The Faculty of Engineering

West Indian Journal of Engineering

Archived Issue

Volume 28: Number 2-January 2006

Contents

Editorial

Foamy Oil Production in Trinidad - J.A. Babwah, R.A. Dawe and W. Mellowes.
Abstract | View PDF

Science, Technology and Innovation in Caribbean Countries:  Performance Indicators of a Generic Model - C.K. Sankat, K.F. Pun and C.B. Motilal. Abstract | View PDF

Engineering Properties of Major Soils Used in Cricket Pitches in Trinidad - E.I. Ekwue, D.Z. Lall and R.J. Stone. Abstract | View PDF

Osmotic Dehydration and Microwave-Drying of Guava Fruit
Part 2: Microwave-Convective and Microwave-Vacuum-Drying - S. Geyer, P.S. Sunjka and G.S.V. Raghavan. Abstract | View PDF

The Environmental Significance of Some Microscopic Organisms Around Nevis, West Indies - B. Wilson. Abstract | View PDF

Dynamic Response of Footing Resting on a Layered Soil System - D.K. Baidya and A. Mandal.View PDF

Abstract
Dynamic response of foundations depend on several factors such as the shape and size of the foundation, the depth of embedment of the foundation, static and dynamic force levels and the type and extent of soil below the foundation.  This paper presents an investigation of the dynamic behavior of foundations resting on two- and three- layered soil systems.  A number of model block vibration tests are carried out on differently-prepared, layered beds using a Lazan-type mechanical oscillator.  A steel footing of 0.3m, x 0.3m x 0.025m size is used as a model footing.  Two types of two-layered beds (a soft layer over a stiff layer and vice versa) and two types of three-layered beds (a soft layer between two stiff layers and a stiff layer between two soft layers) are prepared using sand and sawdust.  From the experimental investigations, it is observed that both position and thickness of the layer significantly influence the dynamic response of the foundations.  Dynamic response of the foundations on different layered systems is also obtained by elastic, half-space theory representing the layered system by an equivalent homogeneous half-space and then compared with the response obtained from the experimental investigation.  Comparisons showed encouraging agreement between the test results that obtained from the analysis.

Experimental Investigation of the Performance of a Design Model for Vapour Compression Refrigeration Systems - M.A. Akintunde, C.A. Adegoke and O.P. Fapetu. Abstract | View PDF

13th World Conference in Earthquake Engineering 2004 – Caribbean Implications and Recommendations - R.P. Clarke . Abstract | View PDF