Land Subsidence in Bandung Basin and its Possible Caused Factors

Gumilar, Irwan; Abidin, Hasanuddin Z.; Hutasoit, Lambok M.; Hakim, Dudung Muhally; Sidiq, Teguh P.; Andreas, Heri

doi:10.1016/j.proeps.2015.03.026

Cited by 42 publications

(21 citation statements)

References 3 publications

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“…The condition showed at that time air temperature was more refreshing because based on the position of elevation place at 670 msal generally inhabited by a plant of lowland tropical rainforest. The data annual temperature average at the Bandung Basin is about 23.7 °C [18]. The cold condition was occurring before 11820 years BP, slightly older than that, at the position of samples were deeper 1-2 m than the position of the carbon dating sample.…”

Section: A Lower Montane Forest Zonementioning

confidence: 86%

Climate Changes Record of Bandung Paleolake

Winantris

Fauzielly

Jurnaliah

2018

Int. J. Adv. Sci. Eng. Inf. Technol.

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The research was carried out on the sediment of Middle Bandung Basin. Samples were taken from a depth of 20 meters to 10 meters, each meter a taken sample for analysis. The characteristics of the sample are greenish grey clay deposits with remnant plant material. Research aims to identify climate change based on palynological data from the Pleistocene-Holocene Boundary. The resulting of radiocarbon dating (14C), shows that age of the sample from the 18 m depth around 11820 years BP. Separation of pollen from sediment used an acetolysis method. Palynomorphs are grouped according to their habitat that related to vegetation zone, i.e., lowland forest zone, submontane forest zone, lower montane forest zone, riparian/open herbaceous swamp vegetation, freshwater algae, and Aquatic plant. The composition of pollen shows a succession of vegetation that reflection of climate changes. From Pleistocene-Holocene boundary at least has been recorded seven times of the shift vegetation zone that is evidence of climate change. The oldest sample at 20 m depth is the coldest temperature occurred in zone one at a depth of 20-19 meters that was dominated by lower montane forest vegetation; the event was around Late Pleistocene. The opposite condition occurred in zone seven at 10 meters depth; temperature becomes warmer that indicated by disappears of pollen submontane forest and dominated by lowland forest pollen similar to the current condition. Climate change is also reflected by fluctuations the quantity pollen of open herbaceous swamp vegetation.

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Section: A Lower Montane Forest Zonementioning

confidence: 86%

Climate Changes Record of Bandung Paleolake

Winantris

Fauzielly

Jurnaliah

2018

Int. J. Adv. Sci. Eng. Inf. Technol.

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“…In Indonesia, land subsidence has occurred in several coastal cities such as in Jakarta [Ng et al, 2012;Abidin et al, 2015], Semarang [Marfai and King. 2008;Abidin et al, 2009; Kubis et al, 2011; Abidin et al, 2011], Bandung [Gumilar et al, 2015], and Surabaya [Aanjasmara et al, 2020].…”

Section: Journal Of Ecological Engineeringmentioning

confidence: 99%

Estimation of Land Subsidence Using Sentinel Image Analysis and Its Relation to Subsurface Lithology Based on Resistivity Data in the Coastal Area of Semarang City, Indonesia

Widada¹,

Zainuri²,

Yulianto³

et al. 2020

J. Ecol. Eng.

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The Semarang city is the capital of the Central Java Province that is experiencing rapid urban growth. Land subsidence in Semarang has been widely reported and its impacts can be seen already in daily life. In order to minimize its damage, land subsidence monitoring is required as a part of natural disaster mitigation. On the other hand, understanding of the subsurface lithology conditions is needed to explore the causes of subsidence in certain areas. One of the methods of monitoring land subsidence is by utilizing Synthetic Aperture Radar (SAR) satellite image which is used in this research. In turn, the subsurface lithology can be studied with the geoelectric methods, one of which is the resistivity method. The purpose of this research is to estimate the land subsidence in the Semarang city using the Sentinel Image Analysis by means of the DInSAR Method and its relation with subsurface lithology studied using the resistivity geoelectric method. The result of the research shows that the average value of subsidence was located in the Genuk District area and Semarang Utara District area which each subsidence value is 9.8 cm/year and 12.7 cm/year. This is because the lithology under the surface of the two locations is clay and silt in a soft condition that is thicker than other locations. The saltwater content contributes to the consolidation process in the lithology. There is a tendency that land subsidence is greater in the port and industrial areas than in other regions, due to building loads.

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“…Kawasan Gedebage berada di cekungan Bandung yang merupakan cekungan intra-montana besar dikelilingi oleh dataran tinggi vulkanik [3]. Topografi cekungan Bandung dapat dilihat pada Gambar 1.…”

Section: Pendahuluanunclassified

Karakteristik Tanah Kawasan Gedebage Kota Bandung Berdasarkan Hasil Uji Lapangan dan Laboratorium

Zhafirah

2020

Jurnal Konstruksi

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Kawasan Gedebage berada di Kota Bandung, Jawa Barat yang merupakan lokasi strategis dan dapat diakses dengan mudah dari banyak daerah. Kawasan Gedebage kini sedang dilaksanakan pengembangan mulai dari infrastruktur dan prasarana pendukung lainnya. Namun, kawasan Gedebage ini termasuk ke dalam wilayah cekungan Bandung yang didominasi oleh lempung lunak. Lempung lunak termasuk jenis tanah yang kurang menguntungkan. Karakteristik, sifat, dan parameter-parameter tanah tersebut perlu diketahui sebagai data awal dalam analisis perencanaan konstruksi selanjutnya. Metode yang digunakan dalam penelitian ini adalah pengujian di lapangan dan di laboratorium. Pengujian lapangan yang dilakukan berupa CPT dan DPT, sedangkan pengujian laboratorium meliputi sifat fisis dan mekanis tanah. Hasil yang didapatkan pada penelitian ini menunjukkan bahwa tanah di kawasan Gedebage, Kota Bandung merupakan lempung lunak dengan plastisitas tinggi. Klasifikasi menurut AASHTO tanah pada penelitian ini merupakan kelompok A-7-5(41) dan menurut USCS adalah kelompok CH.

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Land Subsidence in Bandung Basin and its Possible Caused Factors

Cited by 42 publications

References 3 publications

Climate Changes Record of Bandung Paleolake

Climate Changes Record of Bandung Paleolake

Estimation of Land Subsidence Using Sentinel Image Analysis and Its Relation to Subsurface Lithology Based on Resistivity Data in the Coastal Area of Semarang City, Indonesia

Karakteristik Tanah Kawasan Gedebage Kota Bandung Berdasarkan Hasil Uji Lapangan dan Laboratorium

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