Internal Stability Tab (for Geogrid Reinforced Walls)
Internal Stability Tab
Displays internal stability table:
Layer: Displays geogrid layer numbers.
Height, ft: Displays the height from the base to the elevation of each geogrid layer.
Trib Height: Displays the tributary height of each geogrid layer.
Depth to Midpoint: Displays the distance from the top of the wall to each geogrid layer.
Tension from Soil: Displays the tension in each layer of geogrid due to lateral earth pressure from the soil.
Tension from DL Surcharge: Displays the tension in each layer of geogrid due to lateral earth pressure from a dead load surcharge.
Tension from LL Surcharge: Displays the tension in each layer of geogrid due to lateral earth pressure from a live load surcharge.
Static Total Tension, Fg: The sum of Tension from Soil plus Tension from DL Surcharge plus Tension from LL Surcharge.
LTDS: Echoes the Long Term Design Strength of the selected geogrid.
LTDSseismic: Echoes the Long Term Design Strength for seismic design of the selected geogrid.
Total Tension (w/ Seismic), Fi: Total tension in the geogrid when subjected to the load condition that includes seismic loading.
FS Tensile Overstress (static): LTDS / Static Total Tension
FS Tensile Overstress (w/ seismic): LTDSseismic / Total Tension (w/ seismic), Fi
Pullout Strength: Ability of the geogrid to resist pullout failure.
FS Pullout (static): Pullout Strength / Static Total Tension, Fg
FS Pullout (w/ seismic): Pullout Strength / Total Tension (w/ seismic), Fi
Connection Strength: Connection strength of the selected block/geogrid combination.
FS Connection (static): Connection capcacity / Static Total Tension, Fg
FS Connection (w/ seismic): Connection capcacity / Total Tension (w/ seismic), Fi
Internal Sliding Force (static): The driving force at each layer of geogrid from static loading tending to cause the soil mass above to slide sideways.
FS Internal Sliding (static): Internal sliding resistance / Static internal sliding force
Internal Sliding Force (w/ seismic):The driving force at each layer of geogrid from loading including seismic tending to cause the soil mass above to slide sideways.
FS Internal Sliding (w/ seismic): Internal sliding resistance / Internal sliding force (w/ seismic)