Determination of Viscoelastic Properties of Soil and Prediction of Static and Dynamic Response

Swain, Abhilas; Ghosh, Priyanka

doi:10.1061/(asce)gm.1943-5622.0001456

Cited by 17 publications

(4 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dynamic constitutive relationship of soil, encapsulating the stress–strain relationship, serves as a vital reference for analyzing soil's dynamic instability processes and for calculating its finite element dynamic properties 32 . Under dynamic loading conditions, this relationship often manifests nonlinear and hysteretic behaviors.…”

Section: Results and Analysismentioning

confidence: 99%

Dynamic characteristics and reinforcement mechanism of silty soil improved by regenerated fiber polymer

Liu,

Zhao,

Liu

et al. 2023

Sci Rep

View full text Add to dashboard Cite

The development of economical and efficient roadbed silt reinforcement technology not only guides the proficient utilization of silt resources but also fosters the green development of geotechnical engineering construction. Ensuring the robust dynamic stability of the roadbed is pivotal for the safe operation of vehicular traffic. In this context, employing recycled polyester fibers and inorganic curing agents, this paper leverages dynamic triaxial testing and scanning electron microscopy (SEM) methods to scrutinize the dynamic characteristics and microscopic mechanisms of recycled fiber polymer modified roadbed silt. The findings indicate that: (1) with a fiber content of 0.2%, the fiber-modified soil sample exhibits minimal damage, maximal dynamic strength and dynamic elastic modulus, and optimum resilience to dynamic loads; (2) akin to fiber-reinforced sand, an elevation in confining pressure can induce the creation of a quasi-cohesive force in fiber-reinforced soil, equivalently enhancing the confining pressure and thereby amplifying its strength; and (3) the surfaces of microparticles in the enhanced soil structure are enveloped with cementitious substances, while smaller soil particles coalesce to form aggregates that fill inter-particle pores, cultivating a denser and more stable improved soil structure and augmenting the dynamic characteristics of the improvement investment.

show abstract

Section: Results and Analysismentioning

confidence: 99%

Dynamic characteristics and reinforcement mechanism of silty soil improved by regenerated fiber polymer

Liu,

Zhao,

Liu

et al. 2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The oscillator was clamped to the foundation using a nut and bolt arrangement. The soil properties at the field location were adopted from Swain and Ghosh [20] and reported in Table 4. The soil can be characterized as low plasticity clay (CL) as per the Unified soil classification system (USCS) [21].…”

Section: Instrumentationmentioning

confidence: 99%

“…13a. The modulus of elasticity of the square foundation was taken as 25 GPa, whereas the density and the Poisson's ratio were taken as 2500 kg/m 3 and 0.20, respectively [20]. A dynamic pressure of 3.55 kN/m 2 was applied over the area replicating the square foundation to evaluate the response without foundation, as shown in Fig.…”

Section: T R =mentioning

confidence: 99%

Impact of Footing Shape on Dynamic Properties and Vibration Transmission Characteristics of Machine Foundations

Surapreddi

Ghosh

2021

Int. J. of Geosynth. and Ground Eng.

Self Cite

View full text Add to dashboard Cite

Due to immense infrastructure development activities, a study on the vibration generated by heavy machinery, construction activities, highway and railway traffic movements has gained importance in recent years. The present study investigates the influence of shape on the system and vibration transmission characteristics of block machine foundations under dynamic loading. A series of block vibration tests were conducted on model foundations laid on the local soil available at IIT Kanpur, India, to evaluate the system characteristics of machine foundations. The vibration transmission characteristics of the foundations were investigated using a 3D finite element (FE) analysis. Three different shapes of foundation (circular, square, and rectangular) were considered for the intended purpose. The effect of the loading intensity on various parameters such as natural frequency, soil stiffness, and damping coefficient was investigated. In addition, the shape effect of foundations on the dynamic shear strain, shear modulus, and the elastic uniform compression coefficient was suitably assessed. The efficiency of a wave barrier in mitigating the machine-induced vibration was investigated. It can be observed that the shape of foundations significantly influences the system characteristics. The circular and square foundations perform better than the rectangular foundation at higher loads. In contrast, the vibration transmission characteristics of block foundations are unaffected by the shape of the foundations. The transmission ratio decreases with an increase in the frequency at the pick-up points located away from the vibration source. It can be noted that the absolute damping varies significantly in the presence of the wave barrier at higher frequencies.

show abstract

“…Most recently, [28][29][30][31] investigated fractional derivative models for various soils under different states. [32] employs a general and direct method to determine the time-dependent stress-strain behavior of soil using a Prony series method based on test of soil. The finite-element models are developed to simulate and validate the timedependent constitutive relationship of the soil under both static and dynamic loading conditions.…”

Section: Introductionmentioning

confidence: 99%

Identification of Viscoelastic Property of Pile-Soil Interactions with Fractional Derivative Model

Zatar

Xiao

Chen

et al. 2020

Journal of Low Frequency Noise, Vibration and Active Control

View full text Add to dashboard Cite

The viscoelastic property of pile-soil interactions is modeled by fractional derivative method and is used to characterize the structural dynamics of pile and rheological behavior of a thawing frozen soil. A study of the thawing frozen soil impacts on pile structure’s dynamic characteristic is carried out. The frequency spectrum analysis and empirical modal decomposition are used to identify the pile structure dynamic properties. The rocking mode vibration in which pile behaviors like rigid body supported by viscoelastic soil is extracted to capture the viscoelastic property of pile-soil interactions. The rocking mode exhibiting time-varying frequency features is modeled with fractional derivative model and the fractional derivative order is identified. This study proposes a quick and reliable method to identify the viscoelastic property of pile-soil interactions.

show abstract

Determination of Viscoelastic Properties of Soil and Prediction of Static and Dynamic Response

Cited by 17 publications

References 29 publications

Dynamic characteristics and reinforcement mechanism of silty soil improved by regenerated fiber polymer

Dynamic characteristics and reinforcement mechanism of silty soil improved by regenerated fiber polymer

Impact of Footing Shape on Dynamic Properties and Vibration Transmission Characteristics of Machine Foundations

Identification of Viscoelastic Property of Pile-Soil Interactions with Fractional Derivative Model

Contact Info

Product

Resources

About