THE INFLUENCE OF SAND’s GRADATION AND CLAY CONTENT OF DIRECT SHEART TEST ON CLAYEY SAND

Wibisono, Gunawan; Nugroho, Soewignjo Agus; Umam, Khairul

doi:10.1088/1757-899x/316/1/012038

Cited by 11 publications

(7 citation statements)

References 1 publication

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“…Daya dukung tanah dipengaruhi oleh nilai kohesi, tanah lempung dikategorikan tanah jelek karena memiliki kohesif lunak sehingga memiliki daya dukung yang rendah [5] pembangunan jalan apabila tetap dibangun diatasnya tanpa dilakukan perbaikian pada tanah tersebut maka akan mengakibatkan kerusakan pada jalan tersebut [6].…”

Section: Pendahuluanunclassified

Kuat Geser Tanah Lempung Dengan Abu Tandan Sawit dan Semen

Anggraini¹,

Saleh²

2022

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Daya dukung dan kuat geser tanah merupakan sifat-sifat yang ada pada tanah yang sangat perlu diperhatikan. Untuk tanah lempung parameter tersebut perlu diperhatikan sehingga nantinya dapat memikul beban konstruksi yang ada diatasnya. Konstruksi jalan merupakan salah satu contoh bangunan sipil yang dibangun diatas tanah. Subgrade jalan sangat perlu diperhatikan untuk pembangunan konstruksi jalan, dimana harus memiliki daya dukung yang baik. Perbaikan tanah yang bisa dilakukan untuk meningkatkan daya dukung dan memperbaiki sifat tanah lempung yang mudah mampat yaitu dengan stabilisasi. Stabilisasi tanah dengan pencampuran abu tandan sawit dan semen pada tanah lempung akan meningkatkan nilai kuat gesernya. Tujuan penelitian ini adalah untuk meningkatkan nilai kuat geser tanah lempung dengan campuran 7,5% abu tandan sawit dan 5%, 7.5%, dan 10% semen. Metode yang digunakan adalah SNI 3420:2016 untuk pengujian kuat geser. Hasilnya dari pengujian kuat geser di laboratorium nilai kohesi ( c ) dan sudut geser (φ ) tertinggi pada 7,5% abu tandan sawit dan 10% semen dengan nila kohesi 0,480 dan nilai sudut geser 41,54°. Kesimpulannya penambahan abu tandan sawit dan semen dapat meningkatkan nilai kohesi dan sudut geser tanah lempung.

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Section: Pendahuluanunclassified

Kuat Geser Tanah Lempung Dengan Abu Tandan Sawit dan Semen

Anggraini¹,

Saleh²

2022

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“…According to the granulometric curve of soils, sand and gravel particles can be classified as well or poorly graded. To this end, two parameters were determined: 1) the uniformity coefficient (Cu), which evaluates how evenly the soil granulometry is distributed; and 2) the gradation coefficient (Cc), which evaluates the progression of the variation in the size of the soil particles (Wibisono et al, 2018). According to ASTM D6913M-17, well-graded sands and gravels must satisfy Cu ≥ 6 and Cu ≥ 4, respectively, and 1≤ Cc ≤ 3; if they do not satisfy any of these criteria, they will be poorly graded.…”

Section: Deposit Classificationmentioning

confidence: 99%

Effect of lithological and geotechnical characteristics on the generation of debris flows in the arid basin of Mirave, Peru

Ortega¹,

Bendezu²,

Savio³

et al. 2022

Rev. ambiente água

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Studies concerning the debris flows in mountain areas are relevant because of their potential negative effects on the human communities and infrastructure in their areas of influence. To advance the understanding of the theoretical basis, this study qualitatively analyzes the effect of lithological characteristics and soil type on the generation of debris flows in the arid basin of Mirave, in southern Peru, as a consequence of extensive rainfall. Two debris flow events are evaluated, which occurred in the studied area in March 2015 and February 2019. The method used to achieve the objective combines the use of satellite images, field data collection, and lab tests results to estimate the relative importance of the abovementioned characteristics in the generation of debris flows. The results suggest that the poor presence of clay and the predominance of sandy-loamy structured soils in the Mirave Basin make them unstable when erosion occurs. In addition, the features of broken down materials generated from residual and colluvial soils in the primary area of study are one of the main causes of debris flows in the region. Keywords: arid basin, debris flows, geotechnical characteristics, lithology.

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“…Soil cohesion is affected by the distance between the molecules and the particle size distribution, moisture content, and pore water pressure. Percentage of cohesive (clay) and soil (sand) without cohesion in the soil mass, therefore, regulates the strength of the soil [17].…”

Section: Shear Strengthmentioning

confidence: 99%

Experimental Study of Addition of Plastic Waste (PET) to the Shear Strength of Clay Soil

Ardiansah

Zainuri²,

Anggraini³

2022

civilla

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Soil is a very important element in the success of a development project and is part of the foundation used. Therefore, stable soil is needed to obtain the required soil bearing capacity. Such as clay has the characteristics of low bearing capacity and large shrinkage. This study aims to determine the increase in the value of the shear strength of clay with the stabilization of PET plastic waste. The purpose of this study is to see the value of the shear strength of clay with variations in the amount of plastic waste 0%, 3.5%, 4%, and 4.5%. Method used is SNI 3420:2016 for the shear strength test. As a result, the addition of shredded plastic waste can increase the value of the shear strength of the soil.The value of shear strength increased at the percentage of plastic addition of 3.5% of 0.5663 kg/cm2 in the original soil test, the value of shear strength was 0.5271 kg/cm2, an increase of 7.43%. The conclusion is that there is an increase in the value of the shear strength of the soil stabilized by plastic waste at a variation of 3.5% of plastic waste, an increase of 7.43%.

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THE INFLUENCE OF SAND’s GRADATION AND CLAY CONTENT OF DIRECT SHEART TEST ON CLAYEY SAND

Cited by 11 publications

References 1 publication

Kuat Geser Tanah Lempung Dengan Abu Tandan Sawit dan Semen

Kuat Geser Tanah Lempung Dengan Abu Tandan Sawit dan Semen

Effect of lithological and geotechnical characteristics on the generation of debris flows in the arid basin of Mirave, Peru

Experimental Study of Addition of Plastic Waste (PET) to the Shear Strength of Clay Soil

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