TITLE:
Geo-Grid Combined with Concrete and Limestone Columns to Reduce the Embankment Subsidence Located on Inclined Layers of Soft Soil
AUTHORS:
Arash Rostami, Morteza Askari Ziarati, Nima Asghari, Saman Jahani
KEYWORDS:
Inclined Layering, Integration of Subsidence, Geo-Grid, Cement and Lime Columns, Software Plexis
JOURNAL NAME:
International Journal of Geosciences,
Vol.7 No.4,
April
27,
2016
ABSTRACT: Soft soil has low shear strength and its density is high;
construction of embankments on them would cause problems such as large and
non-uniform subsidence. One way to avoid these subsidence is using of geo-grid
combined with cement and lime columns. Geo-grids due to their tensile strength,
and cement and lime columns due to their bearing capacity and their body
friction, reduce embankment subsidence. Extensive researches have been done in
order to reduce the subsidence of the embankments located on the roads, but few
studies have being done about the inclined embankments on soft soil layers. In
this paper, the road embankment has been located on inclined soft soil layers;
the study will try to reduce embankment subsidence and uniform them using
geo-grid combined with cement and lime column subsidence. The results show that
the realization of this issue will cause subsidence reduction and uniformity in
the embankment surface.