Numerical analysis of geocell reinforced ballast overlying soft clay subgrade

Sireesh Saride , Sailesh Pradhan , Sitharam T.G. , Anand J. Puppala

Abstract

Geotextiles and geogrids have been in use for several decades in variety of geo-structure applications including foundation of embankments, retaining walls, pavements. Geocells is one such variant in geosynthetic reinforcement of recent years, which provides a three dimensional confinement to the infill material. Although extensive research has been carried on geocell reinforced sand, clay and layered soil subgrades, limited research has been reported on the aggregates/ballast reinforced with geocells. This paper presents the behavior of a railway sleeper subjected to monotonic loading on geocell reinforced aggregates, of size ranging from 20 to 75 mm, overlying soft clay subgrades. Series of tests were conducted in a steel test tank of dimensions 700 mm

Key Words

ballast; geocells; model studies; numerical simulations; soft clay

Address

Sireesh Saride — Department of Civil Engineering, Indian Institute of Technology Hyderabad, India
Sailesh Pradhan, Sitharam T.G. — Department of Civil Engineering, Indian Institute of Science, Bangalore, India
Anand J. Puppala — Department of Civil Engineering, The University of Texas at Arlington, Texas, USA

PDF Viewer

Preview is limited to the first 3 pages. Sign in to access the full PDF.

← Back to Volume 5, No. 3