Analisis Penyebab Kejadian dan Evaluasi Bencana Tanah Longsor di Desa Banaran, Kecamatan Pulung, Kabupaten Ponorogo, Provinsi Jawa Timur Tanggal 1 April 2017

Naryanto, Heru Sri; Soewandita, Hasmana; Ganesha, Deliyanti; Prawiradisastra, Firman; Kristijono, Agus

doi:10.14710/jil.17.2.272-282

Cited by 42 publications

(39 citation statements)

References 1 publication

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“…Vulnerability is a combination of conditions that are influenced by physical, social, economic, and environmental factors that increase the vulnerability of individuals, communities, assets, or systems to the impact of hazards [8]. Social Vulnerability is a community boundary against the impact of natural disasters in disaster preparedness [9]. Physical vulnerability is the part that is lost or damaged when affected by a disaster.…”

Section: Methodsmentioning

confidence: 99%

Landslide and Moving Ground Disasters in Sumurup Village, Trenggalek District, East Java, Indonesia: A Case Study

Isnaini

Pandin

Waloejo

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The research aims to analyze the impact of disasters that occurred in the Trenggalek Regency, East Java, Indonesia. Method: Descriptive impact analysis is used as a research method to analyze disaster events in examining disaster risk factors and as a basis for early stage designs to reduce the impact of disasters. Result: The natural disasters in Trenggalek Regency are caused by high rainfall, and for its own territory. Trenggalek Regency is surrounded by mountains and steep slopes. When rain season happened, water seeps into the ground but is difficult to drain, as a result of which the cliffs are prone to landslides. The cliffs have a very high or extreme level of security, so that the level of vulnerability and vulnerability to landslides and landslides is very likely. Conclusion: The visible soil conditions indicate that the condition is prone to landslides, coupled with its geological location in the fault zone, as well as its rock structure consisting of volcanic rock. The high intensity of landslides was also caused by the high intensity of rain. The management disaster resilience applied to prepare people around village of Sumurup.

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Section: Methodsmentioning

confidence: 99%

Landslide and Moving Ground Disasters in Sumurup Village, Trenggalek District, East Java, Indonesia: A Case Study

Isnaini

Pandin

Waloejo

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Infiltrasi yang rendah akan mengakibatkan proses penjenuhan menjadi lebih lama yang berakibat waktu terjadinya longsor menjadi lebih lama. Semakin lancar air hujan masuk ke dalam pori-pori tanah sampai batas kontak dengan batuan dasar (bidang gelincir) maka beban tanah semakin besar sehingga mengganggu kestabilan lereng (Naryanto et al, 2019). Tanah dengan kadar air tinggi merupakan indikasi peningkatan tekanan air pori.…”

Section: Waktu Terjadinya Longsorunclassified

Simulasi Pengukuran Longsor Pada Kemiringan Lereng Dan Ketebalan Seresah Yang Berbeda

Akbar

Utami

Agustina

2022

JTSL

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Most areas in Indonesia have a high risk of landslides due to geological and geographical conditions. Landslide is affected by natural factors (such as slope stability) and human-made factors (such as land use). Slope stability is influenced by morphological conditions and hydrological conditions. Land use or land cover may affect surface roughness, which determines the infiltration rate into the soil. This study was an attempt to explore the influence of slope gradient and litter thickness on time required for landslides and the volume of landslides. This research was carried out in two different locations, Agro Techno Park and the Experimental Garden of the Faculty of Agriculture. The study was conducted in eight treatments, combinations of three factors, i.e. soil texture, slope gradient, and litter thickness, using ten replications. The duration required for landslides and the volume of landslides were measured. The gradient of the slope has a significant effect on the volume of landslides. An increase in slope at any litter thickness resulted in up to three times more volume. The difference in slope also has a significant effect on the time required for landslides. The clayey texture needs two times the longer time required for landslides to occur. The slope gradient has a more dominant influence than the thickness of litter and soil texture. The effect of the thickness of the litter is getting bigger; on the other hand, the effect of soil texture is getting smaller with increasing slope.

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“…Pada rentang waktu tahun 2008 sampai 2017 bencana tanah longsor di Indonesia rata-rata 363 tiap tahunnya (Naryanto et al, 2019). Sobirin et al (2017) menyatakan kejadian tanah longsor sangat merugikan masyarakat baik secara materiil maupun non materiil seperti terputusnya jalan, kerusakan saluran irigasi, rusaknya pasar dan bahkan kehilangan anggota keluarga.…”

Section: Pendahuluanunclassified

“…Faktor pengontrol adalah faktor yang mempengaruhi kondisi material itu sendiri seperti kondisi geologi, kemiringan lereng, litologi, sesar dan kekar pada batuan. Faktor pemicu adalah faktor yang menyebabkan pergerakan pada suatu material seperti curah hujan, gempa bumi, erosi, tutupan lahan dan aktivitas manusia (Naryanto et al, 2019). Hubungan antara faktor pengontrol dan faktor pemicu menyebabkan lereng tidak stabil dan berpotensi besar mengalami gerakan massa tanah atau longsor (Pirenaningtyas et al, 2020).…”

Section: Pendahuluanunclassified

Pengaruh Batuan Dan Seresah Pada Permukaan Tanah Terhadap Pendugaan Longsor Hasil Simulasi

Lestari

Utami²,

Agustina³

2022

JTSL

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Landslide is a natural disaster that often occurs in Indonesia. The total of landslides from 2003 to 2018 is 363, which were caused by controlling factors and triggering factors or restraining factors. The relation between two factors (litter and rock) that cause landslide is still rarely researched. This research was carried out from September 2020 to March 2021, in Agro Techno Park Cangar and Jatimulyo Experimental Station. A simulation used an acrylic box (100 cm x 50 cm x 75 cm), with soil 20 cm thick on an aluminium plate adjusted at a slope of 50°. Rainfall intensity was set at 70 mm hour-1, using an Adjustable Water Gun (as a rainfall simulator) with a current of 2.6 amperes rotation sprayer A. There were eight combination treatments consisting of three factors. The variables measured were landslide duration and volume. Data obtained were then analyzed using an unpaired t-test. Apparently, the faster the landslide occurs, the larger the avalanche volume. Among the three factors observed (soil texture, litter and rocks at the surface), surface litter was the most determining factor for landslide duration and volume. Landslide duration and volume were far different between the two soil textural classes when there was no litter at the soil surface. In contrast, if there was 3 cm litter, landslide duration and volume were quite similar between the two soil textural classes. To a small extent, the occurrence of the rocks at the soil surface may fasten and increase landslide volume.

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Analisis Penyebab Kejadian dan Evaluasi Bencana Tanah Longsor di Desa Banaran, Kecamatan Pulung, Kabupaten Ponorogo, Provinsi Jawa Timur Tanggal 1 April 2017

Cited by 42 publications

References 1 publication

Landslide and Moving Ground Disasters in Sumurup Village, Trenggalek District, East Java, Indonesia: A Case Study

Landslide and Moving Ground Disasters in Sumurup Village, Trenggalek District, East Java, Indonesia: A Case Study

Simulasi Pengukuran Longsor Pada Kemiringan Lereng Dan Ketebalan Seresah Yang Berbeda

Pengaruh Batuan Dan Seresah Pada Permukaan Tanah Terhadap Pendugaan Longsor Hasil Simulasi

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