A soil sample has an internal friction 30°, it is subjected to axial principal effective stresses o'v and radial principal effective stresses o'h (see Figure 2). a. Given it is supported with o'h= 20 kPa, find max allowed axial principal effective stresses o', before it fails, and the inclination of the slip plane to the horizontal. b. If gradually increases o'h while keeping the found o'v in constant, find the max o'h before the soil fails, and illustrate its inclination of the slip plane.
A soil sample has an internal friction 30°, it is subjected to axial principal effective stresses o'v and radial principal effective stresses o'h (see Figure 2). a. Given it is supported with o'h= 20 kPa, find max allowed axial principal effective stresses o', before it fails, and the inclination of the slip plane to the horizontal. b. If gradually increases o'h while keeping the found o'v in constant, find the max o'h before the soil fails, and illustrate its inclination of the slip plane.
Chapter2: Loads On Structures
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Transcribed Image Text:Figure 2. Stress in a soil element.
Transcribed Image Text:A soil sample has an internal friction 30°, it is subjected to axial principal effective
stresses o'y and radial principal effective stresses o'h (see Figure 2).
a. Given it is supported with o's= 20 kPa, find max allowed axial principal effective
stresses o'v before it fails, and the inclination of the slip plane to the horizontal.
b. If gradually increases o'n while keeping the found o'v in constant, find the max ơ'n
before the soil fails, and illustrate its inclination of the slip plane.
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