MasterrrrBlasterrrr
Structural
- Oct 15, 2011
- 13
Hi
My question is regarding the use of "allowable" lateral bearing stress in rock, in the case of a cantilever pile wall design.
The design scenario is a concrete pile wall (soldier pile, or contiguous pile) where the restraining material the piles are embedded into is rock (say Class V sandstone), and they are retaining soil, and a surcharge.
In using the "allowable" lateral bearing stress in the rock of 1/3 the allowable vertical bearing stress.
So for this example, an allowable vertical stress of 800 kPa, and an allowable lateral stress of 267 kPa:
If I want to determine the required socket length using the "allowable" lateral stress - do I check it against the working loads on the wall? Or
Would I apply a safety factor on the "allowable" stress (e.g. 1.5) and use a "reduced allowable" stress of (267/1.5 = 178kPa)?
Thanks
My question is regarding the use of "allowable" lateral bearing stress in rock, in the case of a cantilever pile wall design.
The design scenario is a concrete pile wall (soldier pile, or contiguous pile) where the restraining material the piles are embedded into is rock (say Class V sandstone), and they are retaining soil, and a surcharge.
In using the "allowable" lateral bearing stress in the rock of 1/3 the allowable vertical bearing stress.
So for this example, an allowable vertical stress of 800 kPa, and an allowable lateral stress of 267 kPa:
If I want to determine the required socket length using the "allowable" lateral stress - do I check it against the working loads on the wall? Or
Would I apply a safety factor on the "allowable" stress (e.g. 1.5) and use a "reduced allowable" stress of (267/1.5 = 178kPa)?
Thanks
