What can significantly reduce the bearing capacity of soil in relation to pavement?
Understand the Problem
The question is asking which factor can significantly decrease the soil's ability to support loads from pavement structures. It requires an understanding of soil mechanics and the interactions between soil and pavement materials.
Answer
Frost action, soil saturation from thawing, and excess pore pressure reduce soil bearing capacity.
The bearing capacity of soil in relation to pavement can be significantly reduced by frost action, which reduces the relative density of the subgrade material, saturation of the soil caused by thawing, and excess pore pressure.
Answer for screen readers
The bearing capacity of soil in relation to pavement can be significantly reduced by frost action, which reduces the relative density of the subgrade material, saturation of the soil caused by thawing, and excess pore pressure.
More Information
The reduction in soil bearing capacity is often most noticeable during the spring when frost melts and the soil becomes saturated with water, leading to instability in the pavement structure.
Tips
A common mistake is not accounting for seasonal changes, especially thawing after winter, which can lead to unexpected pavement failure.
Sources
- The web page with info on - Example Source - onlinepubs.trb.org
- Factors Affecting Bearing Capacity of Soil - Ideal Geotech - idealgeotech.com.au
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