The discussion centers on the concept of pore pressure due to capillary rise in soil mechanics, specifically questioning why there is no pore pressure at points A and D while it exists at point B. The consensus is that at point A, the soil is above the saturation zone, resulting in no pore water pressure, while at point D, the soil is fully saturated below the water table, eliminating capillary pressure due to the absence of a free surface. The correct understanding of these conditions is critical for soil analysis.
PREREQUISITESGeotechnical engineers, soil scientists, and students studying soil mechanics who need to understand the dynamics of pore pressure and capillary rise in soil profiles.
Can you please define the variables in your equations.tzx9633 said:
Huh , what do you mean ?Chestermiller said:
Having said that there's capillary rise at B , means that there is free surface (between air and water) in this zone ?Chestermiller said:
Sure.tzx9633 said:
What do the words "50% saturated" mean to you?
ok , noted . Why there is no pore pressure due to capillary rise at C ?Chestermiller said:
At C and below, the pores are completely full of water.tzx9633 said:
How do you know that there's no water at A ? How do you know that there's water at B ?Chestermiller said:
The figure implies that, between A and B, there is dry sand and between B and C, there is partially saturated sand. So, B is the top of the region containing water in some of the pores.tzx9633 said:
