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Settlement Of Deformable-Pile Composite Ground Under Flexible Foundation With Probability Analysis

Posted on:2007-07-25Degree:MasterType:Thesis
Country:ChinaCandidate:D XuFull Text:PDF
GTID:2132360182485042Subject:Municipal engineering
Abstract/Summary:PDF Full Text Request
Flexible pile such as cement-mixed pile is an important measurement in treating composite ground and it's being used abroad in recent years in treating the soft-ground under express highway, especially the section of the highway near the bridge. The deformation rule of deformable-pile composite ground under flexible foundation such as road bank is different from that under rigid foundation. It belongs to free strain and it's study of the computing method to the deformation is being focused on and developed recently.This paper summarizes the study's present status of the settlement of deformable-pile composite ground. This paper details the existing computing methods and obtains the essence. This paper also puts forward a new displacement pattern on the condition of free strain, and does the reliability analysis on the base of this pattern. All the work done is as follows:1. Based on the existing patterns of the more rational unit cell model so-far for the composite ground, an advanced displacement pattern is put forward for more extensive applicability. At the same time, property analysis is done for the unit cell model.2. According to the advanced displacement pattern, probability analysis with Monte-Carlo and First order quadric moment method and sensitivity analysis on the variable parameter are done.3. Combined with the project, the advanced displacement pattern to the unit cell model is verified. The analysis result indicates that the displacement pattern is feasible.
Keywords/Search Tags:composite ground, deformable foundation, flexible pile, settlement, reliability
PDF Full Text Request
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