Engineering, 21.12.2019 06:31, cchave9563
A2m thick extensive fill is to be placed directly onto a 2 m thick layer of saturated sandy gravel, below which is a 6m thick layer of saturated clay. the fill will have a unit weight of 20 kn/m^3 after placement. the sandy gravel layer has a unit weight of 18 kn/m3 , an initial void ratio of 0.65, a swell index of 0.008, a compression index of 0.0122, and an initial void ratio of 0.60. the clay layer has a unit weight of 15.9 kn/m^3 , an initial void ratio of 1.10, a recompression index of 0.15, and compression index of 0.378. the preconsolidation stresses for the sandy gravel and clay were estimated to be 26 kn/m^3 and 40 kn/m^3 , respectively.
1. determine the ultimate consolidation for the site due to the addition of the extensive fill. clearly state any assumptions made for your solution (you may neglect those required for the method, e. g. homogenous, isotropic, state what you are doing at each step of your solution.
Answers: 1
Engineering, 04.07.2019 18:10, ahmedeldyame
Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.
Answers: 1
Engineering, 04.07.2019 18:10, niyawilliams23
Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10
Answers: 1
Engineering, 04.07.2019 18:10, soreese02
An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature
Answers: 2
Engineering, 04.07.2019 18:10, Larkinlover703
Items are similar to the free issue items, but their access is limited. (clo5) a)-bin stock items free issue b)-bin stock controlled issue c)-critical or insurance spares d)-rebuildable spares e)-consumables
Answers: 1
A2m thick extensive fill is to be placed directly onto a 2 m thick layer of saturated sandy gravel,...
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