Shear Rate Effect on Strength Characteristics of Sandy Soils

Beren, Murat; Çobanoğlu, İbrahim; Çelik, Sefer Beran; Ündül, Ömer

doi:10.1007/s11204-020-09667-y

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…Soil–structure interaction features are among the keen research topics in geotechnical engineering, with significant achievements in investigating the mechanical features of soil–structure interfaces, such as studying the damage constitutive model of the soil–structure interface [ 1 ] and the effect elements on interfacial shear strength [ 2 , 3 ]. For the purposes of relevant studies, the structures were usually simplified into concrete slabs, steel plates, and other configurations [ 4 , 5 ], which were allocated different roughness surfaces before being subjected to a series of direct shear tests to explore the shear mechanical behavior and shear strength of these soil–structure interfaces [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Interface Morphology on the Shear Mechanical Properties of Sand–Concrete Interfaces

Li,

Meng,

Shen

2023

Materials

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The morphology of the contact surface between cast-in-place engineering structures and soil is generally random. Previous research focusing on the shear mechanical properties of soil–concrete interfaces has predominantly concentrated on the role of interface roughness by constructing regular concrete surface types, largely neglecting the potential impact of the roughness morphology (i.e., the morphology of the concrete surface). In this study, concrete blocks with the same interface roughness and different roughness morphologies were constructed based on the sand-cone method, including random rough surface, triangular groove surface, rectangular groove surface, trapezoid groove surface, and semicircular groove surface. A series of direct shear tests were conducted on the rough and smooth sand–concrete interfaces, as well as on natural sand. Through these tests, we examined the shear mechanical behavior and strength of the sand–concrete interfaces, and analyzed the underlying shear mechanisms. The results showed that: (i) the interface morphology had little effect on the variation in the shear stress–displacement curve of sand–concrete interfaces, and it had a significant influence on the shear strength of the interfaces; (ii) under the same normal stress, the shear strength of the sand–concrete interfaces with a random rough surface was the greatest, followed by the triangular groove surface, while the shear strength of the rectangular groove surface proved the lowest; (iii) the shear strength of the sand–concrete interfaces with the same roughness was affected by the size of the contact area between the concrete plane and the sand, that is, a larger contact area correlated with a decrease in shear strength. It can be concluded that the shear strength value of a sand–concrete surface with the triangular groove is the closest to the shear strength of a random rough interface. By gaining a deep understanding of the effects of different contact surface morphologies on shear strength and shear behavior, significant insights can be provided for optimizing engineering design and enhancing engineering performance.

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Section: Introductionmentioning

confidence: 99%

Effects of Interface Morphology on the Shear Mechanical Properties of Sand–Concrete Interfaces

Li,

Meng,

Shen

2023

Materials

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“…The sample is distorted at a regulated pace until failure occurs in this very simple test, which directly evaluates shear forces. The sample is made to yield via a shear plane at varied shearing rates by the testing apparatus [6]. In this study, a series of shear tests and triaxial tests on six distinct grain size distributions for clayey and silty sand soils were conducted.…”

Section: Introductionmentioning

confidence: 99%

Effect of particle size distribution on shear strength of soil

Eteraf,

Kovacs,

Mikita

et al. 2023

MATEC Web Conf.

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Soil grain size distribution has a significant impact on the mechanical properties of geotechnical materials. This study presents a laboratory investigation into the effects of fine content and grading factors on shear parameters. A series of shear tests and triaxial tests on sandy soils were performed for this aim. Finally, the outcomes of both strategies were compared and assessed. It was discovered that altering the grain size distribution results in changing the values of shearing parameters. Furthermore, the outcomes of different laboratory tests are not the same.

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Effect of the steady-state pH of kaolinite pore fluid on its microstructure and geotechnical properties

Shabanian

Ouria

2022

Arab J Geosci

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Shear Rate Effect on Strength Characteristics of Sandy Soils

Cited by 5 publications

References 4 publications

Effects of Interface Morphology on the Shear Mechanical Properties of Sand–Concrete Interfaces

Effects of Interface Morphology on the Shear Mechanical Properties of Sand–Concrete Interfaces

Effect of particle size distribution on shear strength of soil

Effect of the steady-state pH of kaolinite pore fluid on its microstructure and geotechnical properties

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