Questions
factors that influence consolidation characteristics of soil

factors that influence consolidation characteristics of soil

In: Civil Engineering

Given: - Level terrain - extended freeway segment - Urban area with 0.9 interchanges/km - DDHV...

Given:

- Level terrain - extended freeway segment

- Urban area with 0.9 interchanges/km

- DDHV 4050 vehicles/hour

- 10% trucks, no buses, no RVs

- PHF 0.95

- Full shoulder and 3.6m wide lanes

Determine:

- Number of lanes to operate at LOS=C

In: Civil Engineering

The extract below is taken from a Level Book for levels taken between 2 TBMs. Complete...

The extract below is taken from a Level Book for levels taken between 2 TBMs. Complete the Level Book entries as well as calculate the adjusted RL (reduced levels) for all entries. The misclose error can be assumed acceptable. Note: all staff readings are in meters.

BS IS FS Rise Fall RL Correction Corrected RL Notes
1.379 TBM RL 175.5
2.795 PEG 1
3.215 PEG 2
0.595 PEG 3
1.270 PEG 4
1.280 3.215 CP B
1.030 PEG 5
3.045 PEG 6
2.312 3.815 CP C
1.743 3.227 CP D
2.735 PEG 7
3.623 TBM RL 168.50

In: Civil Engineering

transpo: Please show step by step and the diagram too. An approach to a signalized intersection...

transpo: Please show step by step and the diagram too. An approach to a signalized intersection has a saturation flow rate of 1800 veh/h. At the beginning of an effective red, there are 6 vehicles in queue and vehicles arrive at 900 veh/h. The signal has a 60-second cycle with 25 seconds of effective red. What is the total vehicle delay after one cycle? What is the maximum length of queuing within this cycle? (assumeD/D/1 queuing)

In: Civil Engineering

The principles of risk management are routinely applied in society (e.g. benefits of a drug vs....

The principles of risk management are routinely applied in society (e.g. benefits of a drug vs. potential harmful adverse reactions in some patients). Risk management principles enable decision-makers to determine a balance between risk and cost to reduce that risk. The "safer" we engineer something, the more it costs. Using risk management, a "cutoff" point is decided upon, where further expenditures to further reduce risk are not "cost effective." Advances in instrumentation are allowing us to "discover" pollutants in treated wastewater that we couldn't detect previously due to their minute concentrations. The pollutants are introduced by human activity and many advocates they should, therefore, be removed, regardless of cost. The cost of removing minute traces of any pollutant is very high due to the low concentrations. The counter-argument is that the pollutants, previously un-measurable, have been in treated wastewater for generations and haven't caused harm.

Questions:

1. How should this be approached?

2. Does risk management have a role?

In: Civil Engineering

How to make your community's transportation needs safe and sustainable? Please provide examples to support idea...

How to make your community's transportation needs safe and sustainable? Please provide examples to support idea of how to provide safe and sustainable transportation to improve the community's livability.

Please explain and with the examples for about one page long. Thank you

In: Civil Engineering

A 36" RCP (n=0.015) conveys 9.7 ft^3/s at a slope of 1.5%. a. Calculate the depth...

A 36" RCP (n=0.015) conveys 9.7 ft^3/s at a slope of 1.5%.
a. Calculate the depth of flow in the pipeline
b- Calculate the velocity of flow in the pipeline

In: Civil Engineering

A Design-Bid-Build project delivery approach overlaps the design and construction phases, whereas the Design-Build approach requires...

  1. A Design-Bid-Build project delivery approach overlaps the design and construction phases, whereas the Design-Build approach requires each phase to be completed before moving on to the next one.
  1. True
  2. False
  1. Identify ALL that apply: Under the Design-Bid-Build delivery method, there are legal contacts between which of the following.
  1. Owner-Engineer
  2. Owner-Contractor
  3. Engineer-Contractor
  1. Identify ALL that apply: The CM at Risk is responsible for:
  1. Means and Methods
  2. Quality Assurance
  3. Payment to Subcontractors
  4. Safety

  1. A General Contractor must be the employer of the electrical and mechanical trades to be considered a General Contractor.
  1. True
  2. False

In: Civil Engineering

The Owner’s ability to influence design and cost is highest at the construction phase. True False...

  1. The Owner’s ability to influence design and cost is highest at the construction phase.
  1. True
  2. False
  1. The conceptual estimate is useful in the schematic design phase when design details are not available.
  1. True
  2. False

  1. A Cost-Plus contract is considered a reimbursable type of contract.
  1. True
  2. False
  1. An advantage of a Lump Sum Contract is that the owner assumes the risk of construction cost.
  1. True
  2. False

In: Civil Engineering

Identify five advantages or disadvantages of reinforced concrete construction in comparison to structural steel construction. Provide...

Identify five advantages or disadvantages of reinforced concrete construction in comparison
to structural steel construction. Provide references as necessary. The five should be distinct.

In: Civil Engineering

data:highrate trickling filter pipe dia = 30m deep = 1m swage flow = 4.5mld recirulation ratio...

data:highrate trickling filter

pipe dia = 30m

deep = 1m

swage flow = 4.5mld

recirulation ratio = 1.4

bod of raw sewage = 250mg/l

bod removed in primary clarifier = 25%

efficiency?

(ans:74%)

In: Civil Engineering

3. Corrosion of reinforcement is function of external factors (environmental) and internal factors related to materials....

3. Corrosion of reinforcement is function of external factors (environmental) and internal factors related to materials. What are these factors?

4. Polymer concrete may be used for new construction or repairing of old concrete. What is the main advantage over ordinary concrete.

5. Explain the main difference between asphalt pavement and concrete pavement

6.   a- What are the most common used bituminous materials for

                  pavement ?:

  1. what are the types of petroleum asphalts are used in pavement construction.
  2. Why asphalt fail and crack?

In: Civil Engineering

            Circle the correct answer of the following (True/False) Darcy’s velocity is a synonym to apparent...

  1.             Circle the correct answer of the following (True/False)
    1. Darcy’s velocity is a synonym to apparent velocity (T/F)
    2. The hydraulic conductivity of a porous media is a function of both porous media and fluid properties (T/F)
    3. Intrinsic permeability is related to the second power of the pore radius (T/F)
    4. Dynamic viscosity of a fluid is a synonym to kinematic viscosity (T/F)
    5. Dynamic viscosity of a fluid is a synonym to absolute viscosity (T/F)
    6. Average linear pore velocity is large than Darcy's velocity (T/F)
    7. Seepage velocity = pore water velocity = average linear velocity (T/F)
    8. Isolated water as dead-end pores or trapped gas don’t count when using effective porosity (T/F)
    9. Effective porosity is not available for flow (T/F)
    10. Productive aquifers should have high porosity and high transmissivity (T/F)
    11. Groundwater flows faster that surface water (T/F)
    12. Water table is the locus of points where water pressure is zero relative pressure (T/F)
    13. Aquiclude is a synonym to confining layer (T/F)
    14. Perched water table is a water table that forms below a restrictive layer near the soil surface (T/F)
    15. In confined aquifer, hydraulic gradient equals to the slope of the piezometric surface (T/F)
    16. In unconfined aquifer, hydraulic gradient is the water deriving force and equals to slope of water table surface (T/F)
    17. oceans lose more water by evaporation than they gain by precipitation (T/F)
    18. Land surfaces receive more water as precipitation than they lose by evapotranspiration (T/F)
    19. Residence time of lakes is lower than that in rivers (T/F)
    20. Residence time is the time required to replace a given ocean constituent by river supply (T/F)
    21. Residence time tells how quickly or slowly a river constituent can respond to a change in the constituent supply or removal rates (T/F)

In: Civil Engineering

Chapter 12 Questions (pg. 100) 12.1 What are of the reasons that a contractor would be...

Chapter 12 Questions (pg. 100)

12.1 What are of the reasons that a contractor would be disqualified from a bid for not being a responsible bidder

12.4 What is promissory estoppel How does it affect construction contracting practices

12.5 When and how does the us uniform commercial code apply to construction

12.12 Explain the difference between unit price and lump sum contracts.

Chapter 13 Questions (pg. 116)

13.4 Which of the standard contracts would be used most frequently during construction projects and why

13.6 Why are state and federal government agencies required to competitively bid all construction contracts

13.7 What are the mail components of construction contracts

Chapter 14 Question (pgs. 129)

14.3 Explain why construction needs to nominal, compensatory, and precatory damages.

14.12 How are owners allowed to make changes during construction What clause provides then with this ability

14.20 What are the ways in which a contract between during construction

In: Civil Engineering

Please provide an example of a Project Scope of a house construction

Please provide an example of a Project Scope of a house construction

In: Civil Engineering