Under-reamed piles are generally

More Questions from Soil Mechanics and Foundation Engineering

• Pick up the correct statement from the following:
• Shallow foundations in geotechnical engineering — the minimum depth D of a footing carrying a heavy load is commonly estimated from bearing considerations using which formula (use q for allowable bearing pressure, gamma for unit weight of soil, and phi for angle of shearing resistance)?
• Soil mechanics terminology — the ratio of the weight of a given volume of soil solids to the weight of an equal volume of distilled water at the same temperature is known as:
• Particle-size distribution indices — the coefficient of curvature (Cc, also called coefficient of gradation) for a soil gradation curve is defined as:
• Seepage force in soils — identify the complete and correct description of seepage force with respect to flow-net geometry and hydraulic parameters.
• Refraction of flow lines at soil interfaces — a flow line meets the interface between soils of permeability k1 and k2 making angles theta1 and theta2 with the normal before and after crossing. According to the law of deflection at a boundary between dissimilar isotropic soils, which relation holds?
• Moisture content determination — which method gives the most accurate routine measurement of soil water content in laboratory practice?
• Soil phase relationships — the ratio of the volume of voids to the volume of soil solids in a given soil mass is called:
• Atterberg limits interpretation — the liquidity index (LI) is defined as which percentage ratio of natural water content w, plastic limit PL, and plasticity index PI?
• Rankine active condition — the active earth pressure of a cohesionless soil is proportional to which expression in terms of the friction angle phi?

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