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Mechanical Properties and Consolidation Characteristics of Dredged Sludge with High Water Contents

Author: ChenZuoHui
Tutor: SunShuLin
School: Hohai University
Course: Geological Engineering
Keywords: Dredged Physical and mechanical properties The law of consolidation settlement Numerical Analysis Nonlinear Finite Element
CLC: TU449
Type: Master's thesis
Year: 2006
Downloads: 245
Quote: 0
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Abstract


With the society as a whole is increasing emphasis on environmental quality, environmental management and protection measures were introduced, China in the remediation of the contaminated inland lakes rivers and coastal port channel generated a lot of contaminated dredged sediment how to properly dispose of the contaminated dredged sediment, prevent secondary pollution caused to the environment, engineering and academic issues of common concern. Polluted Dredged of research physical mechanics and consolidation of settlement characteristics, decided to use ways and means of dealing with contaminated dredged sediment prerequisite for further study of the various treatment and disposal methods reasonable premise. Therefore, this paper the Qinhuai River trigeminal reaches contaminated dredged sediment main study of the following aspects: 1, conventional laboratory soil test for the Qinhuai River contaminated dredged sediment sample taken, the Qinhuai River contaminated sludge dredged from conventional physical and mechanical parameters and physico-mechanical properties were determined, the test results reveal The Qinhuai River contaminated dredged sediment with a high moisture content, high compression, high pollutant content, low-intensity, low-density and low permeability the physical, chemical and mechanical properties. 2, according to the laboratory soil test results, test data measured by the physical and mechanical characteristics of the contaminated dredged sediment on the Qinhuai River, the variation of the physical and mechanical characteristics of indicators, the relationship among the indexes were analyzed. Compression test results, especially for the consolidation analysis to study the characteristics and laws of contaminated dredged sediment consolidation settlement and consolidation. 3, according to previous studies of the three classic consolidation theory, analysis, research soil consolidation mechanism and the Qinhuai River Polluted Dredged consolidation settlement rules, based on the characteristics, evaluation, research for as this study object similar to the nature of the soil consolidation theory should be used to better, more accurate description of the actual soil consolidation Settlement Laws. 4, on the basis of previous studies, summarized and analyzed to study the international commonly used in several isolated yards layout structure, the advantages and disadvantages of the applicable conditions and more popular in the international ADINA finite element analysis software two models isolation yards of contaminated dredged sediment reclamation, consolidation settlement process simulation, the predicted consolidation settlement amount, at the same time the consolidation process of contaminated dredged sediment pore water pressure, effective stress physical quantities such changes.

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CLC: > Industrial Technology > Building Science > Soil mechanics,foundation engineering > Various types of soil and foundation > Other
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