BEHAVIOR OF EXPANDED POLYSTYRENE AS LIGHTWEIGHT FILLER IN RETAINING WALLS WITH INTERMEDIATE SLABS

Keywords: STABILITY, NUMERICAL ANALYSIS, EXPANDED POLYSTYRENE, LIGHTWEIGHT FILLER, REINFORCEMENT

Abstract

THE PRESENT STUDY EXPLORES A RETAINING WALL WITH AN INTERMEDIATE SLAB. TO REDUCE THE LATERAL EARTH PRESSURE ON THE WALL, THE SUBSTITUTION OF PART OF THE SOIL BY BLOCKS OF EXPANDED POLYSTYRENE (EPS) WITH HIGH DENSITY IS PROPOSED, WHICH COULD RESULT IN SIGNIFICANT ECONOMIC SAVINGS. ALSO, THE POSSIBILITY OF BUILDING THE WALL ELEVATION WITH SMALLER THICKNESS (PREEXISTING WALL REINFORCEMENT) WILL BE ANALYSED. TO DO THIS, THE SITUATION AND OPTIMUM GEOMETRY OF THE EPS BLOCKS WILL BE STUDIED IN DETAIL. THE OBTAINED RESULTS ALLOW US TO AFFIRM THAT THE REDUCTION IN PRESSURE IS VERY SIGNIFICANT IF THE BLOCKS ARE ARRANGED WITH THE PROPER GEOMETRY AND SITUATION OVER THE SLIDING PLANE BUT WITHOUT ELIMINATING THE BENEFICIAL EFFECT OF THE WEIGHT OF THE GROUND LOCATED OVER THE SLAB.

Author Biographies

JOSE MIGUEL DAVILA, University of Huelva. Andalucia Avenue s/n, 21007 - Huelva, Spain

Mining, Mechanical, Energetic and Construction Engineering Department

Phd, Director of the Master's Degree in Industrial Engineering

JUAN CARLOS FORTES, University of Huelva. Andalucia Avenue s/n, 21007 - Huelva, Spain

Mining, Mechanical, Energetic and Construction Engineering Department

Phd, Director of the Master's Degree in Maintenance Engineering

ANTONIO JARAMILLO-MORILLA, University of Seville. Reina Mercedes Avenue 2, 41012, Seville, Spain

Department of Structure,  Building and Geotechnical Engineering

Phd

MARÍA LUISA DE LA TORRE, University of Huelva. Andalucia Avenue s/n, 21007 - Huelva, Spain

Mining, Mechanical, Energetic and Construction Engineering Department

Phd, Director of the Mining, Mechanical, Energetic and Construction Engineering Department

ROCIO PANCHO, University of Huelva. Andalucia Avenue s/n, 21007 - Huelva, Spain

Mining, Mechanical, Energetic and Construction Engineering Department

Published
2019-01-04
Section
Articles