Lec 03 1 Earth pressure - KOCWcontents.kocw.net/KOCW/document/2014/hanyang/parkduhee1/... · 2016....
Transcript of Lec 03 1 Earth pressure - KOCWcontents.kocw.net/KOCW/document/2014/hanyang/parkduhee1/... · 2016....
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 1
LECTURE 03
Lateral earth pressure
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 2
At-rest, Active, and Passive pressure
Ratio of horizontal stress to vertical stress
Static: earth pressure at rest
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 3
At-rest, Active, and Passive pressure
Active pressure
Passive pressure
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 4
At-rest, Active, and Passive pressure
Active and passive pressures
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 5
At-rest earth pressure
Assuming frictionless wall
Jacky’s equation (1944)
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 6
Earth pressure at-rest for partially submerged soil
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 7
Rankine’s earth pressure
Plastic equilibrium in soil: every point in a soil mass in on the verge of failureRankine (1857) investigated stress conditions in soil at a state of plastic equilibriumRankine’s active pressure
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 8
Rankine’s active earth pressure
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 9
Rankine’s active earth pressure
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 10
Rankine’s active earth pressure
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 11
Rankine’s active earth pressure - Undrained
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 12
Rankine’s passive earth pressure
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 13
Rankine’s passive earth pressure
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 14
Lateral earth pressure distribution against retaining walls
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 15
Lateral earth pressure distribution against retaining walls
Partially submerged cohesionless soil supporting a surcharge: active
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 16
Lateral earth pressure distribution against retaining walls
Partially submerged cohesionless soil supporting a surcharge: passive
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 17
Lateral earth pressure distribution against retaining walls
Cohesive soil: active
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 18
Lateral earth pressure distribution against retaining walls
Cohesive soil – considering tensile crack After tensile crack develops, no contact exists up to depth of zo
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CIE3032 지반공학및실험 lecture 03 lateral earth pressure 19
Lateral earth pressure distribution against retaining walls
Cohesive soil – Undrained – passive