SLOPE STABILITY ASSESSMENT UNDER THE EFFECT OF ANTECEDENT RAINFALL-A CASE STUDY AT TELUK BAHANG PENANG
DOI:
https://doi.org/10.11113/jurnalteknologi.v87.22527Abstract
Penang Island is one of the districts in Peninsular Malaysia that is highly subjected to frequent landslides. The selected study area is Jalan Teluk Bahang, located at Penang Island, Malaysia. This area has experienced a high frequency of shallow landslides in recent years. Jalan Teluk Bahang is a vital thoroughfare, connecting the city centre to Teluk Bahang. Understanding the annual rainfall pattern in Jalan Teluk Bahang area under different intensities and durations is crucial to establish a correlation between landslide events and rainfall infiltration. The study collected rainfall data for Jalan Teluk Bahang area from Department of Irrigation and Drainage Malaysia (JPS Malaysia). The slope was modelled for transient seepage and stability analysis based on geometrical information and soil parameters obtained from the subsurface investigation (SI) data. A transient numerical seepage analysis was conducted using SEEP/W software. The resulting pore-water pressure distributions were then utilised in SLOPE/W software for slope stability analysis. The analysis identified that, the prolonged low intensity of rainfall is a primary triggering factor for slope failure in the study area, with cumulative 30 days antecedent rainfall played a pivotal role. The integrated use of SEEP/W and SLOPE/W software facilitated a comprehensive understanding of the changing pore-water pressure conditions and the subsequent decrease in slope stability leading to landslides. This insight is supported by the gradual decrease in factor of safety (FOS) observed in the stability analysis leading up to landslide occurrences.
References
Abdul Rahman, H., & Jabil, M. 2017. Landslide Disaster in Malaysia: An Overview. Health and the Environment Journal. 8(1): 58–71. https://doi.org/10.24940/ijird/2019/v8/i6/jun19058.
Ahmad, F., & Hastuty, I. P. 2023. Study of Slope Failure in Two Regions: A Comparative Study between Penang Island Malaysia and North Sumatera Indonesia. Smart Geotechnics for Smart Societies. 147–154. https://doi.org/10.1201/9781003299127-13.
Singh, G., Abdul Rahman, M. A. B. H., & bin Zulkipli, M. S. 2023. An Emergency and Mass Casualty Incident Response in the Jalan Batang Kali-Jalan Genting Highlands Malaysia Landslide 2022: A Case Report and Strategies to Improve. International Journal of Management and Human Sciences. 07(01): 33–40. https://doi.org/10.31674/ijmhs.2023.v07i01.005.
Tay, L. T., Alkhasawneh, M. S., Lateh, H., Hossain, K., & Kamil, A. A. 2014. Landslide Hazard Mapping of Penang Island Using Poisson Distribution with Dominant Factors. Journal of Civil Engineering Research. 2014(3A): 72–77. https://doi.org/10.5923/c.jce.201402.12.
Tay, L. T., Alkhasawneh, M. S., Ngah, U. K., & Lateh, H. 2015. Landslide Hazard Mapping with Selected Dominant Factors: A Study Case of Penang Island, Malaysia. AIP Conference Proceedings. 1660(May). https://doi.org/10.1063/1.4915868.
Wu, L., & Zhou, J. 2023. Slope Stability Analysis based on Analytical and Numerical Solutions. In Rainfall Infiltration in Unsaturated Soil Slope Failure (pp. 105–130). Springer Nature Singapore. https://doi.org/10.1007/978-981-19-9737-2_5.
Guzzetti, F., Peruccacci, S., Rossi, M., & Stark, C. P. 2008. The Rainfall Intensity–duration Control of Shallow Landslides and Debris Flows: An Update. Landslides. 5(1): 3–17. https://doi.org/10.1007/s10346-007-0112-1.
Dikshit, A., Sarkar, R., Pradhan, B., Segoni, S., & Alamri, A. M. 2020. Rainfall Induced Landslide Studies in Indian Himalayan Region: A Critical Review. Applied Sciences (Switzerland). 10(7). https://doi.org/10.3390/app10072466.
Shrestha, S., Pradhan, P. M., & Shrestha, H. K. 2023. Assessment of Rainfall-induced Shallow Landslides in Kavre District, Nepal. SCITECH Nepal. 17(1): 84–90. https://doi.org/10.3126/scitech.v17i1.60493.
Nanehkaran, Y. A., Licai, Z., Chengyong, J., Chen, J., Anwar, S., Azarafza, M., & Derakhshani, R. 2023. Comparative Analysis for Slope Stability by Using Machine Learning Methods. Applied Sciences (Switzerland). 13(3): 1–14. https://doi.org/10.3390/app13031555.
Amin, M. N., Umair Ashfaq, M., Mujtaba, H., Ehsan, S., Khan, K., & Faraz, M. I. 2022. Computer-Aided Slope Stability Analysis of a Landslide—A Case Study of Jhika Gali Landslide in Pakistan. Sustainability (Switzerland). 14(20). https://doi.org/10.3390/su142012954.
Arya, I., Wiraga, I., Dwipa, I., Ramia, I., & Pramana, I. 2023. Rock Slope Stability Analysis in Melasti Beach Area: Ungasan, Bali. International Research Journal of Engineering, IT & Scientific Research. 9(3): 1392–1396. https://doi.org/10.5220/0010966000003260.
Huang, F., Xiong, H., Chen, S., Lv, Z., Huang, J., Chang, Z., & Catani, F. 2023. Slope Stability Prediction based on a Long Short-term Memory Neural Network: Comparisons with Convolutional Neural Networks, Support Vector Machines and Random Forest Models. International Journal of Coal Science and Technology. 10(1). https://doi.org/10.1007/s40789-023-00579-4.
Idrus, J., Hamzah, N., Ramli, R., Md Nujid, M., & Sadikon, S. F. 2023. Enhancing Slope Stability with Different Slope Stabilization Measures: A Case Study using SLOPE/W Software. Jurnal Kejuruteraan. 35(6): 1427–1434. https://doi.org/10.17576/jkukm-2023-35(6)-15.
Ishak, M. F., & Zaini, M. S. I. 2018. Physical Analysis Work for Slope Stability at Shah Alam, Selangor. Journal of Physics: Conference Series. 995(1). https://doi.org/10.1088/1742-6596/995/1/012064.
Ismail, N. I., Yaacob, W. Z., & Ali, N. A. 2019. Slope Stability Analysis at Hilly Areas of Kuala Lumpur, Malaysia. International Journal of Engineering and Technology. 11(5): 310–315. https://doi.org/10.7763/ijet.2019.v11.1167.
Jasim M. Abbas. 2017. Slope Stability Analysis of an Earth Dam. Diyala Journal of Engineering Sciences. 10(1): 106–117. https://doi.org/10.24237/djes.2017.10110.
Jyothi, K. B., & Singh, U. K. 2023. Static and Pseudo-static Stability Analysis of Right Earthen Embankment of Nagarjuna Sagar Dam by Geostudio. E3S Web of Conferences. 391. https://doi.org/10.1051/e3sconf/202339101018.
Koffi J. Agbelele, Ernesto C. Houehanou, Marx Ferdinand Ahlinhan, Abdoul W. Ali, & Houngan Comlan Aristide. 2023. Assessment of Slope Stability by the Fellenius Slice Method: Analytical and Numerical Approach. World Journal of Advanced Research and Reviews. 18(2): 1205–1214. https://doi.org/10.30574/wjarr.2023.18.2.0874.
Malik, M. K., & R. Karim, I. 2021. Slope Stability Analysis of Haditha Dam after Earthquake using Geo-Studio Software. Engineering and Technology Journal. 39(4A): 599–613. https://doi.org/10.30684/etj.v39i4a.1909.
Miranda da Silva, E., Carlos da Silva Porto Neto, J., Mareco da Silva, M., Marques dos Santos, R., & Pereira Lima, T. 2023. Stability Analysis of Talude of Areal Morro Branco by Simulating Geoslope Software. Seven Editora, SE-Articles. https://sevenpublicacoes.com.br/index.php/editora/article/view/1003.
Siang, L. K., Mazlan, S. A., Hasbollah, D. Z. A., Md Dan @ Azlan, M. F., Khalid, M. A., Keat Heng, M. G., & Basri, N. H. 2023. Back Analysis and Potential Remedial Approach for Failure Slope at Bukit Nanas, Kuala Lumpur. Journal of Sustainable Underground Exploration. 3(2): 1–6. https://doi.org/10.30880/jsue.2023.03.02.001.
Deka, A., Daulagupu, R., Brahma, H., Lodger, H., & Dutta, D. 2020. Effect of Antecedent Rainfall on Slope Stability-A Case Study of Haflong Hill, North East India. Journal of the Geological Society of India. 96(4): 394–398. https://doi.org/10.1007/s12594-020-1568-z.
Mohamed Yusof, M. K. T., A Rashid, A. S., Abdul Khanan, M. F., Abdul Rahman, M. Z., Abdul Manan, W. A., Kalatehjari, R., & Dehghanbanadaki, A. 2024. Assessing the Impact of RCP4.5 and RCP8.5 Scenarios on Landslide Susceptibility Mapping using Support Vector Machine: A Case Study of Penang Island, Malaysia. Physics and Chemistry of the Earth, Parts A/B/C. 133: 103496. https://doi.org/https://doi.org/10.1016/j.pce.2023.103496.
Look, B. G. 2014. Handbook of Geotechnical Investigation and Design Tables, Second Edition. In Handbook of Geotechnical Investigation and Design Tables, Second Edition. https://doi.org/10.1201/b16520.
Lee, M. L., Ng, K. Y., Huang, Y. F., & Li, W. C. 2014. Rainfall-induced Landslides in Hulu Kelang Area, Malaysia. Natural Hazards. 70(1): 353–375. https://doi.org/10.1007/s11069-013-0814-8.
Mukhtar, A., Yusoff, M. Z., & Ching, N. K. 2018. An Empirical Estimation of Underground Thermal Performance for Malaysian Climate. Journal of Physics: Conference Series. 949(1). https://doi.org/10.1088/1742-6596/949/1/012011.
METMalaysia - Malaysia’s Climate. (n.d.). Retrieved March 4, 2024, from https://www.met.gov.my/en/pendidikan/iklim-malaysia/#Evaporation.
JKR. 2010. JKR/21500/0011/10 Guidelines for Slope Design. JKR 21500: January 2010.
Kim, S. W., Chun, K. W., Kim, M., Catani, F., Choi, B., & Seo, J. Il. 2021. Effect of Antecedent Rainfall Conditions and Their Variations on Shallow Landslide-triggering Rainfall Thresholds in South Korea. Landslides. 18(2): 569–582. https://doi.org/10.1007/s10346-020-01505-4.
Martino, S., Marmoni, G. M., Fiorucci, M., Ceci, A. F., Discenza, M. E., Rouhi, J., & Tedoradze, D. 2022. Role of Antecedent Rainfall in the Earthquake-Triggered Shallow Landslides Involving Unsaturated Slope Covers. Applied Sciences (Switzerland). 12(6). https://doi.org/10.3390/app12062917.
Mukhlisin, M., & Taha, M. R. 2012. Numerical Model of Antecedent Rainfall Effect on Slope Stability at a Hillslope of Weathered Granitic Soil Formation. Journal of the Geological Society of India. 79(5): 525–531. https://doi.org/10.1007/s12594-012-0077-0.
Rahardjo, H., Leong, E. C., & Rezaur, R. B. 2008. Effect of Antecedent Rainfall on Pore-water Pressure Distribution Characteristics in Residual Soil Slopes under Tropical Rainfall. Hydrological Processes. 22(4): 506–523. https://doi.org/https://doi.org/10.1002/hyp.6880.
Rahardjo, H., Li, X. W., Toll, D. G., & Leong, E. C. 2001. The Effect of Antecedent Rainfall on Slope Stability. Geotechnical & Geological Engineering. 19(3): 371–399. https://doi.org/10.1023/A:1013129725263.
Schilirò, L., Marmoni, G. M., Fiorucci, M., Pecci, M., & Mugnozza, G. S. 2023. Preliminary Insights from Hydrological Field Monitoring for the Evaluation of Landslide Triggering Conditions Over Large Areas. Natural Hazards. 118(2): 1401–1426. https://doi.org/10.1007/s11069-023-06064-0.
Tang, D., Li, D.-Q., & Cao, Z.-J. 2017. Slope Stability Analysis in the Three Gorges Reservoir Area Considering Effect of Antecedent Rainfall. Georisk: Assessment and Management of Risk for Engineered Systems and Geohazards. 11(2): 161–172. https://doi.org/10.1080/17499518.2016.1193205.
Teerametatiparat, T., Chinkulkijniwat, A., & Yubonchit, S. 2017. Influences of Rainfall on Shallow Slope Failures BT - Advancing Culture of Living with Landslides. M. Mikoš, N. Casagli, Y. Yin, & K. Sassa (Eds.). 201–206. Springer International Publishing.
Mukhlisin, M., Matlan, S. J., Ahlan, M. J., & Taha, M. R. 2015. Analysis of Rainfall Effect to Slope Stability in Ulu Klang, Malaysia. Jurnal Teknologi. 72(3): 15–21. https://doi.org/10.11113/jt.v72.4005.
Abd, I. A., Fattah, M. Y., & Mekkiyah, H. 2020. Relationship between the Matric Suction and the Shear Strength in Unsaturated Soil. Case Studies in Construction Materials. 13(October): e00441. https://doi.org/10.1016/j.cscm.2020.e00441.
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