Retaining wall with geotextile reinforcement is 6m high. A granular backfill has a unit weight of 15.9 kN/m3 and effective friction angle of 30°. The allowable tensile force (Tall) in the geotextile fabric is 16 kN/m. Determine the vertical spacing of fabric if the factor of safety against breakout of the geotextile is equal to 1.5? If factor of safety against the pullout is 1.5 what is the in-plane length (L) of the geotextile? Assume that the interface friction angle between the backfill soil and geotextile is equal to 2/3 of the effective friction angle of the backfill. Also compute factors of safety against the overturning and sliding of the mechanically stabilized earth wall for the previously selected dimensions of the wall. Assume that the backfill soil is also located directly below the wall.
Retaining wall with geotextile reinforcement is 6m high. A granular backfill has a unit weight of 15.9 kN/m3 and effective friction angle of 30°. The allowable tensile force (Tall) in the geotextile fabric is 16 kN/m. Determine the vertical spacing of fabric if the factor of safety against breakout of the geotextile is equal to 1.5? If factor of safety against the pullout is 1.5 what is the in-plane length (L) of the geotextile? Assume that the interface friction angle between the backfill soil and geotextile is equal to 2/3 of the effective friction angle of the backfill. Also compute factors of safety against the overturning and sliding of the
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