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Accueil du site → Master → Chine → 2007 → Study on the Structural Characteristic of Aeolian Soil in the East of Liaoning Province under Freezing and Thawing Function

Liaoning Technical University (2007)

Study on the Structural Characteristic of Aeolian Soil in the East of Liaoning Province under Freezing and Thawing Function

Yu Chong

Titre : Study on the Structural Characteristic of Aeolian Soil in the East of Liaoning Province under Freezing and Thawing Function

Auteur : Yu Chong

Grade : Master’s Theses 2007

Université : Liaoning Technical University

Résumé
For western Liaoning aeolian soil moisture content test , density test , soil particles specific gravity test , particle analysis, limits of determination of moisture content, consolidation test , compaction test , triaxial shear test , study aeolian soil the physical and mechanical properties , and then evaluate the initial structural soil . Consider the impact of frost heaving melting the Shen temperature , moisture , load , dry density , groundwater depth five main factors, 5 factors 9 level uniform design . Analyzed according to the test results the frost heave thaw rule as well as the variation of temperature , moisture , field , frost heaving force . Uniform design software and parameter optimization software , build soil forecasting model based on uniform design , and the use of the model for different temperature , moisture , and dry density , the groundwater level condition of the soil under the frost heave and thaw amount forecast . Observation of microscopic observation and control software freezing and thawing of the soil micro- structural , to reflect on the impact of macro- freezing and thawing of the soil structural soil strength and deformation characteristics of the freezing and thawing stage . Experiments and theoretical analysis , reflect the impact of freezing and thawing of the soil structural dynamic structural parameters . Based on damage theory , the introduction of the structural parameters as the damage than to establish the structural model of the freezing and thawing of the soil , and included in the structural parameters of temperature , moisture , stress the interaction between structural , so the model indirectly reflect the temperature field and moisture field and stress field coupling .

Mots clés : Structural Aeolian soil Uniform Design Freeze-thaw Constitutive model

Présentation (Dissertationtopic)

Page publiée le 22 octobre 2014, mise à jour le 8 novembre 2017