§Problem 1: Two meters of fill (=2.04 Mg/m3) are compacted over a large area (thus 100% of its influence is felt throughout the depth). Above the compacted fill, a 3*4m spread footing loaded with 5000 kN is placed. Assume that the average density of the soil is 1.68 Mg/m3, and the water table is very deep. Then it is required to (a) compute and plot the profile of effective vertical stresses at the middles of five 2m intervals or layers of depth, prior to fill placement. (b) compute and plot the stresses at the same intervals due to adding the fill. (c) compute and plot the stresses with depth due to the addition of 3*4 m footing, using the equations below, for the increase in stresses below the corner of a rectangular area of width B and Length L. (assume that, the weight of footing plus backfill equals weight of soil removed).

§Problem 2 For the previous problem. It was assumed that the settlement of the footing would occur from settlement in the 2m fill below the footing and the 10m layers of medium sand. Consider that, the values of E and ν are 20 MPa and 0.3, respectively, (for both materials). Assuming a linear, isotropic, elastic material behaviour, calculate and plot The Total Elastic Settlement Profile.

Assessment 4.0: Management of Quality

Produce a report (min 300 words) detailing construction methodology and the process for the management of quality of installation and progress reporting for either of the following:

• Plain line track renewals
• S&C Installation

Include in the report an outline the management of quality of high output techniques for the following:

• Plain line track renewals
• Ballast cleaning
• S&C Modular Installation methods

Also include the management of quality of track renewals process for special circumstances including:

• Tunnels
• Viaducts
• Other local areas of specific constraint (if appropriate)

You are assigned to design the decision table of the year-end bonus. Everyone has a basic amount of $500. Anyone who worked for over 5 years would have an addition $2000. Anyone who got top sales at any month during the year would have an extra $1000. However, if anyone who got a warning from the company would drop all the bonuses. Draw the decision table based on the above information.

Question 5 (5 + 3 + 2 Marks)
a) What is unified classification of soil? Explain the classification and
nomenclature of Gravels, Sands, Silts and Clays.
b) Explain well-graded, poorly graded and gap-graded soil showing the graph
between percentage passing and grain size.
c) The grain size analysis was conducted and following results are obtained from
graph. The d 10 = 0.15, d 30 =0.425 & d 60 =1.5. Determine the grading of the soil.

A rectangular laboratory channel has a bottom width of 6.0 in, a Manning roughness coefficient of n = 0.010, longitudinal slope of 2% (So = 0.02). The discharge is 180 gpm. Assume α = 1. The water depth is 2.5 inches at Point A, and 3.0 inches at Point B. The normal depth is 2.066 in and critical depth is 3.228 in.

(a) Use the direct step method with one step (Δy = 0.5 in) to determine the distance from Point A to Point B. Do this by hand, using a calculator. Show all work.

(b) Which point is upstream, A or B? Explain the reason for this answer.

1) What length of runway is required for a Boeing a B-727-000 aircraft given the following design conditions?

Normal maximum temperature 75°F ˜ 24°C

Airport elevation                                      4000 ft (1219 m)

Take-off weight                                        200,000 lb (99,873 kg)

Maximum landing weight                        175,000 lb

Max. haul distance                                   1500 mile

Effective runway gradient                       0.85 percent

1) A utility airport is being planned to serve a small community. The visual runway is to be 3600 ft. long. Indicate whether or not the following objects will be considered obstructions to air navigation by the FAA. (HINT: 1 nautical mile = 6076 ft.)

a) A 220-ft radio tower that is not in the landing approach, located 3.1 miles from the airport reference point. The ground elevation at the tower is 25ft higher than the established airport elevation.

b) A planned 75-ft-high office building within the landing approach 1/2 mile from the end of the runway.

2) For the utility airport indicated above, what length of runway is required if the airport is located at 6000 ft above sea level and has a mean daily maximum temperature of 75°F? The effective gradient is 1.2 percent. The airport must accommodate small airplanes having more than 10 seats.

Transportation: Which is more significant in reducing free flow speed on a freeway, narrower lanes or a narrower right side shoulder? Does this make sense to you? Why?

Vertical Curves: Given g₁ = -3%, g₂ = 2%, L = 500', VPI Station of 100+00 Calculate the PT Stationing.

Define calibration and verification. Describe the general process of calibrating a model. List three useful hydrologic calibration parameters. Describe the general process of verification.

List at least three of the most popular event, continuous, or urban runoff models for hydrologic simulation. Give a brief description which includes the model type (event, continuous, physical, analytical, etc) and what it normally is used to model.