Site Investigation and Shear Strength Properties of Soil
A. C. Apata *
Department of Civil and Environmental Engineering, University of Lagos, Nigeria.
Ismail Abdullahi
Department of Civil and Environmental Engineering, University of Lagos, Nigeria.
U. U. Imoh
Civil Engineering Department, Akwa Ibom State University, Nigeria.
Praise Dawodu Onimisi
Department of Civil and Environmental Engineering, University of Lagos, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
This study examined the soil's shear strength qualities at various depths with natural soil moisture content. At various depths below the surface of the ground, ranging from 400mm to 24.75m for point 1 and 400mm to 11.25m for point 2, the soil sample was taken using the drilling method. Wet sieve analysis was used to determine the distribution of the grains, and each soil sample's natural moisture content was calculated. Other fundamental tests included the Atterberg limit test, specific gravity, and sieve analysis. The data revealed that silt and clay make up the soils at points 1 and 2, with the soil at point 2 being more plastic than the soil at point 1. In Addition, it was discovered from the results that soil shears more quickly at increasing in the depth of from ground surface and that the cohesiveness index and angle of internal friction are negatively associated.
Keywords: Soil, moisture content, shear strength, liquid limit, plastic limit, plasticity index