Recent questions tagged soil-mechanics

Based on the Casagrande's plasticity chart, plasticity index (in $\%$) of inorganic clays having a liquid limit of $40 \%$, ranges between$18.0$ and $28.8$$14.6$ and $28....

Information related to foundation design is provided in table below.\[\begin{array}{|l|l|}\hline\text{Column 1} & \text{Column 2} \\\hline\text{(I) Converse-Labarre formu...

A fully saturated sandy soil deposit has water content $20 ~\%$ and specific gravity $2.65$.The critical hydraulic gradient for seepage through the soil to create the qui...

A shallow footing is subjected to a vertical load. Within the elastic limit of the underlying soil, the TRUE statement(s) is/are:Vertical displacement below a rigid shall...

For a clayey soil stratum, the time required for degree of consolidation from $25 \%$ to $50 \%$ is $30$ days.The total time (in days) required for $90 \%$ degree of cons...

The ultimate bearing capacity of a $1 \text{ m}$ wide strip footing is $532.80 \text{ kPa}$ , when it is embedded at $1 \text{ m}$ depth in dry cohesionless soil. The soi...

A building is proposed in an area having thick deposit of silty clay. The water table is at the ground surface. The saturated unit weight of soil is $18 ~\mathrm{kN} / \m...

A soil sample has following properties:Natural water content $=30$ $\%$Plasticity index $=40$ $\%$Liquidity index $=50$ $\%$The estimated plastic limit (in $\%$) of the s...

​​​​​​The name of a person in Column $1$ is to be matched with the test mentioned in Column $2$.\[\begin{array}{|l|l|}\hline\text{Column 1} & \text{Column 2} \\\hline(I)\...

For a liquid, the permeability of a sandy soil having a void ratio of $0.60$ was determined as $0.14 \mathrm{~cm} / \mathrm{s}$. Considering the same liquid and by using ...

To obtain undisturbed clay soil sample, an Area Ratio of $10 \%$ needs to be achieved for a thin walled sampling tube. If the outer diameter of the tube is $50.8$ mm , th...

As per the Rankine's earth pressure theory, which of the following statements is/are FALSE?For the active earth pressure, the inclination of failure plane is $\left(45^{\...

An infinite slope with slope angle $\beta=22^{\circ}$ consists of soil with the following properties:Unit weight $\gamma=15.72 ~\mathrm{kN} / \mathrm{m}^{3}$Cohesion $c^{...

A circular pile of $600 \text{ mm}$ diameter and $6 \text{ m}$ length is embedded in a saturated clayey soil. Undrained cohesion of the soil is $80 \text{ kPa}$ . Unit we...

A group of $25$ circular piles is arranged in $5 \times 5$ uniform pattern in a soft clay soil with equal spacing in both the directions. These are friction piles with ne...

A shallow strip footing of width $2$ m is embedded at a depth of $1.5$ m below the ground surface in a homogeneous pure clay with an angle of internal friction zero. Cons...

For a partially saturated soil deposit at a construction site, water content $(w)$ is $15 \%$, degree of saturation $(S)$ is $67 \%$, void ratio $(e)$ is $0.6$ and specif...

In the context of shear strength of soil, which of the following statements is/are CORRECT?The unconfined compression test is a special case of the unconsolidated-undrain...

The bank of a canal has the profile shown in the figure. The material is a homogeneous clay with a bulk unit weight of $20 \: \mathrm{kN} / \mathrm{m}^{3}$, undrained coh...

​​​​In an oedometer apparatus a specimen of fully saturated clay has been consolidated under a vertical pressure of $100 \mathrm{ kPa}$ and is at equilibrium state. Immed...

A cut slope is made in a silty clay soil for a new road project, as shown in the figure. The locations of ground water table (GWT) and potential failure surface are shown...

A reinforced concrete pile of $10 \mathrm{~m}$ length and $0.7 \mathrm{~m}$ diameter is embedded in a saturated pure clay with unit cohesion of $50 \mathrm{kPa}$. If the ...

Consider the statements $\mathrm{P}$ and $\mathrm{Q}$ related to the analysis/design of retaining walls.$\mathrm{P}$: When a rough retaining wall moves toward the backfil...

​​​​​Consider the statements $\text{P, Q,}$ and $\text{R}$.$\text{P}$: Compacted fine-grained soils with flocculated structure have isotropic permeability.$\text{Q}$: Phr...