Question

Which of the following variables is not considered in the timber shoring tables found in appendix C?

1) Soil type
2) Timber species
3) Shoring height
4) Shoring width

Answer 1

The shoring width is not considered in the timber shoring tables found in appendix C; instead, the tables include soil type, timber species, and shoring height as key variables.

Step-by-step explanation:

The variable not considered in the timber shoring tables found in appendix C is the shoring width. The tables typically account for factors such as:

• Soil type - which affects the pressure exerted on the shoring system due to its various properties.
• Timber species - as different species have different strength characteristics.
• Shoring height - because the taller the shoring, the greater the potential for buckling or failure.

Shoring width is generally determined by the specific trench or excavation requirements but is not directly referenced in the standardized tables for shoring design within the appendix in question. The considerations detailed within these tables are focused primarily on the structural capacity of the shoring material in its operational environment.