Abstract:

On basis of Mindlin stress solution, the author divides the diaphragm wall into small units and deduces the calculation equation of the additional stress in the soil under the action of frication on the side of the diaphragm wall. As for diaphragm walls with large length/width ratio, the author treats the load at the bottom of the diaphragm walls as plan strain and deduces the calculation equation of the additional stress in the soil under the action of load at the bottom of the diaphragm walls. Based on the gained additional stress, the settlement of the diaphragm walls is calculated by the layerwise summation method.