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      Perbandingan Metode Desain Terowongan Segmental Pada Kondisi Tanah Lunak (Studi Kasus: Proyek Tunneling di Jakarta).

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      Date
      2023
      Author
      Nugraha, Bima Rizky
      Fauzan, Muhammad
      Ghani, Masrur Abdull Hamid
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      Abstract
      Terowongan menjadi struktur bawah tanah yang banyak digunakan untuk memudahkan mobilitas kota metropolis. Metode desain empiris seperti continuum model oleh Miur Wood dan two‐rings beam‐spring model sering digunakan untuk analisis terowongan. Penelitian ini bertujuan membandingkan antara desain tunnel segmen dengan dua pendekatan yaitu continuum model oleh Muir Wood dan two-rings beam-spring model. Penelitian dilawali dengan studi Pustaka dan pengumpulan data, dilanjutkan dengan analisis kedua metode, membandingkannya, serta menganalisis metode yang optimum. Metode continuum model menunjukkan kondisi batas terbesar pada ULS-F 3. Metode two-rings beam-spring dengan konstanta pegas yang telah diiterasi menyerupai hasil monitoring memiliki gaya dalam terbesar sebesar -1.360,831 kN dan momen lentur sebesar 160,173 kNm untuk momen positif dan -156,520 kNm untuk momen negatif. Metode-metode yang digunakan masih didalam kurva P-Mn. Hasil analisis metode two-rings beam-spring lebih kecil dari metode continuum model dan mendekati kondisi sesungguhnya di lapangan.
       
      The tunnel became an underground structure that was widely used to facilitate the mobility of the metropolis. Empirical design methods such as the continuum model by Miur Wood and the two‐rings beam‐spring model are often used for tunnel analysis. This study aims to compare the tunnel segment design with two approaches, the continuum model by Muir Wood and the two-rings beam-spring model. The research begins with literature study and data collection, followed by analysis of both methods, comparing them, and analyzing the optimal methods. The continuum model method shows the greatest boundary condition in ULS-F 3. The two-rings beam-spring method with spring constant that has been adjusted to resemble the monitoring results has the largest inner force of -1.360,831 kN and the bending moment of 160.173 kNm for positive moments and -156.520 kNm for negative moments. The methods used are still in the P-Mn curve. The results of the analysis of the two-rings beam-spring method are smaller than the continuum model method and are close to the actual conditions.
       
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      http://repository.ipb.ac.id/handle/123456789/121589
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      • UT - Civil and Environmental Engineering [1042]

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