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Const. Industry 3
Construction Processes.
Question | Answer |
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6 things that an Engineer should check when he inspects an Excavation. | SSSSDIMFF. = stable. supported safe access and exit stop logs. dewatered if necessary Inspected daily before each shift May be a confined space (gas detection needed). fenced off properly (falls from height) formation need protection from weather |
Traditional Procurement, who is the contract between. | the contract is between the Employer and the designer and then the employer has a seperate contract with the contractor. |
3 main insitu site investigations methods and which is used in rock | Trial Pits shell and Auger Rotary Borehole Rotary Borehole is used in rock or very hard materials. |
Disadvantages of using Sheet Piles. | the driving is a noisy process. Sheet piles are more expensive than H piles. cost of Driving is high for the area covered. |
Difference between Secant Piling and Contiguous Piling | Secant Piling have interlocking piles. Secant Piling retains water much better. |
Normal methods for excavating rocks. | Powerful breaker mounted on excavator powerful excavator with rock bucket. |
T o ensure safety of a construction worker, these two things must be carried out | Work should be regulated Risk Assessment must be carried out by designers and contractors. |
To ensure safety of a construction worker, name 2 works that must be carried out. | Work should be regulated. Risk assessment must be carried out by designers and contractors. |
Explain why loads have different factors of safety | Because they allow for uncertainty in the design process. or Because they provide a design margin over the theoretical design capacity. |
list 6 items to check when pouring a re- inforced concrete foundations. | Lap lengths Sufficient Chairs. Spacer Blocks Tilings Kickers Starters. |
Identify the main problems in the use of driven piles and list a solution | How long to make them. (i.e. knowing what length to make them is a design issue) Solution would be to use segmental piles 2 to 5 metres in length. |
Who designs where to put each of theses joints. | Expansion Joints - Designer Contraction Joints - Designer Construction Joints - Contractor. |
6 items the temporary works designer should consider when designing form-work for a wall pour | Mix Design. Types of release agents. limitations on size of form-work type and position of Construction Joints. Deflection Limits for the formwork Type of finish required for all formed surfaces. Method of Sealing the form surfaces. |
Long term staining or spalling of concrete is caused by | Extreme weathering Conditions. |
Why would you take Piezometer readings for at least 6 months? | They are taken for 6 months to see if there are any changes in the groundwater levels, this is then used for designing de-watering methods of excavations. |
2 methods of temporary lowering the ground water table. | Sump Pumping Well Point System. |
3 Construction Techniques that bentonite is used for: | Excavating Slurry trenches. Diaphragm walls, Pressure grouting |
4 Hazards a concrete gang could face, when using a skip to pour concrete into a reinforced concrete foundation. | Spilling of concrete could create slippery surface Alkaline could come in contact with eyes or skin. Moving skip could hit workers. |
4 Factors (non structural factors) that you would investigate before designing a road bridge over the river avon | Environment, protected species archaeology & historic use Access routes to site Existing Services |
Species protected under uk environmental legeslation | Bats Badges Water-voles Reptieles Amphibians Nesting Brids Tree protection Hadgerows Noxious & Invasive Plants |
Stages Of The Investment Process | Identification of need Veriification of need Assessment of options Outline Design Detailed Design Tender & Award of construction Project Delivery OPtimisation |
Examples Of Regulation | Local Authority Environmental Regulation Health & Saftey Execitives Water & sewage Provider Heritage Bodies Nature conservation organisations |
4 Main things that are essential to make a valid contract in UK law | 1. Agreement - Offer and Acceptance 2. Consideration 3. Intention to create a legal Relationship 4. Legal capacity to make the contract |
What Is a Standard Froem of contract such as NEC3 Engineering | A Simple collection of Standard Terms Designed for particular type of design or construction |
Four Advantages of a Standard Form of Contract. | Parties know their risks. Parties understand obligations. It is available to everyone Employers and Employees have certainty. |
What is Notifiable Project under C.D.M 2007? | Notifiable projects are those which last longer than 30 days or involve more than 500 people in construction work. |
Describe the role of the C.D.M CO-ordinator. | To advise the client on Health and Safety issues during the Design and Planning phases of Construction work. |
Describe the role of the Principal Contractor. | To plan, manage and co-ordinate Health and Safety while construction work is being undertaken. |
Give 4 reasons why an understanding of the ground water level is important to the designer and constructor of a project containing a basement structure. | Ground water could make our structures float. Danger of drowning. It could cost money. Flood our excavations/trenches/pits. |
On a Drawing of a tank, you specify the diameter to be 12000 metres, is this a term of the Contract? | Yes it is because the designer will specify what he or she wants in detail. |
Explain the Contractual Purpose of the "Drawing" | Drawings are specifications for the contractor, so they visualize the finished project. |
You are the Contractor's Project Manager on a new tower block project. What safety provisions would you make for workers Constructing the third floor to prevent "falls from height" | Use Safety nets and warning hazard signs. Used fixed ladders. Install a passive device such as Scaffolding. |