Study on the Computation Methods for Coefficient of Earth Pressure in Foundation Pit Bracing

In order to discuss the applicability of different methods to four sorts of clay, the writer uses three methods to calculate the coefficient and intensity of earth pressure. They include the method considers angle of internal friction can be suitable for over consolidated soil, normally consolidated soil and under consolidated soil; but cun't not be applied to the collapsible loess very well. The method considers cohesion is not applicable to all four sorts of clay. Although the method of angle of equilalent internal friction is not applicable to the four sorts of soil, bat it is easy for calculate, so this paper gives corresponding advice to select parameters.