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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Teknisia Prokons: Jurnal Teknik Sipil Jurnal Teknik Sipil Cendekia (JTSC)
Artati, Hanindya Kusuma
Department Of Civil Engineering, Universitas Islam Indonesia
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Materials Science & Nanotechnology

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ANALISIS POTENSI LIKUIFAKSI AKIBAT GEMPA BUMI BERDASARKAN DATA INSITU TEST MENGGUNAKAN METODE PROBABILITAS Ahmad Latiful Ansori; Hanindya Kusuma Artati
Prokons: Jurnal Teknik Sipil Vol 15, No 2 (2021): Agustus 2021
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v15i2.349

Abstract

Abstract The occurrence of an earthquake will cause damage to the soil structure which is called liquefaction. One of the damage to the soil structure is liquefaction. This event will affect the structure above, especially if it occurs in saturated sandy soils. The purpose of this study is to analyze the probability liquefaction based on N-SPT, and to analyze the relationship between soil and seismic parameters with the probability of liquefaction. The calculation method of liquefaction potential analysis begin by using equations suggested by the National Center for Earthquake Engineering Research (NCEER) USA based on N-SPT data to determine the liquefaction potential deterministically. Then continued with the probability calculation method proposed by Haldar & Tang (1979), Hwang et al (2004), Sonmez & Gokceoglu (2005), and Juang et al (2004). The results of the analysis show that the research location is a potential liquefaction area with a level of danger that is almost certain that it will liquefy or a probability of above 85%. The relationship of soil parameters on the probability is of N-SPT value correlated with a decrease in the probability value of liquefaction. The probability of liquefaction above 85% occurs in the N-SPT value range of 0-20, while below 85% occurs at the N-SPT value of 20-50. The increase in the value of the earthquake magnitude correlates with the high probability value of liquefaction. Keywords : Liquefaction, N-SPT data, Probability, Earthquake magnitude
PENERAPAN KONSEP ECO-SETTLEMENT PADA SARANA PRASARANA INFRASTRUKTUR PENDUKUNG PERMUKIMAN HUNTAP (STUDI KASUS : HUNTAP PAGERJURANG DAN HUNTAP KARANGKENDAL KECAMATAN CANGKRINGAN) Hanindya Kusuma Artati; Albani Musyafa
TEKNISIA Vol. XX, No. 2, November 2015
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

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Abstract

Eco-settlement infrastructure planning is a concept that puts the balance of the ecosystem at a settlement. This concept is urged to apply to residential areas, especially in the area of the catchment. Huntap as a settlement area also need to apply the concept of eco-settlement. After the eruption of Merapi, Huntap development is mostly done in the area of Cangkringan which is the catchment area that supplies water in the city of Jogjakarta. The purpose of this study was to report the results of the application of eco-settlement planning on huntap in Cangkringan area. The method used in this research are: 1) Identification of the condition of settlement infrastructure that had been built 2) comparative analysis of results of this identification with the concept of eco-settlement, 3) to formulate the results of the analysis. From the analysis, we can conclude that the development of infrastructure in the dwelling in accordance with the concept of eco-settlement.
ANALISIS POTENSI LIKUIFAKSI PADA PASIR VULKANIK DI PANTAI GLAGAH KULONPROGO BERDASARKAN DATA N-SPT Hanindya Kusuma Artati; Widodo Pawirodikromo; Edy Purwanto
TEKNISIA Vol. XXV, No. 2, November 2020
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol25.iss2.art6

Abstract

One of the most causes of damage to structures during earthquake is a liquefaction. Liquefaction happened in a loose sand which saturated under earthquake shaking.  Earthquake shaking will cause cyclic loading to the surface of the ground which potential for occurrence of liquefaction. The liquefaction phenomenon is a soil behavior under cyclic loads that occurs in just a few moments. Due to the short cyclic load, the soil mass suddenly changes from a solid limit to a liquid limit or has a main consistency such as liquid. Liquefaction events during an earthquake can be characterized by the presence of ground movement in the horizontal direction, seepage water out from fracture of the ground, movement of sloping or descending buildings, displacement of ground advance, and landslides. This study took a case study in Glagah Beach at Kulonprogo Regency. That is beach areas which is a landform alongside a body water which consist of loose particles such as sand where Yogyakarta International Airport (YIA) is located. Analysis was carried out to determine the potential of liquefaction based N-SPT data using the Seed, Martin & Lysmer (1975).  Based on these data, The Cyclic Stress Ratio (CSR) value is calculated, which is the ratio between the average shear stress caused by the earthquake with the effective vertical stress in each layer and the value of the Cyclic Resistance Ratio (CRR), which is the amount of soil resistance to liquefaction. The analysis in the Kulonprogo Regency area is an area that is considered to require liquefaction. Analysis of liquefaction potential based on on N-SPT data with the Seed, Martin & Lysmer (1975) method on a 6,3 magnitude earthquake. The Result indicate the potential for liquefaction occurs up to a depth of 8,5 meters.
ANALISIS REMBESAN DAN STABILITAS BENDUNGAN SARADAN Muhammad Saidillah; Hanindya Kusuma Artati
JURNAL TEKNIK SIPIL CENDEKIA (JTSC) Vol 3 No 2 (2022): July
Publisher : Faculty of Engineering, Planning and Architecture, Winaya Mukti University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (807.242 KB) | DOI: 10.51988/jtsc.v3i2.43

Abstract

Bendungan Saradan merupakan salah satu bendungan yang terletak di Kecamatan Saradan, Kabupaten Madiun, Provinsi Jawa Timur. Bendungan Saradan dibangun antara tahun 1942 oleh Pemerintah Hindia Belanda, oleh karena itu untuk mengetahui keamanan bendungan perlu ditinjau rembesan dan kestabilan badan bendungan saat ini. Penelitian ini menggunakan metode Casagrande untuk menganalisis rembesan yang terdapat pada tubuh bendungan dan metode Bishop untuk menganalisis stabilitas tubuh bendungan dengan menambahkan faktor koefisien beban gempa OBE (Operating Basis Earthquake) dan MDE (Maximum Design Earthquake). Dalam penelitian ini digunakan Program GeoStudio 2012 untuk menganalisis rembesan dan stabilitas badan bendungan pada kondisi muka air banjir, muka air normal, muka air minimum, dan penarikan cepat. Hasil analisis menggunakan Geostudio 2012 menunjukkan bahwa faktor keamanan untuk kestabilan badan bendungan Saradan ada pada kondisi dengan muka air banjir tanpa gempa 6,005 > 1,5 (Aman), dengan angka gempa OBE 3,452 > 1,5 (Aman ), dengan angka gempa MDE 1.457 > 1 (Aman), kemudian pada kondisi muka air normal tanpa gempa 5.037 > 1,5 (Aman), dengan gempa OBE 3.124 > 1,2 (Aman), dengan angka gempa MDE 1.407 > 1 (Aman), maka di kondisi muka air minimum tanpa gempa 2.541 > 1,5 (Aman), dengan angka gempa OBE 2.031 > 1,2 (Aman), dengan angka gempa MDE 1.245 > 1 (Aman), kemudian pada kondisi drawdown tanpa gempa 1,899 > 1,3 (Aman), dengan gempa OBE 1,541 > 1,1 (Aman), dengan angka gempa MDE 0,973 > 1 (Aman). Analisis rembesan pada bendungan Saradan setelah dilakukan perhitungan manual dan hasil analisis program GeoStudio 2012 menunjukkan dalam setiap kondisi aman.
Analisis Potensi Likuifaksi Berdasarkan Distribusi Ukuran Butir Tanah dan Data Cone Penetration Test (CPT) Deo Pratama Prayitno; Hanindya Kusuma Artati
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 27, Nomor 2, DESEMBER 2021
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (517.889 KB) | DOI: 10.14710/mkts.v27i2.40276

Abstract

Likuifaksi merupakan fenomena kegagalan pada lapisan tanah yang umumnya terjadi akibat beban siklik akibat gempa bumi. Penelitian ini dilakukan untuk mengetahui potensi likuifaksi berdasarkan distribusi ukuran butir tanah dan data CPT di kawasan Rumah Sakit UII Desa Wijirejo, Bantul, DIY. Berdasarkan letak geografisnya, Kabupaten Bantul memiliki potensi gempa yang tinggi dikarenakan berada di dekat sesar opak serta berada di zona subduksi antara lempeng Indo-Australia dan Lempeng Eurasia. Seiring dengan hal tersebut maka ada urgensi untuk penelitian ini. Analisis berdasarkan distribusi ukuran butir tanah dievaluasi menggunakan kurva Tsuchida (1970). Analisis berdasarkan data CPT dievaluasi menggunakan persamaan Seed & Idris (1971) dan IM Idriss & RW Boulanger (2008) untuk mendapatkan nilai keamanan lapisan tanah, yang kemudian digunakan untuk memprediksi tingkat potensi likuifaksi dengan nilai LPI menggunakan persamaan Luna & Frost (1998). Hasil penelitian menunjukkan bahwa kawasan Rumah Sakit UII memiliki potensi likuifaksi yang sangat tinggi. Berdasarkan distribusi ukuran butir menggunakan kurva Tsuchida (1970) di Desa Wijirejo, lapisan tanah pada kedalaman 1 meter didominasi oleh tanah berpasir dan lanau yang berpotensi likuifaksi. Berdasarkan data CPT, seluruh titik sondir memiliki potensi likuifaksi yang sangat tinggi dengan nilai LPI berturut-turut sebesar 48.405; 52.160; 57.498; dan 46.942 dengan kedalaman zona potensi likuifaksi 0,20 sampai 13,20 meter dari permukaan tanah.
Finite element modelling of soil nailing inclination effect on slope stability: Cibeureum slope case study Azmi Aufa Iftikhar; Hanindya Kusuma Artati
Teknisia Vol 29 No 1 (2024): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol29.iss1.art2

Abstract

On November 21, 2022, a 5.6 magnitude earthquake caused a landslide on one of the slopes in Cibeureum, Cianjur district. To repair the slope, reinforcement is necessary to achieve stability values that can withstand future earthquakes. One method for enhancing slope stability is soil nailing. Various soil nailing installation angles were analyzed to find the optimal design for the Cibeureum slope. Using the Plaxis 2D V20 program, the safety factor of the original slope without an earthquake was found to be 1.62. Increasing the installation angle of the soil nails from 10°, 15°, to 20° improved the safety factor, but the increase was not significant because the initial installation point was far from the slip line, requiring a nail length of 50 meters. The best configuration, yielding the highest safety value, was achieved with a modified slope angle of 19° and soil nails with a 50 m length installed at a 20° angle. This configuration produced a safety factor of 2.55 without an earthquake and 1.102 with an earthquake, as calculated using the Plaxis 2D V20 program.
Liquefaction potential study under Ijo Balit weir in East Lombok Indonesia Burhan, Lalu Ibrohim; Artati, Hanindya Kusuma; Makrup, Lalu; Saputra, Elvis
Teknisia Vol 30 No 1 (2025): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol30.iss1.art3

Abstract

Liquefaction phenomenon can be occurred in the sandy soil. Caused by an earthquake shaking on the sandy soil so the shear stress of the soil will be lost and the soil seem like liquid. Liquefaction in a site can cause the building on soil surface in the site can be crack or collapse. Therefore, it is need to study to review the liquefaction potential that will be occurred under Ijo Balit weir East Lombok. In general, the liquefaction, trigger by the earthquake shaking. Based on this condition so can be developed the earthquake shaking in form of the earthquake acceleration for time history. The time history of the earthquake wave can be developed in ground surface based on the spectral-matching-procedure with the target spectrum is design spectrum. Based on ground surface time history then can be calculated liquefaction potential on the soil layer under the Ijo Balit weir East Lombok. The study result can be mention that the soil layer in the site is not experience liquefaction.
Co-Authors Ahmad Latiful Ansori Albani Musyafa Azmi Aufa Iftikhar Deo Pratama Prayitno Edy Purwanto Lalu Ibrohim Burhan Makrup, Lalu Muhammad Saidillah Saputra, Elvis Widodo Pawirodikromo