Influence of Clay on Time Domain Induced Polarization

Yatini, Yatini

doi:10.17509/ijost.v3i1.10794

Cited by 5 publications

(4 citation statements)

References 9 publications

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“…Other measurement results obtained moderate to high chargeability values with a spread pattern in the research location. This subsurface rock layer structure indicates that the study site has karstification processes in limestone, which are heterogeneous based on depth [15,19,47,48]. Zhang et al [49], generally, water-filled karst caves usually begin with low apparent resistivity values and rapidly increasing conductivity.…”

Section: Chargeability Measurementmentioning

confidence: 87%

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Identification of Karstification Zoning and Aquifer Channels in Karst Basin at Sendang Biru Beach, Malang-Indonesia: A Case Study

Wahid¹,

Sunaryo²,

Susilo³

et al. 2022

IJDNE

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Karst zoning and channel aquifers in the karst basin at Sendang Biru Beach, Tambak Rejo Village have been investigated. Sendang Biru Beach has a cave appearance as a karst morphological feature and is composed of limestone. Seasonal karst water sources come from springs, surface runoff, underground rivers, channels in valleys, basins, and slopes that often experience drought. The purpose of this study is to identify the presence of karst aquifers and karstification zones that are prone to damage or disasters in the karst environment. The method used is a geophysical combination of Electrical Resistivity Tomography (ERT), Induced Polarization (IP), and Self Potential (SP). The results showed that the eastern part's karstification zone was characterized by moderate to high resistivity and a chargeability zone with a moderate to high range. In addition, the existence of karst aquifer channels in the anomalous zone of low resistivity, high chargeability, and negative natural potential. This zone is located in the Qas Formation, with the water flowing from west to east and from west to south. The inundated karst aquifer that spreads in a circular pattern with different depths interspersed by limestone cracks causes a heterogeneous karstification process.

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Section: Chargeability Measurementmentioning

confidence: 87%

“…When chargeability increases significantly with increasing exploration depth, this indicates the presence of more massive rocks. Yatini [47] explains, the greater the water content, the greater the chargeability due to swelling of the clay content. Figure 4 shows the level of chargeability anomaly in the location area.…”

Section: Chargeability Measurementmentioning

confidence: 99%

Identification of Karstification Zoning and Aquifer Channels in Karst Basin at Sendang Biru Beach, Malang-Indonesia: A Case Study

Wahid¹,

Sunaryo²,

Susilo³

et al. 2022

IJDNE

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“…Current and voltage propagation geometry influence the resistivity value calculation, by forming a half-hemispherical pattern [9]. This is calculated to determine the subsurface lithological type and fluid influence in the research location [17], [18].…”

Section: Methodsmentioning

confidence: 99%

Subsurface Identification using Resistivity Method for Infrastructure Planning in Benowo Area, Surabaya City

Utama,

Putra,

Indriani

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Subsurface rock identification in infrastructure construction is important to get the information in planning and monitoring the rock carrying capacity and groundwater systems for infrastructure construction. To get the subsurface condition information that are relatively shallow with detailed results, Resistivity method with Wenner configuration is used. Research is in Benowo area, where dominated by pond area. This research used 5 Resistivity lines, which are divided into 2 locations separated by distance of about 2400 meters as Z1 and Z2 areas. For the subsurface resistivity section at Z1 area there are 2 lines, while at Z2 area there are 3 lines. It is known at Z1 area, top layer is topsoil (2.26-33.00 Ωm) and the bottom layer was identified as clay (0.30-2.26 Ωm). At Z2, top layer being topsoil (0.306-0.708 Ωm), followed by clay layer (0.100-0.306 Ωm), and the sand layer (0.231-0.535 Ωm) in the bottom of resistivity model. Groundwater system shows topsoil acts as a vadose zone, clay layer acts as an aquiclude and the sand layer acts as an unconfined aquifer. Saturated water influences the low resistivity value measurement related to the environmental condition dominated by pond area, beside measurements in rainy season are also suspected to be the cause of low resistivity measured. To be applied infrastructure development in the Benowo area need further treatment activity like soil and/or rock pavement to support infrastructure safety. This research result is related to geotechnical aspects like rock coring, pavement, and optimum architectural design can be an alternative for further research.

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“…The authors concluded that a density, between Reduced Standard Proctor compaction and Standard Proctor compaction gave the optimal density for stable and minimal hydraulic conductivity of clay liners. Clays have been known to form at the expense of primary rock forming minerals, which are unweathered minerals with relatively large crystals that formed under constant conditions, example mica, quartz, muscovite, and feldspar (Yatini, 2018). Daniel & Wu (1993) carried out a study on a clay soil from Texas to evaluate the range of moisture contents and dry unit weights, at which compacted test specimen will have low hydraulic conductivity and minimal potential for shrinkage on drying and adequate shear strength.…”

Section: Review Of Past Related Studiesmentioning

confidence: 99%

Effect of Density on Consolidation and Creep Parameters of Clay

Alhaji

Alhassan

Adejumo

et al. 2020

Indonesian J. Sci. Technol

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Effect of density on consolidation and creep parameters of a clay soil was investigated using a soil classified according to Unified Soil Classification System (USCS) as Clay of High plasticity (CH) and composing majorly of secondary minerals, including montmorillonite. The air-dried soil was compacted at five different compaction energy levels (Reduced Standard Proctor compaction energy, Standard Proctor compaction energy, West African compaction energy, Reduced Modified Proctor compaction energy, and Modified Proctor compaction energy). Specimens for consolidation tests were molded at the five different compaction energy levels (densities). The consolidation parameters (initial void ratio, compression index, and preconsolidation pressure) were observed to be empirically related to the compaction energy. The creep parameters (i.e. primary compression index, secondary compression index, and magnitude of creep) were observed to increase with increases in loading to 387kN/m2, after which the values decreased. Curves resulting from these relationships were observed to increase with increases in compaction energy level and tent towards straight line at Modified Proctor compaction energy. Maximum magnitude of creep estimated for three years was observed to reduce from 455.5 mm at Reduced Standard Proctor compaction energy through 268 mm at West African compaction energy to 247.4 mm at Modified Proctor compaction energy levels.

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Influence of Clay on Time Domain Induced Polarization

Cited by 5 publications

References 9 publications

Identification of Karstification Zoning and Aquifer Channels in Karst Basin at Sendang Biru Beach, Malang-Indonesia: A Case Study

Identification of Karstification Zoning and Aquifer Channels in Karst Basin at Sendang Biru Beach, Malang-Indonesia: A Case Study

Subsurface Identification using Resistivity Method for Infrastructure Planning in Benowo Area, Surabaya City

Effect of Density on Consolidation and Creep Parameters of Clay

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