ANALYZING THE EFFECT OF WATER SEEPAGE AND SCOUR ON SLOPE STABILITY USING FINITE ELEMENT METHOD

Wilham George Louhenapessy; Bambang  Lareno

doi:10.28932/jts.v18i2.4272

Penulis

Wilham George Louhenapessy Institut Teknologi Calvin
Bambang Lareno Institut Teknologi Calvin

DOI:

https://doi.org/10.28932/jts.v18i2.4272

Kata Kunci:

Muka Air Tanah, Metode Elemen Hingga, Longsoran lereng, Studi parametrik, Multilaminate Model, Rayapan/Viscoplastic

Abstrak

Di setiap lereng, selalu ada kemungkinan longsor. Salah satu hipotesis yang diuji adalah pengaruh aliran air dan gerusan terhadap stabilitas lereng di lokasi yang diteliti. Inspeksi singkat dilakukan untuk mengetahui kondisi dan pengaruh sungai, selain penyelidikan tanah, untuk pengaturan tindak lanjut yang tepat. Pada lokasi longsor, aliran air berpengaruh dalam menaikkan muka air tanah sehingga dapat menurunkan kuat geser tanah. Hal ini menyebabkan faktor keamanan lereng turun di bawah angka aman. Gerusan tersebut mengganggu kestabilan lereng tetapi tidak mengurangi faktor keamanan lereng secara signifikan. Studi parametrik dipilih karena hubungannya yang kuat antara perpindahan terukur di dalam lereng, untuk memverifikasi pengukuran dan hasil analisis numerik (Methode Elemen Hingga). Simulasi studi parametrik menunjukkan bahwa model numerik yang bergantung pada waktu dapat berguna sebagai alat peramalan, termasuk berbagai kemungkinan kondisi gerusan dan non gerusan.

Unduhan

Data unduhan belum tersedia.

Referensi

Aydan, O., Ito, J., Akagi, T., Ito, T., & Sato, J. 1995. Prediction of deformation behaviour of a tunnel in squeezing rock with time-dependent characteristic. Pages 463-469 of: Pande, G.N., & Pietruszczak, S. (eds), NUMOG V, Davos, Switzerland, 1995. Balkema. 5th Int. Symp. on Numerical Models in Geomechanics.

Bingham, E.C. 1922. Fluidity and Plasticity, 1 Ed. New York: McGraw-Hill.

Briaud, Jean-Louis. 2007. Case Histories in Soil and Rock Erosion: Woodrow Wilson Bridge, Brazos River Meander, Normandy Cliffs, and New Orleans Levees - The 9th Ralph B. Peck Lecture - Prof J.L. Briaud; Holder of the Buchanan Chair Texas A&M University

Chow, V. T., Maidment, D. R. & Mays, L. W., 1988. Applied Hydrology. New York: McGraw-Hill.

Das, B. M., 1985. Principles of Geothecnical Engineering. 3rd ed. Boston: PWS Publishing Company.

De Caro, M., Crosta, G. B., Castellanza, R., Agliardi, F., Volpi, G., & Alberti, S.; 2016, 2D modelling of rockslide displacements by non-linear time dependent relationships. In Landslides and engineered slopes. Experience, theory & practice. Proc. of the 12th int. sym. on landslides (Napoli, 12-19 Jun 2016).

Handayani, T., Wulandari, S. & Wulan, A., 2014. Pengaruh Muka Air Tanah terhadap Kestabilan Lereng menggunakan GeoSlope/W 7.12. Jakarta, s.n., pp. 409-415.

Kothari, C. R., 2004. Research Methodology: Methods and Techniques. 2nd ed. New Delhi: New Age International.

Lareno, B., Louhenapessy, W.G., 2019. Site Visit to the Project Site & Discussion at site, West Java.

Louhenapessy, W.G., 2003. Finite Element Method (FEM) in rock tunnel engineering: Introduction to a New Method of Tunnel Support Design, The Proc. of Konp.Geoteknik Indonesia VI, August 2003, HATTI.

Louhenapessy, Wilham G., 2000. Analysis of Tunnel Supports using the Finite Element Method. Ph.D. thesis. Department of Civil Engineering, University of Wales Swansea, Swansea, UK (now: Swansea University)

Louhenapessy, Wilham G. and Pande, G.N. 2000. Newmo3962_2000: User’s Instruction Manual, Internal Report No.CR / 1022/ 00. Dept. of Civil Eng, Univ. of Wales Swansea.

Marhendi, T., 2018. Pengaruh Meander dan Keamanan Lereng Terhadap Kejadian Longsor di Jalan Raya Prupuk-Bumiayu (km 115+50 – 115+900). Techno, April, 19(1), pp. 007-014.

Melville, B. W., 2015. Pressure-flow scour at bridges. In: D. &. A. Cheng, ed. Scour and Erosion. London: Taylor & Francis Group, pp. 449-453.

Pande, G.N. & Williams, J.R. 1990. Numerical Methods in Rock Mechanics. Chichester: John Wiley.

Pande, G.N. & Sharma, K.G., 1983, Multilaminate model of clays – a numerical evaluation of the influence of rotation of principal stress axes. International Journal for Numerical and Analytical Methods in Geomechanics, Vol. 7, No. 4, 397-418.

Pande, G.N. & S. Pietruszczak, 2015. On Unsaturated Soil Mechanics – Personal Views on Current Research, Studia Geotechnica et Mechanica, Vol. 37, No. 3, 2015 - DOI: 10.1515/sgem-2015-0035

Panet, M. 1996. Two case-histories of tunnels through squeezing rocks. Rock Mechanics & Rock Engineering, 29 (3), 155-164.

Panet, M., & Guenot, A. 1982. Analysis of convergence behind the face of a tunnel. Pages 197—204 of: Tunnelling 82. A.A. Balkema.

Rahardjo, Harianto; A. Satyanaga and E. C. Leong. 2016. Effects of Rainfall Characteristics on the Stability of Tropical Residual Soil Slope. E3S Web of Conferences 9, 15004.

SNI Geoteknik 8460:2017 - Persyaratan perancangan geoteknik. Badan Standardisasi Nasional.

Satyanaga, A.; M. Wijaya; Q. Zhai; Sung-Woo Moon; J. Pu and J.R., 2021. Stability and Consolidation of Sediment Tailings Incorporating Unsaturated Soil Mechanics, Fluids 2021, 6, 423. https://doi.org/10.3390/fluids6120423

G. Swoboda; W. Mertz; G. Beer. 1987. Rheological analysis of tunnel excavations by means of coupled finite element (FEM) – boundary element (BEM) analysis; International Journal for Numerical and Analytical Methods in Geomechanics Vol. 11; Issue #2.

Zienkiewicz, O.C., & Cormeau, I.C. 1974. Visco-plasticity - Plasticity and Creep in Elastic Solids - A Unified Numerical Solution Approach. Int. J. for Numerical Meth. in Engineering, 8, 821-845.

Zienkiewicz, O.C., & Pande, G.N. 1977. Time dependent multi-laminate model of rocks - a numerical study of deformation and failure of rock masses. Int. J. Numerical and Analytical Meth. in Geomech. 219-247