Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung
REKAYASA: Jurnal Ilmiah Fakultas Teknik Universitas Lampung (RJITS) is a peer-reviewed scientific journal that provides a national platform for the dissemination of research and development in the field of Civil Engineering and related disciplines. The journal focuses on publishing original research articles, technical papers, and case studies that contribute to the advancement of civil engineering theory, practice, and application. The scope of the journal includes, but is not limited to, the following areas: Structural Engineering Analysis, design, construction, materials, and performance of structures such as buildings, bridges, and towers. Geotechnical Engineering Soil mechanics, foundation engineering, slope stability, ground improvement, and geotechnical modeling. Transportation Engineering Planning, design, operation, and management of transportation systems including roads, railways, and traffic engineering. Hydraulic and Water Resources Engineering Hydrology, fluid mechanics, irrigation systems, drainage, flood control, and water supply systems. Construction Engineering and Management Project planning, scheduling, construction methods, cost estimation, and sustainable construction practices. Environmental Engineering Water and wastewater treatment, solid waste management, air pollution control, and environmental impact assessment. Materials in Civil Engineering Development, testing, and application of construction materials such as concrete, asphalt, steel, and composites. Urban and Regional Planning Infrastructure development, smart city planning, and sustainable urban systems. The journal welcomes contributions from academics, researchers, and professionals engaged in civil engineering and aims to foster innovation, knowledge sharing, and practical solutions in the field.
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<![CDATA[Analisis Tekno Ekonomi Pengembangan Jalur Kereta Api Rencana Areal Terminal Untuk Kepentingan Sendiri Pelabuhan Panjang ]]>
<![CDATA[komang rania]]>;
<![CDATA[Ika Kustiani]]>;
<![CDATA[Amril Ma’ruf Siregar]]>
<![CDATA[ REKAYASA: Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol. 29 No. 1 (2025): April 2025 ]]>
Publisher : <![CDATA[Jurusan Teknik Sipil Universitas Lampung ]]>
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DOI: 10.23960/rekrjits.v29i1.107
<![CDATA[Lampung is one of the provinces traversed by railway lines with mainstay train transportation, namely coal, fuel oil, pulp, and passenger transportation. The route used is the active route from Tanjung Enim-Tarahan. Along with that, there are several passive railway lines, one of which is the Pidada-Pelabuhan Panjang line. One of the impacts of the high level of road damage in Lampung is that transport is brought to Panjang Harbor via land transport (trucks and containers), so that the presence of rail transport can reduce road damage and environmental pollution. The aim of this research is, among other things, to find out, study and calculate the level of investment feasibility based on techno-economic parameters in the development of railway lines in the planned TUKS area at Panjang Harbor. This research is quantitative research using technical drawing data, RAB, Work Unit Price Analysis, and train fares obtained from PT. Indonesian Railways Lampung Province. Techno-economic analysis in the form of financial and economic feasibility is reviewed using the parameters NPV, IRR, BCR, and PP. The results of the analysis of the feasibility level of investment for developing a railway line in the TUKS area of Panjang Harbor show that the NPV, IRR, BCR, and PP values are positive and can be continued to the planning stage.]]>
<![CDATA[Pengaruh Penambahan Abu Sekam Padi Pada Tanah Lempung Menggunakan Uji Triaksial ]]>
<![CDATA[Tiara Ranti Lestari Tiara]]>;
<![CDATA[Sartika Nisumanti]]>;
<![CDATA[Ghina Amalia]]>
<![CDATA[ REKAYASA: Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol. 29 No. 1 (2025): April 2025 ]]>
Publisher : <![CDATA[Jurusan Teknik Sipil Universitas Lampung ]]>
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DOI: 10.23960/rekrjits.v29i1.115
<![CDATA[Clay soils characterized as soft soils often cause problems due to their weak bearing capacity and long consolidation time. Rice husk ash, which is one of the wastes derived from burning rice stalks and leaves, can be used to increase the bearing capacity of the soil. This research analyzed the effect of adding rice husk ash as a mixture in soil stabilization at 0%, 8%, 12% and 16%. Based on laboratory testing using soil samples from Jalan Merdeka RT 14 Bawah Alai Balai Agung Village, Sekayu District, South Sumatra. Bawah Alai, Balai Agung Urban Village, Sekayu District, South Sumatra. It is concluded that the effect of rice husk ash makes the shear angle of the soil smaller or reduced. The highest shear angle was obtained when the addition of 8% rice husk ash amounted to 9.373 kPa. When adding 12% and 16% rice husk ash, the shear angle of the soil decreased to 4.651 kPa and 4.288 kPa, respectively. The addition of variation in rice husk ash affects the cohesion value (c), overall it can be said that the value of soil shear angle increases with the lower variation in the soil mixture. ]]>
<![CDATA[Analisis Indeks Kinerja Sistem Irigasi Way Kandis untuk Optimalisasi Pengelolaan Sumber Daya Air ]]>
<![CDATA[Muhammad Hakiem Sedo Putra]]>;
<![CDATA[Keysha salsabila]]>
<![CDATA[ REKAYASA: Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol. 29 No. 1 (2025): April 2025 ]]>
Publisher : <![CDATA[Jurusan Teknik Sipil Universitas Lampung ]]>
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DOI: 10.23960/rekrjits.v29i1.121
<![CDATA[Penelitian ini bertujuan untuk menganalisis kinerja sistem irigasi Way Kandis dengan menggunakan pendekatan indeks kinerja, guna mengoptimalkan pengelolaan sumber daya air dan mendukung keberlanjutan pertanian. Metode yang digunakan melibatkan penilaian terhadap enam faktor utama, yaitu prasarana fisik, produktivitas tanaman, sarana penunjang, organisasi personalia, dokumentasi, dan sistem partisipasi masyarakat (IP3A/GP3A/P3A), yang masing-masing diberikan bobot untuk menghitung kontribusinya terhadap kinerja sistem irigasi. Hasil analisis menunjukkan bahwa kinerja sistem irigasi Way Kandis mencapai 55,41% dari bobot maksimum yang diharapkan, dengan kontribusi terbesar berasal dari prasarana fisik (25,17%). Meskipun produktivitas tanaman (9,68%) dan partisipasi masyarakat (7,29%) menunjukkan hasil yang cukup baik, sarana penunjang (1,39%) dan organisasi personalia (9,15%) masih memerlukan perhatian lebih. Penelitian ini merekomendasikan pemeliharaan infrastruktur irigasi yang lebih baik, peningkatan kapasitas SDM, penguatan sarana penunjang, serta peningkatan dokumentasi dan partisipasi masyarakat. Temuan ini diharapkan dapat memberikan kontribusi signifikan terhadap pengelolaan sumber daya air yang lebih efisien dan berkelanjutan di wilayah Way Kandis.]]>
<![CDATA[Analisis stabilitas lereng dan penanganan longsor di Kabupaten Lahat menggunakan HYRCAN ]]>
<![CDATA[Aurelius Silvanno Krisdiyanto]]>;
<![CDATA[Aminudin Syah]]>;
<![CDATA[Iswan Iswan]]>;
<![CDATA[Lusmeilia Afriani]]>
<![CDATA[ REKAYASA: Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol. 29 No. 1 (2025): April 2025 ]]>
Publisher : <![CDATA[Jurusan Teknik Sipil Universitas Lampung ]]>
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DOI: 10.23960/rekrjits.v29i1.126
<![CDATA[Penelitian ini bertujuan untuk mengetahui penyebab longsor serta melakukan analisis stabilitas lereng pada longsor di salah satu jalan lintas Kabupaten Lahat sebelum dan setelah diberi perkuatan. Metode penelitian yang dilakukan adalah survei lapangan, pengumpulan data tanah serta topografi, dan melakukan pemodelan lereng sebelum dilakukan analisis stabilitas. Software HYRCAN menjadi alat bantu dalam menghitung nilai stabilitas lereng dengan metode Morgenstern-Price. Berdasarkan hasil penelitian ditemukan bahwa hujan menjadi faktor pemicu utama terjadinya longsor pada area badan jalan tersebut. Selain itu jenis tanah yang didominasi oleh lempung serta kondisi kemiringan lereng yang curam menjadi faktor lainnya. Hasil analisis stabilitas menunjukkan nilai faktor aman pada kondisi eksisting sebesar 1,288 pada kondisi statis dan 1,013 pada kondisi dinamis. Peningkatan nilai faktor aman terjadi setelah diberi perkuatan, dengan nilai angka aman tertinggi dimiliki perkuatan soil nailing + shotcrete dengan nilai 1,665 pada kondisi statis dan 1,264 pada kondisi dinamis.]]>
