1. The figure below shows a square foundation which applies a load of 63 kN/m2 at the ground surface. The soil profile consists of 3 clay layers where the coefficient of volume compressibility for the clay falls linearly from 0.05 m2/MN at the ground surface to 0.025 m2/MN at the bottom of layer 3. The stress change distribution with depth due to the foundation load is shown in the table.
|
Depth (m) |
Stress change (kN/m2) |
|
0 |
63 |
|
4* |
46.94 |
|
8 |
30.87 |
|
12* |
21.11 |
|
16 |
11.34 |
|
20* |
8.35 |
|
24 |
5.48 |
a) Calculate the total consolidation settlement at the centre of the foundation above?
b) A similar foundation was constructed on a different site where 7m of sand overlies 7m of clay over a bed of impervious rock. The coefficient of consolidation for the clay is 0.7 m2/year and the coefficient of volume compressibility 0.05 m2/MN. In Oedometer tests on a 19 mm thick sample of clay from the site, 90% consolidation was reached at 76 minutes. How long would it take the clay to reach the same degree of consolidation on site?
c) Calculate the permeability of the clay in part (b).
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Describe the two methods of pricing equipment transportation expenses.
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Topic: Construction - Footings
(Note: Briefly discuss in your own words and 1 paragraph minimum.)
Please provide your ideas and information regarding classification of footings.
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1. identify the six fundamental pedestrian conditions that
should be prioritized in transit station area planning
2. What is a bus bay?
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Statistical processing of static test results. Notion of dispersion and the correlation analysis.
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Explain the rationale for the OSHA Act?
Summarize OSHA's mission and purpose?
Summarize what is covered in the OSH Act?
Explain how OSHA enforces compliance?
Explain OSHA's enhanced enforcement policy?
Describe the cost of OSHA fines: direct and indirect?
Summarize the various services available from OSHA?
Summarize employer rights and responsibilities under the OSHA
act?
Summarize employee right and responsibilities under the OSHA
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Explain the laws and liabilities relating to workplace safety and
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1. Compare the volume occupied by 1000 lb of refuse before (loose) and after baling by calculating the compaction ratio.
a. List waste densities (loose and baled) and provide a reference.
b. Calculate the compaction ratio.
Refuse composition (percent by weight)
| Newspaper | 21% |
| Office paper | 15% |
| Cardboard | 8% |
| Glass | 12% |
| HDPE | 3% |
| PETE | 3% |
| Steel cans | 5% |
| Yard waste | 18% |
| Aluminum cans | 4% |
| Misc. | 11% |
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how is sludge treated differently in water treatment vs wastewater treatment?
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A department in the facility required 12,250 units of raw materials to produce a TV. The company is deciding wither to buy or make raw materials. The fixed and variable cost of building (manufacturing) the raw materials are $20,000 and $5, respectively. Also, the fixed and variable costs for buying the raw materials are $400 and $7, respectively. Use the breakeven analysis methods to decide if the company has to purchase or manufacture the raw materials.
|
Non of the above |
||
|
The company must purchase the raw materials |
||
|
The company must make the raw materials |
||
|
It will cost the company the same to make or buy the raw materials |
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