A bridge column carries a downward factored ultimate load of 310 kN and a service load of 200 kN. It is underlain by a lightly overconsolidated clay (OCR = 2) with the following engin-eering properties: su = 250 kPa, Cc = 0.20, Cr = 0.05, e = 0.7, and g = 15.0 kN/m3 above the groundwater table and 16.0 kN/m3 below. The groundwater table is at a depth of 1.0 mbelow the ground surface. Using LRFD, determine the design footing width clearly identifyingwhether it is controlled by settlement or bearing capacity.

Q: A silty sand fill 4.5 meters thick and an estimated density of 20 kN/m³ is to be placed over 4.0 m…

A: eo = 1.255Cc = 0.29Cr = 0.035Cv = 0.79 m2/yrNOTE : As per guidelines, first 3 parts are solved.…

Q: a. Determine the equivalent horizontal coefficient of permeability b. Determine the equivalent…

A: The problem is asking us to find the equivalent horizontal and vertical coefficients of permeability…

Q: The profile at a site consists of 5m of sand overlying 10m of compressible clay, which in turn…

A: The excess pore water pressure is developed in the clay layer by immediately placing the surcharge…

Q: The image below depicts the sand layer on top of the clay layer, with groundwater 2 meters below the…

A: Given, Depth of groundwater table = 2 m   To find : Total, effective and horizontal stress at point…

Q: A storage silo is supported on a circular foundation which has a diameter of 20 feet. The total…

A: We have relationΔσ=q1-1Rz2+132so,R=202=10ftz=15ftP=300,0000q=300,0000π4202=954.93psf

Q: A layer of silt 3.5 m thick underlain by 3 m thick tay layer. The water table is located at 2.5 m…

A:

Q: The profile at a site consists of 5 m of sand overlying 10 m of compressible clay, which in turn…

A: The excess pore water pressure developed immediately after placing the stress of 200 kPa is…

Q: How high should the groundwater table be so that the effective stress at C is equal to 110 kPa?…

A: Given data in question  Effective stress at C Void ratio Specific gravity  To find out  Depth of…

Q: Q5: Figure below shows a soil profile. The uniformly distributed load on the ground surface is Ao.…

A:

Q: A soil profile is shown in the figure below. If a foundation load Ao=1000 lb/ft² is applied,…

A: Given:  Increase in pressure = 1000lb/ft2 Height of clay layer = 17ft Initial Void Ratio =0.9 Pre…

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.