©JUSTTRACY EXAM SOLUTIONS
19/11/2024 3:50pm
Soil Mechanics Modified Exam
Questions And Improved Responses
Define Consolidation - answers✔✔settlement that occurs over time in fine grained soils
Amount of settlement is ____________ to the 1D strain caused by variation in effective stress
- answers✔✔proportional
Rate of settlement is a function of - answers✔✔soil type, geometry of the profile,
mathematical solution between a time factor and percent consolidation occurred.
What is H* - answers✔✔the total height of clay/by the number of drainage faces
Define Normally consolidated clay - answers✔✔the current stress is the max the soil has ever
had
Define OVerconsolidated - answers✔✔the maximum stress occured in the past (Max pressure
past>current stress)
Define the Virgin Consolidation Curve - answers✔✔the line on the e-log p curve that
signifies the first time the soil experiences that stress
Define Controlled Densification - answers✔✔process of increasing the density using the
modification of the water content and mechanical manipulation
Define compaction - answers✔✔the increase in unit weight obtained by controlled
densification
Fine Soils use _________________________ test for compaction - answers✔✔Ralph R.
Proctor
, ©JUSTTRACY EXAM SOLUTIONS
19/11/2024 3:50pm
Coarse Soils _______________________ test for compaction - answers✔✔relative density
test
The peak dry unit weight is called - answers✔✔maximum dry density
The optimum water content is based - answers✔✔the maximum dry density
What is the Zero air void curve - answers✔✔max dry density that would occur if all void
space were filled with water
What is the typical range of acceptable water contents - answers✔✔+ or- 3-2%
Define the Terzaghi and Peck model - answers✔✔different pipes at different depths in the
clay and how they are affected.
As the load P increases, the void ratio of the solid __________ - answers✔✔decreases
If a bedrock soil was changed out with sand, the time it should take for settlement to occur
would be _____________ but the overall amount of settlement that occurs will be
________________ - answers✔✔less, same
IF there was drainable sand, the time for settlement would be, but the amount of settlement
would remain the same - answers✔✔less
Any point on the e-log p-curve that is straight is called the _______________
___________________ curve - answers✔✔virgin consolidation
A soil's void ratio at any time is dependent on _____________ ______________ -
answers✔✔max. stresses
Dry side of optiumum is the ___________ side of the compaction curve - answers✔✔left
19/11/2024 3:50pm
Soil Mechanics Modified Exam
Questions And Improved Responses
Define Consolidation - answers✔✔settlement that occurs over time in fine grained soils
Amount of settlement is ____________ to the 1D strain caused by variation in effective stress
- answers✔✔proportional
Rate of settlement is a function of - answers✔✔soil type, geometry of the profile,
mathematical solution between a time factor and percent consolidation occurred.
What is H* - answers✔✔the total height of clay/by the number of drainage faces
Define Normally consolidated clay - answers✔✔the current stress is the max the soil has ever
had
Define OVerconsolidated - answers✔✔the maximum stress occured in the past (Max pressure
past>current stress)
Define the Virgin Consolidation Curve - answers✔✔the line on the e-log p curve that
signifies the first time the soil experiences that stress
Define Controlled Densification - answers✔✔process of increasing the density using the
modification of the water content and mechanical manipulation
Define compaction - answers✔✔the increase in unit weight obtained by controlled
densification
Fine Soils use _________________________ test for compaction - answers✔✔Ralph R.
Proctor
, ©JUSTTRACY EXAM SOLUTIONS
19/11/2024 3:50pm
Coarse Soils _______________________ test for compaction - answers✔✔relative density
test
The peak dry unit weight is called - answers✔✔maximum dry density
The optimum water content is based - answers✔✔the maximum dry density
What is the Zero air void curve - answers✔✔max dry density that would occur if all void
space were filled with water
What is the typical range of acceptable water contents - answers✔✔+ or- 3-2%
Define the Terzaghi and Peck model - answers✔✔different pipes at different depths in the
clay and how they are affected.
As the load P increases, the void ratio of the solid __________ - answers✔✔decreases
If a bedrock soil was changed out with sand, the time it should take for settlement to occur
would be _____________ but the overall amount of settlement that occurs will be
________________ - answers✔✔less, same
IF there was drainable sand, the time for settlement would be, but the amount of settlement
would remain the same - answers✔✔less
Any point on the e-log p-curve that is straight is called the _______________
___________________ curve - answers✔✔virgin consolidation
A soil's void ratio at any time is dependent on _____________ ______________ -
answers✔✔max. stresses
Dry side of optiumum is the ___________ side of the compaction curve - answers✔✔left
