PERANCANGAN KONSTRUKSI PENAHAN LONGSORAN DENGAN MENGGUNAKAN ALTERNATIF KONSTRUKSI GEOTEXTILE WALL
DOI:
https://doi.org/10.51878/knowledge.v5i2.5780Keywords:
Dinding Geotekstil, Stabilitas Tanah, Kelongsoran, Geostudio 2012, PLAXIS 8.2Abstract
The collapse of the slopes and the widening of river bodies in Tepian street Tabalong district often occurs due to the high rainfall factor causing the water coming from the rain to give pressure and seep into the soil that makes the water cavity bigger, so the coherency between the grains of the soil decreases and causes the capability of the ground against shear is reduced. One of the alternatives to prevent the problem is using the Geotextile Wall design construction that serves to hold the grain of soil and slope collapse. This design requires data of water level and soil mechanics. Water elevation data is used to determine the highest water level, then soil mechanical data will be processed by manual analysis and application aid with Geostudio 2012 and PLAXIS 8.2 to obtain soil stability based on the highest water level in the form of safety factor of 1,5. With two types of heaps, the first type uses a heap of lateritic soil and the second type using a heap of granular soil. Based on the results of calculation analysis used first type model with safety factor 13,892 to overtuning, 3,612 to sliding and 6,62 to the foundation failure for manual analysis. While the safety factor with the help of the application Geostudio 2012 amounted to 2,599 against landslide and with the help of PLAXIS 8.2 application is 1,6991 to against landslide. Total cost required of Rp 4,598,372,000.00.
ABSTRAK
Keruntuhan lereng dan pelebaran badan sungai di Jalan Tepian Kabupaten Tabalong sering terjadi karena faktor curah hujan yang tinggi mengakibatkan air yang berasal dari hujan memberikan tekanan dan merembes ke dalam tanah yang membuat rongga air semakin besar, sehingga lekatan antar butir tanah berkurang dan menyebabkan kemapuan tanah melawan geser berkurang. Salah satu alternatif untuk mecegah masalah tersebut digunakan perancangan menggunakan konstruksi Geotextile Wall yang berfungsi untuk menahan butiran tanah dan keruntuhan lereng. Perancangan ini memerlukan data elevasi muka air dan mekanika tanah. Data elevasi muka air digunakan untuk mengetahui ketinggian muka air tertinggi, selanjutnya data mekanika tanah akan diolah dengan cara analisis manual dan bantuan aplikasi Geostudio 2012 serta PLAXIS 8.2 untuk memperoleh stabilitas tanah berdasarkan ketinggian muka air tertinggi berupa angka keamanan sebesar 1,5. Dengan dua tipe timbunan, tipe pertama menggunakan timbunan berupa tanah laterit dan tipe kedua menggunakan timbunan berupa tanah granular. Berdasarkan hasil analisis perhitungan digunakan permodelan tipe pertama dengan angka keamanan 13,892 terhadap guling, 3,612 terhadap geser dan 6,62 terhadap daya dukung untuk analisis manual. Sedangkan angka keamanan dengan bantuan aplikasi Geostudio 2012 sebesar 2,599 terhadap kelongsoran dan dengan bantuan aplikasi PLAXIS 8.2 sebesar 1,6991 terhadap kelongsoran. Total biaya yang diperlukan sebesar Rp 4.598.372.000,00.
References
Alawia, T., et al. (2021). Perhitungan stabilitas dan penanganan lereng (Studi kasus: Jalan Budi Utomo Baru - Simpang Tiga Dangga, Kota Kendari Sulawesi Tenggara). Media Konstruksi, 6(2), 93. https://doi.org/10.33772/jmk.v6i2.22482
Amalia, D., et al. (2018). Penerapan konsep baru cracked soils pada penanggulangan kelongsoran lereng (studi kasus: Pembangunan Gedung Reskrimsus Polda Kalimantan Timur, Balikpapan).
Amalia, D., et al. (2022). Evaluasi perkuatan eksisting bronjong pada kasus kelongsoran Jalan Cisasawi, Kecamatan Parongpong, Kabupaten Bandung Barat. Teras Jurnal: Jurnal Teknik Sipil, 12(2), 539. https://doi.org/10.29103/tj.v12i2.791
Amalia, D., et al. (2024). Analisis karakteristik tanah gambut berserat dan dampaknya terhadap infrastruktur. Teras Jurnal: Jurnal Teknik Sipil, 14(1), 68. https://doi.org/10.29103/tj.v14i1.1008
Campos, O. A. C. (2018). Landslides: Methodology to select stabilizing construction works. In Landslides - Theory, Practice and Case Studies. IntechOpen. https://doi.org/10.5772/intechopen.70797
Cornelius, D., & Primandhana, W. P. (2022). Analisis pengaruh infrastruktur jalan, listrik dan air terhadap produk domestik regional bruto. KINERJA, 19(2), 338. https://doi.org/10.30872/jkin.v19i2.10923
Gulo, E. G. W., et al. (2023). Pengaruh usia stabilisasi tanah gambut melalui bioaugmentasi oleh bakteri Pseudomonas taiwanensis. SIKLUS: Jurnal Teknik Sipil, 9(2), 135. https://doi.org/10.31849/siklus.v9i2.16064
Guritno, B., & Amalia, D. (2023). Dampak lingkungan penggunaan biopolimer sebagai perkuatan tanah dasar ramah lingkungan (studi kasus Jalan Karanggede – Juwangi). Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil, 28(1), 29. https://doi.org/10.32497/wahanats.v28i1.4559
Guritno, B., et al. (2021). Biopolymer as environmentally friendly reinforcement to overcome cracked soil problems on expansive soil: A case study at Karanggede – Juwangi Road.
Harianja, T. S., et al. (2024a). Comparison of the effectiveness of micromaterials and nanomaterials of lime as a stabilizing agent for expansive soils on the value of the plasticity index. E3S Web of Conferences, 479, 06003. https://doi.org/10.1051/e3sconf/202447906003
Harianja, T. S., et al. (2024b). Comparative analysis of laboratory unsoaked CBR values between micromaterials and limestone nanomaterials in expansive soil stabilization. Brazilian Journal of Development, 10(4), 1-13. https://doi.org/10.34117/bjdv10n4-010
Herdiana, Y., et al. (2021). Mitigasi ancaman resiko keamanan siber di masa pandemi Covid-19. Jurnal ICT: Information, Communication & Technology, 20(1), 42. https://doi.org/10.36054/jict-ikmi.v20i1.305
Hidayati, N., et al. (2021). Evaluasi dan retrofit struktur gedung beton bertulang akibat kebakaran. INERSIA: Informasi Dan Ekspose Hasil Riset Teknik Sipil Dan Arsitektur, 17(1), 57. https://doi.org/10.21831/inersia.v17i1.35888
Korobova, O., & Loshchev, V. (2020). Technology for strengthening earth mound’s foundations, reinforced with geosynthetic materials. IOP Conference Series: Materials Science and Engineering, 953(1), 012063. https://doi.org/10.1088/1757-899x/953/1/012063
Maliangkay, D. (2020). Study of landslide prone on the road of Tomohon-Tanawangko in Tomohon City. In Proceedings of the 3rd International Conference on Social Sciences (ICSS 2020). https://doi.org/10.2991/assehr.k.201014.007
Mulligan, C. N., et al. (2009). Filtration of contaminated suspended solids for the treatment of surface water. Chemosphere, 74(6), 779. https://doi.org/10.1016/j.chemosphere.2008.10.055
Panigrahi, B. S., & Pradhan, P. K. (2019). Improvement of bearing capacity of soil by using natural geotextile. International Journal of Geo-Engineering, 10(1). https://doi.org/10.1186/s40703-019-0105-7
Rozeli, C. S. (2020). Analysis of the carrying capacity of the pile foundation compared to jacking system and Pile Driving Analyzer (PDA) test. IJTI (International Journal Of Transportation And Infrastructure), 3(2), 79. https://doi.org/10.29138/ijti.v3i2.1060
Saing, Z., & Djainal, H. (2018). Effect of lime stabilization on vertical deformation of laterite Halmahera soil. IOP Conference Series: Earth and Environmental Science, 140(1), 012071. https://doi.org/10.1088/1755-1315/140/1/012071
Saputra, L. A., et al. (2023). Ancaman keamanan pada sistem informasi manajemen perusahaan. Jurnal Pendidikan Siber Nusantara, 1(2), 58. https://doi.org/10.38035/jpsn.v1i2.48
Selamat, M. R. bin, et al. (2017). Comparative characterization of the quaternary deposits of Northwest Peninsular Malaysia by wash boring and CPTU site investigation methods. AIP Conference Proceedings, 1892, 030008. https://doi.org/10.1063/1.5005674
Suratman, F. N., & Darumurti, A. (2021). Collaborative governance dalam pengelolaan ruang terbuka hijau publik (RTHP) di Kota Yogyakarta. Jurnal Pemerintahan Dan Kebijakan (JPK), 2(2), 102. https://doi.org/10.18196/jpk.v2i2.12743
Tarawneh, B., et al. (2019). Intelligent computing based formulas to predict the settlement of shallow foundations on cohesionless soils. The Open Civil Engineering Journal, 13(1), 1. https://doi.org/10.2174/1874149501913010001
Wigati, R., et al. (2020). Integrasi HEC-RAS dan GIS dalam floodplain mapping Sungai Cilemer HM 53+00 – HM 105+00. Teknika: Jurnal Sains Dan Teknologi, 16(2), 171. https://doi.org/10.36055/tjst.v16i2.9134
Zhafirah, A., & Amalia, D. (2019). Perencanaan preloading dengan penggunaan prefabricated vertical drain untuk perbaikan tanah lunak pada Jalan Tol Pejagan-Pemalang. Potensi: Jurnal Sipil Politeknik, 21(1), 10. https://doi.org/10.35313/potensi.v21i1.1314
