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All Journal Jurnal Teknik ITS Rekayasa Teknik Sipil IPTEK Journal of Proceedings Series Jurnal Transportasi Jurnal Teknik Pengairan: Journal of Water Resources Engineering Rekayasa Sipil Jurnal Geosaintek Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Aplikasi Teknik Sipil Jurnal Manajemen Aset Infrastruktur dan Fasilitas JAE (Jurnal Akuntansi dan Ekonomi) Jurnal Manajemen Teknologi dan Teknik Sipil (JURMATEKS) Journal of Infrastructure and Facility Asset Management Publikasi Riset Orientasi Teknik Sipil (Proteksi) Interdisciplinary Social Studies Seminar Nasional Ilmu Terapan Riwayat: Educational Journal of History and Humanities Jurnal Geosaintek

Ria Asih Aryani Soemitro

Civil Engineering Departement, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia

Author-ID : 441000

Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Public Health Social Sciences Transportation Other

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Searching the Appropriate Minimum Sample Size Calculation Method for Commuter Train Passenger Travel Behavior Survey Anita Susanti; Ria Asih Aryani Soemitro; Hitapriya Suprayitno; Vita Ratnasari
Journal of Infrastructure & Facility Asset Management Vol 1, No 1 (2019): Journal of Infrastructure & Facility Asset Management
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Commuter Train is one of the facilities that must be managed properly, economically and efficiently by the principles of Facility Asset Management. The availability of infrastructure and vehicles for this facility is adjusted based on passenger demand. This requires sufficient knowledge on the travel behavior characteristics, i.e., different characteristics composition proportion. Travel behavior survey requires the appropriate formula or method to calculate the minimum sample size, for this case are proportions of pq, pqr, pqrs etc. Therefore, a search for Minimum Sample Size Calculation Method for the Travel Behaviour Survey is needed. A literature study was employed for this search. This is important because the calculation method for the minimum sample size for proportions pq exists, but for the proportion of pqr, pqrs, etc do not yet exist. The results of the study indicates that the SR Method is the most appropriate method for calculating the minimum number of samples for the case of the proportion of pqr, pqrs, pqrst, etc. The SR Method is developed based on Goodnees of Fit method combined with the Maximum Acceptable Error principle. The combination of the two is named the MAECCL (Maximum Acceptable Error on a Certain Confidence Level) principle.

Gradation Analysis of Reclaimed Asphalt Pavement from National Road as Asphalt Concrete Layer Ari Widayanti; Ria Asih Aryani Soemitro; Januarti Jaya Ekaputri; Hitapriya Suprayitno
Journal of Infrastructure & Facility Asset Management Vol 1, No 1 (2019): Journal of Infrastructure & Facility Asset Management
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

One of the assets of land transportation infrastructure that obtained attention now is the road. Road construction can support the developing economy, industry, trade, people and good mobility, regional development. Management of road infrastructure assets require to prioritize natural resources managements efficiently as possible. Reclaimed Asphalt Pavement (RAP) is the result of dredging material with aggregate gradation condition that are not in accordance with the needs of the gradation envelope. Utilization of RAP as a pavement layer is an effort to converse the use of natural materials. The efficiency aspect of RAP aggregate use needs to be done by determining the road pavement layer that is most appropriate to the condition of the RAP aggregate so that the addition of new aggregates is kept to a minimum. The aim of this study was to obtain a suitable pavement layer determination based on the aggregate gradation of RAP and standard specifications.The method used literature study from previous research and RAP aggregate sieve analysis from national roads in East Java Province. The results showed that the utilization of RAP from national roads based on the RAP aggregate conformance value were AC-WC layer of 82.292%, AC-BC layer of 68.75% and AC-Base layer of 41.667%. Based on the gradation analysis, it is found that the RAP aggregate is best suited for the AC-WC layer, because it requires optimal RAP aggregate and the most efficient of additional aggregate.

Preliminary Reflection on Basic Problematics of National Public Infrastructure Financing in Indonesia Ria Asih Aryani Soemitro; Hitapriya Suprayitno
Journal of Infrastructure & Facility Asset Management Vol 2, No 1 (2020): Journal of Infrastructure & Facility Asset Management
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Furnishing adequate national public infrastructure is an obligation for the government. Financing the infrastructure is not an easy problem. The main problem are that the NREB cannot finance the investment cost and the NREB capacity is not enough to finance he whole infrastructure needed. If in general the public infrastructure is merely a cost, there are certain infrastructure which can generate revenue. Meanwhile the GDP is far higher then the NREB. So, thinking involving private fund in public infrastructure financing is logical. Thus public infrastructure financing should be a mixture of public and private fund. The activity involving the Private Sector must be in an Attractive Comercial Activity. Thus preferably for revenue generator infrastructure. Revenue can be generated in various form. The basic idea of solutions can be grouped into fully financed by public budget, by a mixture of public private fund, and by fully private financed. Each group has its owned characterisitcs and derivative solution.

TINJAUAN ASPEK GRADASI RECLAIMED ASPHALT PAVEMENT DARI JALAN NASIONAL PROVINSI JAWA TIMUR Widayanti, Ari; Soemitro, Ria Asih Aryani; Ekaputri, Januarti Jaya; Suprayitno, Hitapriya
Seminar Nasional Ilmu Terapan Vol 2 No 1 (2018): Seminar Nasional Ilmu Terapan (SNITER) 2018
Publisher : Universitas Widya Kartika Surabaya

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Reclaimed Asphalt Pavement (RAP) merupakan material yang dihasilkan dari pengerukan sebagian atau keseluruhan dari lapisan perkerasan jalan. Aspek gradasi dari agregat merupakan hal yang amat penting dalam perencanaan lapisan perkerasan jalan karena agregat merupakan komponen campuran perkerasan jalan dengan persentase terbesar yaitu 90-95% dalam persentase berat. Oleh karena itu studi ini bertujuan untuk memperoleh bentuk gradasi agregat RAP sehingga diperoleh kesesuaian untuk dapat dimanfaatkan sebagai lapisan perkerasan Asphalt Concrete. Metode yang digunakan berupa studi literatur. Hasil yang dipeoleh adalah sebagian besar agregat RAP yang berasal dari jalan nasional cocok digunakan terutama untuk lapisan AC-BC (Asphalt Concrete – Binder Course) dengan nilai kesesuaian sebesar 75%.

IDENTIFIKASI AWAL MODA PENGHUBUNG YANG DIGUNAKAN OLEH PENUMPANG KA KOMUTER PADA SAAT MENUJU DAN MENINGGALKAN STASIUN Susanti, Anita; Soemitro, Ria Asih Aryani; Suprayitno, Hitapriya
Seminar Nasional Ilmu Terapan Vol 2 No 1 (2018): Seminar Nasional Ilmu Terapan (SNITER) 2018
Publisher : Universitas Widya Kartika Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (368.479 KB)

Pengguna angkutan umum diduga banyak didominasi oleh masyarakat dari kelompok Captive, sedangkan masyarakat dari kelompok Choice lebih memilih menggunakan kendaraan pribadi dalam pergerakannya sehari-hari. Oleh karena itu diperlukan identifikasi awal mengenai moda penghubung yang paling banyak digunakan oleh penumpang KA Komuter Surabaya-Sidoarjo (SUSI) dan KA Komuter Surabaya-Lamongan (SULAM) pada saat menuju dan meninggalkan stasiun. Metode yang dilakukan pada identifikasi awal ini adalah pengumpulan data sekunder dan data primer. Hasil identifikasi awal menunjukkan bahwa penumpang KA Komuter SUSI arah Surabaya-Sidoarjo di jam keberangkatan pagi hari dari 50 orang penumpang didominasi oleh pengguna sepeda motor sebesar 30 orang penumpang (60%) dan 23 orang penumpang (46%) pada saat menuju dan meninggalkan stasiun. Pergerakan penumpang dari arah Sidoarjo-Surabaya di jam keberangkatan pagi hari dari 57 orang penumpang didominasi oleh pengguna sepeda motor sebesar 42 orang penumpang (74%) dan 23 orang penumpang (40%) pada saat menuju dan meninggalkan stasiun. Pergerakan penumpang dari arah Surabaya-Lamongan dari 54 orang penumpang didominasi oleh pengguna sepeda motor sebesar 23 orang penumpang (43%) dan 21 orang penumpang (39%) pada saat menuju dan meninggalkan stasiun. Pergerakan penumpang dari arah Lamongan-Surabaya dari 54 orang sebesar 35 orang penumpang (65%) menggunakan sepeda motor menuju stasiun asal dan 26 orang penumpang (48%) menggunakan mikrolet menuju stasiun tujuan.

Evaluasi Risiko Likuifaksi Berdasarkan Karakteristik Ukuran Butir Tanah dan Hasil Tahanan Standart Penetration test (N-SPT) Studi kasus Bandara Yogyakarta Internasional Airport Diana, Nur Ayu; Soemitro, Ria Asih Aryani; Ekaputri, Januarti Jaya; Satrya, Trihanyndio Rendy; Warnana, Dwa Desa
PUBLIKASI RISET ORIENTASI TEKNIK SIPIL (PROTEKSI) Vol 6 No 1 (2024): Vol. 6 No.1 (2024)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/proteksi.v6n1.p51-58

Salah satu bentuk kerusakan pada struktur tanah adalah likuifaksi, di mana tanah berubah dari keadaan padat menjadi cair karena tekanan air pori meningkat dan tekanan efektif tanah menurun akibat beban siklis dinamis. Efeknya bisa sangat signifikan terutama pada tanah berpasir yang sudah jenuh. Penelitian ini bertujuan untuk mengevaluasi kemungkinan likuifaksi berdasarkan data N-SPT serta mengidentifikasi hubungan antara karakteristik tanah dan gempa terhadap risiko likuifaksi. Penelitian dilakukan di area Yogyakarta International Airport (YIA). Metode analisis potensi likuifaksi dimulai dengan menggunakan persamaan dari National Center For Earthquake Engineering Research (NCEER) USA, yang menggunakan data N-SPT untuk menilai potensi likuifaksi secara deterministik menggunakan rasio tahanan siklik tanah (CRR), rasio tekanan siklik beban gempa (CSR), dan koefisien variansi dari kedua rasio tersebut. Hasil analisis menunjukkan bahwa area penelitian memiliki potensi tinggi untuk likuifaksi terdapat pada permukaan tanah hingga pada kedalaman data SPT 15 m . Korelasi antara parameter tanah menunjukkan bahwa peningkatan nilai N-SPT berhubungan dengan peningkatan nilai CRR, namun peningkatan nilai CRR. Selain itu, peningkatan magnitudo gempa berhubungan dengan peningkatan potensi likuifaksi, dimana pada magnitudo gempa 6,5 SR, nilai CRR lebih besar dibandingkan pada magnitudo 7,5 SR dan 8,5 SR. Semakin besar nilai CRR, semakin kecil potensi likuifaksi.

Analisis Pengaruh Infiltrasi Hujan Terhadap Stabilitas Lereng STA 62+450 S/D 62+825 Jalan Tol Seksi Sp. Indralaya – Prabumulih Dengan Software Geo Studio Oktaliyani, Tiara; Soemitro, Ria Asih Aryani; Satrya, Trihanyndio Rendy
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 7 No. 2 (2024): DECEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v7i2.6330

The construction of the Indralaya-Muara Enim Interchange Toll Road, especially the Indralaya-Prabumulih Interchange Section, was hampered by landslides after excavation was carried out between STA 62+450 to 62+825. The combination of steep slopes and rain infiltration weakened the soil structure, increasing the risk of landslidesThis research aims to analyze the effect of rainwater infiltration on slope stability on the Sp Section Toll Road Project. Indralaya–Prabumulih. The research methodology used was to analyze landslide slope areas using the Slope/W and Seep/W programs from Geo Studio. This study evaluated different excavation heights and an initial excavation slope of 1:3. The focus is on calculating the safety factor (SF) at varying rain durations (1 hour, 3 hours, and 5 hours), with SF values below 1.5 indicating instability. The Safety Factor (SF) value of the existing soil before excavation was 1.58, but after 1 hour of rain, the SF decreased to 1.33 (15.66% decrease). After 3 hours, SF dropped to 1.13 (28.34% decrease), and reached 1.10 (30.24% decrease) after 5 hours. Strengthening slopes using the Hydroseeding method increases SF to 1.83, while the use of Retaining Wall increases SF more significantly to 2.54. This research reveals the impact of rain infiltration on soil stability and proves the effectiveness of slope strengthening methods. These results are an important basis for planning effective landslide mitigation on toll road excavations.

Analysis of Stability and Differential Settlement of Existing Embedded Construction in Stages (Case Study: Sidoarjo Muddle Embedded (LuSi) Parwita*, Dewa Ngakan Putu Ananda; Soemitro, Ria Asih Aryani; Satrya, Trihanyndio Rendy
Riwayat: Educational Journal of History and Humanities Vol 6, No 4 (2023): Educational, Historical Studies and Humanities
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jr.v6i4.36764

In May 2006, a mud eruption occurred in Sidoarjo, East Java, Indonesia, prompting the construction of embankments to contain the affected area. Due to the continuous eruption of mud, the embankment's storage capacity has reached its limit, and it has been raised continuously in stages. Unfortunately, underlying soft clay remains unreinforced, posing a risk of failure. Previous research results indicate that consolidation is still ongoing, and settlement is predicted to continue for decades. To address these issues, researchers used finite element method analysis, Plaxis 2D, to analyze the effects of embankment construction stages and consolidation processes on embankment stability. Research objectives include settlement, safety factors, and consolidation duration. The analysis results on the model are compared with journal findings (Whittle et al., 2022). Based on the research, it is found that with precisely the same input data, there are differences in safety factor and settlement values, but they exhibit similar behavior. After the validation process, it is obtained that a change from Undrained B drainage type to Undrained A is needed, with different data requirements. Effective cohesion (c') of 17 kPa and effective internal friction angle (') of 14 are used as new input data. The settlement and safety factor behavior based on this input data shows similar values. The largest differential settlement occurs at the middle of the embankment (X = 79 m), and the smallest is downstream (X = 40 m) when the construction reaches the fifth stage. The consolidation duration is 18,590 days with a predicted maximum settlement of 9.096 m

Deteksi Persebaran Air Lindi Menggunakan Inversi VLF-EM Studi Kasus TPA Ngipik PDF Yadi, Khairul; Warnana, Dwa Desa; Rochman, Juan Pandu Gya Nur; Sutra, Nila; Soemitro, Ria Asih Aryani
Jurnal Geosaintek Vol. 3 No. 2 (2017)
Publisher : Institut Teknologi Sepuluh Nopember

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Tempat Pembuangan Akhir (TPA) Ngipik menggunakan sistem Openg Dumping, sehingga dengan sistem ini akan menyebabkan pencemaran lingkungan salah satunya melalui air lindi yang dihasilkan dari sampah. Telah dilakukan penelitian untuk mengidentifikasi air lindi menggunakan metode Inversi VLF-EM. Dari hasil pengolahan data VLF menggunakan inversi diperoleh nilai resistivitas daerah yang teridentifikasi adanya air lindi berkisar 1.6-2.5 yang sudah tersebar hingga kedalaman 15 m. Hal ini mengidentifikasikan bahwa air lindi sudah tersebar di Area TPA Ngipik

Studi Sebaran Air Lindi Berdasarkan Korelasi Data Resistivitas 2D, Data Uji Laboratorium Dan Data Pemboran Tpa Ngipik Kabupaten Gresik Arsyadi, Ahmad Qomaruddin; Warnana, Dwa Desa; Sutra, Nila; Soemitro, Ria Asih Aryani
Jurnal Geosaintek Vol. 3 No. 3 (2017)
Publisher : Institut Teknologi Sepuluh Nopember

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Co-Authors Adi, Trijoko Wahyu Agustina Dwi Atmaji Ahmad Qomaruddin Arsyadi Anita Susanti Anita Susanti Anita Susanti Anita Susanti Anita Susanti Anita Susanti Ari Widayanti Ari Widayanti Ari Widayanti Ari Widayanti Ari Widayanti Arsyadi, Ahmad Qomaruddin Arsyadi, Ahmad Qomaruddin Budianto, Herry Connie Susilawati Cupasindy, Dyah Ayu Rahmawati D. D. Warnana Deris Faisa Ralindra Dewi, Dyah Kusuma Diana, Nur Ayu Dwa Desa Warnana Eko Indrawati Endo Petakasari Farida Rachmawati Herry Budianto Herry Budianto Hitapriya Suprayitno, Hitapriya Ifnul Manaf Ignasius Rahmat Santoso Indarto . Indarto Indarto Indarto Indarto Indarto, Indarto Indra Rahma Hardiana Intan Yuanita Jaka Propika Januarti Jaya Eka Putri Januarti Jaya Eka Putri Januarti Jaya Ekaputri Jayanti, Rita Sri Juan Pandu Gya Nur Rochman Khairul Yadi M. A. Maulana Maulana, Mahendra Andiek Muhammad F. Dika Nadjadji Anwar Nanang Permadi Nanang Permadi Nila Sutra Oktaliyani, Tiara Parwita*, Dewa Ngakan Putu Ananda R. Soetanto Ratna Handayani Ravinda Wahyu Kiranasari Ridha Annisa Imaniar Ridho Bayuaji Rita Sri Jayanti Runi Asmaranto Satria, Trihanyndio Rendy Soedarmawan Soewardi Sutra, Nila Sutra, Nila T. R. Satrya Trihanyndio Rendy S, Trihanyndio Rendy Trihanyndio Rendy Satrya Utomo, Puji Nur Vita Ratnasari Wahyu Ady Sulistyo Wiwik Handayani yadi, Khairul Yervi Hesna Yoga Pradana

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