Civil Engineering Chapter 22 Homework Prepare The Base For The Construction Described

Document Type
Homework Help
Book Title
Landscape Construction 3rd Edition
Authors
David Sauter
EXERCISE DESCRIPTION —PART A
To complete this exercise prepare a 20 foot long base for
a landscape retaining wall (Lab Manual Figure 22–5).
This base can be on a level surface that cuts across the
run of a slope or can parallel the run of a slope, gradually
stepping up it.
EXERCISE SETUP
Review safety concerns with students before beginning
this exercise. Combining this exercise with other wall
EVALUATION RECOMMENDATIONS
Evaluation of this exercise should include the following
criteria:
Areas of unsuitable soil were recognized.
Changes in elevation were addressed in
excavation.
Base material was installed and compacted.
EXERCISE DESCRIPTION—PART B
To complete this exercise construct a 20 foot long base
segment of landscape retaining wall two courses high
using both ties/timbers and segmental units or stone
(Lab Manual Figure 22–6). This wall should include a
this exercise. Combining this exercise with other wall
projects in this section will improve the efficiency of the
exercise. To perform the exercise the following will need
to be completed:
Select a site that has a flat portion and a slight
Exercise 22
Wall Base Preparation
and Wall First Course
Installation/Stepping
First Course
3555X_01_ch01-40_p001-048.indd 28 14/06/10 7:48 PM
GRADING SCALE
Grading for installation of wall material should include
the following scaled criteria:
Pt
Value Criteria Levels
3 Alignment Properly aligned with wall
Placed at an angle to wall
Set in front of or behind wall
3 Adjacent Flush with neighboring unit
units 1/4 inch or less above or below
neighboring unit
More than 1/4 inch above or
below neighboring unit
Exercise 22 Wall Base Preparation and Wall First Course Installation/Stepping First Course 29
3555X_01_ch01-40_p001-048.indd 29 14/06/10 7:48 PM

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