挡土墙后粘性填土被动土压力计算.pdf

92 Vol.9 No.2 20076 J.of Institute of Disaster-Prevention Science and Technology Jun. 2007 065201 Computation of Passive Earth Pressure of Cohesive Backfill on Retaining Walls Feng Zhen Li Juwen Wang Na (Institute of Disaster-Prevention Science and Technology, Sanhe, Hebei 101601) Abstract: According to the Coulombs earth pressure theory, from the condition of the static equilibrium of the force when the slide wedge is in limit equilibrium, a formula is derived for the calculation of passive earth pressure of cohesive or non-cohesive backfill soils. This formula could be used in the calculation of earth pressure with superimposed load uniformly distributed on any location of ground surface behind the retaining wall. Some suggestions are proposed to the calculation of earth pressure in gravity retaining-wall designs. Key words: Coulomb s theory; retaining wall; passive earth pressure; uniformly distributed load [1,2] x x y [3] d q 1 A x C [4] F W q d y E δ T ρ [4] θ φ N