Triaxial Shear Tests on Pervious Gravelly Soils

Holtz, Wesley G.; Gibbs, H. J.

doi:10.1061/jsfeaq.0000004

Cited by 73 publications

(23 citation statements)

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“…Tanah lempung mempunyai tingkat kembang susut yang tinggi akibat pengaruh cuaca di Indonesia yaitu musim penghujan dan musim kemarau. maka diperlukan pengklasifikasian derajat pengembangan uji free swell dapat dilihat pada Tabel 2 (Holtz & Gibbs 1956).…”

Section: Bahan Dan Metodeunclassified

“…Free Swell Dari hasil pengujian, didapatkan nilai free swell pada Tabel 2, berdasarkan klasifikasi derajat pengembangan semua sampel di 3 (tiga) lokasi memiliki derajat pengembangannya sedang. Tanah yang memiliki derajat pengembangan sedang dapat digunakan sebagai stabilitas lereng (Holtz and Gibbs 1956). c. Pengujian Density Pengujian ini dilakukan untuk mengetahui perubahan nilai yang terjadi pada tanah asli dan tanah yang sudah di slurry, dan ternyata dari hasil pengujian dapat dilihat pada Tabel 4.…”

Section: Hasil Dan Pembahasan 31 Sifat Fisisunclassified

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Analysis Of The Residual Red Soil Shear Test With The Slurry Method In The Regency Of Semarang

Pardoyo

Wirawan

Huda

2021

TEKNIK

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Residual soil is found in most areas with mountainous, hilly, and undulating topography. This soil is marked by red or brown color. This study aims to determine the physical and mechanical properties of soil in the original soil and residual soil conditions using the slurry method. Research objects were taken from residual red soil of The East Ungaran District, Bergas District, and Bawen District. Analysis of the physical and mechanical properties test shows that the soil sample is a type of clay with kaolinite constituent minerals and moderate swelling ability, and direct shear testing from locations L1, L2, and L3 obtained residual peak shear angles using the slurry method of 29,249 °; 31,341 °; 31,964 ° and constant residual shear angle value of 8,082 °; 8,138 °; 7,294 °, the value of the original soil shear angle has a value of 32.82 °; 31.44 °; 31.98. The higher the value of the plasticity index, the higher the value of the free swell. The relationship between the plasticity index and the value of the residual peak shear angle shows that the results of the peak shear angle and the plasticity index are still within the scope of standard deviation. The value of the constant residual shear angle with the slurry method is much smaller than the test result graph.

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Section: Bahan Dan Metodeunclassified

Section: Hasil Dan Pembahasan 31 Sifat Fisisunclassified

Analysis Of The Residual Red Soil Shear Test With The Slurry Method In The Regency Of Semarang

Pardoyo

Wirawan

Huda

2021

TEKNIK

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“…Expansive soil is widely spread around the world and causes significant damages to earthen structures due to cyclic variation of drying and wetting. The state of practice for mitigating the hazard caused by expansive soils relies on application of qualitative indexes such as swelling potential and quantitative indexes such as swelling pressure or potential swell (e.g., Holtz and Gibbs 1956;Seed et al 1962;Chen 1975) to guide design and analysis (e.g., ). However, soil can have different swelling pressure or potential swell, depending on initial water content, initial void ratio, or confining conditions.…”

Section: Geotechnical Engineering Problemsmentioning

confidence: 99%

Unsaturated Soil Mechanics: Fundamental Challenges, Breakthroughs, and Opportunities

2020

J. Geotech. Geoenviron. Eng.

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“…The investigation of the particle size distribution effect on the mechanical behavior of granular materials has been the focus of researchers since the 1950s. The influence of the large particles on increasing the shear strength of granular materials was examined by Holtz and Gibbs [ 30 ] using triaxial tests on specimens of gravel and sand in various ratios. By studying clay samples containing different proportions of gravel, Shakoor and Cook [ 31 ] revealed that, with increasing sand content, the shear strength increases and the apparent adhesion decreases.…”

Section: Introductionmentioning

confidence: 99%

Effect of Particle Size Distributions and Shapes on the Failure Behavior of Dry Coke Aggregates

Sadeghi-Chahardeh

Mollaabbasi

Picard³

et al. 2021

Materials

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Carbon anodes participate in chemical reactions to reduce alumina in the Hall–Héroult process, of which coke aggregates make up a major part. The failure analysis of coke aggregates not only leads to a better understanding of the deformation mechanisms of anode paste under compressive loading but also can identify potential causes of structural defects in carbon anodes, such as horizontal cracks. The coke aggregates are composed of particles with different size distributions and shapes, which may strongly affect the failure behavior of the anode during compaction. In this paper, the effects of particle size distributions and shapes on the mechanical behavior and the failure of coke aggregates are investigated using the discrete element method modeling technique. The numerical results reveal that, although the mechanical behavior of coke mixtures is generally dependent on larger particles, the presence of fine particles in the coke aggregates reduces fluctuations in the stress–strain diagram. In addition, the rolling resistance model is employed as a parameter representing the effect of particle shape. It is shown that the rolling resistance model can be an alternative to the overlapped spheres model, which has a higher computational cost than the rolling resistance model. The second-order work criterion is used to evaluate the stability of the coke aggregates, the results of which indicate that the addition of fine particles as well as increasing the rolling resistance between the particles increases the stability range of the coke aggregates. Moreover, by using the analysis of micro-strain contour evaluations during the compaction process, it is shown that, both by adding fine particles to the coke mixture and by increasing the rolling resistance between the particles, the possibility of creating a compression band in the coke aggregates is reduced. Since the presence of the compaction bands in the anode paste creates an area prone to horizontal crack generations, the results of this study could lead to the production of carbon anodes with fewer structural defects.

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Triaxial Shear Tests on Pervious Gravelly Soils

Cited by 73 publications

References 1 publication

Analysis Of The Residual Red Soil Shear Test With The Slurry Method In The Regency Of Semarang

Analysis Of The Residual Red Soil Shear Test With The Slurry Method In The Regency Of Semarang

Unsaturated Soil Mechanics: Fundamental Challenges, Breakthroughs, and Opportunities

Effect of Particle Size Distributions and Shapes on the Failure Behavior of Dry Coke Aggregates

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