Kurniawan, Ichvan Danny (2025) Analisis Pengaruh Beban Gempa terhadap Angka Keamanan Alternatif Desain Penanganan Lokasi Longsor Ruas Jalan Batas Pidie/Aceh Besar - Bts. Kota Sigli. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Ruas jalan Batas Pidie/Aceh Besar – Bts. Kota Sigli merupakan jalan arteri primer yang memiliki peran sangat penting dalam menghubungkan Ibukota Provinsi Aceh dengan Ibukota Provinsi Sumatera Utara. Kondisi longsor yang terjadi pada lokasi STA 0+560 dapat disebabkan oleh berbagai faktor, salah satunya adalah gempa. Provinsi Aceh adalah salah satu provinsi dengan frekuensi gempa yang cukup tinggi, dan beban gempa merupakan salah satu faktor yang dapat mempengaruhi stabilitas lereng. Oleh karena itu, diperkirakan gempa yang terjadi dapat mempengaruhi stabilitas lereng yang ditinjau. Dalam perencanaan desain alternatif yang digunakan mengacu pada SNI 8460:2017. Selanjutnya, dilakukan simulasi menggunakan program bantu PLAXIS 2D untuk mengetahui stabilitas lereng yang telah diperkuat. Untuk mengetahui pengaruh beban gempa terhadap angka keamanan penanganan desain existing dan desain alternatif, digunakan analisis dengan metode Pseudostatik serta variasi Beban Gempa dengan PGA sebesar 0.4g, 0.45g, dan 0.5g, 0.55g dan 0.6g. Dari hasil analisis permodelan lereng sebelum longsor menunjukkan bahwa beban gempa mempengaruhi stabilitas lereng yang terbukti pada kondisi beban gempa lereng mengalami kegagalan analisis. Selain itu dari hasil penelitian perbandingan angka keamanan alternatif desain menunjukkan bahwa penanganan mortar busa dengan bored pile memiliki nilai angka keamanan tertinggi pada kondisi beban gempa dengan hasil angka keamanan PGA 0.4g sebesar 1.285, PGA 0.45g sebesar 1.239, PGA 0.5g sebesar 1.222, PGA 0.55g sebesar 1.161 dan PGA 0.6g sebesar 1.121. Dari hasil yang ada menunjukkan bahwa jenis penanganan yang diberikan akan memberikan respon yang berbeda pada tanah dibawahnya, baik antara kondisi beban statis maupun beban gempa pseudostatik.
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The Batas Pidie/Aceh Besar - Bts. Kota Sigli is a primary arterial road that has a very important role in connecting the Capital of Aceh Province with the Capital of North Sumatra Province. The landslide conditions that occurred at the STA 0+560 location can be caused by various factors, one of which is an earthquake. Aceh Province is one of the provinces with a fairly high earthquake frequency, and earthquake loads are one of the factors that can affect slope stability. Therefore, it is estimated that the earthquake that occurred can affect the stability of the slope being reviewed. In the planning of the alternative design used, it refers to SNI 8460:2017. Furthermore, a simulation was carried out using the PLAXIS 2D assistance program to determine the stability of the slope that had been strengthened. To determine the effect of earthquake loads on the safety factor for handling existing designs and alternative designs, an analysis was used with the Pseudostatic method and variations in Earthquake Loads with PGA of 0.4g, 0.45g, and 0.5g, 0.55g and 0.6g. From the results of the slope modeling analysis before the landslide, it shows that the earthquake load affects the stability of the slope which is proven in the earthquake load conditions the slope experiences analysis failure. In addition, the results of the comparative study of alternative design safety figures show that the handling of foam mortar with bored piles has the highest safety figure value in earthquake load conditions with the results of the PGA 0.4g safety figure of 1.285, PGA 0.45g of 1.239, PGA 0.5g of 1.222, PGA 0.55g of 1.161 and PGA 0.6g of 1.121. From the existing results, it shows that the type of treatment given will provide a different response to the soil below it, both between static load conditions and pseudostatic earthquake loads.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Slope, Seismic Load, Existing Design, Alternative Design, Safety Factor, Lereng, Beban Gempa, Desain Existing, Desain Alternatif, Angka Keamanan |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering) T Technology > TA Engineering (General). Civil engineering (General) > TA749 Soil stabilization T Technology > TA Engineering (General). Civil engineering (General) > TA760+ Retaining walls |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis |
| Depositing User: | Ichvan Danny Kurniawan |
| Date Deposited: | 24 Jan 2025 06:22 |
| Last Modified: | 24 Jan 2025 06:22 |
| URI: | http://repository.its.ac.id/id/eprint/116799 |
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