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All Journal TEKNIK MEDIA KOMUNIKASI TEKNIK SIPIL JURNAL KARYA TEKNIK SIPIL Teras Jurnal
Dwi Kurniani
Dwi Kurniani Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro Jl. Prof. Soedarto, SH, Tembalang, Semarang 50275
Civil Engineering, Building, Construction & Architecture Engineering Environmental Science

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PERENCANAAN SALURAN DRAINASE BERSUMUR RESAPAN DI LINGKUNGAN KAMPUS UNIVERSITAS DIPONEGORO TEMBALANG-SEMARANG Daru Kumala wibihestusri; Hamanda Arief Wiranaba; Priyo Nugroho P.; Dwi Kurniani
Jurnal Karya Teknik Sipil Volume 2, Nomor 3, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

The problem that often happen nowadays is flood in rain season and drought in dry season. The other problem is land degradation for infiltrating water caused by environment changes which is land development effect. One of problem solving and ground water conservation effort at Diponegoro University Campus Area is to build drainage with infiltration well. This drainage with infiltration well is expected to reduce run off water caused by development at Undip campus area. This designing process does the hidrology analysis with rainfall data for 15 years at Sta. Gunungpati, Sta. Banyumeneng, and Sta. Pucanggading. The hidrology analysis for this design use normal probability distribution and rational method with rain repeat period 2 year. This hidrology analysis results are post-development flow (Qpascapembangunan) 4,633 m3/s and pre-development flow (Qprapembangunan) 2,357 m3/s so it can be know that development caused increasing flow (∆Q) 2,277 m3/s. The analysis result is used to design the drainage channel and infiltration well. In this design, the drainage channel at Undip campus is still good to use so it is just need to build infiltration well. Infiltration well dimension is 0,5 m diameter, 1,2 m depth and 3 m length between infiltration wells. There is water catchment box and infiltration well’s cover on the top each infiltration well. Water catchment box dimension is 0,8 m length, 0,8 m width and 0,1 m height, while infiltration well’s cover dimension is 0,6 m diameter and 5 cm width. The existencies of drainage with infiltration well can absorb water about 11,885 % from run off flow caused by development (the differential flow between pre-development and post-development) , that calculated with method for Research Effect of Hydrology and Hydraulic Caused by Infiltration Well Combination at Drainage System with infiltration well condition. To determine the effectiveness of the water absorption from infiltration well, this study is calculated water absorption for a year in 2011. This calculation is using two intensity approaching methods, namely: Mononobe Method and Alternating Block Method (ABM). From these calculations predicted drainage with infiltration well that can absorb water 12.051% - 43.660% of the discharge rain, so the volume of absorbed water reach 600,000 m3.
TANGGUL SUNGAI SERAYU HILIR DARI MUARA HINGGA BENDUNG GERAK SERAYU Riade Yusuf Hernanda; Robert M. Nainggolan; Suseno Darsono; Dwi Kurniani
Jurnal Karya Teknik Sipil Volume 5, Nomor 1, Tahun 2016
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Flood is a condition where water is overflowing in the discharge channel (river) caused by the inability of the cross section of the river in accommodating the flood discharge. Serayu river always brings floods every year, especially in the area of Banyumas and Cilacap. Flood debit plan used in the analysis of a cross section of Serayu river from the moving weir Serayu to estuary in Cilacap uses a return period of 50 years. Flood debit plan was analyzed by using SCS-CN method (Soil Conservation Service - Curve Number) with the help of software HEC-HMS. From the analysis of flood debit value of the plan, namely: Junction 12 amounted to 2088.4 m3/second, the junction 13 at 2417.1 m3 second, and 15th junction of 1386.9 m3/second. Existing cross-sectional analysis of Serayu river was done by using HEC-RAS software. The output of the HEC-RAS software is used to determine the location of planning the embankment, which is in areas experiencing river water overflowing. Central Java Serayu Downstream Embankment planning will be done with an estimated construction cost of Rp. 63,131,000,000.00 (sixty three billion one hundred and thirty one million rupiah) with a duration of work for 18 weeks.
KAJIAN KINERJA SISTEM POLDER DENGAN BALANCE SCORECARD Mega Asiska Ninda Pratiwi; Nuraini Nuraini; Hari Nugroho; Dwi Kurniani
Jurnal Karya Teknik Sipil Volume 5, Nomor 1, Tahun 2016
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Semarang especially in coastal area or better known as “Semarang bawah” has experienced land subsidence by 7 cm / year. This makes the ground water level in that area is lower than sea level. The result was a tidal flood happened in Semarang. The government tried to solve this problem by making Polder system. However, the fact is in the rainy season in the coastal areas was still flooding in. In other words, the performance of polder system was not optimal. Some polders that were used to assess the performance of polder in this study have not been able to reduce the impact of flood optimally. Therefore, it needed studies performance of each polder to determine polder ability in overcoming the flood. This study observed 4 polders in Semarang, which are Semarang River Polder, Banger Polder, Tanah Mas Polder and Tawang Polder. This performance is measured by the five critical areas that became reference of Balance Scorecard in assessment, that are Agency Management, Customer Satisfaction, Internal Processes, Finance and Expenditure & Development. The method used is descriptive analysis, quantitative and weighting with AHP (Analytical Hierarchy Process). Balance Scorecard method on a field tested performance different weights on each field performance. The result of different weighting, which is calculated using the AHP is obtained ranks as follows Tanah Mas Polder (370/500), Banger Polder (348/500), Tawang Polder (296/500) dan Semarang River Polder (287/500). The result calculation of polder effectiveness is the polder ability in reducing flood at Polder Banger by 56% and Semarang River Polder by 59%.
PERENCANAAN PENGEMBANGAN PELABUHAN TANJUNG EMAS SEMARANG Aditya Perwira Aji; Brahmandita Paramarta; Sutarto Edhisono; Dwi Kurniani
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

As one of the strategic port of Tanjung Emas Port in Semarang Indonesia can not be separated from a variety of problems. From the analysis, in 2012 the capacity of the Port of Tanjung gold almost exceeded the maximum limit. In the container dock and public piers ideal has exceeded its ideal capacity. Protection of the pier from the brunt of a wave also not enough. Wave height reaches 71 cm in the dock being critical limit allowed is 50 cm. Another issue that still has not been able to overcome the level of land subsidence in the port area is very rapid at 14, 63 cm / year, so many areas in  lower elevation of the sea level . Because of that, rob at high tide occurs in some port areas. To overcome these shortcomings and to develop. From the analysis planned, towards the development of the Port of Tanjung Emas include lengthening container dock along 300 mx 25 m, the expansion of container yard area of 15 hectares, the elongation of breakwater along 150 m and the polder planning system as a protection against tidal.
Kajian Kinerja Sistem Polder sebagai Model Pengembangan Drainase Kota Semarang Bagian Bawah dengan Balanced Scorecard Hari Nugroho; Dwi Kurniani; Mega Asiska; Nuraini Nuraini
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 22, Nomor 1, JULI 2016
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (788.099 KB) | DOI: 10.14710/mkts.v22i1.12508

Abstract

One of the technological flood control and rob in the big cities is the polder system that include drainage systems , retention ponds, levees that surround the area, as well as the pump and / floodgates, as the area of integrated water management system. Likewise, as the coastal city of Semarang in Indonesia has built some of the polder which has been in operation or under construction. To assess the success of the polder management, necessary for a study to determine the performance of the system in controlling the flood in Semarang. Assessment of performance of the system as a whole polder in this study used the concept of the Balanced Scorecard (BSC). The results of this study demonstrate the performance of the polder in Semarang is an ideal: Polder Tanah Mas (73.81 / 100), then Polder Banger (67.21 / 100), Polder Kali Semarang (58.70/100) and the Polder Tawang (58.65/100). The performance of the Polder system above can not be separated from the existence of an independent governing body and had been prepared much earlier. So the presence of the governing body needs to be prepared in the polder system development. To improve performance, the polder-existing polder in Semarang needs to be improved its performance by improving the performance indicators is still less based on this research primarily on indicators: financial, management agencies and learning and development.
Optimasi Operasi Danau Rawa Pening dengan Program Dinamik untuk Pemanfaatan Sumber Daya Air yang Optimal Dyah Ari Wulandari; Sriyana Sriyana; Salamun Salamun; Dwi Kurniani; Albert N. Tristanto; Zelly Rinaldi; Reza Kandriani; Anisa R. Rahardiyanti
TEKNIK Vol 42, No. 3 (2021): December 2021
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v42i3.33765

Abstract

Danau Rawa Pening merupakan waduk alami yang mempunyai fungsi untuk melayani kebutuhan air irigasi, air baku air minum, PLTA, perikanan, pariwisata, serta pemeliharaan Sungai Tuntang. Berkurangnya kapasitas tampungan Rawa Pening akibat sedimentasi menyebabkan berkurangnya fungsi pelayanan Rawa Pening. Mengingat pentingnya fungsi Danau Rawa Pening dimana kinerja operasi waduk eksistingnya hanya mempunyai keandalan sebesar 60 % maka diperlukan analisis pengoperasian waduk untuk mengoptimalkan pemanfaatan potensi sumber daya air yang tersedia. Operasi waduk merupakan aturan untuk memanfaatkan sumber daya waduk berdasarkan pertimbangan sumber daya yang tersedia dan kebutuhan yang diperlukan dalam pengoperasian yang optimum berdasarkan hasil analisis. Tujuan dari penelitian ini adalah untuk mendapatkan pedoman pengoperasian waduk guna peningkatan pemanfaatan potensi sumber daya yang tersedia. Penelitian dilakukan dengan membuat model optimasi operasi waduk dengan program dinamik. Tahapan analisis yang dilakukan adalah analisis kebutuhan air, analisis inflow waduk, perumusan model optimasi, melakukan optimasi dan menganalisis kinerja waduk hasil optimasi. Berdasarkan hasil analisis didapatkan kurva aturan operasi waduk dengan keandalan 86%.
PENINGKATAN PEMANFATAAN DANAU RAWA PENING Wulandari, Dyah Ari; sriyana, sriyana; Salamun, Salamun; Kurniani, Dwi; Tristanto, Albert Nico; Rinaldi, Zelly
Teras Jurnal : Jurnal Teknik Sipil Vol. 11 No. 2 (2021): Volume 11 Nomor 2, September 2021
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v11i2.477

Abstract

Abstrak Danau Rawa Pening mempunyai peranan sebagai reservoir alami yang dimanfaatkan untuk PLTA, sumber air baku, irigasi, perikanan, dan pariwisata serta pemeliharaan Sungai Tuntang. Salah satu permasalahan di Danau Rawa Pening adalah sedimentasi yang berdampak pada menurunnya kapasitas tampungan, oleh karena kondisi Danau Rawa Pening saat ini maka diperlukan upaya penanganan untuk meningkatkan pemanfaatan Danau Rawa Pening guna mendukung kegiatan irigasi pertanian, perikanan, pariwisata, supply air baku dan pembangkit listrik. Tujuan dari penelitian ini adalah untuk menganalisis peningkatan pemanfaatan Danau Rawa Pening yang merupakan waduk alami, tidak mempunyai intake dan pelimpah seperti waduk - waduk pada umumnya. Pengaturan outflow dari danau ada di Bendung Gerak Jelok yang berjarak ± 5 km dari outlet danau. Oleh karena itu peningkatan pemanfaatan danau akan dilakukan dengan membuat intake dan pelimpah sehingga pengeluaran dapat diatur sesuai kebutuhan yang diperlukan Tahapan analisis yang dilakukan adalah analisis kebutuhan air, analisis ketersediaan air, analisis laju sedimentasi, analisis kebutuhan tampungan dan analisis kinerja. Berdasarkan hasil analisis peningkatan pemanfaatan Danau Rawa Pening dapat dilakukan dengan membuat intake pada elevasi + 460,5 m dan pelimpah pada elevasi puncak + 462,72 m. Pada kondisi ini dapat disediakan tampungan efektif sebesar 31,9 juta m3, tampungan mati sebesar 1,264 juta m3 dan tampungan utk perikanan dan pariwisata sebesar 10,311 juta m3, dengan kinerja pelayanan 89%.Kata kunci: Sedimentasi, peningkatan pemanfataan danau, Danau Rawa Pening Abstract Lake Rawa Pening has a function as a natural reservoir that is used for hydropower plants, raw water, irrigation, fisheries, tourism and maintenance of the Tuntang River. The problems in Lake Rawa Pening is sedimentation which has an impact on decreasing storage capacity. Because of the current condition of Lake Rawa Pening, efforts are needed to improve the use of Lake Rawa Pening to support irrigation, fisheries, tourism, raw water supply and power generation. The purpose of this study was to analyze the increase in the utilization of Lake Rawa Pening. Lake Rawa Pening is a natural reservoir, does not have intake and spillway like ather reservoirs in general. The outflow arrangement from the lake is at Jelok Weir which is ± 5 km from the lake outlet. Therefore, increasing the use of lakes will be carried out by building intake and spillway so that release can be adjusted according to the demand. The stages of the analysis carried out are water demand analysis, water availability analysis, sedimentation rate analysis, storage needs analysis and performance analysis. Based on the results of the analysis of increasing utilization of Lake Rawa Pening, it can be done by building intake at an elevation +460.5 masl and spillway at elevation of +462.72 masl. In this condition, an effective storage capacity of 31.9 million m3, a dead storage capacity of 1,264 million m3 and a storage for fisheries and tourism of 10.311 million m3 can be provided, with performance of 89%.Keywords: Sedimentation, Increased use of the lake, Lake Rawa Pening
Co-Authors Abdul Kadir Adi Setyo Christanto Aditya Perwira Aji Aditya Yoga Kusuma Albert N. Tristanto Andin Cipto Nugroho Andin Cipto Nugroho, Andin Cipto Anisa R. Rahardiyanti Arianto Nugroho Brahmandita Paramarta candrawati Mareta Prawarti Daru Kumala wibihestusri Dyah Ari Wulandari Dyah Ari Wulandari Eka Cahyaningsih Hamanda Arief Wiranaba Hari Nugroho Hari Nugroho Hary Budieny Hary Budieny Hasan Mudhofar Hasan Mudhofar, Hasan Kirno Kirno Mega Asiska Mega Asiska Ninda Pratiwi Nuraini Nuraini Nuraini Nuraini Priyo Nugroho P. Rahayu Cahyaning Ratri Reza Kandriani Riade Yusuf Hernanda Robert M. Nainggolan S. Reza Pradana S. Suripin Salamun Salamun Salamun Salamun Sri Sangkawati Sachro Sriyana Sriyana Suharyanto Suharyanto Suseno Darsono Sutarto Edhisono Tristanto, Albert Nico Wahyu Setia Prihardhani Zelly Rinaldi Zelly Rinaldi, Zelly