Abstract:By using the Boussinesq solution, the formulas for calculating the vertical additional stress of the foundation center under the action of conical and truncated cone shaped load were given. The attenuation of vertical additional stress with depth was found much greater than that under other types of loads. By using the elastic finite element method, the vertical additional stress coefficient diagram of any position of foundation under the action of conical load was given, and the calculation problems of vertical additional stress and ground settlement at any position under the conical and truncated cone shaped load were solved. A case study was carried out to testify the necessity of using the proposed method to give the axisymmetric additional stress solution. Furthermore, a calculation example was given to analyze the mutual influence rule between the vertical additional stress of the foundation and the surface settlement under the action of two conical mountains.
