(25 points) A CAT 385FCS shovel is loading well-blasted rock (Fill Factor=85%) on a highway project. The average face height is expected to be 22’. Most of the cut will require a 150 degree swing of the shovel to load the haul units. What is a conservative production estimate in bcy/hr if the swell is 60%? Assume a 50-min/hr efficiency. Cycle time under ideal conditions is 35s. The optimum digging height (or depth) is 50% of the maximum digging height (or depth). To use table: Percentage of optimum height = Average Face Height/ Optimum Digging Height   HINTS: Obtain required dimensions of the shovel from CAT44, Chapter 7. No need to interpolate from given table. Use closest value.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
icon
Related questions
icon
Concept explainers
Question

. (25 points) A CAT 385FCS shovel is loading well-blasted rock (Fill Factor=85%) on a highway project. The average face height is expected to be 22’. Most of the cut will require a 150 degree swing of the shovel to load the haul units. What is a conservative production estimate in bcy/hr if the swell is 60%? Assume a 50-min/hr efficiency. Cycle time under ideal conditions is 35s.

  • The optimum digging height (or depth) is 50% of the maximum digging height (or depth).
  • To use table: Percentage of optimum height = Average Face Height/ Optimum Digging Height

 

HINTS:

  • Obtain required dimensions of the shovel from CAT44, Chapter 7.
  • No need to interpolate from given table. Use closest value.

 

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Foundation Construction
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Structural Analysis
Structural Analysis
Civil Engineering
ISBN:
9781337630931
Author:
KASSIMALI, Aslam.
Publisher:
Cengage,
Structural Analysis (10th Edition)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Sustainable Energy
Sustainable Energy
Civil Engineering
ISBN:
9781337551663
Author:
DUNLAP, Richard A.
Publisher:
Cengage,
Traffic and Highway Engineering
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning