%20Division%20Symposia/2015/Improved%20Trackbed%20Performance%20(doc)%20-%20Cook.pdf" target="_blank" >http://www.saicerailwayandharbour.co.za/Portals/0/Presentations/R&H%20Division%20Symposia/2015/Improved%20Trackbed%20Performance%20(doc)%20-%20Cook.pdf</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Improved Trackbed Performance Over Low Strength Formation Soils Using Mechanically Stabilised Layers

Popis výsledku v původním jazyce

When constructing rail track over low strength sub-grade soil, it is necessary to improve the support provided by this foundation soil to allow the required track geometry to be established and maintained. Techniques such as chemical stabilisation or excavation and replacement can be both time consuming and expensive. The use of mechanically stabilised layers incorporating geogrids can allow a reduction in sub-ballast layer thickness resulting in reduced excavation and importation costs whilst providingrequired support levels to the subsequently placed ballast layer. Extensive investigation into the effectiveness of these geogrid mechanically stabilised granular layers has taken place over the last 30 years with the most recent research demonstratingthe enhanced improvements provided by multi-axial hexagonal stabilisation geogrids. This paper describes the research undertaken to demonstrate these benefits and will discuss ?live line? applications to illustrate practical application u

Název v anglickém jazyce

Improved Trackbed Performance Over Low Strength Formation Soils Using Mechanically Stabilised Layers

Popis výsledku anglicky

When constructing rail track over low strength sub-grade soil, it is necessary to improve the support provided by this foundation soil to allow the required track geometry to be established and maintained. Techniques such as chemical stabilisation or excavation and replacement can be both time consuming and expensive. The use of mechanically stabilised layers incorporating geogrids can allow a reduction in sub-ballast layer thickness resulting in reduced excavation and importation costs whilst providingrequired support levels to the subsequently placed ballast layer. Extensive investigation into the effectiveness of these geogrid mechanically stabilised granular layers has taken place over the last 30 years with the most recent research demonstratingthe enhanced improvements provided by multi-axial hexagonal stabilisation geogrids. This paper describes the research undertaken to demonstrate these benefits and will discuss ?live line? applications to illustrate practical application u

Druh

O - Ostatní výsledky

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

—

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2015

Kód důvěrnosti údajů

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