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All Journal Journal of Engineering and Technological Sciences Jurnal Teknik Sipil INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Simposium II UNIID 2017 The Jurnal Arsip Rekayasa Sipil dan Perencanaan (Journal of Archive in Civil Engineering and Planning) Jurnal Teknik Sipil dan Teknologi Konstruksi Aceh International Journal of Science and Technology Jurnal Teknik Sipil Journal of The Civil Engineering Student Acta Geoscience, Energy, and Mining
Halida Yunita
Department Of Civil Engineering, Syiah Kuala University
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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ANALISIS BENTUK GEOMETRI TERHADAP STABILITAS LERENG PADA TAMBANG TERBUKA DARI ASPEK GEOTEKNIK Lisa Fianti; Munirwansyah Munirwansyah; Halida Yunita
Jurnal Arsip Rekayasa Sipil dan Perencanaan Vol 3, No 2 (2020): Jurnal Arsip Rekayasa Sipil dan Perencanaan
Publisher : Prodi Magister Teknik Sipil Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jarsp.v3i2.16567

Abstract

Aceh Province is one of the coal producers, especially Sumber Batu Village in Meurebo District, West Aceh Regency. In the implementation of coal mining, it is necessary to pay attention to the slope stability of open-pit mining to identify and estimate the possibility of landslides. For this reason, the author conducted research in analyzing the geometric shape of the slope stability with the slope variance of modeling the reduction of the existing angle αeks - 10% to the depth of three layers of soil 11 meters. The 1st layer of soil is 1.5 meters, the second layer of soil is 2.5 meters, and the third layer of soil is 7 meters. Slope stability is strongly influenced by the geometric shape of the slope and the strength of soil parameters. To identify the stability of the slope against slope failure, computationally performed using the finite element method with Plaxis software as the reference for the value of FK 1.25, which is considered safe/stable, meaning that collapse rarely occurs. In this research, primary data is used in the form of direct observation in the field, namely taking soil samples to obtain soil data in the form of soil physical properties and soil mechanical properties into soil parameter data, which is tested in the soil laboratory. Secondary data used are map data, boring data, and Sondir data. Soil parameter data were processed using Plaxis software. The results of the slope stability analysis showed that by modeling the geometric shape of the slope (αeks - 10%) on the open slope of a coal mine with a soil depth of 11 meters, the FK value was 3.60. From the results of the FK scores, it shows that the slope of the slope is 3.60 1.25 above the reference value of safe/stable FK. The FK value is 0.2 greater than the FK existing geometry. The conclusion of this study is that geometric shapes play an important role in determining the stability of an open coal pit excavation slope. The smaller the slope angle, the greater the FK value obtained, or the more gentle the slope, the higher the safety value of a slope.
ANALISIS PERENCANAAN BUKIT BUATAN (ESCAPE HILL) TERHADAP TINGGI RUN UP UNTUK TEMPAT EVAKUASI SEMENTARA Windy Widilestari; Munirwansyah Munirwansyah; Halida Yunita
Jurnal Arsip Rekayasa Sipil dan Perencanaan Vol 2, No 3 (2019): Jurnal Arsip Rekayasa Sipil dan Perencanaan
Publisher : Prodi Magister Teknik Sipil Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jarsp.v2i3.13463

Abstract

As we know, there is still a lack of the optimal effort for temporary evacuation sites to face the various threats of the earthquake which may caused the tsunami in the city of Banda Aceh. To deal with this serious threat, it is necessary to prepare a place of salvation to face the tsunami. In this case, it is an escape hill. The objective of this research is to determine the bearing capacity of the subgrade to the escape hill planning and the amount of the settlement, due to the load of the embankment height (Hcrit) and the value of the slope safety factor (FK). This research is conducted in Desa Deah Baro with the GCS coordinates (Geographic Coordinate System) 5º33'45.72"N 95º17'51.34"E which was calculated by using the Plaxis 8.2 computing system on the variations of the embankment height which started from the existing which is 2,0 m height, 4,0 m, 6,0 m, 8,0 m, 10 m and 12 m (run-up performance). As the results of analysis, the researcher found that the addition of the load due to the increase in soil embankment height has resulted in an increase in the value of settlement to the soil stability with an average percentage of 2,86% and the safety factor decreasing value (FK) numbers on slopes with an average percentage of 0,10%. At 2,0 m embankment heights, the researcher obtained a settlement value of 0,271 cm with the safety factor value (FK) is 1,684 greater than 1. Furthermore, with the embankment height of 4,0 m, there is a settlement of 1,139 cm dan safety factor (FK) 1,365 greater than 1. At a embankment height of 6.0 m there is a settlement of 3,035 cm and a safety factor (FK) 1,214 greater than 1. At embankment heights of 8,0 m, the settlement is 6,244 cm with a safety factor (FK) 1,135 greater than 1. For embankment heights of 10 m and 12 m, the decrease occurred was 10,991 cm and 17,446 cm with safety factor (FK) = 1,095 and 1,044~1. The occured decline was still within the tolerance limits, so that the subgrade was still able to withstand the embankment. The results of the value of the safety factor (FK) showed that the slope was safe and did not indicate the slope slides.
ANALISIS KERENTANAN TANAH TERHADAP BAHAYA LIKUIFAKSI BERDASARKAN DATA PENGUJIAN SPT Muhammad Kautsar Rizki; Halida Yunita; Bambang Setiawan; Zulkifli Zulkifli
Jurnal Arsip Rekayasa Sipil dan Perencanaan Vol 4, No 4 (2021): Jurnal Arsip Rekayasa Sipil dan Perencanaan
Publisher : Prodi Magister Teknik Sipil Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jarsp.v4i4.25575

Abstract

Aceh is a province in Indonesia that was hit significantly by the 26 December 2004 disaster. The province was also hit by the M 6.5 Pidie Jaya earthquake on 7 December 2016. Several damages induced by liquefaction, i.e., sand boils, were observed in these two seismic events. Liquefaction is defined as the transformation of granular material from a solid to a liquefied state. This Liquefaction phenomenon can cause damage to buildings and infrastructures built on it. This study presents the results of liquefaction assessment using the standard penetration test (SPT). A borehole was sunk at Rundeng Village, Johan Pahlawan sub-distrit, Aceh Barat distrit to collect the SPT data. This location was selected as several facts, i.e., low water table, built of sand layer, and high seismicity region were suggested for this Rundeng village. Three different models of  Esteva (1974), Donovan (1970), and Mc Guirre (1977) were used to estimate the cyclic stress ratio (CSR). A model developed by Seed and Idriss (1982) was employed to estimate the cyclic resistance ratio (CRR). From the calculation of potential liquefaction evaluation, the cyclic stress ratio (CSR) value highly depends on the earthquake magnitude. The greater the earthquake magnitude, the greater the CSR value becomes. Soil layers from SPT data at a depth of 3,50 m – 13,00 m have a value of (N1)60cs 30 which means the soil is too dense to liquefy and classified as non-liquefiable soil. From the SPT data, it can be seen the soil will be liquefied if an earthquake with a magnitude ≥ 8 occurs.
Co-Authors Abdiel Khaleil Akmal Akmal Muhni Al-Huda, Nafisah Ani Safitri Ardika, Jumelia Ardika, Jumelia - Arfan, Rahmanul Badrul Munir, Badrul Bambang Setiawan Bambang Setiawan Bambang Setiawan Banta Chairullah Cut Lutfia Khalisa Cut Sitti Rafidatul Hildayani Dedi Apriadi Devi Sundary Dewi Sartika Dhanni Riyanda Dian Febrianti dian febrianti Elmira, Fara Qamara Evidasari . . Fachri, Fachri Faradiba, Ratu Shara Fauzan Mufid Gartika Setiya Nugraha Hendra Gunawan Hendriyawan, Hendriyawan Heni Pujiastuti Hildayani, Cut Sitti Rafidatul Ibnu Rusydy Idris, Yunita Iskandar*, Juellyan Lisa Fianti Mona, Nasyiratun Muhammad Kautsar Rizki Munira Sungkar MUNIRA SUNGKAR, MUNIRA Munirwansyah Munirwansyah Munirwansyah Munirwansyah Munirwansyah Munirwansyah Munirwansyah Munirwansyah Muzhaffar, Imam Nafisah Al Huda Nasyiratun Mona Reza P. Munirwan Rifqan*, Rifqan Rifqan, Rifqan Riyanda, Dhanni Setiawan*, Bambang Suched Likitlersuang Suched Likitlersuang, Suched Taufiq Saidi Thirapong Pipatpongsa Thirapong Pipatpongsa, Thirapong Triatmojo, Doni Wahyudie, Ridha Windy Widilestari