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Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
Chapter 3
EXCAVATING AND LIFTING
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
INTRODUCTION
Excavating and Lifting Equipment
An excavator is defined as a power-driven digging machine.
The major types of excavators used in earthmoving operations include hydraulic excavators and the members of the cable-operated crane-shovel family (shovels, draglines, hoes, and clamshells).
Dozers, loaders, and scrapers can also serve as excavators.
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
INTRODUCTION
Excavators and Crane Shovels
Excavator Production
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
INTRODUCTION
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
INTRODUCTION
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
INTRODUCTION
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
HYDRAULIC EXCAVATORS
Operation and Employment
The original and most common form of hydraulically powered excavator is the hydraulic excavator equipped with a hoe front end.
This machine is also called a hydraulic hoe or hydraulic excavator-backhoe.
A backhoe (or simply hoe) is an excavator designed primarily for excavation below grade.
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
HYDRAULIC EXCAVATORS
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
HYDRAULIC EXCAVATORS
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
HYDRAULIC EXCAVATORS
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
HYDRAULIC EXCAVATORS
Production Estimating
Job Management
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
HYDRAULIC EXCAVATORS
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
HYDRAULIC EXCAVATORS
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
SHOVELS
Operation and Employment
Production Estimating
Job Management
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
SHOVELS
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
SHOVELS
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
SHOVELS
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
DRAGLINES
Operation and Employment
Production Estimating
Job Management
Copyright ©2011, 2006 by Pearson Education, Inc. publishing as Pearson [imprint]
Construction Methods and Management, 8th ed. S. W. Nunnally
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