An excavation has to be made in a 10 m deep clay stratum underlain by a bed of sand. In a trial borehole made, the ground water was found to rise to an elevation of 3.5 m below ground level. The depth upto which excavation can be done safely without bottom becoming unstable due to uplift pressure of ground water will be m.

Q: The center-point loading flexure strength test was performed on a concrete beam having a cross…

A: To determine the flexure strength of concrete from the center-point flexure strength test.   Give,…

Sediment transport

Sediment transport or Soil transport is the movement of solid particles, usually due to the combination of gravitational forces acting on the sediment, and the movement of the liquid at which the sediment enters. Soil erosion occurs in natural systems where the particles are sandstones (sand, rocks), mud, or clay; the liquid is air, water, or ice; and the gravitational force that works to move particles to the landing surface. Sediment transportation or soil migration due to the movement of liquids occurs in rivers, lakes, lakes, oceans, and other bodies of water as a result of currents and waves. Transportation is also caused by glaciers as they flow, and to places on earth under the influence of wind. Soil erosion due to gravity alone is possible in most sloping areas, including hills, scarves, cliffs, and the continental shelf — the continental boundary of the slope.