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A static pile load test was carried out on a 0.8-m-diameter steel pipe pile installed 21 m into a loose-to-medium sandy soil. The pile was driven into the soil. Selected load- displacement data are shown in the table on the next page.
(a) Determine the allowable load if the serviceability limit state is 12 mm.
(b) Is the maximum load the ultimate load? Justify your answer.
(c) Discuss some of the issues you would consider in the interpretation of the data.
The industrial discharges to the municipal sewers are 57 m3/day at 1,800 mg/L BOD from a slaughterhouse and 70 m3/day containing 32 kg of BOD from a soup-canning plant.
Compute and compare the hydraulic conductivity (m/s) of a formation with respect to the three liquids below. The formation has a permeability k = 0.1 darcy and g = 9.8 m/s2.
Explain the log growth phase of population generation showing the population growth curve (S curve). Deduce the equation for this method of population projection.
Two pipes of identical length and material are connected in parallel. The diameter of one is twice the diameter of the other. What is the ratio of the flow rates (Q2/Q1) in the two pipes
What determines the minimum value of the duration of the output pulse
An intersection approach volume is 1,500 veh/h and includes 12% left turns with a through-vehicle equivalent of 2.3 tvu's/left turn. What is the total equivalent through volume on the approach
Based on your results, determine the after-tax income that you will need in order to afford the residence. Note that being qualified for a mortgage does not necessarily mean that one can actually "afford" the residence.
A volume of 1.5x106 m3 of water is then pumped out of the aquifer resulting in a decrease of the groundwater level to 208.8 m. Assuming that the water table in the aquifer responds similarly
A water treatment plant is being designed to process 50,000 m3/d of water. Jar testing and pilot-plant analysis indicate that an alum dosage of 40 mg/L with flocculation at a Gt value of 4.0 × 10^4 produce optimal results at expected water temperatur..
A 2.45 m wide rectangular channel has a bed slope of 0.0004 and Manning's roughness coefficient n of 0.015. For a discharge of 2.83 m^3/s, determine the type of water surface profile for depths of 1.52 m, 0.61 m, 0.30 m.
To verify the constant of a particular prism, a straight line EFG is laid out. The EDM instrument is first set up at E, with the following measurements recorded: EG = 426.224 m, EF = 277.301 m.
The composite shaft is made of a steel sleeve, which is bonded to a brass core. The outer diameters of the two parts are d1 = 40 mm for the brass core and d2 = 50 mm for the steel sleeve.
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