Topic: Construction - Soil

1.) Create a 1-2 pages minimum technical report about the "Index Properties of Soils". Your report should include types and condition of soil, and provide their structural properties, compressibility, shear strength and compactness (relative density) characteristics.  

2.) Provide technical references from at least one source to support your points.

Explain with appropriate examples , how selection of construction machineries and equipment effect the construction project planning ?

(write by Microsoft Word )

Which of the following are the shortcomings of a code of ethics formulated by “professional engineering society”? (1) These codes are not formulated with sincere scholarship or expertise and are often a hostage to economic interests. (2) Most practicing engineers do not belong to any professional engineering society, so the codes cannot properly reach out to them. (3) Such codes, at best represent the highest ethical common denominator among those to who it applies, therefore, it may include provisions which may be ethically questionable (4) These codes are not exhaustive – and there are matters of ethical importance that may go unnoticed

(a) 1 and 2

(b) 1, 2, 3 and 4

(c) 2, 3 and 4

(d) 2 and 3

Using Mohr's circle explain why for lateral earth pressure in sand against a retaining wall, the active thrust behind the retaining wall is always less than the passive thrust?

Both isotropically consolidated undrained (CIU) triaxial test and an isotropically consolidated drained (CID) triaxial test are conducted on a loose sand. Without calculation which test will have a higher deviator stress at failure?

choose one type of space truss structure for a 100m span hangar and a 30m span gas station, respectively, and explain the reason briefly

Differentiate between Unified Soil Classification System (USCS) and MIT Soil Classification Systems. Differentiate between Unified Soil Classification System (USCS) and MIT Soil Classification Systems.

PURPOSE:

The purpose of this assignment is to enable the students to enhance their knowledge on the environmental engineering and sustainable development for environmental engineering.

TASK 1 (DOCUMENTATION)

Development in science and technology has increase the level of human lifestyle which leads to technology advancement. However, everything good comes with a price. One of the greatest problems that the world is facing today is that of environmental pollution, increasing with every passing year and causing grave and irreparable damage to the earth as a results of the chemical by-products produced from a human activities. Nowadays, more than 700 emerging pollutants, their metabolites and transformation products, are listed as present in the European aquatic environment alone (www.norman-network.net). The presence of emerging contaminants, including pharmaceuticals and personal care products (PPCPs), pesticides, and endocrine-disrupting chemicals (EDCs), in water bodies is a serious problem in many countries. However, the environmental fate of emerging contaminants and their behavior is largely unknown. They are presently not monitored in the environment but have a high potential of causing environmental damage and suspected detrimental effects on ecosystems and human health (Geissen et al., 2015).

The goverment of Malaysia is requesting the environmental consultant company you are currenly working to do a study on the impact of emerging pollutants to water suppy system in Malaysia. This study must include the current management apply to manage this pollutant. As a team leader you are required to prepare a documentation consist of:

1. Introduction: Described what is the Emerging pollutants
2. Discuss the significant impacts of Emerging pollutants to our water supply system
3. Discuss the current action taken by authorities to reduce, remove and manage this emerging pollutants according to current law and regulations.
4. As an engineer responsible, suggest potentially sustainable methods for the treatment and management of emerging pollutants. Write a reason why you chose the methods.
5. Conclusion

requirement:

1. Number of words: 3500 - 5000 Words excluding references.

[TOTAL: 100 marks]

1. Explain how changes are handled in Qatar construction projects. How is BOQ (Bill of Quantities) related to change order payment?

2. Explain if owner has direct relationship with the subcontractors. What happens if owner interferes into the work of the subcontractors.

6. What are 5 different types of cement? Name all the ingredients used in concrete with their proportion.

Based on the practice of EWIS wiring installation practice, describe the technical procedures to satisfy FAA’s requirements.

1) reasons why unsaturated soil mechanics is needed in the analysis of seepage and shear strength of unsaturated soil, and 2) how to evaluate the seepage and shear strength of unsaturated soil

A curve needs a widening of 4 feet to the inside due to off-tracking. Calculate the taper length for 35mph. Calculate the taper length for 55mph.

Widely recognised as one of the best airports in the world, Changi Airport provides excellent connectivity to the Asia Pacific region, making Singapore a vibrant aviation hub of choice. Changi Airport is served by many leading airlines and is an important hub for airline alliances such as Star Alliance and Oneworld, providing an important connection from ASEAN cities to ones in Europe and the United States.

There are currently 4 terminals in operations at Changi Airport and with the addition of the fifth terminal that is scheduled to be operational in 2030, Changi Airport will be able to cater to more than 135 million passengers per year.

As an intern at the airport, you have been provided with a set of aircraft traffic data (from January 1991 to December 2019) that shows the number of aircraft arrival and departure for each month and are required to analyse and do a projection of the aircraft traffic up to December 2021. This information will help the authority to decide if the pace of constructing Terminal 5 needs to be accelerated for completion ahead of 2030.

(a) Discuss which time period of the record should be used for this forecasting. Recommend an appropriate time series model to forecast the monthly aircraft traffic up to December 2021 with justifications.

(b) From Question 3(a)’s conclusion, determine the monthly forecast for aircraft traffic up to December 2021. Show the steps in calculating the forecast.

Long question

Discuss the design mixture and construction techniques of bituminous stabilization.