Question

Regarding geotextiles used in roadway separation:

1. What is the required burst pressure of a geotextile supporting 75 mm maximum-size stone and heavy trucks with a tire inflation pressure of 1000 kPa? Use p ~ 0.75 pa, a cumulative reduction factor of 2.0, and a factor of safety of 2.0?

2. What is the required burst pressure of a geotextile under the same conditions in part (a) except that now the road will haul only light vehicles of tire inflation pressure of 500 kPa.

Answer 1