Magnetic properties of soils from landslide potential area (Case study: Pasir Ipis-Lembang, West Bandung)

Ramdhani, Rifat; Fitriani, Dini; Kirana, Kartika Hajar; Wijatmoko, Bambang; Sutanto, Ogi

doi:10.1088/1742-6596/739/1/012107

Cited by 4 publications

(4 citation statements)

References 3 publications

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“…the bulk of rock-forming minerals belongs to the group of paramagnets. Furthermore, in the ground almost always contains some ferromagnetic compounds [31,32].…”

Section: Discussionmentioning

confidence: 99%

Influence of Electromagnetic Effects on the Parameters of the Formation of Secondary Ecosystems

Vasilyeva¹,

Kovshov²,

Zelentsova³

2021

Pol. J. Environ. Stud.

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The article presents the results of studies that allow us to assess the environmental impact of various types of electromagnetic fields on the effectiveness of subsequent remediation measures and the inclusion of areas that have been exposed to electromagnetic effects in residential areas, as well as the use of agricultural land. The growth dynamics of biotest objects of vegetation planted in technogenic soil that has undergone preliminary treatment with electromagnetic fields of various nature was evaluated. An assessment was also made of the effect of magnetization on the structure of the soil and its filtration ability, including the change in the state of soil layers caused by the action of electromagnetic fields on inherent moisture. As a result of the research, data were obtained that make it possible to assess the degree of influence of electromagnetic fields of various kinds on the effectiveness of subsequent reclamation measures and the use of the inclusion of zones exposed to electromagnetic effects in the composition of residential areas, as well as for agricultural land. Thus, plants planted in technogenic soil, previously subjected to electromagnetic influence, demonstrate a pronounced inhibition of ontogenesis, this effect is enhanced if the soil was previously in a moist state. It was found that the introduction of fertilizers into the soil, previously subjected to electromagnetic action, has a beneficial effect on plant growth, but their effectiveness is significantly reduced.

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“…the bulk of rock-forming minerals belongs to the group of paramagnets. Furthermore, in the ground almost always contains some ferromagnetic compounds [31,32].…”

Section: Discussionmentioning

confidence: 99%

Influence of Electromagnetic Effects on the Parameters of the Formation of Secondary Ecosystems

Vasilyeva¹,

Kovshov²,

Zelentsova³

2021

Pol. J. Environ. Stud.

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“…The advantages of using this type of instruments are simple installation, low cost, and long term reliable. The mon-itoring of pore-water pressure and rainfall with high temporal resolution is essential for the assessment of slope instability caused by heavy rainfall [150]. [150] use an inclinometer to identify the depth of the shear surface.…”

Section: Geotechnical Instrumentsmentioning

confidence: 99%

“…The mon-itoring of pore-water pressure and rainfall with high temporal resolution is essential for the assessment of slope instability caused by heavy rainfall [150]. [150] use an inclinometer to identify the depth of the shear surface. Using piezometer they analyzed the pore-water pressure at the shear surface identified by the inclinometer.…”

Section: Geotechnical Instrumentsmentioning

confidence: 99%

Review of Landslide Monitoring Techniques With IoT Integration Opportunities

Hemalatha

Uhlemann

Reghunadh

et al. 2022

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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With the advancements of technology in the era of big data and artificial intelligence, IoT (Internet of Things) has a major role for the purpose of monitoring natural disasters like landslides. Landslides are a catastrophic disaster worldwide that alter from terrain to terrain. In the pursuit of saving communities that are endangered by landslides, many monitoring techniques are practiced. This paper is a survey of the major landslide monitoring techniques adapted in different parts of the world to monitor unstable slopes. It provides a glance into the challenges and opportunities of integrating IoT into the major landslide monitoring techniques, which are explained briefly with emphasis on real-world case studies. Each technique is presented regarding the kind of monitoring parameters, the type of landslides that it can monitor, landslide investigating phases, advantages, disadvantages, and the possibility of IoT to integrate with each techniques. This paper also aims to provide an overview of landslide monitoring in general to non-specialist in the field. The major monitoring techniques are classified based on the type (fall, topple, slide, spread, flow, slope deformation), velocity (slow, moderate, rapid), monitoring parameters (meteorological, geological, hydro-geological, physical, geophysical), monitoring phases (spatial, temporal) and early-warning systems (spatial, temporal) of landslides. This classification will serve as a guideline (but not a replacement for expert advice) for selecting appropriate landslide monitoring technique and the classifications are expressed through visual representations.

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“…Ramdhani dkk. melakukan penelitian tentang hubungan antara nilai suseptibilitas tanah dengan potensi longsor di daerah Pasir Lembang, Bandung Barat [5]. Hasil penelitian menunjukkan bahwa sampel didominasi oleh bahan ferimagnetik dan memiliki nilai χ FD (%) yaitu 2,0 -10% yang menunjukkan bahwa sampel mengandung bulir superparamagnetik dan berpotensi untuk terjadinya longsor [5].…”

Section: Menurutunclassified

Analisis Suseptibilitas Magnetik Tanah Lapisan Atas Sebagai Indikator Bencana Longsor Di Bukit Sula Kecamatan Talawi Kota Sawahlunto

Budiman

Puryanti

Naldi

2018

JKFI

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Landslide is a disaster that can harm properties and souls. Losses due to landslide can be minimized if there are known signs of landslide.. In this research, the landslide indicator is known through the analysis of the magnetic susceptibility of topsoil. This research is a case study conducted at Bukit Sula, Talawi District, Sawahlunto City.Soil samples were taken from two locations in Sula Hill, which are vegetated location (location A) and unvegetated location (location B). This research’s samples took with downward vertical of each 100 m was taken with a space range of 5 m, so that is obtained 21 sampling points at each of these locations. Measurement of magnetic susceptibility value using Bartington Magnetic Susceptibility Meter measured at two frequencies, namely low frequency of 0.465 kHz (χLF) and high frequency of 4.65 kHz (χHF). At location A the obtained average value of χLF is 804.05×10-8 m3kg-1while the average value of χHF is 804.25×10-8 m3kg-1. At location B the obtained average value of χLF is 9.85×10-8 m3kg-1, while the average value of χHF is 9.64×10-8 m3kg-1. XRF test result showed that magnetic minerals in samples at both locations a hematit (Fe2O3). Based on the comparison of susceptibility value and concentration of hematite and quartz minerals between sample of location A and location B, it can be said that location B has been eroded. Based on the presence of superparamagnetic grain, the samples taken from location B have finer grains than the samples at location A. Scanning Electron Microscope (SEM) also shows that sample B has finer grains than the sample B. These are because location B is an area without vegetation, causing rain drop directly into the soil and can decrease the level of soil grain attachment. Therefore, location B more likely occurred landslide than location A.

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Magnetic properties of soils from landslide potential area (Case study: Pasir Ipis-Lembang, West Bandung)

Cited by 4 publications

References 3 publications

Influence of Electromagnetic Effects on the Parameters of the Formation of Secondary Ecosystems

Influence of Electromagnetic Effects on the Parameters of the Formation of Secondary Ecosystems

Review of Landslide Monitoring Techniques With IoT Integration Opportunities

Analisis Suseptibilitas Magnetik Tanah Lapisan Atas Sebagai Indikator Bencana Longsor Di Bukit Sula Kecamatan Talawi Kota Sawahlunto

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