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Modulus of subsoil reaction according to Chadeisson

Based on measurements on sheeting structures in different soils and computation of a shift of structure needed to mobilize the limit value of passive pressure R. Chadeisson derived expression for the determination of the modulus of subsoil reaction in the form:

where: EI - structure stiffness
γ - unit weight of soil
Kp - coefficient of passive pressure
K0 - coefficient of soil pressure at rest
c´ - effective cohesion
Ap - coefficient of influence of cohesion (1 - 15)

Literature:

Chadeisson, R. 1961 Parois continues moulées dans le sols. Proceedings of the 5th European Conf. on Soil Mechanics and Foundation Engineering,Vol. 2. Dunod, Paris, 563-568"




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