Experimental Study on the Dynamic Characteristic of Soft Soil under Cyclic Loads

Liu, Jiashun; Zhang, Xiangdong; Zhang, Hu-wei

doi:10.1061/jhtrcq.0000407

Cited by 5 publications

(5 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The mild clay samples are obtained from ±0~-15m below the ground of some engineering. The fine sand with mild clay samples are obtained from -15~-20m below the ground of the engineering [1][2][3]. The Experimental Method.…”

Section: The Experimental Methods and Processesmentioning

confidence: 99%

Study on the Physics and Mechanical Properties of Freeze-Thaw Soil and Undisturbed Soil

Zhao

Dai

2012

AMR

View full text Add to dashboard Cite

The parameter of the undisturbed soil cannot be used simply in the engineering for the characteristics varied considerably. So the physics and mechanical characteristics of freeze-thaw soil are very important in the freezing method engineering. The physics and mechanical properties of freeze-thaw soil and undisturbed soil are compared by the experiment. And the data of test are shown that after the samples are frozen and thawed, density , dry density decrease and plastic limit decrease, void ratio increase a little, other physicals are similar. Permeability of mild clay greatly increased. Compressibility of mild clay decrease, but compressibility of fine sand increase. This can be used reference to model test, numerical analysis and project designing.

show abstract

Section: The Experimental Methods and Processesmentioning

confidence: 99%

Study on the Physics and Mechanical Properties of Freeze-Thaw Soil and Undisturbed Soil

Zhao

Dai

2012

AMR

View full text Add to dashboard Cite

show abstract

“…Illite and illite -montmorillonite minerals are the main clay components. The soil has density ρ = 1.82 g/cm 2 , specific gravity Gs = 2.75, water content…”

Section: Soil Samplesmentioning

confidence: 99%

“…For marine soft soil, AGF is economical, convenient, eco-friendly, and time-consuming. However, because the freeze-thaw cycle destroys the internal structure of the soil skeleton, weakening its structure and reducing its dynamic characteristics [2], tunnels using AGF settle much more than others do [3]. The freezing-thawing action is thus a crucial part of evaluating structural damage to tunnels [3].…”

Section: Introductionmentioning

confidence: 99%

Pore Size Changes in Marine Soft Soil under Various Freezing Conditions

Kong

Xia

et al. 2020

JMSE

View full text Add to dashboard Cite

Artificial freezing methods can help highlight the mechanical properties of marine clay. The construction of cross passages in metro tunnels employs the freezing method. Freeze–thaw circulation, which is part of the process, affects the engineering properties of clay and produces differential settling. This paper describes the percentages of specific diameters of frozen–thawed soil under different freezing temperatures, measured with the help of nuclear magnetic resonance (NMR). In response to the experimental results, a weakening effect of freezing temperature and speed on soft soil is proposed. All sizes of undisturbed soil pores tend to increase under various freezing temperatures. Owing to differences in free water content, the water in medium pores freezes quicker than that in tiny pores. The quicker the freezing, the greater the resulting void ratio. Finally, potential reasons for changes in pore size under different freezing conditions are explained from a microcosmic perspective.

show abstract

“…El módulo dinámico equivalente de Young (E eq ) es uno de los parámetros más importantes para calcular y analizar la dinámica del suelo. También es esencial para realizar análisis de respuesta sísmica y diseño de cimentaciones [3].…”

Section: Módulo Dinámico Equivalente De Young (E Eq )unclassified

Influencia de la consolidación secundaria en la rigidez dinámica de un suelo compresible (arcillas)

García-Quirós

Ossa

Flores-Guzmán

et al. 2020

View full text Add to dashboard Cite

Con el objetivo de evaluar la influencia de la consolidación secundaria en la rigidez dinámica de un suelo compresible, se llevaron a cabo pruebas triaxiales dinámicas consolidadas no drenadas (CU), en probetas de suelo recuperadas en el antiguo lago de Texcoco, México, las cuales corresponden a un suelo arcilloso. Las pruebas consistieron en dos etapas. Primero, las probetas se sometieron a un esfuerzo efectivo (σ’) definido; una vez concluida la consolidación primaria, etapa en la cual se disipa la presión de poro, se realizaron mediciones del módulo dinámico equivalente de Young (Eeq) y módulo resiliente (Mr) a distintos niveles de esfuerzo desviador, aplicando un pulso periódico senoidal y haversiano, respectivamente. Una vez determinados dichos módulos, se continuó consolidando el material con el mismo nivel de σ’, para así establecer la influencia del tiempo de consolidación en las magnitudes de estos. Por tanto, se realizaron dos mediciones adicionales a cada 24 horas, con lo cual se obtiene la variación de los módulos a lo largo del proceso de consolidación secundaria. El procedimiento anterior se realizó a distintos niveles de esfuerzo efectivo o de consolidación, incluyendo etapas de carga y descarga de la curva de compresibilidad.

show abstract

Experimental Study on the Dynamic Characteristic of Soft Soil under Cyclic Loads

Cited by 5 publications

References 3 publications

Study on the Physics and Mechanical Properties of Freeze-Thaw Soil and Undisturbed Soil

Study on the Physics and Mechanical Properties of Freeze-Thaw Soil and Undisturbed Soil

Pore Size Changes in Marine Soft Soil under Various Freezing Conditions

Influencia de la consolidación secundaria en la rigidez dinámica de un suelo compresible (arcillas)

Contact Info

Product

Resources

About