The discussion revolves around the concept of pore pressure due to capillary rise in soil, specifically questioning why certain points (A, B, C, D) exhibit different pore pressures. Participants explore the conditions under which capillary rise occurs and the implications for pore pressure at various depths in the soil profile.
Participants express differing views on the presence of pore pressure due to capillary rise at points A, B, C, and D. There is no consensus on the conditions that lead to capillary rise and its effects on pore pressure at these points.
Limitations in the discussion include assumptions about the saturation levels at various points and the interpretation of the soil profile depicted in the figure. The definitions of terms like "capillary rise" and "saturation" are not fully clarified, leading to potential misunderstandings.
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:
