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A square footing located on a dense sand is required to carry a dead load of 200 kN and a live load of 300 kN at an eccentricity not to exceed of 10% of the width. The embedment depth is 1 m. Groundwater level is at 1 m below the ground surface. Calculate the size of the footing using CSM for ASD and LRFD. At a depth B/2 below the bottom of the footing, the soil parameters are
from direct shear tests, OCR
Assume the soil above the groundwater level to be saturated and v' = 0.35. Determine the factor of safety of the footing (use the footing size designed according to CSM) using the conventional method.
calculate the chord lenght between stations 75.00 and 75.00 on a circular curve with Da=5.5 degrees.
A truck spils 1 gallon of benzene into an aquifer with an area= 50ft^2 Benzene has a solubility of 1750 ppm, and a specific gravity of 0.873. The aquifer ahs a porosity of 0.25, a hydraulic gradient of 0.004 and a hydraulic conductivity of 1000 gpd/f..
what is the maximum weight of the crate that the system can support? What is the angle theta required for equilibrium?
(a) Determine the ratio of model flow velocity to prototype flow velocity over the spillway for dynamic similitude. (b) Determine the ratio of model discharge to prototype discharge for dynamic similitude.
Two level sections of an east-west highway (G = 0) are to be connected. Currently, the two sections of highway are separated by a 4000-ft (horizontal distance), 2 % grade.
a) Calculate Darcy's velocity of the groundowater as well as the amount of water that passes through the aquifer each day. b) for the same aquifer, determine the seepage velocity of water through aquifer if the effective porosity is 32%.
In older houses one will often find steel waterpipings whereascopper tubing is now generally used. While carrying out renovationsplumbers often interconnect the steel pipings with Copper tubings.Is this a sound practice? Explain.
List some of the advantages and disadvantages of rectangular primary sedimentation tanks over circular sedimentation tanks which must be considered prior to the selection.
create a primary function that uses a function handle with a nested function to compute the ninimum of the function 20x^2-200x+12 over the range 0
A wood board with a 2in. by 4in. cross section is subjected to a tensile load of 100 lb. Determine the average normal stress and average shear stress developed in the wood fibers that are oriented at 30 degrees with the axis of the board.
salary 65000 per year, jane plans to retire in 25 years. Annual anticipated increaase is 3000 a year. she plans to deposite 5% of her yearly salery, into retirment fund that earns 7% intrest compounded daily.
If the initial concentration of parathion in the runoff from the agricultural field is 3 ppb, the velocity of the river is 2.3 miles/day, how many days will the fish hatchery have to contain river water in holding tanks until the parathion concent..
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