Effect of Particle Size, Moisture Content and Density on the Hyperbolic Model Parameters for Non-cohesive Soil

Dhadse, Gaurav D.; Ramtekkar, Gangadhar; Bhatt, Govardhan

doi:10.5829/ije.2022.35.09c.04

Cited by 2 publications

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“…It is also reported that the results for settlement and horizontal displacement considering thin layer interface shows very good agreement with the experimental result. Experiment Agrawal [51] With zero thickness Viladkar et al [33] Without Joint Viladkar et al [33] Present Study Thin layer Experiment Agrawal [51] With zero thickness Zedan [52] Present Study Thin layer Experiment Agrawal [51] With zero thickness Zedan [52] Present Study Thin layer Experiment Agrawal [51] With zero thickness Zedan [52] Present Study Thin layer It is also noted that the results considering thin layer interface are superior to zero thickness interface. It may be because of consideration of normal stiffness for thin layer interface as 'ET/t' and not a constant value.…”

Section: Resultsmentioning

confidence: 99%

“…If the adjacent mesh size fluctuates, the thickness value is inconsistent and altering regardless of soil type or structure surface roughness. According to the literature, the interface thickness should be five times the average soil grain size [6,11,13,[30][31][32][33]. Whereas Fang H. and Wang W. [34], Saberi et al [35] and Gennaro et al [36] proposed the interface thickness should be 5 to 10 times the average particle size.…”

Section: Introductionmentioning

confidence: 99%

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Thin layer interface: An alternative modeling consideration in soil-structure interaction system

Dhadse,

Ramtekkar,

Bhatt

2024

Res. Eng. Struct. Mat.

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The numerical modeling of a soil-structure interaction (SSI) system subjected to lateral loads depends mainly upon the interface behavior. The soil stiffness in relation to the structure is quite low, and the structure generally has a rough surface in contact with the soil. As a result of the slipping and rolling of soil grains caused by friction, a thin layer of shear zone forms in soil with the application of lateral loads. A thin layer interface is represented by the shear zone. As a result, the decision on the thickness requirement is critical for appropriate modeling of the thin layer interface, which is rarely documented by researchers. Furthermore, it has been reviewed in the literature that modeling the SSI system with a thin layer interface more accurately replicates the physical system than modeling it with a zero-thickness interface. The methodology for effective usage (in terms of proper interface thickness) of the thin-layer interface in SSI system using finite element (FE) modeling is proposed in this work. The thickness of the interface has also been determined via numerical modeling of a large direct shear test (DST).

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