Limited filling retaining wall earth pressure distribution calculation method

Abstract

The invention provides a limited filling retaining wall earth pressure distribution calculation method. According to the method, the earth pressure distribution is not artificially assumed to be linear, and the method is an expansion and supplement to the Coulomb theory; a rigid limited filling retaining wall is set as an object, the slip surface of the wall is still assumed to be a plane on the basis of the Coulomb theory and a wedge element method, and the action points and action distribution forms and degree of the active earth pressure of the slip surface in general conditions are calculated. The limited filling retaining wall earth pressure distribution calculation method can accurately calculate the resultant force and positions of reasonable action points of the earth pressure behind the retaining wall and grasp the nonlinear distribution of the earth pressure along the back of the wall for carrying out scientific and reasonable design and construction, thereby having important practical significance on scientific and reasonable guidance for the design of the retaining wall.

Description

technical field [0001] The invention relates to a calculation method for the nonlinear distribution of earth pressure of a limited fill retaining wall, which belongs to the technical field of geotechnical engineering and is suitable for filling rigid retaining walls within a limited range in departments such as transportation, water conservancy, municipal administration, and construction. Design Calculation. Background technique [0002] Calculation of earth pressure on retaining wall has always been a matter of great concern to engineering and academic circles. From the present point of view, the earth pressure calculation methods mainly include the Coulomb earth pressure theory and the Rankine earth pressure theory based on the limit equilibrium theory; the coordinated deformation calculation method considering the relationship between the earth pressure and the wall deformation and the finite element method considering the actual stress-strain relationship of the soil. L...

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Problems solved by technology

However, the calculation model and calculation process of this type of method are complex, and the calculation accuracy depends on the selection of soil property parameters, which are often difficult to determine; in addition, limit state design methods are widely used in practical engineering applications, so based on Rankine's earth pressure theory and Coulomb's earth pressure theory of limit equilibrium theory are still the most widely used methods in practical engineering

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