A layer of silty soil of thickness 5 m lies below the ground surface at a particular site and below thesilt layer lies a clay stratum. The ground water table is at a depth of 4 m below the ground surface. The following data are available for both the silt and clay layers of soil. Silt layer: ?10= 0.018 mm, e= 0.7, and Gs = 2.7 Clay layer: e = 0.8 and Gs = 2.75 Required: (a) Height of capillary rise, (b) capillarypressure, (c) the effective pressure at theground surface, at groundwater table (GWT)level, at the bottom of the silt layerand at a depth of H =6 m below groundlevel, and (d) at a depth 2 m below ground level.(Sketch or draw the stress distribution diagram).
A layer of silty soil of thickness 5 m lies below the ground surface at a particular site and below thesilt layer lies a clay stratum. The ground water table is at a depth of 4 m below the ground surface.
The following data are available for both the silt and clay layers of soil.
Silt layer: ?10= 0.018 mm, e= 0.7, and Gs = 2.7
Clay layer: e = 0.8 and Gs = 2.75
Required:
(a) Height of capillary rise,
(b) capillarypressure,
(c) the effective pressure at theground surface, at groundwater table (GWT)level, at the bottom of the silt layerand at a depth of H =6 m below groundlevel, and
(d) at a depth 2 m below ground level.(Sketch or draw the stress distribution diagram).
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