Engineering Geology of Sidosari Area, Magelang, Central Java, Indonesia

https://doi.org/10.22146/jag.30254

I Gde Budi Indrawan(1*), Diyaning Ratri(2)

(1) Department of Geological Engineering, Faculty of Engineering, Gadjah Mada University
(2) Department of Geological Engineering, Faculty of Engineering, Gadjah Mada University
(*) Corresponding Author

Abstract


Development of settlement area in Sidosari area and the surroundings requires complete understanding of the engineering geological conditions, including susceptibility to landslides, to prevent damaged properties and loss of lives. Surface engineering geological mapping at a 1:25000 scale was conducted to develop a detailed landslide susceptibility map for spatial planning and to identify most controlling factor of landslides in the research area based on conditions of geomorphology, rock and soil, geological structure, groundwater seepage, and land use. The engineering geological mapping showed that landslides commonly occurred in the moderate slopes of the denudational hill landform having slope inclination ranging from 9 to 17°, in the areas covered by residual soils of the vitric tuff 2 unit, in the areas of no groundwater seepage, and in the settlement areas, including in Kranjang Lor area where soil creeping occurred. The high susceptibility zone covered 55.5 % of the research area and was characterized by having slope inclinations ranging from 9 to 35°, engineering geological units of vitric tuff 2 and tuff breccia, and land uses of rice and dry fields and settlement. The low cohesion and very high swelling potential of the residual soils of the vitric tuff 2 unit were considered to be the main controlling factor of landslides in the research area.

Keywords


Engineering geological mapping Landslide susceptibility Soil creeping Indonesia

Full Text:

PDF


References

ASTM D854-14, Standard Test Methods for Specific Gravity of Soil Solids by Water Pycnometer, ASTM International, West Conshohocken, PA, 2014.

ASTM D2216-10, Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass, ASTM International, West Conshohocken, PA, 2010.

ASTM D2487-11, Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System), ASTM International, West Conshohocken, PA, 2011.

ASTM D2937-00, Standard Test Method for Density of Soil in Place by the Drive-Cylinder Method, ASTM International, West Conshohocken, PA, 2000.

ASTM D3080-98, Standard Test Method for Direct Shear Test of Soils Under Consolidated Drained Conditions, ASTM International, West Conshohocken, PA, 1998.

Badan Koordinasi Survey dan Pemetaan Nasional (2001) Peta Rupa Bumi Digital Indonesia Lembar 1408-234 Mungkid, Bogor, BAKOSURTANAL.

Barker, A.J. (2014) A Key for Identification of Rockforming Minerals in Thin-Section, UK, University of Southampton.

Dakshanamurty, V., Raman, V. (1973) A simple method of identifying an expansive soil, Soils and Foundations: Japanese Society of SMFE, 13. 1, March.

Dearman, W.R.(1991)Engineering Geological Mapping, Oxford, Butterworth-Heinemann Ltd.

Fisher, R.V. (1966) Rocks composed of volcanic fragments and their classification, Amsterdam, Elsevier Publishing Company.

ISRM (1981) The Complete ISRM Suggested Methods for Rock Characterization, Testing and Monitoring, Ankara, ISRM Turkish National Group.

Kementerian Energi dan Sumber Daya Mineral(2000) Keputusan Menteri Energi dan Sumber Daya Mineral Nomor 1452 K/10/MEM/2000 tentang Pedoman Teknis Pemetaan Zona Kerentanan Gerakan Tanah, Jakarta, Departemen Energi dan Sumber Daya Mineral.

Kementrian Pekerjaan Umum (2007) Pedoman Penataan Ruang Kawasan Rawan Bencana Longsor. Peraturan Menteri Pekerjaan Umum No. 22/PRT/M/2007, Jakarta, Departemen Pekerjaan Umum, Direktorat Jenderal Penataan Ruang.

Marinos, V., Marinos, P., Hoek, E. (2004) The geological strength index : applications and limitations, Athens, School of Civil Engineering, National Technical University of Athens.

Novianto, M.W.A., Djaja, Wahyudin (1997) Peta Geologi Teknik Lembar Yogyakarta, Skala 1 : 100.000, Bandung, Direktorat Geologi Tata Lingkungan.

Pusat Vulkanologi dan Mitigasi Bencana Geologi (2015) Peta Zona Kerentanan Gerakan Tanah Kota dan Kabupaten Magelang, Provinsi Jawa Tengah, Jakarta, Kementerian Energi dan Sumber Daya Mineral.

Rahardjo, W., Sukandarrumidi, Rosidi, H.M.D. (1995) Peta Geologi Lembar Yogyakarta, Skala 1 : 100.000, Bandung, Pusat Penelitian dan Pengembangan Geologi.

Saaty, T.L. (1990) How to make a decision: The Analityc Hierarchy Proces, European Journal of Operational Research 48, Pittsburgh, University of Pittsburgh.

Schmid, R. (1981) Descriptive nomenclature and classification of pyroclastic deposits and fragments: Recommendations of the IUGS Subcommision on the Systematics of Igneous Rocks, Zürich, Springer-Verlag.

Streckeisen, A., (1989) A Classification of Igneous Rocks and Glossary of Terms: Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks, Cambridge, Cambridge University Press.

Van Zuidam, R. A. (1985) Aerial PhotoInterpretation Terrain Analysis and Geomorphology Mapping, Smith Publisher The Hague, ITC.



DOI: https://doi.org/10.22146/jag.30254

Article Metrics

Abstract views : 844 | views : 643

Refbacks

  • There are currently no refbacks.


Copyright (c) 2020 Journal of Applied Geology

Journal of Applied Geology Indexed by:

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License