Recent questions in Foundation Engineering / GO Civil

0 votes

0 answers

41

GATE2017 CE-1: 46
It is proposed to drive H-piles up to a depth of $7$ m at a construction site. The average surface area of the H-pile is $3 \: m^2$ ... . The total axial frictional resistance (in kN, up to one decimal place) mobilized on the pile against the driving is _____________

It is proposed to drive H-piles up to a depth of $7$ m at a construction site. The average surface area of the H-pile is $3 \: m^2$ per meter length. The soil at the site...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 26, 2018

0 votes

0 answers

42

GATE2017 CE-1: 47
The infinite sand slope shown in the figure is on the verge of sliding failure. The ground water table coincides with the ground surface. Unit weight of water $\gamma_w = 9.81 \: kN/m^3$. The value of the effective angle of internal friction (in degrees, up to one decimal place) of the sand is ________.

The infinite sand slope shown in the figure is on the verge of sliding failure. The ground water table coincides with the ground surface. Unit weight of water $\gamma_w =...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 26, 2018

0 votes

0 answers

43

GATE2015-2-13
In friction circle method of slope stability analysis, if $r$ defines the radius of the slip circle, the radius of friction circle is: $r \sin \phi$ $r$ $r \cos \phi$ $r \tan \phi$

In friction circle method of slope stability analysis, if $r$ defines the radius of the slip circle, the radius of friction circle is:$r \sin \phi$$r$$r \cos \phi$$r \tan...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 26, 2018

0 votes

0 answers

44

GATE2015-2-14
Net ultimate bearing capacity of a footing embedded in a clay stratum increases with depth of footing only increases with size of footing only increases with depth and size of footing is independent of depth and size of footing

Net ultimate bearing capacity of a footing embedded in a clay stratumincreases with depth of footing onlyincreases with size of footing onlyincreases with depth and size ...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 26, 2018

0 votes

0 answers

45

GATE2015-2-15
Surcharge loading required to be placed on the horizontal backfill of a smooth retaining vertical wall so as to completely eliminate tensile crack is: $2 \: c$ $2 \: c \: k_a$ $2 c \sqrt{k_a}$ $2 c/ \sqrt{k_a}$

Surcharge loading required to be placed on the horizontal backfill of a smooth retaining vertical wall so as to completely eliminate tensile crack is:$2 \: c$$2 \: c \: k...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 26, 2018

0 votes

0 answers

46

GATE2015-2-41
A $6$ m high retaining wall having a smooth vertical back face retains a layered horizontal backfill. Top $3$ m thick layer of the backfill is sand having an angle of internal friction. $\phi = 30^{\circ}$ while the bottom layer is $3$ m thick clay with cohesion, $c=20$ ... $150$ $216$ $156$ $196$

A $6$ m high retaining wall having a smooth vertical back face retains a layered horizontal backfill. Top $3$ m thick layer of the backfill is sand having an angle of int...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 26, 2018

0 votes

0 answers

47

GATE2015-1-14
In an unconsolidated undrained triaxial test, it is observed that an increase in cell pressure from $150$ kPa to $250$ kPa leads to a pore pressure increase $80$ kPa. It is further observed that, an increase of $50$ kPa in deviatoric stress results in an increase of $25$ kPa in the pore pressure. The value of $\textit{Skempton’s pore pressure parameter B}$ is $0.5$ $0.625$ $0.8$ $1.0$

In an unconsolidated undrained triaxial test, it is observed that an increase in cell pressure from $150$ kPa to $250$ kPa leads to a pore pressure increase $80$ kPa. It ...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 26, 2018

0 votes

0 answers

48

GATE2015-1-40
A $20$ m thick clay layer is sandwiched between a silty sand layer and a gravelly sand layer. The layer experiences $30$ mm settlement in $2$ ... of consolidation of the layer is $0.003 \: cm^2/s$, the deposit will experience a total of $50$ mm settlement in the next _____ years.

A $20$ m thick clay layer is sandwiched between a silty sand layer and a gravelly sand layer. The layer experiences $30$ mm settlement in $2$ years.Given:$T_v = \begin{ca...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 26, 2018

0 votes

0 answers

49

GATE2015-1-42
A square footing $(2\:m \times 2\:m)$ is subjected to an inclined point load, $P$ as shown in the figure below. The water table is located well below the base of the footing. Considering one-way eccentricity, the $\textit{net safe}$ load carrying capacity of the footing for a factor ... : $F_{qd} = F_{\gamma d} = 1.113$; Inclination factors: $F_{qi} = 0.444, \: F_{\gamma i}=0.02$

A square footing $(2\:m \times 2\:m)$ is subjected to an inclined point load, $P$ as shown in the figure below. The water table is located well below the base of the foot...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 26, 2018

0 votes

0 answers

50

GATE2014-2-40
A circular raft foundation of $20$ m diameter and $1.6$ m thick is provided for a tank that applies a bearing pressure of $110$ kPa on sandy soil with Young’s modulus, $E_s’=30$ MPa and Poisson’s ratio, $v_s=0.3$. The raft is made of concrete ($E_c=30$ GPa and $v_c=0.15$). Considering the raft as rigid, the elastic settlement (in mm) is $50.96$ $53.36$ $63.72$ $66.71$

A circular raft foundation of $20$ m diameter and $1.6$ m thick is provided for a tank that applies a bearing pressure of $110$ kPa on sandy soil with Young’s modulus, ...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

0 votes

0 answers

51

GATE2014-2-39
A single vertical friction pile of diameter $500$ mm and length $20$ m is subjected to a vertical compressive load. The pile is embedded in a homogeneous sandy stratum where; angle of internal friction $(\phi)=30^{\circ}$ ... $(K)=2.7$ and the bearing capacity factor $(N_q)=25$, the ultimate bearing capacity of the pile (in kN) is ________

A single vertical friction pile of diameter $500$ mm and length $20$ m is subjected to a vertical compressive load. The pile is embedded in a homogeneous sandy stratum wh...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

0 votes

0 answers

52

GATE2014-1-15
The action of negative skin friction on the pile is to increase the ultimate load on the pile reduce the allowable load on the pile maintain the working load on the pile reduce the settlement of the pile

The action of negative skin friction on the pile is toincrease the ultimate load on the pilereduce the allowable load on the pilemaintain the working load on the pileredu...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

0 votes

0 answers

53

GATE2014-1-13
The degree of disturbance of the sample collected by the sampler is expressed by a term called the “area ratio”. If the outer diameter and inner diameter of the sampler are $D_o$ and $D_i$ respectively, the area ratio is given by $\dfrac{D_o^2-D_i^2}{D_i^2} \\$ $\dfrac{D_i^2-D_o^2}{D_i^2} \\$ $\dfrac{D_o^2-D_i^2}{D_o^2} \\$ $\dfrac{D_i^2-D_0^2}{D_o^2}$

The degree of disturbance of the sample collected by the sampler is expressed by a term called the “area ratio”. If the outer diameter and inner diameter of the sampl...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

0 votes

0 answers

54

GATE Civil 2013 | Question: 53
A multistory building with a basement is to be constructed. The top $4$ m consists of loose silt, below which dense sand layer is present up to a great depth. Ground water table is at the surface. The foundation consists of the basement slab of $6$ ... and rigidity corrections, the immediate settlement of the dense sand layer will be $58$ mm $111$ mm $126$ mm $179$ mm

A multistory building with a basement is to be constructed. The top $4$ m consists of loose silt, below which dense sand layer is present up to a great depth. Ground wate...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

0 votes

0 answers

55

GATE Civil 2013 | Question: 52
A multistory building with a basement is to be constructed. The top $4$ m consists of loose silt, below which dense sand layer is present up to a great depth. Ground water table is at the surface. The foundation consists of the basement slab of $6$ m width which ... safety $=3$, the net safe bearing capacity (in $kN/m^2$) of the foundation is $610$ $320$ $983$ $693$

A multistory building with a basement is to be constructed. The top $4$ m consists of loose silt, below which dense sand layer is present up to a great depth. Ground wate...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

0 votes

0 answers

56

GATE Civil 2013 | Question: 25
The latitude and departure of a line AB are $+78$ m and $-45.1$ m respectively. The whole circle bearing of the line AB is $30^{\circ}$ $150^{\circ}$ $210^{\circ}$ $330^{\circ}$

The latitude and departure of a line AB are $+78$ m and $-45.1$ m respectively. The whole circle bearing of the line AB is $30^{\circ}$$150^{\circ}$$210^{\circ}$$330^{\ci...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

0 votes

0 answers

57

GATE Civil 2013 | Question: 15
Four columns of a building are to be located within a plot size of $10 \: m \times 10 \: m$. The expected load on each column is $4000$ kN. Allowable bearing capacity of the soil deposit is $100 \: kN/m^2$. The type of foundation best suited is isolated footing raft foundation pile foundation combined footing

Four columns of a building are to be located within a plot size of $10 \: m \times 10 \: m$. The expected load on each column is $4000$ kN. Allowable bearing capacity of ...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

0 votes

0 answers

58

GATE Civil 2012 | Question: 49
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 $=2.70$ and void ratio $=0.85$. The sheet pile wall and the bottom of the soil are impermeable. The factor of safety against the occurrence of piping failure is $3.55$ $2.93$ $2.60$ $0.39$

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...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

0 votes

0 answers

59

GATE Civil 2012 | Question: 48
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 $=2.70$ and void ratio $0.85$. The sheet pile wall and the bottom of the soil are impermeable. The seepage loss (in $m^3$ per day per unit length of the wall) of water is $0.33$ $0.38$ $0.43$ $0.54$

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...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

0 votes

0 answers

60

GATE Civil 2012 | Question: 37
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 properties of the soil are: specific gravity $=2.7$, natural moisture content $=45 \%$, compression ... the primary consolidation settlement (rounded off to the nearest mm) is $2$ mm $9$ mm $14$ mm $16$ mm

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...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

0 votes

0 answers

61

GATE Civil 2012 | Question: 15
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). Assuming undrained general shear failure and bearing capacity factor of $5.7$, the maximum height (in m) of the embankment at the point of failure is $7.1$ $5.0$ $4.5$ $2.5$

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...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

0 votes

0 answers

62

GATE2018 CE-2: 45
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. The perimeter of a individual pile is $126$ cm. The size of pile group is $240$ ... of $16 \: kN/m^3$. The negative frictional load (in kN, up to two decimal places) acting on the pile group is _____

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. ...

gatecse

4.0k points

gatecse asked Feb 17, 2018

0 votes

0 answers

63

GATE2018 CE-2: 32
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 is prevented from yielding (no movement), the total horizontal thrust (in kN per unit length) on the wall is $0$ $30$ $45$ $270$

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...

gatecse

4.0k points

gatecse asked Feb 17, 2018

0 votes

0 answers

64

GATE2018 CE-2: 18
The initial concavity in the load-penetration curve of a CBR test is NOT due to uneven top surface high impact at start of loading inclined penetration plunger soft top layer of soaked soil

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...

gatecse

4.0k points

gatecse asked Feb 17, 2018

0 votes

0 answers

65

GATE2018 CE-2: 9
The contact pressure and settlement distribution for a footing are shown in the figure. The figure corresponds to a rigid footing on a granular soil flexible footing on a granular soil flexible footing on saturated clay rigid footing on cohesive soil

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...

gatecse

4.0k points

gatecse asked Feb 17, 2018

–1 votes

1 answer

66

GATE2018 CE-1: 47
A rigid smooth retaining wall of height $7$ m with vertical backface retains saturated clay ass backfill. The saturated unit weight and undrained cohesion of the backfill are $17.2 \: kN/m^3$ and $20 \: kPa$, respectively. The difference in the active ... ( in $kN$ per meter length of wall, up to two decimal places), before and after the occurrence of tension crack is _____

A rigid smooth retaining wall of height $7$ m with vertical backface retains saturated clay ass backfill. The saturated unit weight and undrained cohesion of the backfill...

gatecse

4.0k points

gatecse asked Feb 17, 2018

0 votes

0 answers

67

GATE2018 CE-1: 31
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, $\gamma = 18.0 \: kN/m^3$. The design capacity of the pile $500$ kN. The adhesion factor $\alpha$ is given as ... pile required for the above design load with a factor of safety of $2.0$ is $5.2$ m $5.8$ m $11.8$ m $12.5$ m

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 = ...

gatecse

4.0k points

gatecse asked Feb 17, 2018

0 votes

0 answers

68

GATE2018 CE-1: 10
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 situation where the water level is at a depth much greater than the width of footing, is approximately $0$ $25$ $50$ $100$

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...

gatecse

4.0k points

gatecse asked Feb 17, 2018

0 votes

0 answers

69

GATE2018 CE-1: 11
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 bearing capacity of circular footing to that of square footing will be $4/3$ $1$ $3/4$ $2/3$

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...

gatecse

4.0k points

gatecse asked Feb 17, 2018