LANDSLIDES AND SURFACE FUNCTIONS

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LANDSLIDES AND SURFACE FUNCTIONS

• FE423 - January 27, 2000

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OUTLINE

• Your labs
• Design
• Designing the project

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Labs

• Hillshade - use elev or image
• spaces in file names - bad web protocol
• single space code - hard to read
• look at each others labs - theyre good!

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Designing Your Labs
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Infinite Hillslope Approximation

• qo is the surcharging weight of the vegetation
• ? is the angle of the slope
• ? is the friction angle of the soil
• C is the soil cohesion
• Cr is the root reinforcement
• h is the soil thickness
• z is the saturated thickness
• gw is the unit weight of water
• gs is the unit weight of saturated soil

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Overall Process
literature
Stand cover
dem
Soil cover
Grids of Slope, Cohesion, friction
FS_grid
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Stability Calculation
slope_grid
q0_grid
z
phi_grid
gw
Cr_grid
gs_grid
h_grid
C_grid
FS_grid
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Getting Data
Soil cover
description
Soil grid
literature
C,phi
phi_grid
C_grid