Determine the effective vertical stress at depths of 8m

Reference no: EM13560202

A layer of sand extends from ground level to a depth of 11m and overlies a layer of clay, of very low permeability, 8m thick. The water table is 7m below the surface of the sand. The saturated unit weight of the sand is 19kN/m3 and that of the clay 20kN/m3; the unit weight of the sand above the water table is 16kN/m3. Over a short period of time the water table rises of 3m and is expected to remain permanently at this new level. Determine the effective vertical stress at depths of 8m and 12m below ground level (a) immediately after the rise of water table and (b) several years after the rise of the water table.

Reference no: EM13560202

Questions Cloud

Find the increase in magneticfield through the loop : A circular loop with a radius of .200m is placed in a uniformmagnectic field of magnitude 0.850T. find the increase in magneticfield through the loop

Obtain the magnitude of the angular acceleration of cylinder : A constant horizental force of 12 N is applied to a uniformsolid cylinder by fishing line wrapped around the cylinder. obtain the magnitude of the angular acceleration of the cylinder

What is the maximum bending moment of the beam : A 27ft beam has a uniform load of 6kip/ft. along its entire length. From left to right x=0ft to x=27ft. At x=0 ft it is pinned and at x=18 ft there is a roller. So, the 9 ft end section is cantilevered. What is the maximum bending moment of the beam?

What is the number concentration : An aerosol with a lognormal size distribution has a count median diameter of 2.0 micron and a geometric standard deviation of 2.2. If the mass concentration is 1 mg/cubic meter what is the number concentration? Assume spherical particles with density..

Determine the effective vertical stress at depths of 8m : A layer of sand extends from ground level to a depth of 11m and overlies a layer of clay, of very low permeability, 8m thick. The water table is 7m below the surface of the sand.

What is the net force acting on the proton : A proton travels through uniform magnetic and electric fields.The magnetic field is B = -2.50i mT. what is the net force acting on the proton if theelectric field is 4.00kV/m

Explain product formed from the reaction of sodium methoxide : Draw the structure of the organic product formed from the reaction of sodium methoxide with 1-chloro-4-nitrobenzene. Add formal charges.

Determine the empirical formula of the compound : The percent composition (by mass) of a compound is 40.0% carbon, 53.0 % oxygen and the rest is hydrogen. Find the empirical formula of the compound.

Explain a mixture of nitric and sulfuric acids : Nitrobenzene can be nitrated with a mixture of nitric and sulfuric acids. Draw the product that contains two nitro groups. Include all formal charges.

User Account

All Pages