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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan MEDIA KOMUNIKASI TEKNIK SIPIL JMTS: Jurnal Mitra Teknik Sipil Jurnal Teknik Indonesia Journal of Literature Review
Ratih Pujiastuti
Universitas Darul Ulum Islamic Centre Sudirman GUPPI
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Social Sciences Transportation Other

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Pengaruh Land Subsidence terhadap Genangan Banjir dan Rob di Semarang Timur Pujiastuti, ratih; Suripin, Suripin; Syafrudin, Syafrudin
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 21, Nomor 1 (2015)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3892.319 KB) | DOI: 10.14710/mkts.v21i1.11225

Abstract

Inundation of flood and rob (flood due to high tides) in Semarang City is increase wtithin area and depth. It be more seroius condition because of land subsisdence that happened in coastal area of Semarang City. This research is foccused on prediction and mapping of inundation flood and rob due to land subsidence effect in East Semarang, especially Tenggang Watershed and Sringin Watershed. On this research, data analysis including analysis of land subsidence, analysis of hydrological data, analysis of flood discharge with HEC-HMS, hydraulics analysis with HEC-RAS and then mapping the results of the flood inundation with Arc GIS. The inundation will be create with overlay the DEM of flood water level and DEM of topographic. According to the results of analysis is known that minimum land subsidence is 0 cm/year that happened in south area of Semarang and more higher ini north area with maximum land subsidence is 5.58 cm/year. On periode   2014-2031, the contribute of land subsidence to increase the inundation of flood and rob is 1.39%/year.
STUDI SEDIMENTASI GUNA PENENTUAN UMUR RENCANA WADUK PADA WADUK JATIBARANG KOTA SEMARANG: Umur Rencana Waduk Ratih Pujiastuti; fitria pra; Risdiana Cholifatul Afifah
JMTS: Jurnal Mitra Teknik Sipil Volume 6, Nomor 3, Agustus 2023
Publisher : Prodi Sarjana Teknik Sipil, FT, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmts.v6i3.23685

Abstract

Salah satu permasalahan pada operasional sebuah waduk adalah sedimentasi. Kapasitas tampungan waduk dipengaruhi oleh volume sedimen yang masuk ke waduk. Akibat sedimentasi dapat berpengaruh terhadap umur waduk. Untuk menanggulangi permasalahan sedimentasi pada waduk perlu diketahui perkiraan volume sedimen yang masuk ke waduk. Analisis jumlah sedimen yang masuk ke Waduk Jatibarang dilakukan dengan menjumlahkan total sedimen layang dan sedimen dasar. Simulasi dilakukan selama umur rencana waduk yaitu 50 tahun. Sedimen layang dihitung dengan menurunkan persamaan dari data pengukuran debit air dan konsentrasi sedimen. Sedimen dasar dianalisis melalui pendekatan rumus empirik dari Meyer-Petter Muller. Adapun total perkiraan sedimen yang masuk ke waduk selama 50 tahun adalah sebesar 7.629.799,05 m3. Selanjutnya perhitungan sedimen yang mengendap dilakukan dengan metode trap efficiency oleh Brune dan menghasilkan nilai sebesar 6.643.514,71 m3. Dari perhitungan diketahui volume akhir waduk pada tahun ke-50 adalah 13.756.485,29 m3. Sedimen yang mengendap di waduk diperkirakan sebesar 132.870,29 m3 per tahun. Dengan menggunakan data volume dead storage berdasar data teknis waduk 6.800.000 m3, dihitung sisa volume yang ada yaitu sebesar 156.485,29 m3. Perhitungan sisa umur waduk diperoleh dengan membandingkan sisa volume dengan volume sedimen per tahun. Berdasarkan hasil analisa, dapat disimpulkan bahwa rencana umur Waduk Jatibarang adalah 51,1 tahun. Kata Kunci: sedimentasi, sedimen layang, sedimen dasar, trap efisiensi, Waduk Jatibarang
Sistem Endokrin: Sebuah Kajian Studi Literatur Apriani Esma; Nurisma Mega Putri; Sinta Nabela; Ratih Pujiastuti; Yulianing Sukma; Miftakhul Janah; Liss Dyah Dewi Arini
Journal of Literature Review Vol. 1 No. 2 (2025): JULI-DESEMBER
Publisher : Indo Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/zqg8mc04

Abstract

The endocrine system is a network of glands that produce and release hormones into the bloodstream to regulate various bodily functions. These hormones influence growth, metabolism, reproduction, mood, energy balance, and stress response. Each endocrine gland, such as the hypothalamus, pituitary, thyroid, parathyroid, pancreas, adrenals, ovaries, and testes, has its own function and produces different hormones. The endocrine system operates at a slower rate, but its effects are comprehensive and long-lasting, making it crucial for long-term physiological stability. Disruptions to this system can lead to serious illnesses requiring specialized medical treatment. This literature review synthesizes and contributes to the development of endocrinology and serves as a reference for medical practitioners, researchers, and students in understanding the complexity of the human body's hormonal regulatory system. This review uses a literature review method, with steps that include identifying, selecting, and synthesizing relevant research findings.
Long-Term Rainfall and Temperature Trends in East Java Under Climate Change Pujiastuti, Ratih; Suharyanto, Suharyanto; Wulandari, Dyah Ari; Nuramini, Tika Morena
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 1 (2026): March 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v23i1.272-284

Abstract

At present, climate change is a global issue affecting the entire world, including tropical countries such as Indonesia. Previous studies have indicated that changes in these conditions have grave impacts on hydrological disasters. Therefore, the pattern of climate change needs to be analyzed for the feasibility of adaptation and mitigation in the future. This present study developed analyses into the trend in temperature variation over East Java both on an annual and daily time scale. Observation data within a long period from 1985 to 2023 was used for comprehensive results. Methods applied include linear regression, the Man-Kendall test, and Sen's Slope test. The new finding that emerged for the temperature variable was that the increase in temperature went over the global and national averages and consistently showed a significant increasing trend across the study area. However, the rainfall variable revealed different results in highlands, where the rainfall intensity decreased-in SDII and R100, inversely proportional to coastal areas. It means that climate change does not occur uniformly everywhere but varies spatially. These findings raise a case for climate change mapping to formulate appropriate adaptation and mitigation strategies.
PENELUSURAN BANJIR KOLAM RETENSI SUSUKAN KECAMATAN UNGARAN TIMUR KABUPATEN SEMARANG Anita Khairul; Diyah Fatmawati; Ratih Pujiastuti; Totok Apriyanto
Jurnal Teknik Indonesia Vol 4, No 2 (2023): JTI (Jurnal Teknik Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v4i2.493

Abstract

Floods are natural disasters that occur in an area due to the inability of drainage channels or many rivers, in overcoming the flooding problem that occurred a problem that occurred in, Susukan District, East Ungaran District, the Semarang Regency Government has taken action by constructing a retention pond. This research aims to analyze the capacity of the retention pond.This research required data: topographic data, rainfall data and geotechnical soil data. The analysis carried river watershed and hygrological analysis which includes: determining average rainfall, planned flood discharge, flood routing and calculating the stability of the spillway building.From the results of the hydrological analysis, the flood discharge value obtained using the gamma I unit hydrograph method for a 5-year return period was 21,53 m3/second. In flood investigations, an outflow value of 21.11 m3/second was obtained with an overflow height of 1,65 m.
DESAIN KOLAM PEREDAM ENERGI BENDUNG PLAOSAN KABUPATEN SEMARANG Eric Afrida; Totok Apriyanto; Ratih Pujiastuti
Jurnal Teknik Indonesia Vol 4, No 1 (2023): JTI (Jurnal Teknik Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v4i1.414

Abstract

Hydraulic aspect of the weir is important factors in planning a stilling basin. Remaining energy on the stilling basin is expected to be as minimal as possible so that scour does not occur on the river bed. Plaosan Weir does not yet have a stiiling basin structure. Therefore it is necessary to recommend the design of stiliing basin.The analysis carried out hydrological analysis, including calculating return period rainfall, flood discharge (Q) using the Haspers method, and calculating Froude number (Fr) to determine pond type. Based on the recommendations for the type of stilling basin, a building design is carried out and also stability of design..From the results of calculation it is obtained that 50-year return period rainfall is 108.68 mm. Planned discharge for 50 years is 186.06 m3/s, and froude number : 4. The appropriate type of stilling basin is USBR Type IV. The pond is planned to have a length of L = 17 m, with a block face width of 0.68 m, height of 1.36 m, distance between front blocks of 1.69 m and total of 13 pieces. The results of stability control analysis during normal water conditions and flood water conditions produce values above the safety factor so that it can be concluded that the design is planned qualify.
PERENCANAAN ULANG VOLUME EMBUNG PUSPORENGGO KECAMATAN MUSUK KABUPATEN BOYOLALI Joko Susilo; Didik Kurniawan; Totok Apriyanto; Ratih Pujiastuti
Jurnal Teknik Indonesia Vol 4, No 1 (2023): JTI (Jurnal Teknik Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v4i1.415

Abstract

Pusporenggo Smalldam was built in Pusporenggo Village, Musuk District, Boyolali Regency. This reservoir was built to meet the needs of raw water Pusporenggo Village.The analyzes carried out include: analysis of watershed area, analysis of raw water needs and calculation of reservoir volume. From the analysis, watershed area of Pusporenggo Smalldam  is 0.339 km² with a river length of 1,281 km. Sediment volume: 15,083.61m³, infiltration volume: 26,101.97m³, evaporation volume: 1,436.55m, volume of raw water requirement: 104,407.88m³. From the volume calculation, it is known that the Pusporenggo Reservoir requires a reservoir volume of: 147.030.00m³. As for the initial design, the Pusporenggo Embung is planned with a spillway elevation of +501.50 and a volume of 234.532.60m³. It can be concluded that this reservoir can be used to fulfill water requirement for other areas.e
STATISTIKA DESKRIPTIF T-TEST UNTUK MEMPERMUDAH PEMILIHAN DATA DARI HASIL PENGUJIAN BETON MENGGUNAKAN SPSS 16.0 Nevy Risna Dyah Kumala; Ratih Pujiastuti
Jurnal Teknik Indonesia Vol 3, No 1 (2022): JEI (Jurnal Engineering Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v3i1.362

Abstract

This study discusses the application of descriptive statistics in the world of construction projects to analyze and interpret the data under study. Considering that time is a crucial thing in the project, it is necessary to have auxiliary tools to increase the time usage effectively for all important elements in the construction project. One of them is to shorten the time to analyze research results from testing concrete or concrete mixtures with case studies. To achieve maximum results, it takes a lot of samples that produce a lot of data. Hence, this study tries to use T-Test analysis of descriptive statistics which can help compare related groups to find out whether there are differences between groups. The results of the case study showed that there was no significant difference between concrete with normal mixture and other mixtures. Thus, the results of the study analysis can be concluded immediately whether the quality of the concrete according to the design criteriaKeywords: Descriptive Statistic, T-Test, The Quality of concrete
REDESIGN SHORE PROTECTION KAWASAN INDUSTRI KENDAL (KIK) Fachri Fatkhur Rizal; Endro Sulistriono; Totok Apriyanto; Ratih Pujiastuti
Jurnal Teknik Indonesia Vol 5, No 1 (2024): JTI (Jurnal Teknik Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v5i1.546

Abstract

Abrasion incidents on the coastline in the KIK area continue to occur and cause the area boundaries to decline. so that appropriate coastal protection structures are needed. The aim of this research is to carry out re-planning in the Kendal Industrial Area (KIK) in the future area boundary plan. In carrying out this research, daily wind data for the period 2017 - 2023 is needed from a nearby location, namely the Tanjung Emas Maritime Meteorological Station, Semarang. The analysis carried out includes fetch, windrose, wave calculations, building design and force calculations in shore protection construction. From the results of the windrose analysis, the dominant wave direction is northwest. Analysis of waves in the deep sea obtained a height value of 2.45 m and a wave period of 8.32 sec. Based on the calculation results, breaking waves will occur at a depth of 2.02 m. Because the building location is at a depth of 2m, where breaking waves occur, the breaking wave height is used in building planning. The coastal protection building chosen is shore protection construction or a tetrapod sea wall. Peak elevation of 4.76 meters, peak width of 3.55 meters, building base length of 22.45 meters, back slope of 1:1, arm slope of 1:2, the first type of protective layer material uses tetrapods, second and third layer using split stone pairs with 2 size combinations.
REDESAIN BENDUNG KEDUNG JERUK KECAMATAN PRINGAPUS KABUPATEN SEMARANG Paryanto Paryanto; Wibisono Handoko Putro; Totok Apriyanto; Ratih Pujiastuti
Jurnal Teknik Indonesia Vol 3, No 2 (2022): JEI (Jurnal Engineering Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v3i2.366

Abstract

Water is one an important element that can affect life in nature. To increase water resources, a long-term and short-term strategy is needed. Kelampok River has not been utilized optimally by the community. For this reason, it is necessary to build a weir that serves to raise water level. The planning for the construction of the Kedung Jeruk Weir in Pringapus District, Semarang Regency aims to improve the socio-economic environment in the surrounding area.The redesign is based on secondary data with other supporting data. The analyzes carried out include: hydrological analysis, planning dimensional, analysis of the stability of the weir body, and the safety of the weir body.From the results of the hydrological analysis which includes the calculation of planned rainfall using the Thiesen Polygon method and flood discharge using the Synthetic Unit Hydrograph (HSS) Gama 1 method, the water requirement for irrigation in Pringapus Village is 0.3091 m3/s and the 50th flood discharge is 206, 01 m3/s. Weir width 36 m with 0.83 m high weir. The width of the weir crest is 30.4 m, the flushing width is 3.6 m and the pillar width is 2 m (2 Pillars 1 m each). The radius of the weir of the round threshold type is 0.8 m, the stilling pool type is USBR Type III with a length of 9 m. The value of stability during normal water conditions and flood water conditions is still above the safety value so that the weir building meets the requirements and is safe.
Co-Authors Anita Khairul Apriani Esma Didik Kurniawan Diyah Fatmawati Dyah Ari Wulandari Endro Sulistriono Eric Afrida Fachri Fatkhur Rizal fitria pra Joko Susilo Liss Dyah Dewi Arini Miftakhul Janah Muhamad Irvan Nevy Risna Nevy Risna Dyah Kumala Nuramini, Tika Morena Nurisma Mega Putri Nurwakhid Nurwakhid Paryanto Paryanto Risdiana Cholifatul Afifah S. Suripin Sinta Nabela Suharyanto Syafrudin Syafrudin Totok Apriyanto Totok Apriyanto Totok Apriyanto Totok Apriyanto Undayani Cita Sari Wibisono Handoko Putro Yulianing Sukma