Abstract: The present work analyze the efficiency of using ground source heat pump for inner space heating/cooling and hot water production in new energy-efficient buildings in Romania. Such analysis would be a way to answer to the problems resulting from the continuous increase of energy consumption. The present study describes the building performance of a 2010 construction from Timisoara, designed as an energy-efficient house. The energy consumption of this project was followed for 4 years and a new improvement is planned to be implemented.

• Publication Date: 19-Apr-2015
• DOI: 10.15224/978-1-63248-042-2-12
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Abstract: This paper studies the effects of using sandgeofoam beads mixture as the backfill of cantilever rigid retaining walls on the factor of safeties against possible modes of failure. With this regard, concrete walls with specified geometrical properties are assumed and backfill material properties are extracted from a previously achieved research work. Factor of safeties against failure modes including transitional, overturning and deep-seated for different heights of wall and geofoam-sand mass ratio were obtained. Results show that unlike gravity rigid retaining walls backfilled with the sandgeofoam beads, cantilever walls don’t follow a steadily increasing trend in two of the failure mode’s factor of safeties.

• Publication Date: 19-Apr-2015
• DOI: 10.15224/978-1-63248-042-2-13
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