Calculation of Active-earth Pressure on the Retaining wall.
Case:Coulomb theory(Muller-Breslau theory),Dead Load,Monotonous embankment surface,No cohesion.

Keyword

Coulomb theory,Muller-Breslau theory,Internal friction angle of soil,φ,Active-earth Pressure coefficient,Retaining wall,friction angle between soil and wall,Total earth thrust,Monotonous embankment surface,No cohesion.

Reference

・『道路土工擁壁工指針平成11年3月』(社団法人日本道路協会)
・『擁壁の設計と施工計画』(村上有誠)

Remarks

・θ(°)+δ(°) should be smaller than 90°.
・α(°) should be smaller than φ(°).
・δ(°) should be smaller than φ(°).
・KA=(cos(φ-θ))^2/((cosθ)^2*cos(θ+δ)*(1+(sin(φ+δ)*sin(φ-α)/cos(θ+δ)/cos(θ-α))^0.5)^2).
・φ(°):Internal friction angle of soil.
・δ(°):Friction angle between soil and wall.

History

・2014/08/19:layout change.
・2009/05/09:Moved from www.am-consulting.co.jp to here.