compressibility and consolidation of soil pdf

Compressibility And Consolidation Of Soil Pdf

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The compression index and recompression index are one of the important compressibility parameters to determine the settlement calculation for fine-grained soil layers. These parameters can be determined by carrying out laboratory oedometer test on undisturbed samples; however, the test is quite time-consuming and expensive. Therefore, many empirical formulas based on regression analysis have been presented to estimate the compressibility parameters using soil index properties. In this paper, an artificial neural network ANN model is suggested for prediction of compressibility parameters from basic soil properties. For this purpose, the input parameters are selected as the natural water content, initial void ratio, liquid limit and plasticity index.

Soil consolidation

Chapter 5 Compressibility And Consolidation. Remember: Consolidation settlement is a function of effective stress and not the function of total stress. For cohesionless soil. Login New User. Sign Up. Forgot Password?

Metrics details. The compression index and recompression index are one of the important compressibility parameters to determine the settlement calculation for fine-grained soil layers. These parameters can be determined by carrying out laboratory oedometer test on undisturbed samples; however, the test is quite time-consuming and expensive. Therefore, many empirical formulas based on regression analysis have been presented to estimate the compressibility parameters using soil index properties. In this paper, an artificial neural network ANN model is suggested for prediction of compressibility parameters from basic soil properties. For this purpose, the input parameters are selected as the natural water content, initial void ratio, liquid limit and plasticity index.

Soil Mechanics pp Cite as. Unable to display preview. Download preview PDF. Skip to main content. This service is more advanced with JavaScript available. Advertisement Hide. Compressibility and Consolidation.

Compressibility And Consolidation Civil Engineering (CE) Notes | EduRev

Formation of varved clays is characterized by specific compressibility and consolidation features, which are difficult to assess. The construction of an expressway through the area of varved, glacilimnic sediments Vistula glacial period required careful analysis of the soil reaction to the increasing load caused by growing embankment. The settlement analyses conducted in relation to the schedule of load increase during construction allowed to verify the deformability assessment of the compressible clays. In order to quantify the compressibility and consolidation parameters of clays, an iterative calculation model was created. The observed delayed reaction of the soil to applied load allowed to assess the nature of consolidation.


Soil Mechanics – Third Year Civil Eng. Mechanism of Consolidation Process. For Clays: low permeability ~ valve is partially open, water gets out.


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Soil consolidation refers to the mechanical process by which soil changes volume gradually in response to a change in pressure. This happens because soil is a two-phase material, comprising soil grains and pore fluid, usually groundwater. When soil saturated with water is subjected to an increase in pressure, the high volumetric stiffness of water compared to the soil matrix means that the water initially absorbs all the change in pressure without changing volume, creating excess pore water pressure.

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5 Comments

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  2. Talbot A.

    Soil is a multi-phase medium made up of mineral grains which enclose voids that may be filled with gas, liquid or a combination of both.

    02.01.2021 at 04:16 Reply
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  5. Amelio C.

    - Compressibility: Volume changes in a soil when subjected to pressure –giving. AMOUNT of settlement. - Consolidation: Rate of volume change with time –giving​.

    04.01.2021 at 11:34 Reply

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