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Experimental Study of Interaction between Cemented-Soil and Shaped Steel of Reinforced Cemented Soil Composite Support Structure

Author: ZhangHua
Tutor: ZhengGang
School: Tianjin University
Course: Structural Engineering
Keywords: reinforced cemented soil composite beam assembled stiffness failure mode
CLC: TU476.4
Type: Master's thesis
Year: 2006
Downloads: 133
Quote: 0
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Abstract


Reinforced cement-soil retaining wall structure is a fully new method of retaining structure in deep excavation. Its advantages are reliable technology support, high precision, fast and simple construction, low cost, common materials. This .retaining structure itself occupies small space and can not produce deserted soil and noise, also does no harm to environment. So it has spatial prospect in clay region. This thesis did systemic research to cement-soil and section steel composite material to find a reasonable structure type for reinforced cement-soil retaining wall, get the internal force calculation method, then construct the design theory for reinforced cement-soil retaining wall.First, considering the structure in practical project, the author designed the in-door test forwardly, analyzed the load and the deformation of the composite structure and stress changing of shaped steel. Moreover the load capacity, composite stiffness and the failure mode of composite structure were analyzed in detail. All these parts had been expatiated clearly and in detail.Secondly, the theoretical calculation model for the shear capacity of reinforced cement-soil beam was erected, and the theoretical calculation formulation for the shear capacity of reinforced cement-soil beam was deduced. The results calculated through adopting the formulation can accord with the experimental conclusions.Thirdly, the finite-element method was applied to analyze the composite structure ,the stress distribution state on the interface of cement-soil and shaped steel was given which can not be measured from experiments.Also the best nonlinear simulation model method of reinforced cement-soil structure was advised.

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CLC: > Industrial Technology > Building Science > Soil mechanics,foundation engineering > Foundation > The basis of the special form > Retaining wall
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