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Surcharge Preloading Method And Treatment Of Reclaimed Land Building Deep Soft Soil Foundation Reinforcement Effect And Settlement Calculation Study

Posted on:2015-10-17Degree:MasterType:Thesis
Country:ChinaCandidate:Y M CaiFull Text:PDF
GTID:2272330467488496Subject:Geotechnical engineering
Abstract/Summary:PDF Full Text Request
In recent years, with the rapid development of China’s economy, land resources are scarcerand scarcer. in order to ease the contradiction, buildings are had to build on deep soft soilengineering construction on land even the sea land. If directly on the soft soil land for construction,often can’t meet the bearing capacity of foundation, foundation stability and settlement offoundation. Building engineering, therefore, in such a soft soil ground before, often need toreinforce the underground soft soil, and surcharge preloading method is the selection of foundationtreatmentmethod, butitstheoryresearchremainsto beperfect.By overload preloading reinforcement mechanism of the deep soft soil lack of unifiedunderstanding, some theoretical research is not yet mature, factors affecting consolidationsettlement is more, so far the surcharge preloading method and treatment of reclaimed landbuilding deep soft soil foundation reinforcement effect and settlement calculation is very difficultto make an accurate conclusion. Therefore, about the surcharge preloading method and treatmentof reclaimed land building deep soft soil foundation in coastal areas of subject research in actualengineering application has certain scientific and reference value, at the same time can providereferenceforsimilarprojects.Combining with huizhou daya bay petrochemical industrial zone D1plot of soft foundationtreatment engineering, the in-situ monitoring experiment, indoor test and theoretical analysis,experiment research method of combining the surcharge preloading method and treatment ofreclaimed land building deep soft soil foundation reinforcement effect and settlement calculationarestudied.Through continuous dynamic monitoring in huizhou daya bay petrochemical industrial zoneD1plot in the process of soft foundation treatment the surface settlement, layered settlement, porewater pressure, horizontal displacement of deep soil. The impact factors and change rules and itseffect on the reinforcement effect. are analysis And through the indoor experiment and field vaneshear test, loading plate test analysis of surcharge preloading method and treatment of thereclaimed land building deep soft soil foundation reinforcement effect, the practice proves that thestrengtheningeffectoftheprocessedto meet thedesign requirements.The analysis of loading ways and research the loading, loading rate and the foundation soilstress history for the calculation of consolidation settlement of soft soil foundation. Combining the engineering example, the deep soft soil consolidation settlement calculation discusses the analysis.The results show that nonlinear multidimensional consolidation settlement calculation formula canbe used for the reclaimed land building deep soft soil foundation settlement calculation andforecastthefinalconsolidationsettlement ofsoft soilfoundation.
Keywords/Search Tags:surcharge preloading, Reinforcement effect, Settlement calculation, Fieldmonitoring, Changerule
PDF Full Text Request
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