Lesson 2/Practice Exercise Answers
Lesson 2
ANSWER SHEET FOR PRACTICE EXERCISE
Learning Event
The site layout plan establishes the location and arrangement
1.
a.
Lesson Description
of the quarry and its supporting facilities.
The operations plan specifies the methods and procedures
b.
to be used in developing and operating the complex.
2.
a.
your mission
d. economy of resources
1
b.
site conditions
e. ease of operation
c.
safety
3.
300 feet
2
30 feet
= 300 feet
0.10 grade
Haul and access road should not normally have grades steeper than
10 percent for dump truck operation. Thus, for a rise of 30 meters,
you should allow at least 300 meters of uniformly-sloped access road.
4.
a spoil area
2
5.
12-foot bench height; lower benches are preferred when drilling is
2
difficult and where rockfall and rockslide hazards exist.
6.
Basically, the rock crushing, screening, and washing plant should
2
be located as close to the quarry face as possible without becoming
endangered by blasting operations.
7.
Rock crushing plants should be set up on multiple levels whenever
possible to permit the use of gravity as an aid in moving materials to
and through the plant using gravity chutes, ramps, bins, and similar
devices.
8.
You should plan to have surge piles of material at each step in the
2
rock processing operation.
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