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All Journal Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain Journal of Engineering and Scientific Research (JESR) Publikasi Riset Orientasi Teknik Sipil (Proteksi) Jurnal Komposit : Jurnal Ilmu-Ilmu Teknik Sipil Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Nemui Nyimah
Nur Arifaini
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Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Transportation Other

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REVITALISASI JARINGAN IRIGASI RAWA SUB-SEKUNDER UNTUK MENINGKATKAN PRODUKTIFITAS HASIL PERTANIAN (STUDI KASUS IRIGASI SUB-SEKUNDER RAWA PITU SP 2) Arifaini, Nur; Zakaria, Ahmad; Setiawan, Randy
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 18, No 3 (2014): Edisi Desember 2014
Publisher : UNIVERSITAS LAMPUNG

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Abstract

Lampung Province has a fairly wide swamp area, one of them is in Rawa Pitu area. Swamp irri- gation in Rawa Pitu area has not been used extensively. The purpose of this research is to conduct a study, analysis, and systematically arranged recommendations on revitalizing Rawa Pitu swamp area that can be optimized to increase food crops production in order to improve the welfare of society. The research site is located in the sub-district of Rawa Pitu, Tulang Bawang regency. The location of Rawa Pitu is between the Tulang Bawang and the Pidada rivers. Analysis in this study is more focused on the revitalization of the sub-secondary of swamp irrigation system to increase agricultural productivity in Rawa Pitu area by comparing before and after revitalization. From the calculation, it is obtained that: the maximum of 3 days cumulative daily rainfall with the 5 years return period is obtained 104,12 mm and the amount of drainage modulus is obtained at 4,016 mm / day. Agricultural yield before revitalized, for the rice, the profit is Rp.13.697.819.386,- and for the crops, the profit is Rp.12.452.563.078.-. Agricultural production after revitalized is in- crease, for the rice, the profit is Rp.18.739.594.819,- and for the crops, the profit is Rp.17.035.995.290,-. The value of benefit cost ratio is about 1,38 and it is greater than 1,0, so that there is a profit, and net present value is positive, it is Rp.7.642.988.768,-.
EVALUASI KINERJA JARINGAN IRIGASI DI SALURAN SEKUNDER PADA BERBAGAI TINGKAT PEMBERIAN AIR DI PINTU UKUR Susi Hariany; Bustomi Rosadi; Nur Arifaini
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 15, No 3 (2011): Edisi Desember Tahun 2011
Publisher : UNIVERSITAS LAMPUNG

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Abstract

Way Rarem irrigation area is focused on improving the productivity of food crops in Lampung. Servicearea of the Regional Irrigation Way raw Rarem estimated at 22,960 hectares. However, in reality thestandard service area for irrigation area is still not achieved. Based on the issues raised above,needed study to find out the problems occur one is to see the relationship of door opening effect to thethe performance of irrigation networks.The results of research in the field indicate that there has been a difference between the dischargemeasurement results with a standard discharge door opening between 0,025 – 0, 206 m3/sec. Thisindicates that a leak in the secondary channel, causing the discharge was not supposed to be deliveredin accordance with the requirements of the land. Loss water are also performed in the secondarybetween BR 32 to BKR 2 canals and water loss by evaporation to pan evaporation test. The resultsshowed the loss of water channels also occur between 0.009 m 3/sec - 0.025 m3/sec. If calculated on apercentage, then the maximum water loss in the secondary channel is 3,27%. Loss of water due toevaporation in the channel is 0,00108 m3/sec/day. If we calculated the economic impact caused of lossof water in the door, then the loss of water amounting to 0,206 m3/sec will make 1,4574 billion IDR.(One billion four hundred and fifty seven million four hundred thousand rupiahs) for the first time thegrowing season. Thus, needed recalibration of the door in the secondary canal as needed accordancewith the plan so that the irrigation network performance can be improved.
Review: The Use of Eco-Enzymes in Greywater Treatment Khotimah, Siti Nurul; Ginting, Simparmin Br; Arifaini, Nur; Mardhotillah, Nur Anisa; Puligadda, Lohit Krishna Pranav
Journal of Engineering and Scientific Research Vol. 6 No. 1 (2024)
Publisher : Faculty of Engineering, Universitas Lampung Jl. Soemantri Brojonegoro No.1 Bandar Lampung, Indonesia 35141

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jesr.v6i1.169

Abstract

Water pollution such as in rivers has become a concern due to its impact on health and the decreasing availability of clean water. There is a common assumption that industrial pollution is the main cause of water pollution. However, an interesting fact is that river pollution is largely dominated by contamination from household wastewater (domestic waste) discharged directly into drainage systems and ending up in rivers without prior treatment. Such cases are particularly prevalent in developing countries. Therefore, the challenge is to find solutions to treat domestic wastewater using simpler and cheaper technologies. Current research is focused on treating domestic wastewater especially greywater with eco-enzymes. Eco-enzymes are enzymes produced from the fermentation process of organic materials such as fruit peels or vegetable scraps for a minimum of three months. This paper will review the treatment of greywater using eco-enzymes, including the eco-enzyme production process, its characteristics, greywater characteristics, the methods employed, and the research findings. Finally, the paper will recommend possible avenues for further research related to the treatment of greywater using eco-enzymes
The Performance Assessment of Irrigation System on Tertiary Irrigation Network of Jabung Irrigation Area, East Lampung Regency: Performance Assessment of Irrigation System on Tertiary Irrigation Network of Jabung Irrigation Area, East Lampung Regency Mahardika, Siti; Dyah Indriana Kusumastuti; Endro Prasetyo Wahono; Nur Arifaini
PUBLIKASI RISET ORIENTASI TEKNIK SIPIL (PROTEKSI) Vol 7 No 1 (2025): Vol 7 No 1 (2025)
Publisher : Universitas Negeri Surabaya

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Abstract

Jabung Irrigation Area is one of the irrigation areas located in East Lampung Regency with an area of 7,288 hectares. Jabung Irrigation Area has a problem of uneven water distribution. This problem occurs in the downstream area due to damage to physical infrastructure, especially in tertiary irrigation canals, and sub-optimal operation and maintenance activities. Therefore, based on the Minister of Public Works and Housing Regulation No. 12/PRT/M/2015 concerning the Exploitation and Maintenance of Irrigation Networks, a study was conducted on determining the Irrigation System Performance Index (IKSI) of the tertiary network in the Jabung Irrigation Area. The purpose of this study is to assess the performance of the tertiary irrigation system of the Jabung Irrigation Area which is useful for formulating follow-up programs such as repair, rehabilitation, and maintenance of the irrigation network. The research method was carried out using a qualitative descriptive method and direct assessment in the field as well as interviews. The assessment covers 6 aspects, namely the condition of physical infrastructure, crop productivity, supporting facilities, personnel organization, documentation, and Farmers' Water Users Association (P3A). The results showed that the performance of the tertiary irrigation network in the Jabung Irrigation Area is in good condition (70.54%).
Peningkatan Kapasitas Mitigasi Bencana Tsunami Melalui Program Perawatan Terumbu Karang Buatan di Desa Kunjir, Kabupaten Lampung Selatan Kusuma, Anma Hari; Siregar, Amril Ma’ruf; Arifaini, Nur; Kustiani, Ika
Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Vol. 3 No. 2 (2024): Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Vol 3 No 2, September
Publisher : Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpfp.v3i2.9724

Abstract

Indonesia merupakan salah satu negara dengan posisi tempat bertemunya tiga lempeng tektonik dunia sehingga sebagai tempat berkumpulnya berbagai macam bencana. Bencana adalah peristiwa atau rangkaian peristiwa yang mengancam dan mengganggu kehidupan dan penghidupan masyarakat yang disebabkan, baik oleh faktor alam, non-alam dan kelalaian manusia sehingga mengakibatkan timbulnya korban jiwa manusia, kerusakan lingkungan, kerugian harta benda, dan dampak psikologis. Tsunami adalah salah satu jenis dari bencana tersebut. Tsunami adalah gelombang laut besar yang ditimbulkan oleh gempa bumi di dasar laut karena adanya subduksi lempeng, pergerakan patahan, letusan gunung berapi dasar laut. Desa Kunjir adalah salah satu desa yang ada di Kabupaten Lampung Selatan yang terkena dampak bencana tsunami. Meskipun Desa Kunjir memiliki potensi yang besar terhadap bencana tsunami tetapi rencana mitigasi terhadap ancaman bencana tsunami yang dimiliki oleh masyarakat desa masih sangatlah minim, Mitigasi dapat berupa pembuatan terumbu karang buatan. Kegiatan ini dilaksanakan di Desa Kunjir, Kecamatan Rajabasa, Kabupaten Lampung Selatan, Provinsi Lampung. Pelaksanaan kegiatan transplantasi dilakukan melalui dua tahapan yaitu tahap persiapan, pelaksanaan dan evaluasi.  Berdasarakan kegiatan yang dilakukan dapat disimpulkan bahwa adanya peningkatan pemahaman dan keterampilan kelompok mitra dalam penerapan teknologi terumbu buatan dan adanya peningkatan pengetahuan mengenai perawatan terumbu karang.
Analysis And Planning of Bored Pile Foundation In Double Train Bridge Way Changes In Central Lampung Regency Hendri, Adit Pratama; Arifaini, Nur; Adha, Idharmahadi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 7 No. 4 (2019): Edisi Desember 2019
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v7i4.1232

Abstract

Indonesia has considerable coal reserves, but only a few or even very few can be exploited. The potential of coal owned by South Sumatra Province is known to reach around 85% of the total reserves contained in Sumatra, or around 22.24 billion tons. This means that even though mining is maximized to 50 million tons per year, coal will not be mined for 200 years. To maximize the potential of available coal, modes are needed from the train, but for now there is only one mode used to extract coal from it to transport coal from Tarahan - Tanjung Enim or vice versa. So to maximize the coal's potential, the Ministry of Transportation through the Directorate General of Railways plans to build a double track railway line between Tarahan - Tanjung Enim, one of the roads going through the river is needed a bridge to facilitate the train journey to transport the coal. The railroad bridge that was built was located in KM132 in the burial way of Central Lampung Province. In this bridge construction, the carrying capacity of the foundation needs to be analyzed so that it can withstand the burden of the upper structure and the train.From the results of the study showed that the analysis of the carrying capacity of the permit pile of 1700 kN was greater than the maximum carrying capacity that burdened the pile of 1508.93 kN so that it could be concluded that the structure under the bridge was able to withstand the load from the upper structure. Keywords: analysis, coal, bridge, carrying capacity.
Body Cliff Safety Study Of Double Track Railway With Geostudio Slope/W Analysis Warikar, Yance Y D; Arifaini, Nur; Siregar, Amril Ma'ruf
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 1 (2020): Edisi Maret 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i1.1269

Abstract

Double track railway construction area railroad crossing many hills and rivers makes the railroad body located between the slopes of the hill. Around the area, disasters that often occur are landslides caused by increased pore water pressure on the slope resulting a decrease in the shear strength of the soil (c) and the deep shear angle (φ). Therefore in planning the handling of cliffs of railroad tracks it is necessary to analyze the stability of slopes or cliffs so as not to endanger the surrounding environment, especially in railroad transportation. The purpose of the research are: (1) To know the cross section of the safest slope by considering the slope angle, (2) To Find the value of the safe factor for shear and rolling on the slope by using software analysis, (3) To know type of slope safety in accordance with slope conditions. The location of this research was conducted in the Martapura-Giham area which is the location of the construction of double track railroad, Waykanan Regency, Lampung. The method used in the analysis of slope stability is Geostudio Slope/W Analysis by making 3 cross-section slope designs which are then analyzed further. The results of the analysis found that the slope conditions before handling obtained the number of safe factors with ordinary, bishop, and morgenstern methods, respectively 0.730; 0.911; and 0.950. While after handling with sheetpile construction, it was obtained the number of safe factors with ordinary, bishop, and morgenstern methods in a row that is 2,945; 3,633; and No Solution. It can be concluded that the slope condition after handling shows increase in the value of the safe factor by 500%. Keywords: Geostudio Slope/W Analysis, Double track railroad, Cliffs and slope stability.
Analisis Struktur Bangunan Bawah Jembatan Kereta Api Way Pengubuan Vinandhitha, Aulia; Setyanto, Setyanto; Arifaini, Nur
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 3 (2020): Edisi September 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i3.1487

Abstract

Jembatan merupakan salah satu konstruksi yang berguna untuk melancarkan proses pengiriman batu bara yang diangkut oleh KA Babaranjang. Tujuan dari penelitian ini adalah merencanakan struktur bawah jembatan kereta api dan mengetahui tingkat keamanan berdasarkan beban dari aksi tetap, aksi lingkungan, beban lalu lintas, dan aksi lainnya.  Berdasarkan penelitian analisis struktur bawah didapatkan dimensi abutment dengan tinggi 7,67 m dan panjang 6 m. Dengan dimensi abutment tersebut diperoleh angka aman untuk kontrol stabilitas guling arah x sebesar 2,5825 dan arah y sebesar 28,9128, dengan batas aman stabilitas guling sebesar 2,5. Kontrol stabilitas geser arah x sebesar 1,1003 dan arah y sebesar 1,9991, dengan batas aman stabilitas geser sebesar 1,1. Dimensi pile cap digunakan tebal 1,5 m, lebar 8,8 m, dan panjang 6 m. Pondasi yang digunakan adalah pondasi tipe bored pile dengan diameter sebesar 1 m dan kedalaman sebesar 6 m. Jumlah pondasi yang dipakai 12 buah dengan susunan 3 x 4. Dan diperoleh daya dukung aksial maksimum sebesar 1979,497 kN serta daya dukung aksial izin sebesar 3072,403 kN. Kata Kunci : Struktur Bawah Jembatan, Abument, Pile Cap, Bored Pile
Studi Long Storage Sebagai Upaya Mengatasi Kekeringan Di Daerah Cinta Manis Sumatera Selatan Trisdiana, Fitri; Arifaini, Nur; Zakaria, Ahmad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 9 No. 1 (2021): Edisi Maret 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i1.1641

Abstract

This study aims to conduct a long storage study as an effort to overcome drought in the Cinta Manis area, South Sumatra. The research data used is the maximum daily rainfall data from 2009 - 2018 which was obtained from the Palembang Climatological Rain Station. From the research results obtained hydrological analysis data and hydraulic analysis. For hydrological analysis, statistical parameter methods are used to determine the planned rainfall. The results of this method were analyzed in harmony with the Chi Square test and the Smirnov-Kolmogorov test and the distribution type used was the Log Pearson III distribution. To calculate the water holding capacity in long storage, the cumulative storage volume analysis is used to analyze the volume that is bounded by a certain contour, with a simple formula published by the Manual of Sediment Control Dam Construction of the Ministry of Public Works. Based on the research results, it can be seen that the potential for long storage storage obtained from rainwater is 95771.18 m³ and water storage capacity in long storage which is 137334.43 m³ is able to serve 40.87 ha. The water storage capacity in long storage is able to irrigate the sugarcane fields in Rayon 1B and as a storage place for water reserves so that there is no drought when the dry season arrives.Keywords: long storage, rain, analysis
Perbandingan Intensitas Curah Hujan Menggunakan Data Badan Meteorologi Klimatologi dan Geofisika (BMKG) dan Satelit Tropical Rainfall Measuring Missions (TRMM) di West Java Saputra, Fajar Ilham; Zakaria, Ahmad; Arifaini, Nur; Angin, Geleng Perangin
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 9 No. 4 (2021): Edisi Desember 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i4.2097

Abstract

Dalam penelitian ini data curah hujan diambil dari beberapa stasiun hujan BMKG dan TRMM yaitu Stasiun Bogor, Stasiun Tangerang Selatan, Stasiun Kemayoran.Tujuan penelitian ini adalah seberapa besar nilai korelasi data curah hujan BMKG dengan TRMM, hasil analisis perbandingan parameter statistik dari data curah hujan BMKG dan TRMM, dan bentuk persamaan hubungan antara data curah hujan BMKG dengan TRMM. Nilai korelasi yang paling terbesar pada data bulanan adalah 0,7359 dengan persamaan linier nya adalah y 1,0427x–41,629 yang dimana terletak pada di stasiun Kemayoran. analisa parameter statistik yang dilakukan dapat diketahui bahwa mean dan simpangan baku data BMKG lebih besar dibandingkan dengan data TRMM. Dikarenakan bahwa adanya data yang kosong dan pola grafik nya memiliki kesamaan.Perlu adanya pengkajian lokasi yang lebih banyak dan panjang untuk dapat melihat kemungkinan data TRMM mampu mengisi dalam data yang kosong. Perlu adanya dilakukan pengamatan secara detail, seperti ketinggian tempat pengukuran curah hujan dan pengaruh arah angin pada temporal Precipitation Radar TRMM.
Co-Authors Adit Pratama Hendri Ahmad Zakaria Ahmad Zakaria Amril Ma'ruf Siregar Angin, Geleng Perangin Anma Hari Kusuma, Anma Hari Aulia Vinandhitha Bustomi Rosadi Cesar, Irvan Tegar Djana, Miftahul Dyah Indriana Kusumastuti Elvida, Maharani Endro Prasetyo Wahono Fardilla, Hatwan Fitri Trisdiana Florince Florince Florince, Florince Hatwan Fardilla Hendri, Adit Pratama Hibatulloh, Muhammad Hafidh Idharmahadi Adha Idharmahadi Adha Ifadianto, Nugroho Ika Kustiani Irvan Tegar Cesar Ismawan Dewan Syah Mahardika, Siti Mardhotillah, Nur Anisa Martinus, Martinus Ofik Taupik Purwadi Puligadda, Lohit Krishna Pranav Purwadi, Ofik Taupik Putri, Wanda Noor Amalia Randy Setiawan, Randy Riki Chandra Wijaya Saputra, Fajar Ilham Setyanto Setyanto Simparmin br Ginting Siregar, Amril Ma'ruf Siregar, Amril Ma’ruf Siti Nurul Khotimah Siti Nurul Khotimah Subuh Tugiono, Subuh Susi Hariany Syah, Ismawan Dewan Trisdiana, Fitri Vinandhitha, Aulia Warikar, Yance Y D Wijaya, Riki Chandra Yance Y D Warikar