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Finite Element Simulation And Engineering Application Of Reinforcement Structrure In Soft Base

Posted on:2008-02-16Degree:MasterType:Thesis
Country:ChinaCandidate:F E WangFull Text:PDF
GTID:2132360212973890Subject:Structure engineering
Abstract/Summary:PDF Full Text Request
This paper introduced two kinds process the soft earth base the commonly used method, piles and reinforced earth the technology. In uses the pile stabilized soft earth base, mostly uses the group piles. Early , the group pile foundation vertical supporting capacity is according to the single pile supporting capacity simple superimposition. But under the vertical load function , it's remarkable different between group piles foundation and single pile in piles supporting capacity display and the subsidence character .This paper establishes the finite element model of pile Groups-Soil-Pile Cap Interaction, usesing the beam unit to replace the conrete pile and Interpolation Method is used to densification mesh of pile peripheral earth and a example are presented in the paper to tested the new method is accuracal, feasible, the new method enhanced the computation speed. Calculated the model of different pile long, pile diameter, pile number situation single pile and group piles vertical bearing capacity, discussed the pile foundation bearing capacity and the vertical displacement direct relations, and obtained some significance conclusions to the pile foundation design and the research.About reinforcement earth , divideing independently the soil elements and the reinforcement elements, not considering the node overlaps, these node of soil element displacement is the basic variable. Establishment the new nodes which is same position with the reinforcement node and these nodes displacement are determined by contains corresponding the soil body node displacement interpolation .And applies this method to Shen Zhen He river B section treatment reinforced earth-retaining wall project .The research results played a positive effect, to extent to the reinforcement structure further promoted application and the project practice level enhancement .It provided a complete methods to simulate pile groups-soil...
Keywords/Search Tags:Pile foundation, Reinforcement earth, Effect coefficient of pile group, Contact element, Duncan-Chang model, Beam element, Soil body interpolation reinforcement element
PDF Full Text Request
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