What is negative pore water pressure in soil?
Most of the desert soils are called Aridisols.
Most of the desert soils are called Aridisols.
See lessDiscy Latest Questions
Which type of soil is present in desert?
What is the meaning of shear strength in soil?
-
Generally, shear strength is a term used in soil mechanics to describe the magnitude of the shear stress that a soil can sustain. The shear resistant of soil is a result of friction and interlocking of particles, and possibly cementation or bonding at particle contacts. Due to interlocking, particulRead more
Generally, shear strength is a term used in soil mechanics to describe the magnitude of the shear stress that a soil can sustain. The shear resistant of soil is a result of friction and interlocking of particles, and possibly cementation or bonding at particle contacts. Due to interlocking, particulate material may expand or contract in volume as it is subject to shear strength. If soil expands its volume, the density of particles will decrease and the strength will decrease; in this case the peak strength would be followed by a reduction of shear stress.
See less
What is Creep in Soil Mechanics? Why it is important?
-
Creep in soil is pretty much similar in concept to creep in general. Only the manifestation and consequences are different in different materials and can be very peculiar in soil. Creep in soil is the time dependant development of shear strains and/or volumetric strains in a soil mass in the stateRead more
Creep in soil is pretty much similar in concept to creep in general. Only the manifestation and consequences are different in different materials and can be very peculiar in soil.
Creep in soil is the time dependant development of shear strains and/or volumetric strains in a soil mass in the state of a constant effective stress for a prolonged period of time.
It is also sometimes referred to as the gradual loss of cohesion over a prolonged period of time in soil.
Unlike concrete, where creep results in deflection and cracking, creep in soil to may lead to long term settlement, movements of slopes, gradual loss of soil from slopes or shear failure.
See less
What is disturbed and undisturbed soil sample?
-
Disturbed soil sample is one in which the structure of the soil has been changed sufficiently that tests of the structural properties of the soil will not be representatives of in-situ conditions, and only properties of soil grains can be accurately determined. Undisturbed soil sample is one where tRead more
Disturbed soil sample is one in which the structure of the soil has been changed sufficiently that tests of the structural properties of the soil will not be representatives of in-situ conditions, and only properties of soil grains can be accurately determined.
Undisturbed soil sample is one where the condition of the soil in the sample is close enough to the conditions of the soil in in-situ to allow tests of structural properties of the soil to be used to approximate the properties of the soil in-situ.
See less
Which best material for backfill of retaining wall?
-
Thus when it comes to backfill, it refers to the dirt behind the wall. In order to provide proper drainage, atleast 12 inches of granular backfill (gravel or a similar aggregate) should be installed directly behind the wall. Compacted native soil can be used to backfill the rest of the space behindRead more
Thus when it comes to backfill, it refers to the dirt behind the wall. In order to provide proper drainage, atleast 12 inches of granular backfill (gravel or a similar aggregate) should be installed directly behind the wall. Compacted native soil can be used to backfill the rest of the space behind the wall.
See less
As the consolidation process continues, water will be expelled out. Why is the degree of saturation of soil treated as constant throughout the consolidation process?
-
The degree of saturation denotes the actual relationship between the weight of moisture existing in a space and the weight that would exist if the space were saturated. It can be also said as the percentage of water that occupies the pore spaces present in soil and is said to be degree of saturationRead more
The degree of saturation denotes the actual relationship between the weight of moisture existing in a space and the weight that would exist if the space were saturated.
It can be also said as the percentage of water that occupies the pore spaces present in soil and is said to be degree of saturation. Basically, the soil has three phases soil solid, water and air. If the pore and void space in the soil is fully occupied by water, then it is fully saturated and the degree of saturation is 100%. If the void space in the soil is partially occupied by water, then it is said to be partially saturated.
See less
What is the equation of A-line in the plasticity chart?
-
Fine grained soils are classified based on the plasticity chart. The equation of A line is ; Ip=0.73(liquid limit -20) Ip=plasticity index
Fine grained soils are classified based on the plasticity chart. The equation of A line is ;
Ip=0.73(liquid limit -20)
Ip=plasticity index
See less
sanjaypakad
The pressure is zero when the soil voids are filled with air, and is negative when the voids are partly filled with water (in which case surface-tension forces operate to achieve a suction effect and the shear strength of the soil is increased).
The pressure is zero when the soil voids are filled with air, and is negative when the voids are partly filled with water (in which case surface-tension forces operate to achieve a suction effect and the shear strength of the soil is increased).
See less