Excessive water pressure development in backfill area is not related to effectiv

Question

Excessive water pressure development in backfill area is not related to effectiveness of water drainage through retaining wall weep holes.

Cohesive soils are typically better foundation material for retaining wall than granular soils due to lower permeation of the soil property.

This is a type of retaining wall first used in France. the retaining wall consists of reinforced strips and geotextile to construct retaining structure using mainly cohesionless soils. What is this type of retaining wall?

when sheet piling is used to construct a retaining wall, Factor of safety is increased by driving the sheet pile deeper into soil.

what is the most common sign of distress regarding retaining wall failure?

Select reason(s) for retaining wall failure (multiple selection)

Explanation / Answer

1) False. Excessive water pressure development in backfill area is related to effectiveness of water drainage through retaining wall weep holes.

2) False. Cohesionless soils are more better than cohisive soils. Because in cohesive soils, swelling and shrinkage properties are more which are undesirable.

3)Optio 4 is correct. Soil nailing walls are used in france for cohesion less soils.

4) True. FOS will be increased through insert a sheet pile into the soil.

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