A note on falling-head and rising-tail permeability tests on saturated soils in centrifuge

Gan, Lei; Liu, F.X.; Xia, Shengquan

doi:10.1139/cgj-2019-0222

Cited by 2 publications

(1 citation statement)

References 31 publications

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“…This research was conducted in West Battang Village. The focus of this study was to analyze physical parameters of the soil in landslide-prone areas in term of testing the grain size of the soil using a sieve and measuring soil permeability using a permeameter with the falling head permeability method (Assaad et al, 2013;Elhakim, 2016;Lei et al, 2020;Nagy et al, 2013;Zhang et al, 2020). Previous research conducted by Pratama et al (2017) in Batang Regency analyzed the physical parameters of the soil such as grain size and permeability.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Soil Physical Parameters in Landslide Prone Areas in West Battang Village, Palopo City as Early Mitigation of Landslide Disasters

Palloan,

Ansar,

Sulistiawaty

et al. 2023

jppipa, pendidikan ipa, fisika, biologi, kimia

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This study investigates physical properties parameters of the soil in landslide prone areas in West Battang Village, Palopo City. This study aimed was to determine the grain size of the soil, the value of soil permeability, and the distribution characteristics of the soil in landslide-prone areas. The 30 samples were taken randomly at a depth of 30 cm, then tested the soil grain size, permeability, and the samples distribution. The results showed that the grain size of the soil consisted of gravel, coarse sand, medium sand, and fine sand, with a size of approximately 0.075 – 4.75 mm. The soils in West Battang Village are dominated by sandy soil. The grains soil in the West Battang Village is dominated by coarse sand. The physical characteristics of the soil grains in this area are classified as poorly graded due to incomplete grain size with soil permeability values in the range of 0.5 – 2.0 cm/hour which can absorb water in category of moderately slow. These permeability values can be categorized as a moderately slow and can stimulate landslides due to gradually accumulation of water in the soils.

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Section: Introductionmentioning

confidence: 99%

Analysis of Soil Physical Parameters in Landslide Prone Areas in West Battang Village, Palopo City as Early Mitigation of Landslide Disasters

Palloan,

Ansar,

Sulistiawaty

et al. 2023

jppipa, pendidikan ipa, fisika, biologi, kimia

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The Temperature-Influenced Scaling Law of Hydraulic Conductivity of Sand under the Centrifugal Environment

He,

Jiang,

Wang

2024

Water

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Accurate characterization of soil hydraulic conductivity influenced by temperature under a centrifugal environment is important for hydraulic and geotechnical engineering. Therefore, a temperature-influenced scaling law for hydraulic conductivity of soil in centrifuge modeling was deduced, and a temperature-controlled falling-head permeameter apparatus specifically designed for centrifuge modeling was also developed. Subsequently, a series of temperature-controlled falling-head tests were conducted under varying centrifugal accelerations to achieve the following objectives: (1) examine the performance of the apparatus, (2) investigate the influence of temperature and centrifugal acceleration on the hydraulic conductivity of sand and its scaling factor, and (3) validate the proposed scaling law for hydraulic conductivity. The main conclusions of the study are as follows. Firstly, the apparatus demonstrated good sealing and effectively controlled the temperature of both the soil specimen and the fluid. Secondly, the hydraulic conductivity of sand was not constant but varied over time, likely due to the presence of radial seepage in addition to vertical seepage as the test progressed. Thirdly, temperature significantly influenced the hydraulic conductivity of sand and its scaling factor under the same centrifugal acceleration. Therefore, it is essential to closely monitor the temperature of models during centrifugal tests. Finally, the measured and calculated values of the scaling factor index for the hydraulic conductivity of sand showed good agreement, verifying the proposed scaling law.

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A note on falling-head and rising-tail permeability tests on saturated soils in centrifuge

Cited by 2 publications

References 31 publications

Analysis of Soil Physical Parameters in Landslide Prone Areas in West Battang Village, Palopo City as Early Mitigation of Landslide Disasters

Analysis of Soil Physical Parameters in Landslide Prone Areas in West Battang Village, Palopo City as Early Mitigation of Landslide Disasters

The Temperature-Influenced Scaling Law of Hydraulic Conductivity of Sand under the Centrifugal Environment

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