A compacted fill slope is to be made of a soil with a c' = 200 lb/ft?, p'= 30° and y= 122 Ib/ft. Using an infinite slope analysis and assuming a failure surface 4.0 ft vertically below the ground surface and a groundwater table 1.3 ft below the ground surface, determine the steepest allowable slope ratio that will maintain a factor of safety at least 1.5. This analysis considers only surficial stability and a separate analysis would need to be conducted to evaluate the potential for a deep-seated slide in the fill. Hint: This may involve iteration using a spreadsheet or a similar approach.

A compacted fill slope is to be made of a soil with a c' = 200 lb/ft?, p'= 30° and y= 122 Ib/ft. Using an infinite slope analysis and assuming a failure surface 4.0 ft vertically below the ground surface and a groundwater table 1.3 ft below the ground surface, determine the steepest allowable slope ratio that will maintain a factor of safety at least 1.5. This analysis considers only surficial stability and a separate analysis would need to be conducted to evaluate the potential for a deep-seated slide in the fill. Hint: This may involve iteration using a spreadsheet or a similar approach.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Sediment transport

Sediment transport or Soil transport is the movement of solid particles, usually due to the combination of gravitational forces acting on the sediment, and the movement of the liquid at which the sediment enters. Soil erosion occurs in natural systems where the particles are sandstones (sand, rocks), mud, or clay; the liquid is air, water, or ice; and the gravitational force that works to move particles to the landing surface. Sediment transportation or soil migration due to the movement of liquids occurs in rivers, lakes, lakes, oceans, and other bodies of water as a result of currents and waves. Transportation is also caused by glaciers as they flow, and to places on earth under the influence of wind. Soil erosion due to gravity alone is possible in most sloping areas, including hills, scarves, cliffs, and the continental shelf — the continental boundary of the slope.

Question

A compacted fill slope is to be made of a soil with a c' = 200 lb/ft?, p'= 30° and
y= 122 Ib/ft. Using an infinite slope analysis and assuming a failure surface 4.0 ft
vertically below the ground surface and a groundwater table 1.3 ft below the ground
surface, determine the steepest allowable slope ratio that will maintain a factor of safety
at least 1.5. This analysis considers only surficial stability and a separate analysis would
need to be conducted to evaluate the potential for a deep-seated slide in the fill. Hint:
This may involve iteration using a spreadsheet or a similar approach.

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