|
In order to consider the influence of sedimentation and stress history on the settlement calculation and compression modulus, a formula for calculating the compression modulus and settlement of soil was derived based on the unified compression curve of the single logarithm model, and the applicability of the prediction formula was discussed by comparing the existing field monitoring data. Finally, a case study was conducted to explore the evolution of soil compression modulus and settlement under the conditions of sedimentation and stress history. The results show that: (1) For compression modulus, when the additional stress is small, the compression modulus depends on the early consolidation stress. With the increase of additional stress, the influence of the initial consolidation stress becomes less and less, making the compression modulus more and more affected by the additional stress. (2) With the increase of soil depth, the difference of sedimentation on settlement results becomes more obvious. Therefore, when calculating the settlement of deep soil layer, not only the influence of gravity stress, but also the influence of sedimentation on effective weight should be considered.
|
