土先期固结压力问题的研究word论文.docx

ABSTRACT
The preconsolidation pressure is the maximum effective stress in the process of soil formation has endured in geological history. Soil preconsolidation pressure is an important index for determining the consolidation status. But on how to obtain preconsolidation pressure of the soil there are some limitations. In this paper, We analyzed the data of preconsolidation pressure. More in-depth understanding of the theory of soil preconsolidation pressure. Through consolidation tests,research the test results and relevant data of soil preconsolidation pressure. Discuss the Mathematical
Model method of how obtaining preconsolidation pressure. Based on Casagrande method, analysis and determine the fitting mathematical model of soil preconsolidation pressure curve. Then the value pared with the preconsolidation pressure test. The influence factors of the preconsolidation pressure is analyzed, at the same time, in-situ testing method for determining preconsolidation pressure makes a preliminary theoretical exploration. Mainly include:
(1)Through to the narrative summary that studies of the structure and the
preconsolidation pressure, summarize the structure and Preeonsolidation Pressure exerts a tremendous influence to settlement calculation of area in soil. Discuss the major issues about the study of structural and soil preconsolidation pressure, analysis of the formation mechanism of the preconsolidation pressure, And do the theoretical analysis on Influencing Factors of the preconsolidation pressure.
(2)In this paper, widely used in the international on the calculation method of
preconsolidation pressure are analyzed, In view of the limitations of the traditional methods,The mathematical model of determining preconsolidation pressure are studied in the paper. Select the appropriate mathematical model and calculated with pute plier by Matlab, and pare the valueanalysis and preconsolidation pressure test.
(3)Expounds the significance of the preconsolidation p