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A three-lane northbound section of interstate (with the design lane conservatively designed) has rigid pavement (PCC) and was designed with a 10-inch slab, 90% reliability, 700 lb/in2 concrete modulus of rupture, 4.5 million lb/in2 modulus of elasticity, 3.0 load transfer coefficient, and an overall standard deviation of 0.35. The initial PSI is 4.6 and the TSI is 2.5. The CBR is 2 with a drainage coefficient of 1.0.
The road was designed exclusively for trucks that have one 24-kip tandem axle and one 12-kip single axle. It is known from weigh-in-motion scales that there have been 13 million 18-kip-equivalent single-axle loads in the entire northbound direction of this freeway so far.
If a section of flexible pavement is used to replace a section of the PCC that was removed for utility work, what structural number should be used so that the PCC and flexible pavements have the same life expectancy (the new life of the flexible pavement and the remaining life of the PCC)?
A 60-Hz, 765-kV three-phase overhead transmission line has four ACSR 900 kcmil 54/3 conductors per phase. Determine the 60-Hz resistance of line in ohms per kilometer per phase at 50°C.
Consider the effects of radiation, as well as convection, and express your result in terms of the velocity, thickness, and properties of the sheet (V, d, p, cp, e), the average convection coefficient hw associated with the cross flow, and the envi..
A structure that carried communication from one side of the CNS to the other is a/an:a) nerve rootb) ganglionc) projection tract
Discuss why it is often stated that inductors and capacitors are "dual" elements. Include similarities and differences that must be taken into account when performing calculations with each element and how these two elements are capable of exchang..
A coil with 380 windings is wound around a cast iron ring. the cast iron ring has a mean diameter of 125mm and a cross-sectional area of 600mm squared. The magnetic field strength is 3000Am while the relative permeability of the core is 780. deter..
Environmental engineering, CEE 357 Winter 2014. HW#6 Assignment: - Find the ultimate BOD of the river water as it enters the lake. Find the value of the rate constant for BOD utilization in the river, k d,riv .
Produce the most all encompassing definition of technology while discussing Heidegger's article. Having discussed willed ignorance during the critical thinking discussion, now is your chance for some self-reflection.
What are intervertebral discs and how are they helpful to the body?
The saturation flow rate of the approach is 1800 veh/h, the cycle length is 60 seconds, and the effective green time is 40 seconds. Determine the total vehicle delay until complete queue clearance.
What is the average delay per vehicle resulting from the accident (assuming D/D/1 queuing)?
What are the density, volume-to-capacity ratio, and level of service of the upgrade segment before and after the bus strike?
determine the value of the suspended tension load at the top of drill pipe and using the graph of pore/fracture pressure for the Holly Field propose a casing scheme for the well using the graphical approach. Discuss the suitability of the selected..
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