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One Dimensional Consolidataion Behaviour of Structured Soil and Negative Skin Friction

Author: ZhouZuo
Tutor: WangLiZhong
School: Zhejiang University
Course: Geotechnical Engineering
Keywords: Structural soil Nonlinear Consolidation Structural strength Disturbed soil in situ compression curve Layered soils Negative skin friction Coefficient of earth pressure at rest Poisson's ratio Bored Field test Centrifuge model test
CLC: TU447
Type: Master's thesis
Year: 2005
Downloads: 360
Quote: 0
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Abstract


Soil structure is an intrinsic factor to determine the engineering properties of the soft soil to carry out experimental and theoretical studies of the soft soil structural aspects are very important to shed further light on the soft ground consolidation settlement characteristics. China's southeast coastal areas are widely distributed marine ooze, pile foundation in the area is commonly used by the common method of dealing with big projects soft ground. When the soil around the pile settlement is greater than the deposition of the pile foundation pile produce negative skin friction and a significant drop-down load. From the point of view of soil structural explore the consolidation behavior of the structural soft ground disturbance, and is located in the Structured Soft Pile negative friction traits for engineering practice has important theoretical and engineering significance. First, the natural structural engineering properties of the soft soil and its Research, Wenzhou clay combined with thin-walled the soil samples consolidation compression test results, undisturbed soil consolidation and compression traits, pressurized rate their traits impact situ compression curve correction method. Second, the combination of structural soft soil compression characteristics of disturbed soil in situ compression curve correction method, one-dimensional consolidation analytic solution and the iterative method through the use of multi-layer foundation established to consider soil structural and soil weight nonlinear one-dimensional consolidation problem of semi-analytical methods, detailed calculations to obtain the structural soft soils hole pressure dissipation curve and degree of consolidation versus time reveals Structured Soft-dimensional solid The the junction settlement law and foundations disturbance of consolidation and final settlement. On this basis, considering the load, soil layering and self-esteem, and other factors into layers for Structural Soft consolidation control equation, Structured Soft LOADS layered one-dimensional solid Results traits. Finally, the Structured Soft the consolidation settlement Solving applied to Pile Structured Soft Solution negative skin friction, combined with the natural structural soft soil static earth pressure coefficient K the the 0 < / sub> and Poisson's ratio v characteristic research explored a the considered structural piles negative skin friction behaviors. The last trial NSF research, analyze the impact of different pile process of NSF.

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