ANALISIS STABILITAS LERENG MENGGUNAKAN BAMBOO CRIB WALL
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Abstrak
Slope stability is a critical aspect of geotechnical engineering, particularly on steep terrains prone to landslides. This study analyzes the effectiveness of Bamboo Crib Walls as an eco-friendly and economical reinforcement alternative by comparing single-trap and multi-trap (terraced) designs. Stability analysis was conducted using the Limit Equilibrium Method on a 14-meter high slope with a 60° inclination in Tambakmerang Village, Wonogiri. Simulation results showed the existing slope has a Safety Factor (SF) of 1.366. While categorized as relatively stable, it fails to meet the SNI 8460:2017 standard for permanent slopes with high uncertainty, which requires an SF ≥ 2.0. The single-trap design (H = 4 m, B = 3 m) increased the SF to 1.571, yet remained below the minimum national requirement. In contrast, the terraced design (2-trap) with identical dimensions achieved optimal stability with an SF of 2.823, significantly exceeding the safety standard. This study concludes that the terraced Bamboo Crib Wall is the most effective solution, as the terracing system provides superior load distribution and retention compared to the single-trap model in resisting driving forces on steep slopes.
Abstrak
Stabilitas lereng merupakan aspek krusial dalam rekayasa geoteknik, terutama pada topografi curam yang rentan terhadap kelongsoran. Penelitian ini bertujuan menganalisis efektivitas Bamboo Crib Wall sebagai alternatif perkuatan ramah lingkungan dan ekonomis dengan membandingkan desain tunggal (single-trap) dan bertingkat (multi-trap). Analisis stabilitas dilakukan menggunakan Metode Kesetimbangan Batas pada lereng setinggi 14 meter dengan sudut kemiringan 60° di Desa Tambakmerang, Wonogiri. Hasil simulasi menunjukkan bahwa lereng eksisting memiliki Faktor Keamanan (FK) sebesar 1,366. Kondisi ini dikategorikan relatif stabil namun belum memenuhi standar SNI 8460:2017 untuk lereng permanen dengan tingkat ketidakpastian tinggi yang mensyaratkan FK ≥ 2,0. Penerapan Bamboo Crib Wall desain single-trap (H = 4 m, B = 3 m) meningkatkan FK menjadi 1,571, tetapi masih di bawah persyaratan minimum standar nasional. Sementara itu, variasi desain bertingkat (2-trap) menghasilkan stabilitas paling optimal dengan nilai FK sebesar 2,823, yang telah jauh melampaui batas aman minimum. Penelitian ini menyimpulkan bahwa modifikasi Bamboo Crib Wall model bertingkat adalah solusi paling efektif karena sistem terasering memberikan distribusi beban dan retensi yang lebih baik dibandingkan model tunggal dalam menahan gaya penggerak pada lereng curam.
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Referensi
Abdela, H., Ayana, T., Melese, T., & Abebe, D. (2025). Vegetation hydrology and slope interaction under variable infiltration: A state-of-the-art review. Journal of Infrastructure Preservation and Resilience, 6(1), Article 9. https://doi.org/10.1186/s43065-025-00152-0
Abiezer, D., & Prihatiningsih, A. (2022). Analisis desain dinding penahan tanah dengan waste material. JMTS: Jurnal Mitra Teknik Sipil, 5(4), 767-780. https://doi.org/10.24912/jmts.v5i4.20272
Acharya, M. S. (2018). Analytical approach to design vegetative crib walls. Geotechnical and Geological Engineering, 36(1), 483-496. https://doi.org/10.1007/s10706-017-0342-5
Acharya, M. S. (2020). Bamboo crib wall: A sustainable soil bioengineering method to stabilize slopes in Nepal. Journal of Development Innovations, 4(1), 99-118. https://www.karmaquest.org/journal/index.php/ILGDI/article/view/56
Al-Shukur, A. K., & Al-Rammah, A. M. (2017). Optimum design of gravity wall founded on specially random soil subjected to earthquake load. Journal of Kerbala University, 15(2), 212-214.
Ardhyananta, H., Sulistijono, & Susilo, G. H. (2012). Karakterisasi dan sifat mekanik bambu ori dan bambu petung. Seminar Pascasarjana XII. Institut Teknologi Sepuluh Nopember.
Badan Standardisasi Nasional. (2017). Persyaratan perancangan geoteknik (SNI 8460:2017).
Bowles, J. E. (1989). Sifat-sifat fisik dan geoteknis tanah (J. K. Hainim, Penerjemah). Erlangga.
Budi, A. S., Sambowo, K. A., & Kurniawati, I. (2013). Model balok beton bertulangan bambu sebagai pengganti tulangan baja. Prosiding Konferensi Nasional Teknik Sipil 7.
Das, B. M. (2010). Principles of geotechnical engineering (Vol. 7th ed.). Cengage Learning.
Gabrieli, F., Allievi, L., Mazzorana, B., & Cosma, M. (2021). Design and temporal issues in soil bioengineering structures for the stabilisation of shallow soil movements. Ecological Engineering, 169, Article 106313. https://doi.org/10.1016/j.ecoleng.2021.106313
Gouw, T. L. (2012). Analisa stabilitas lereng dengan limit equilibrium dan finite element method.
Hardiyatmo, H. C. (1995). Mekanika Tanah II. Gadjah Mada University Press.
Huang, Y. H. (2014). Slope stability analysis by the limit equilibrium method. American Society of Civil Engineers.
Irawati, I. S., & Saputra, A. (2012). Analisis statistik sifat mekanika bambu petung. Prosiding Simposium Nasional Rekayasa dan Budidaya Bambu I.
Judawisastra, H., & Sitohang, U. A. (2016). Karakteristik sifat tarik serat bambu petung (Dendrocalamus asper). Program Studi Teknik Material.
Logeswaran, J., & Kulathilaka, S. A. S. (2024). Investigation of suitable methods to protect main roads adjacent to water bodies: A case study from Uva Province, Sri Lanka. Engineer: Journal of the Institution of Engineers, Sri Lanka, 57(1), 43-54. https://doi.org/10.4038/engineer.v57i1.7574
Malanit, P. (2009). The structural manufacture of oriented strand board made from zephyr strand of bamboos [Doctoral dissertation, University of Hamburg].
Mickovski, S. B., Stokes, A., van Beek, R., Ghestem, M., & Fourcaud, T. (2022). A review of bioengineering techniques for slope stability in Malaysia. International Journal of Environmental Science and Technology, 19(12), 12861-12878. https://doi.org/10.1007/s13762-022-04235-3
Morisco. (1999). Rekayasa bambu. Penerbit Nafiri.
Nalgire, P., Kolekar, Y., Patil, A., & Kadam, M. (2020). Slope stability analysis by GeoSlope. ResearchGate. https://www.researchgate.net/publication/341383564
Oka, G. M. (2009). Bambu sebagai Bahan Komposit. Denpasar: Universitas Udayana.
Sagita, L., Tjahjono, T., & Wahyudi, S. (2017). Analisis stabilitas dan biaya perencanaan dinding penahan tanah tipe bronjong di Sungai Ciliwung. Komposit: Jurnal Ilmiah Teknik Sipil, 1(1), 1-10.
Schröder, S. (2010). Dendrocalamus asper - Rough bamboo. Guadua Bamboo. https://www.guaduabamboo.com/blog/dendrocalamus-asper
Singh, C., Yeshi, P., Phuntsho, S., & Gurung, D. B. (2025). Ecological restoration of fragile eastern Himalayan landscapes through bamboo bioengineering—lessons from Bhutan. Trees, Forests and People, 22, Article 101028. https://doi.org/10.1016/j.tfp.2024.101028
Surendro, B. (2015). Rekayasa geoteknik lereng. Yogyakarta: Graha Ilmu.
Świtała, B. M., & Wu, W. (2025). Numerical study on stability of slope using geo-technical software. Proceedings of International Conference on Sustainable Infrastructure.
Tardio, G., Mickovski, S. B., Rauch, H. P., Fernandes, J. P., & Acharya, M. S. (2018). The use of bamboo for erosion control and slope stabilization: Soil bioengineering works. Dalam A. Khalil (Ed.), 119-142. https://doi.org/10.5772/intechopen.75626
Zayadi, R., Andayani, S., & Indrawati, E. (2023). Pemanfaatan tanaman bambu dan kaliandra untuk perkuatan lereng sebagai upaya mitigasi terhadap longsor di Desa Sinarresmi Sukabumi. PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat, 8(4), 514-522. https://doi.org/10.33084/pengabdianmu.v8i4.4542