Trenching and Shoring 2

Type A Sloping should be done...

• Walls be sloped 9 inches out for every 1 foot of trench depth

• Walls be sloped 1 foot out for every 1 foot of trench depth

• Walls be sloped 18 inches out for every 1 foot of trench depth

Tags

NGSS.MS-ETS1-1

Type B Sloping Should be done...

• Walls be sloped 18 inches out for every 1 foot of trench depth

• Walls be sloped 9 inches out for every 1 foot of trench depth

• Walls be sloped 1 foot out for every 1 foot of trench depth

Type C Sloping Should be done...

• Walls be sloped 9 inches out for every 1 foot of trench depth

• Walls be sloped 18 inches out for every 1 foot of trench depth

• Walls be sloped 1 foot out for every 1 foot of trench depth

Aluminum Shoring cannot be used when (select all that apply)...

• Surcharge loads are present from equipment weighing greater than 20k pounds (not spoil)

• Type C Soil Approved by an RPE

• Trench is more than 20 feet deep

• Vertical loads imposed on cross braces with a 50lb gravity load on 1 foot section

Which of the following are types of Cross Braces?

• Timber

• Hydrauilic

• Pneumatic

• Screw Jack

• Chain Wench