Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Back analysis method of homogeneous slope at critical state
Abstract The angles of homogeneous slopes θ are divided into three partitions (θ ≤ 40°, 40° < θ < 50°, and 50° ≤ θ) to deduce the calculation formula for the maximum depth D of critical slip surface below the slope surface. The formula proves that the slip surface location in soil homogeneous slopes is related only to the ratio of c (cohesion) and tanϕ (angle of shearing resistance) for the known slope geometry and unit weight. In this paper, extensive calculations are carried out to draw relation charts between dimensionless shear strength parameters λ cϕ = c/(γH 0tanϕ) and the ratio D/H 0 (where D is the maximum depth of the critical slip surface, H 0 is the slope heights), as well as the relation between λ cϕ and angle of shearing resistance ϕ. Results show that D/H 0 and ϕ are only determined by λ cϕ , and do not change with different slope heights. Through the measurement of the maximum depth of the slope slip surface, the shear strength parameters of homogeneous slopes at the critical state can be obtained based on back analysis relation charts. The correctness of this method is verified by comparing the numerical calculation results.
Back analysis method of homogeneous slope at critical state
Abstract The angles of homogeneous slopes θ are divided into three partitions (θ ≤ 40°, 40° < θ < 50°, and 50° ≤ θ) to deduce the calculation formula for the maximum depth D of critical slip surface below the slope surface. The formula proves that the slip surface location in soil homogeneous slopes is related only to the ratio of c (cohesion) and tanϕ (angle of shearing resistance) for the known slope geometry and unit weight. In this paper, extensive calculations are carried out to draw relation charts between dimensionless shear strength parameters λ cϕ = c/(γH 0tanϕ) and the ratio D/H 0 (where D is the maximum depth of the critical slip surface, H 0 is the slope heights), as well as the relation between λ cϕ and angle of shearing resistance ϕ. Results show that D/H 0 and ϕ are only determined by λ cϕ , and do not change with different slope heights. Through the measurement of the maximum depth of the slope slip surface, the shear strength parameters of homogeneous slopes at the critical state can be obtained based on back analysis relation charts. The correctness of this method is verified by comparing the numerical calculation results.
Back analysis method of homogeneous slope at critical state
Lin, Hang (Autor:in) / Chen, Jingyu (Autor:in)
KSCE Journal of Civil Engineering ; 21 ; 670-675
24.06.2016
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Back analysis method of homogeneous slope at critical state
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