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All Journal Jurnal Serambi Engineering Indonesian Journal of Construction Engineering and Sustainable Development
Desti Santi Pratiwi
Institut Teknologi Nasional
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Environmental Science

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Analisis Stabilitas Lereng dengan Perkuatan Soil nailing dikombinasikan dengan Macmat HS dan Shotcrete menggunakan Metode Numerik Plaxis 2D Yuki Achmad Yakin; Desti Santi Pratiwi; Favian Alif Nur Javier
Jurnal Serambi Engineering Vol 7, No 2 (2022): April 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i2.4066

Abstract

Lereng adalah suatu bidang pada permukaan bumi yang terbentuk karena kemiringan sudut tertentu terhadap bidang horizontal. Lereng dapat diklasifikasikan menjadi lereng alami dan lereng buatan. Stabilitas lereng memiliki peran penting dalam upaya keselamatan manusia dan kekuatan bangunan yang akan dibangun di sekitar wilayah lereng. Soil nailing merupakan suatu bentuk perkuatan dalam upaya untuk meningkatkan stabilitas lereng guna menghindari potensi longsor. Soil nailing pada umumnya dikombinasikan dengan surface protection untuk mencegah erosi dan melindungi lereng yang sudah diperkuat agar tidak terjadi keruntuhan. Penelitian ini bertujuan untuk mengkaji pengaruh kemiringan pada lereng yang diperkuat setinggi 5meter dari 20 meter kemiringan total terhadap stabilitas lereng menggunakan PLAXIS 2D. Hasil analisis menunjukan alternatif kemiringan lereng 1V:1H sudah memenuhi kondisi aman sehingga tidak perlu dilakukan perkuatan sedangkan lereng dengan alternatif kemiringan 2V:1H, 3V:1H dan 4V:1H diperlukan perkuatan soil nailing untuk meningkatkan nilai faktor keamanan sehingga memenuhi kondisi aman. Penggunaan Macmat HS dan Shotcrete tidak berdampak besar terhadap nilai faktor keamanan. Penggunaan Shotcrete menaikkan nilai faktor keamanan lebih besar dibandingkan Macmat HS karena perbedaan tingkat kekakuan dari kedua material tersebut.
Analisis Pengaruh Lapisan Saprolite pada Timbunan di Atas Tanah Lunak Menggunakan Metode Numerik (PLAXIS 2D) Yuki Achmad Yakin; Desti Santi Pratiwi; Arinal Ghalibaldi Gazali
Jurnal Serambi Engineering Vol 7, No 3 (2022): Juli 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i3.4681

Abstract

Embankment within soil causes changes in tension within it, which causes deformation to occur and results in stabilization in the soil. The type of soil, method of filling, and degree of density can affect the soil’s technical properties. When embankment work forming a new slope, it is important to analyze the slope’s stability. This study analyzes the effect of elevation, slope, saprolite layer thickness, and depth of replacements using PLAXIS 2D software. The results of the analysis show there are effects from elevation, namely the higher the embankment the greater the decrease and the smaller the safety factor becomes. The slope also has effects and influence, that is the steeper the embankment, the smaller the decrease and the greater the safety factor. Furthermore, there are effects from the replacement’s depth. Namely the thicker the replacement depth results in the decrease in the Short-Term condition becoming larger and the decrease in the Long-Term condition getting smaller.
Analisis Stabilitas Lereng Menggunakan Model Numerik 3 Dimensi Studi Kasus Lereng Sekolah Terpadu di Kecamatan Jonggol Bogor desti santi pratiwi; Nirpan Lesmana; Indra Noer Hamdhan
INDONESIAN JOURNAL OF CONSTRUCTION ENGINEERING AND SUSTAINABLE DEVELOPMENT (CESD) Vol. 3 No. 2 (2020): INDONESIAN JOURNAL OF CONSTRUCTION ENGINEERING AND SUSTAINABLE DEVELOPMENT (CES
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (796.892 KB) | DOI: 10.25105/cesd.v3i2.8323

Abstract

Slope is the surface of the earth that forms an inclination angle, that it has the potential for landslides. Landslide will be occurred by several factors, such as steep slopes, large loads, high rain intensity, poor drainage systems, high ground water levels and others. Therefore, slope stability analysis is needed to ensured that the slopes are safe from landslides potential which injured many people. As for the prevention and handling of landslides that can be done, such as changing the geometry of the slopes, improving the drainage system, providing slope reinforcement such as gabions, retaining walls, poles and others. This study aims to determine the effect of water level on the stability of the existing slope and which has been reinforced by bored piles using a 3-dimensional numerical model. The case study reviewed is the slope in the Integrated School in Bendungan Village, Jonggol District, Bogor Regency. The results of the analysis show that in the existing conditions with a normal water level, the value of the safety factor (SF) is 1.16, and when the water level is critical, the SF value is 1.14. Whereas in slope conditions with the reinforcement of the bored pile, the analysis results show that the SF value with normal water level is 2.33 and when the water level is critical is 1.58. The results of the analysis with the reinforcement of the drill pile show that the SF value is more than 1.5 so that the slope is safe from landslide based on SNI 8460 of 2017.
Co-Authors Arinal Ghalibaldi Gazali Favian Alif Nur Javier Hamdhan, Indra Noer Nirpan Lesmana Yuki Achmad Yakin