Abstract
| Language | English |
|---|---|
| Pages | 717-731 |
| Number of pages | 14 |
| Journal | Soils and foundations |
| Volume | 47 |
| Issue number | 4 |
| Publication status | Published - Aug 2007 |
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Keywords
- cohesive-frictional materials
- limit analysis
- optimization
- slope stability
- upper bound
- civil engineering
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On the optimal profile of a slope. / Utili, S.; Nova, R.
In: Soils and foundations, Vol. 47, No. 4, 08.2007, p. 717-731.Research output: Contribution to journal › Article
TY - JOUR
T1 - On the optimal profile of a slope
AU - Utili, S.
AU - Nova, R.
PY - 2007/8
Y1 - 2007/8
N2 - The problem of determining the best profile for a c, φ soil slope is tackled, with reference to rigid rotational failure mechanisms. By means of limit analysis, upper bound values of collapse load are determined. A new mathematical function is derived to compute the external work made by the weight of a double spiral shaped soil region sliding away. It is found that a log spiral front is associated with a larger safety factor than a planar one. The obtained results may also explain the log-spiral shape of perimeter walls of some typical Japanese castles.
AB - The problem of determining the best profile for a c, φ soil slope is tackled, with reference to rigid rotational failure mechanisms. By means of limit analysis, upper bound values of collapse load are determined. A new mathematical function is derived to compute the external work made by the weight of a double spiral shaped soil region sliding away. It is found that a log spiral front is associated with a larger safety factor than a planar one. The obtained results may also explain the log-spiral shape of perimeter walls of some typical Japanese castles.
KW - cohesive-frictional materials
KW - limit analysis
KW - optimization
KW - slope stability
KW - upper bound
KW - civil engineering
UR - http://www.jiban.or.jp/e/sf/contents/47-4/47-4-7.html
UR - http://dx.doi.org/10.2495/OP930291
M3 - Article
VL - 47
SP - 717
EP - 731
JO - Soils and foundations
T2 - Soils and foundations
JF - Soils and foundations
SN - 0038-0806
IS - 4
ER -