Questions
A shovel with a 3-cy heaped capacity bucket is loading well blasted rock on a highway...

A shovel with a 3-cy heaped capacity bucket is loading well blasted rock on a highway project. The
average face height is 22 ft. The shovel has a maximum rated digging height of 30 ft. Most of the cut will
require a 140-degree swing of the shovel to load the haul units. Use efficiency factor 45-minues per hour.
What is an aggressive production estimate in bank cubic yards? Show all the calculations

In: Civil Engineering

A project involves excavation of a 30m by 30m raft foundation to a depth of 2m,...

A project involves excavation of a 30m by 30m raft foundation to a depth of 2m, with the earth to be transported up to 30m from the edge within 15 days.

Estimate the total cost for excavation considering Manual operation and the following;
Man hours/unit: 2 hours/unit

Assume 8 hour/day of work

Cost of labor/day: $150

2. Estimate the total cost for excavation considering Mechanical Operations with one excavators and 2 tippers and the following;

2 operators per excavator and 2 operators per truck

Productivity of equipment: 30 m3/hour

Assume 8 hour/day of work

Cost of excavator/day: $3000

Cost of tipper/day: $1500

Cost of labor/day: $150

In: Civil Engineering

1.)The perpendicular distance from the tangent at PC to a point Q on a simple curve...

1.)The perpendicular distance from the tangent at PC to a point Q on a simple curve is 64m, If the distance from PC to Q is 260m, determine the station of Q when PC is at STA 12+598.

2.) Two parallel roads 25m apart are to be connected by a reversed curve with equal radii at PC and PT. The length of the common radius is 1250m.apart are to be connected by a reversed curve with equal radii at PC and PT. The length of the common radius is 1250m.Determine the length of the chord from PC to PT.

In: Civil Engineering

In your own words, describe the offsite and onsite process involved in the construction of a...

In your own words, describe the offsite and onsite process involved in the construction of a steel-frame building.

In: Civil Engineering

Write a page analysis. Explain the economic and political impact of the Montgomery Bus Boycott. How...

Write a page analysis. Explain the economic and political impact of the Montgomery Bus Boycott. How did that event change the tactics of the civil rights movement?

In: Civil Engineering

Discuss the major environmental concerns with landfills and describe the measures taken to mitigate these potential...

Discuss the major environmental concerns with landfills and describe the measures taken to mitigate these potential concerns

In: Civil Engineering

In California treated wastewater is normally disinfected before being discharged to natural water bodies. Briefly state...

In California treated wastewater is normally disinfected before being discharged to natural water bodies. Briefly state the health arguments for and against this practice.

In: Civil Engineering

Describe the procedure of obtaining Shear force diagram and Bending Moment diagram of simply supported beam....

Describe the procedure of obtaining Shear force diagram and Bending Moment diagram of simply supported beam. Take an example of beam with load of your choice. Also illustrate the significance of these diagrams for design of a beam in practical life.

In: Civil Engineering

List the four steel application-based classes and briefly explain each. Sketch the commonly used hot-rolled sections...

  1. List the four steel application-based classes and briefly explain each.
  2. Sketch the commonly used hot-rolled sections used in building construction.
  3. Each W-shape is designated by two numbers. What means W 14 x 38?
  4. Discuss two basic approaches used for fire protection of steel
  5. In a typical structural steel floor or roof framing, there are three types of elements, called primary, secondary, and tertiary elements. Explain what these are and what material(s) they consist of.
  6. Explain the pros and cons of welding versus bolting in steel structures.

In: Civil Engineering

What is the formula for maximum deflection and maximum bending moment of a simply support and...

What is the formula for maximum deflection and maximum bending moment of a simply support and cantilever beam that carry a uniformly varying load?

In: Civil Engineering

what are the following field procedures: Intersection & Resection? Identify the different types of each. Provide...

what are the following field procedures: Intersection & Resection? Identify the different types of each. Provide a simple sketch of each  

In: Civil Engineering

The world has been hit hard by the latest COVID-19 pandemic, and health services and authorities...

The world has been hit hard by the latest COVID-19 pandemic, and health services and authorities in every country are struggling to reduce spread, fight disease and protect the population. Strict restrictions on movement, social distance and locking in certain cities have been imposed on people and businesses since the outbreak in Wuhan, China in December 2019. However, these widespread lockdowns, social distances and restrictions have led to major changes in human activity and have therefore produced some jarring effects across land, air and sea. Based on your knowledge, you can concisely describe the effects of the COVID-19 pandemic on our environment and discuss the effects on human activity, the current status of pollution and ways to mitigate pollution. The explanation should reflect to the THREE type of pollutions below:

  1. Nose pollution
  2. Soil pollution
  3. Air pollution

In: Civil Engineering

Question 4 Travel time of a 4ha catchment of a residential land use (C10 = 0.32)...

Question 4

Travel time of a 4ha catchment of a residential land use (C10 = 0.32) in Adelaide is 20 minutes. If the catchment area is equally divided into four parts by the 5-minute isochrones, compute 100yr design flood peak at the catchment outlet. What is the runoff volume generated from this storm event? Compute equivalent ΓΈ index of 100-year design storm event for this catchment.

In: Civil Engineering

1. How do different long term climatic conditions (including air temperature, humidity, solar radiation, precipitation) affect...

1. How do different long term climatic conditions (including air temperature, humidity,
solar radiation, precipitation) affect the performance of concrete, steel and timber?
2. Discuss the formation of different types of cracking in concrete. What will be the potential problems if these cracks are not repaired? Discuss the methods to prevent and fix the cracks.
3. There are two parts below:
a. What is difference between Minor Destructive Test (MDT) and Non Destructive Test (NDT) of concrete? In which situation, NDT will be preferred for assessing the concrete?
b. In order to assess the conditions of slabs and columns of this 30 years old reinforced concrete structure, give your suggestions for (i) assessment methods (ii) testing parameters

In: Civil Engineering

Discuss sub-surface investigation in rocks and structural geology of rocks.

Discuss sub-surface investigation in rocks and structural geology of rocks.

In: Civil Engineering