Recent questions tagged geotechnical-engineering

Maximum possible value of Compacting Factor for fresh (green) concrete is$0.5$$1.0$$1.5$$2.0$

The flow net around a sheet pile wall is shown in the sketch. The properties of the soil are: permeability coefficient $0.09 \: m/day$ (isotropic), specific gravity $=2.7...

The flow net around a sheet pile wall is shown in the sketch. The properties of the soil are: permeability coefficient $0.09 \: m/day$ (isotropic), specific gravity $=2.7...

Two soil specimens with identical geometric dimensions were subjected to failing head permeability tests in the laboratory under identical conditions. The fall of water h...

Steady state seepage is taking place through a soil element at $Q$, $2$ m below the ground surface immediately downstream of the toe of an earthen dam as shown in the ske...

A layer of normally consolidated, saturated silty clay of $1$ m thickness is subjected to one dimensional consolidation under a pressure increment of $20$ kPa. The proper...

A smooth rigid retaining wall moves as shown in the sketch causing the backfill material to fail. The backfill material is homogeneous and isotrophic, and obeys the Mohr-...

As per the Indian Standard soil classification system, a sample of silty clay liquid limit of $40\%$ and plasticity index of $28\%$ is classified asCHCICLCL-ML

An embankment is to be constructed with a granular soil (bulk unit weight $=20 \: kN/m^3$) on a saturated clayey silt deposit (undrained shear strength $=25$ kPa). Assumi...

Two series of compaction tests were performed in the laboratory on an inorganic clayey soil employing two different levels of compaction energy per unit volume of soil. W...

A group of nine piles in a $ 3 \times 3$ square pattern is embedded in a soil strata comprising dense sand underlying recently filled clay layer, as shown in the figure. ...

A $3$ m high vertical earth retaining wall retains a dry granular backfill with angle of internal friction of $30^{\circ}$ and unit weight of $20 \: kN/m^3$. If the wall...

Three soil specimens (Soil $1$, Soil $2$ and Soil $3$), each $150$ mm long and $100$ mm diameter, are placed in series in a instant head flow set-up as shown in the figur...

The initial concavity in the load-penetration curve of a CBR test is NOT due touneven top surfacehigh impact at start of loadinginclined penetration plungersoft top layer...

The contact pressure and settlement distribution for a footing are shown in the figure.The figure corresponds to arigid footing on a granular soilflexible footing on a g...

Which one of the following statements is NOT correct?When the water content of soil lies between its liquid limit and plastic limit, the soil is said to be in plastic sta...

The clay mineral, whose structural units are held together by potassium bond isHalloysiteIlliteKaoliniteSmectite

A flownet below a dam consists of $24$ equipotential drops and $7$ flow channels. The difference between the upstream the upstream and downstream water levels is $6$ m. T...

A $0.5 \: m \times 0.5 \: m$ square concrete pile is to be driven in a homogeneous clayey soil having undrained shear strength $c_u=50 \: kPa$ and unit weight, $\gamma = ...

The percent reduction in the bearing capacity of a strip footing resting on sand under flooding condition (water level at the base of the footing) when compared to the si...

The width of a square footing and the diameter of a circular footing are equal. If both the footings are placed on the surface of sandy soil, the ratio of the ultimate be...