Construction Engineering & Management - Vol 2 | 9. Earth Moving Equipment-Scrapers (Part-2) by Abraham | Learn Smarter
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Knowledge
9. Earth Moving Equipment-Scrapers (Part-2)

The lecture discusses the operational aspects of scrapers in civil engineering, focusing on productivity estimation and balancing the number of scrapers and pushers. It explains key concepts such as swell factor, machine weight, and resistance encountered during operations. The necessity of optimizing operations to improve productivity and reduce production costs is emphasized.

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Sections

  • 1

    Earth Moving Equipment-Scrapers (Part-2)

    This section elaborates on the productivity estimation of scrapers, cycle time calculations, and the interplay between scrapers and pushers in construction operations.

    Learning Practice

  • 2

    Introduction

    This section introduces and explores the fundamental concepts and operations involved in earth-moving equipment, specifically scrapers and pushers.

    Learning Practice

  • 2.1

    Overview Of Previous Lecture

    This section reviews the previous lecture on the productivity estimation and components of scrapers in earth moving equipment.

    Learning Practice

  • 3

    Productivity Estimation Of The Scraper

    This section focuses on the estimation of productivity for scrapers, including calculations involving material properties, machine capacities, and operational efficiencies.

    Learning Practice

  • 3.1

    Problem On Productivity Estimation

    This section focuses on productivity estimation for scrapers in construction, detailing cycle times, resistance on haul routes, and optimizing the number of scrapers and pushers.

    Learning Practice

  • 3.2

    Material Characteristics

    This section explores the characteristics of earth-moving equipment, focusing on scrapers and their productivity estimation.

    Learning Practice

  • 3.3

    Swell Factor Considerations

    This section discusses the significance of the swell factor in estimating the productivity of scrapers, focusing on how pushing and material compaction affects calculations.

    Learning Practice

  • 3.4

    Loading And Operating Conditions

    This section discusses the productivity estimation, operational safety, swell factors, and balancing of scrapers and pushers in earthmoving operations.

    Learning Practice

  • 4

    Haul Route And Resistance

    This section examines the haul route characteristics and the resistance encountered by scrapers and pushers in construction operations.

    Learning Practice

  • 4.1

    Description Of Haul Route

    This section discusses the various factors that affect the description and analysis of haul routes for scrapers in construction.

    Learning Practice

  • 4.2

    Rolling Resistance Analysis

    This section focuses on rolling resistance in earthmoving equipment, particularly scrapers, and its implications on productivity and operational efficiency.

    Learning Practice

  • 4.2.1

    Section-Wise Resistance Analysis

    This section focuses on analyzing the productivity estimation and resistance analysis of scrapers in earth-moving operations.

    Learning Practice

  • 5

    Cycle Time Calculations

    This section covers cycle time calculations related to scrapers in earth moving operations, including productivity estimation and balancing machinery.

    Learning Practice

  • 5.1

    Travel Time Calculation

    This section focuses on calculating travel time within earthmoving operations, specifically using scrapers and pushers, emphasizing productivity and cycle time considerations.

    Learning Practice

  • 5.2

    Cycle Time For Scraper And Pusher

    This section outlines the cycle time for scrapers and pushers, focusing on productivity estimation and the balance of interdependent machines.

    Learning Practice

  • 6

    Balancing Scraper And Pusher Operations

    This section explains the significance of balancing scraper and pusher operations to optimize productivity in earth-moving operations.

    Learning Practice

  • 6.1

    Balancing Number Of Scrapers

    This section discusses the interdependence between scrapers and pushers in construction, focusing on productivity estimation and balancing their numbers to optimize machine efficiency.

    Learning Practice

References

12 a.pdf

Class Notes

Memorization

What we have learnt

  • The swell factor increases ...
  • It's crucial to check the l...
  • Balancing the number of scr...

Final Test

Revision Tests