1. (2 pts) What things do we need to be measured during the consolidation test? 2. (2 pts) What is the difference between primary consolidation and secondary consolidation? 3. (4 pts) Using a semi‐log plot of time versus dial readings describe the procedure that are used to determine the coefficient of consolidation cv? 4. (2 pts) Does the laboratory sample in the consolidation test deform laterally? 5. (2 pts) How many drainage paths are there in a consolidation test? 6. (4 pts) Describe how an oedometer can be used to determine the volumetric changes in a soil sample due to wetting over a range of vertical pressures? 7. (2 pts) What assumption do we make to permit us to compute settlement (vertical changes in ground surface) using the volumetric changes in a soil tested in the consolidation test?

urgent

Design a constructed wetland that can effectively treat a domestic wastewater containing high content of BOD and ammonia N.

After drilling generally casing is done. Assume in one well the casing failure has taken place due which the operator has faced a problem in the well. Based on understanding how the selection of different types of casing is done (4marks). Support your answer with a neat diagram (1mark).

Suggest possible ways to significantly reduce the size of a common secondary sewage treatment plant (e.g. Shatin Sewage Treatment Plant) without lowering the treatment performance.

You are overseeing the plans for construction of a new highway. Someone proposes using cheaper,
substandard materials to control/treat water flowing off the construction site. The water on the
construction site contains measureable concentrations of sediments, oils from vehicles, heavy metals, and
components of asphalt. A recreational lake is nearby and downgradient from the construction site. This is
a substantial slope (10% grade) across the site.
a) (5 points) LIST the three pillars of sustainability and EXPLAIN how this issue connects to each
pillar.
b) (5 points) Assuming you are a licensed engineer, what is your ethical obligation to the public
AND other licensed engineers working on this job? [Your response should cover ethical
obligations to both parties.]
c) (5 points) LIST and DESCRIBE at least two ways to control fluvial (water) erosion on this site.

Results obtained from a tension test on a bar of uniform cross section 10 mm x 10 mm subjected to an axial pull of 8000 N were tabulated. The lateral dimensions of the bar were found to be changed to 9.9985 mm x 9.9985 mm while using a material having modulus of rigidity equal to 0.8 x 107 N/cm2. By determining the values for different moduli, identify the properties of material and establish the relationship between them. What changes will happen to the volume if the length of the bar is equal to 2.5 m? Based on the results obtained discuss how the elastic constants are related to the deformation of the bar?   

Scenario Question.

Omani company for investment ( OCI ), is one of the biggest business company in Oman, it has diverse varieties of investment, one of these businesses is an old tower building, 20 floors located in Seeb area used as offices by multiple companies.

OCI decided to change the purpose of the building to a residential building, so it started to plan to demolish the building through one of its construction company.

The location description of the building is located in a very crowded area, the main gate of the building opening to the main road in the North direction, East and West directions of the building attached to two buildings, the South direction of the building is next to a wadi. after the company communicated its plan to all governmental authorities, the municipality requested that the work should be finish in a very short time due to the nature of the area.

Task's questions:

1/ Identify which suitable technique of demolition that the company has to follow and why?

2/ Mention all the important precautions that should be taken by the demolition contractor.

3/ Discuss the method statement of the demolition operation.  

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Explain the concept of high-performance green building. Include the following:

• Your reasoning to justify the appropriateness of sustainable construction practices (a minimum of three reasons)
• A minimum of three trends in high-performance building
• A trend you foresee in high-performance building in the near and distant future

• What are the differences between AASHTO 1993 and Al method? what are the similarities?

THIS IS AN ENGINEERING SUSTAINABILITY SUBJECT BUT I CHOOSE CIVIL ENGINEERING

You are required to come up with a significant engineering solution to address a sustainability challenge in Western Australia. Some key sustainability issues in Western Australia that are challenging for engineers to address include but are not limited to: Carbon emissions (reduce GHG emissions)

Question

1. Provide a summary of any one of the following improvement strategies to help solve the TBL problems associated with your sustainability challenge: Use Energy storage.

Climate change causes profound impacts on the environment due to the increased global temperature. Discuss briefly why and how climate change can potentially cause more flooding and excessive rainfall in some areas, and severe droughts in others.