A 6-m-high retaining wall is to support a soil with unit weight y=17 kN/m², soil friction angle +²=24°, and cohesion c'=12 kN/m². Determine 1) the depth of tensile crack behind the wall, and 2) the depth of excavation behind the wall that requires no support (zero total lateral stress).
A 6-m-high retaining wall is to support a soil with unit weight y=17 kN/m², soil friction angle +²=24°, and cohesion c'=12 kN/m². Determine 1) the depth of tensile crack behind the wall, and 2) the depth of excavation behind the wall that requires no support (zero total lateral stress).
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Only solve 1.2
Transcribed Image Text:A 6-meter-high retaining wall is designed to support a soil with the following properties:
- Unit weight (γ): 17 kN/m³
- Soil friction angle (φ): 24°
- Cohesion (c'): 12 kN/m²
Tasks:
1. Determine the depth of the tensile crack behind the wall.
2. Determine the depth of excavation behind the wall that requires no support (zero total lateral stress).
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Can you please explain the second problem? theorical wise and why you did that
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