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All Journal Jurnal Teknik Sipil IPTEK Journal of Proceedings Series Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Media Ilmiah Teknik Sipil Jurnal Arsitektur ZONASI Portal: Jurnal Teknik Sipil Ge-STRAM: Jurnal Perencanaan dan Rekayasa Sipil Publikasi Riset Orientasi Teknik Sipil (Proteksi) Jurnal Pendidikan Teknik Sipil (JPTS) Scientica: Jurnal Ilmiah Sains dan Teknologi Kanigara
Nusantara, Danayanti Azmi Dewi
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Data Distribution Analysis of Alumni of the Civil Engineering Study Programme as a Response to LAMTEK Accreditation Standards Nusantara, Danayanti Azmi Dewi; Risdianto, Yogie; Wulandari, Meity
Jurnal Pendidikan Teknik Sipil Vol. 7 No. 1 (2025): June
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpts.v7i1.83289

Abstract

Background: A higher education quality assurance system through accreditation activities is necessary as an indicator for measuring the quality of higher education institutions to ensure that the needs of students and the community are met in accordance with established quality standards. This study aims to determine the achievements of graduates against the gold standard of Surabaya State University (UNESA), determine the time required for graduates to find their first job, evaluate the relevance of the field of study to the graduates’ fields of work, and identify the scale of their workplaces. Methods: Tracer Study data were collected from Civil Engineering undergraduate alumni graduating between 2019 to 2022. Data were gathered in 2023 through questionnaires administered through the UNESA tracer study website. The responses were analysed using quantitative descriptive methods and presented in the form of percentage-based graphs. Results: The distribution of Tracer Study data shows that the highest gold standard achievement was recorded in 2021, with 75% of alumni meeting the indicators. Regarding waiting time, more than 40% of graduates obtain their first job within three months across all years. The relevance between the field of study and the field of work reached over 40% for the ‘Very Relevant’ category, while the majority of alumni were employed in national-scale companies. Conclusion: According to the Tracer Study data distribution analysis, Unesa's Gold Standard achievement reached 75%. Furthermore, the short waiting period for employment indicates the high level of graduate readiness for the workforce. The strong relevance between academic fields of study and professional fields of work, along with the dominance of employment in national-scale companies, indicates that the Civil Engineering Study Programme at Unesa is relevant to the needs of the labor market.
Perencanaan Sistem Drainase Kawasan Perumahaan Opra City: Drainage System Planning For Opra City Housing Area Prayogo, Dio Jagat; Nusantara, Danayanti Azmi Dewi
Media Ilmiah Teknik Sipil Vol. 13 No. 3 (2025): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mits.v13i3.10272

Abstract

Opra City Housing, located in Menganti District, Gresik Regency, is a residential area that is vulnerable to waterlogging and flooding, particularly during the rainy season. This condition is mainly caused by high annual rainfall combined with a drainage system that has not been fully integrated or optimized. The study employs both hydrological and hydraulic analyses to provide solutions. Hydrological analysis is carried out to determine the design rainfall and to calculate the runoff discharge using the rational method, while hydraulic analysis is applied to define channel dimensions, the capacity of the retention pond, and the capacity of external drainage channels. Rainfall data were collected from several nearby rainfall stations and processed using the Thiessen polygon method. The design discharge was then calculated based on maximum rainfall intensity and surface runoff coefficients. The study results indicate a right-angled drainage network with a total runoff discharge of 4.517 m³/s. Prefabricated U-ditch sections are used as drainage channels, with the smallest dimensions of 0.3 × 0.2 m for tertiary channels and the largest dimensions of 2 × 1.4 m for primary channels. A retention pond measuring 80 × 80 × 1.5 m with a capacity of 9,600 m³ is also planned. Calculations show that the initial river discharge of 3.374 m³/s at a water level of 0.4 m increases to 7.891 m³/s after receiving runoff, while the river’s maximum capacity of 70.050 m³/s at a water level of 3 m ensures the flow remains safe. Overall, this drainage system is designed to effectively control runoff, reduce flood risk, and minimize environmental impacts on the surrounding area.
STUDY OF IMPROVING THE IRRIGATION NETWORK SYSTEM FOR THE SALURAN INDUK MADIUN (SIM) IN MAGETAN REGENCY Nusantara, Danayanti Azmi Dewi; Fawati, Isroul Akbar
Jurnal Teknik Sipil Vol 23, No 3 (2023): JURNAL TEKNIK SIPIL EDISI AGUSTUS 2023
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v23i3.68171

Abstract

The Saluran Induk Madiun, abbreviated as SIM, is the primary waterway that irrigates the SIM Irrigation Area. Jati Dam, located in Gondangan Village, Gorang-Gareng District, Magetan Regency, is the primary source of the SIM Irrigation Area. This SIM Irrigation Area gets its main supply from Jati Dam; Jati Dam is the upstream or the beginning of the flow in the SIM Irrigation Area. In conditions before rehabilitation, the Jati Dam had a discharge of 4000 l/s to irrigate the entire SIM Irrigation Area. Especially for the SIM Irrigation Area in Magetan Regency, obtaining water supply from the Jati Dam at 17% of 350,746 l/s, the discharge value can only meet the paddy cropping pattern of 30%. Looking at these problems, the Government of Indonesia is seeking rehabilitation work to increase agricultural barns production. Therefore, it is necessary to research the improvement of irrigation network systems to determine the ratio of water availability before and after rehabilitation, water demand, and the value of increasing agricultural profits. This research uses the F.J. Mock to assess the availability of water discharge FAO Modified Penman Method and the amount of evapotranspiration used to analyze water demand for each cropping pattern. A comparison of the value of the availability and demand for water is presented in the form of a water balance.From the results of the analysis that has been carried out, it is concluded that the highest water availability in the SIM Irrigation Area in Magetan Regency before rehabilitation was 1.37 m3/sec, and the lowest was 0.74 m3/sec. In conditions after rehabilitation, the highest was 5.75 m3/sec, and the lowest was 4.64 m3/sec. It is known that the supply from the Jati Dam, in conditions before rehabilitation, was 17%, and in conditions after rehabilitation, it increased to 28%. The highest irrigation water requirement is the cropping pattern that uses 100% paddy of 3.01 m3/sec. Seeing the value of water availability compared to the still significant water demand, the Jati Dam intake can be reduced from 28% to 20% so that the remaining water can be distributed to the following secondary waterways. Water availability at a percentage of 28% is 5.75 m3/sec; at 20%, it becomes 3.49 m3/sec. This debit can fulfill the highest water demand of 3.01 m3/sec. In conditions before rehabilitation, the availability of water was only able to meet the planting pattern of Paddy (30%) - Paddy (25%) - Secondary crops (100%) with a profit of Rp.26,161,069,519.00. Whereas in conditions after rehabilitation, the availability of water can fulfill the planting pattern of Paddy (100%) - Paddy (100%) - Paddy (100%) with a profit reach up to Rp.115,325,883,740.00.
CALIBRATION ANALYSIS OF RAIN DISCHARGE MODELING IN THE KALIBODO WATERSHED USING HEC-HMS Nusantara, Danayanti Azmi Dewi; Dianeka, Belia Tatika Arno
Jurnal Teknik Sipil Vol 23, No 3 (2023): JURNAL TEKNIK SIPIL EDISI AGUSTUS 2023
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v23i3.67787

Abstract

The Kalibodo sub-watershed is among the Brantas sub-watersheds. The sub-watershed under consideration is situated within the administrative boundaries of Malang Regency. A recurring issue of flooding afflicts the area in question. Floods are influenced by alterations in land utilization, insufficiency of water catchment regions, and elevated precipitation levels. Efforts can be made to address the flooding issue by implementing a hydrological analysis in rain-discharge modeling. The modeling process is conducted using the Hec-HMS software tool. This modeling endeavor aims to acquire hydrological values that closely resemble the observed data. This parameter is a metric for assessing the volume of water flowing through a river. The methodology employed in Soil Conservation Service (SCS) is based on the Curve Number (CN) approach. The method encompasses several parameters: CN, Tlag, Ia, and impervious values. The model calibration process utilizes an input CN value of 77.66 and an impenetrable value of 16.77.Moreover, the analysis of rainfall is conducted using the Thiessen Polygon approach, which considers the influence of rain stations located in Singosari, Sumbergondo, and Karangploso. The present analysis yielded weighting values of 0.457, 0.096, and 0.447 for the Singosari, Sumbergondo, and Karangploso rain stations. The calibration process lost a Nash-Sutcliffe Efficiency (NSE) value of 0.994. Simultaneously, the root mean square error (RMSE) exhibits a value of 0.4. The matter in question is classified as outstanding due to its proximity to an NSE value of 1 and an RMSE value close to 0, indicating a minimal error rate
EVALUATION OF NGABEAN SECONDARY CANAL IRRIGATION NETWORK, NGAWI DISTRICT PART OF SALURAN INDUK MADIUN IRRIGATION AREA Nusantara, Danayanti Azmi Dewi; Hartiningsih, Poppy Fajar Putri
Jurnal Teknik Sipil Vol 24, No 1 (2024): Vol 24, No 1 (2024): JURNAL TEKNIK SIPIL EDISI FEBRUARI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i1.75862

Abstract

The SIM Irrigation Area has an area of 10,860 Ha and a primary canal length of 27,022 m, which passes through the Regencies of Madiun, Magetan, Ngawi, and Madiun City. One of the secondary canals in the D.I SIM is the Ngabean Secondary Canal, located in Ngawi Regency. This canal receives the main water supply from Jati Dam, 25% of the primary dam discharge and water withdrawal from the Ngabean Dam intake of 0.45 m3/ha. However, this value only meets the water needs of some of the irrigation areas. Due to the limited supply from the Jati Bendung, the government is working on rehabilitation work at the Jati Bendung. Apart from that, the Ngabean Secondary Canal also experienced a reduction in the irrigation area from 1840 ha to 1818 ha, to be precise in the NG3 Ki tertiary plot, which had an initial area of 120 ha to 98 ha. Therefore, an evaluation of the Ngabean Secondary Canal is needed to determine the value of water demand, water availability before and after rehabilitation and land reduction, and increasing agricultural profits.From the results of the analysis that has been carried out, it was concluded that the highest dependent flow at Ngabean Dam was 5.00 m3/s, and the lowest was 0.01 m3/s. Meanwhile, in conditions before rehabilitation, the highest dependent flow of Jati Dam was 1.01 m3/s, and the lowest was 0.00 m3/s with water withdrawal at the intake of 25%, able to fulfill the planting pattern of paddy (15%)-crops (75%)-crops (50%) generated a production profit of IDR 8.794.123.880,00. Meanwhile, after rehabilitation, the highest was 5.93 m3/s, and the lowest was 3.21 m3/s with an intake of 32%, able to fulfill the planting pattern of paddy (100%)-paddy (100%)-paddy (100%), resulting in a production profit of IDR 83, 564,115,480.00 with the highest irrigation water requirement value of 3.10 m3/sec. Apart from that, the existing canal dimensions still meet the requirements after land reduction, so no changes to the canal dimensions are required.
Co-Authors abdiyah amudi Amanda Ristriana Pattisinai Anwar, Nadjadji Ardiansyah , Sahrul Romadhon Desy Ratna Arthaningtyas Dianeka, Belia Tatika Arno Fawati, Isroul Akbar Feriza Nadiar Fitri Rohmah Widayanti Hartiningsih, Poppy Fajar Putri Kameswara, Nanda Galuh Lynda Refnitasari Mochamad Firmansyah Sofianto Mohamad Bagus Ansori Nastasia Festy Marginia Prayogo, Dio Jagat RISDIANTO, YOGIE Wulandari, Meity