Controlling Conditions of the One-Dimensional Consolidation Test on Peat Soil

Peng, Bo; Feng, Ruoqiang; Lei, Wu; Shen, Yupeng

doi:10.3390/app112311125

Cited by 4 publications

(2 citation statements)

References 40 publications

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“…Soil is mostly not peaty soil in Barito Delta since the values of SOM are mostly less than 4%. Only Natural Levee and Tidal Flat (Figure 6(b)) have peaty soil because the values of SOM are more than 10% [58]. SOM percentage changes along soil pro le in Barito Delta (Figures 6(a) and 6(b)).…”

Section: Resultsmentioning

confidence: 99%

Soil Physical Characteristics and Saturated Hydraulic Conductivity in the Landform of Barito Delta, Kalimantan, Indonesia

Arisanty

Rahmawati

Rosadi

2022

Applied and Environmental Soil Science

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We explore the soil physical characteristics in wetland of Barito Delta from primary data of soil sample and electrical resistivity measurement with the support from some secondary data. We also estimate saturated hydraulic conductivity (Ks) in Barito Delta from soil physical characteristics applying Saxton and Rawls (1986) and Weynants et al. (2009). Soil texture profile is determined from interpolation of soil fraction in each layer applying Bayesian statistics to analyze soil physical characteristics in the landforms of Delta. Clay is the dominant soil fraction in the soil of Barito Delta. Clay fraction percentage decrease along the depth of soil profile as it reaches fine sand particles deriving from ancient sedimentation from the past. It is an opposite with soil organic matter content that has contrast value from 1st to 2nd soil depth, but a few discrepancy from 3rd depth to downward direction. The content of clay in the soil depends on the sedimentation activity in the landform. Clay is dominant soil particle in the Delta; in case, it is in flat area and there is no intensive of sea water sedimentation such as in Basin of Peat Anticline and Natural Levee. In more than 2 m depth of soil, loamy sand and silty clay textures are mostly in the landform that is influenced by sea water activity, while by river water is clay loam. Ks values from Saxton and Rawls (1986) are close to Ks values from the measurement of previous studies. Ks values are generally small in Barito Delta that is mostly ranging from 1.10−7 to 2 m s−1. Ks values are larger following the depth of soil profile. The values of Ks are smaller in Basin of Peat Anticline and Natural Levee than in Tidal Flat and Beach Ridge. It is because both landforms have clay as dominant soil particles.

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Section: Resultsmentioning

confidence: 99%

Soil Physical Characteristics and Saturated Hydraulic Conductivity in the Landform of Barito Delta, Kalimantan, Indonesia

Arisanty

Rahmawati

Rosadi

2022

Applied and Environmental Soil Science

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“…The graph above determines the value of the secondary compression index (cα). Subsidence due to secondary consolidation is essential for all types of highly compressible organic and inorganic soils (Peng et al, 2021).…”

Section: Relation Of Void Ratio and Time Log (Figure 4 And 5)mentioning

confidence: 99%

Soft Soil Consolidation with the Electroosmosis Effect

'Ain

Kamil

2022

ARCEE

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Areas with geomorphology in plains or lowlands, such as Pontianak City, have soft soil and peat covering most of their area. Lands in areas with low soil bearing capacity, high water content, high compressibility properties, and high groundwater levels or even practically the same as the land surface. Theoretically, soil improvement is preferred over several other options such as relocation, redesign, and replacement of unsuitable soils. Electroosmosis is one of the effective methods to reduce the moisture content in soft clay to reduce the amount of settlement that occurs when loading is carried out. The use of electroosmosis by placing a conductor in the ground with a certain distance, then between the conductors, an electric current is given. By reducing the water content in the soil, the decrease in soil subsidence will decrease and increase the strength of the soil. This electroosmosis test was carried out in a laboratory with a test model using a PVC pipe tube with a length of 19 cm and a diameter of 15 cm using five conductor rods. The soil specimens are subjected to two cases: direct loading and preloading during the electroosmosis test. Tests were conducted to study the effect of the current magnitude applied with a particular voltage on the physical and mechanical properties of the soil. The tests showed a significant of settlement with 0.0679 cm and 0.0663 cm for direct loading and preloading with the current effect. The mechanical properties showed an improvement in the soil samples, which was indicated by a low compressibility index and an increase in the shear strength of the soil.

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Changes of water in different states during peat soil compression

Peng,

Feng,

et al. 2023

Bull Eng Geol Environ

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Controlling Conditions of the One-Dimensional Consolidation Test on Peat Soil

Cited by 4 publications

References 40 publications

Soil Physical Characteristics and Saturated Hydraulic Conductivity in the Landform of Barito Delta, Kalimantan, Indonesia

Soil Physical Characteristics and Saturated Hydraulic Conductivity in the Landform of Barito Delta, Kalimantan, Indonesia

Soft Soil Consolidation with the Electroosmosis Effect

Changes of water in different states during peat soil compression

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