Pauline Leota
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Diploma Geotechnical Engineering 2 Quiz sobre Geotech 2 Soil Pressure, criado por Pauline Leota em 16-05-2015.

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Pauline Leota
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Geotech 2 Soil Pressure

Questão 1 de 12

1

The pressure at depth in a soil can be divided into two parts :

Selecione uma das seguintes:

  • 1 .The pressures due to density of overlying soil
    2 .The pressures due to loads applied on the surface of the soil.

  • 1. the pressure due to the colour of the soil
    2. the pressure due to the weight of its smell

Explicação

Questão 2 de 12

1

The total stress of the soil can be found with which formula

Selecione uma das seguintes:

  • sigma = rho . g . h

  • u = rho(w) .g . h(w)

  • sigma' = sigma - u

Explicação

Questão 3 de 12

1

Total Stress is the stress or pressure calculated by multiplying bulk density by depth.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 4 de 12

1

Pore Water Pressure u =rho (w) .g . hw

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 5 de 12

1

Effective Stress '
is numerically equal to Total stress - pore water pressure.

Effective Stress ' = Total stress - Pore water pressure u

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 6 de 12

1

Where the foundation shape is not symmetrical the pressure beneath the foundation will vary with lateral position as well as depth. The pressure under any corner of the foundation at a particular depth can be computed using a Newmark Chart

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 7 de 12

1

What is the procedure for drawing a Newmark chart?

Selecione uma ou mais das seguintes:

  • 1. The depth at which it is proposed to calculate the depth is decided.

  • 2. The plan of the foundation is drawn so that the unit distance AB shown on the chart = depth.

  • 3. Each corner of the plan is placed at the centre of the chart and the number of segments
    covered is counted.

  • 4. Pressure at that corner at that depth is calculated by multiplying the number of segments x
    applied surface stress q influence factor for the chart (0.005)

  • Pressure = N x q x I

  • 5. If pressure at a different depth is required repeat steps 2-4 with AB = depth.

Explicação

Questão 8 de 12

1

What is Active Earth Pressure?

Selecione uma das seguintes:

  • Pressure of the soil which results from a slight movement of the structure away from the soil. This is the minimum pressure that the soil can apply.
    The amount of movement required varies with the soil type as the following table shows.

  • pressure that a soil will exert when a slight displacement of the structure towards the soil occurs. This is the maximum pressure that a soil can exert.

Explicação

Questão 9 de 12

1

Passive Resistance or Passive Earth Pressure of the soil is the pressure that a soil will exert when a slight displacement of the structure towards the soil occurs. Passive pressure is the maximum pressure that a soil can exert.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 10 de 12

1

In both methods we will assume that the backfill material behind the wall is dry cohesionless soil - a reasonable assumption where free draining scoria backfill is used and adequate drainage provided

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 11 de 12

1

What three types of surcharge loading are commonly encountered :

Selecione uma ou mais das seguintes:

  • Distributed Loads

  • Line Loads

  • Point or Concentrated loads

  • Wide loads

  • Rectangular shaped loads

Explicação

Questão 12 de 12

1

Distributed loads - Coulomb's method are Calculate force added to each wedge by multiplying Ws x top length of wedge x 1.0 and adding force to wedge weight.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

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