a)Explain and Identify the earthwork activities carried out when performing, deep excavation and cuttings. The works must be identify the location for public utility given by public utility provider. You must illustrate and explain the different type of plants used during excavation, supporting system and falsework required to provide in safe working environment in various sub-soils condition.
b)Describe different type of methods for controlling groundwater. You must describe a range of methods of groundwater control during the deep excavation, for example sump pumping, dewatering and land drainage.
In: Civil Engineering
Q.1. Design a simply supported slab for a room of size Lx (m) X Ly (m) one end continuous to support a live load of 300 psf. Take a concrete of strength 4000 psi and steel of strength 60000 psi. Show the cross section of slab with reinforcement details.
NOTES : data given below in the table
|
Lx (m) |
Ly (m) |
|
5.5 |
12 |
In: Civil Engineering
Q.1. Design a simply supported slab for a room of size Lx (m) X Ly (m) one end continuous to support a live load of 300 psf. Take a concrete of strength 4000 psi and steel of strength 60000 psi. Show the cross section of slab with reinforcement details.
|
Lx (m) |
Ly (m) |
|
4.25 |
8.5 |
In: Civil Engineering
Q.1. Design a simply supported slab for a room of size Lx (m) X Ly (m) one end continuous to support a live load of 300 psf. Take a concrete of strength 4000 psi and steel of strength 60000 psi. Show the cross section of slab with reinforcement details.
NOTES : Student will take data given below in the table against their name.
|
Lx (m) |
Ly (m) |
|
3.5 |
7.5 |
In: Civil Engineering
describe design standards for major parts of
highway
In: Civil Engineering
What are some environmental issues in landfills regarding leachate and gas generation, i.e. the difference between an open pit and a ‘sanitary’ landfill and what processes occur in the decomposition of garbage?
In: Civil Engineering
Mr. Phiri has been awarded a contract of supplying
coarse aggregates to Junxi Engineering company who
are working on Lusaka-Ndola dual carriage way. One of the condition
for Mr. Phiri to supply the coarse
aggregates is having his own quarry site and to employ a material’s
Engineer for quality control purpose
and technical advice. The material’s Engineer will give guidance on
site selection for coarse aggregates
which will be presented to the main contractor Junxi Engineering
Company. You have been engage by Mr.
Phiri as a Material’s Engineer and the first task is to give him a
report on the site selection for the quarry
site.
a. Write a technical report to Mr. Phiri on the site selection of
the aggregates.
b. What is aggregate gradation, how is it carried out and its
importance in concrete production for Civil
Engineering projects?
c. Propose material to use for access roads for the entrance and
give reason for selecting that material
d. What are air-entraining agent and what properties of concrete
will be affected if air-entraining agent
is added?
In: Civil Engineering
The Zambian Government has embarked on various
developmental projects throughout the country. The
projects include Water and Sanitation, Roads, Schools and
Hospitals. Private companies have also invested
in shopping malls in various parts of the country. This has
resulted in a boost for the construction industry.
a. Discuss why there is an increase in the use of steel as compared
to concrete in most of the building
works around the country under construction.
b. Consider the iron value chain from material extraction to
disposal, at what point according to your
assessment is the most energy used? As a design engineer, at what
stage do you think is your
intervention most important and what role can you play in making
iron more sustainable?
c. One of the project which the Government is implementing is the
water project in Western Province
of Zambia particularly Mongu District. Two surface concrete
reservoirs of 1.5 Mega litres each will
be constructed within the Central Business District (CBD). Since
the site is within the CBD, the wall
fence should be built and source of sand for block moulding will
come from the same site as the area
is sandy and it is quite large. As a material/site Engineer advice
on the type of material, construction
and precaution which should be considered for this project.
d. Some works which have already been completed for the water
project especially buildings
constructed of concrete roofing have started leaking after 1 year.
What could be the possible causes
of leaking roofs and how can this be sorted out.
In: Civil Engineering
Design of circular slab with simply supported condition.
Effective span = 5.4 m c/c
Floor finish = 1.5 kN/m2
Imposed load = 3 kN/m2
Characteristic strength of concrete (fck) = 35N/mm2
Characteristic strength of steel (fyk) = 500 N/mm2
Assume cover
In: Civil Engineering
Environmental issues have become critical concerns of businesses in recent years. Therefore, Environment Ministries in different countries is urging organizations to consider adopting the ISO 14000 Environmental Management Standards. Evaluate FOUR (4) challenges among the Malaysian companies to receive ISO14000 so explaining in detail ?
In: Civil Engineering
|
A rectangular footing 2.0 m by 3.0 m is built in a homogeneous bed of sand of having bulk unit weight 20 kN/m3 and saturated unit weight 21 kN/m3 with an angle of shearing resistance of (30+Y)o. The depth of the base of footing is 1.8 m below the ground surface and water table is located at a depth of 1.0m below the base of the foundation. Consider the factor of safety of 3. Use Terzaghi’s Analysis |
|
y=2 |
In: Civil Engineering
2. There are two primary methods of building up a solution to an engineering model, 1) analytical, and 2) numerical. Provide a description of each of these methods, explaining in detail what they are being employed for, when they would be employed, and why a given method would be employed rather than the other. answer should be relavent to engineering system unit please.
In: Civil Engineering
A 1000 litre containment tank catches the outflow from a processing apparatus which has 800 litres of water with 2 g of chemical agent dissolved in it. Additional supply comes into the tank at 3 litres/hr containing 5 g/litre of the chemical agent. The solution leaves the containment tank at 3 litres/hr. When the amount of chemical agent in the containment tank reaches 500 g, no more supply is allowed to enter the system. Instead, fresh water is input into the tank at 2 litres/hr; and at the same time, the outflow is increased to 4 litres/hr. How much chemical agent is held in the containment tank at any time t. Assume all liquids are well-mixed. (10 marks.) Please provide the explanation of the method and as much as step uh can with proper calculation.
In: Civil Engineering
1. Provide a detailed explanation of the process that should be taken when testing an engineering model. In your explanation describe what you are doing at each step and why you are doing it. please provide answer related to engienerring system unit
In: Civil Engineering
can you give me a conceptual framework on the research topic "Impact Of Variation Order in Construction Project?"
In: Civil Engineering