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Melly Lukman
Fakultas Teknik Sipil Universitas Kristen Indonesia Paulus
Civil Engineering, Building, Construction & Architecture Transportation

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Analisis Volume Sedimen Berdasarkan Hasil Pengukuran Dengan Echosounder Dalam Waduk Bili-bili Kabupaten Gowa Elisa Trinofri Sanjaya; Melly Lukman; Benyamin Tanan
Paulus Civil Engineering Journal Vol 2 No 3 (2020): Volume 2, No.3, September 2020
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (370.689 KB) | DOI: 10.52722/pcej.v2i3.140

Abstract

The Bili-Bili Reservoir, Gowa Regency, South Sulawesi Province is a multipurpose reservoir built-in 1994. The Bili-Bili Reservoir was built with the aim of the management and utilization of water resources, as well as to prevent flooding in the rainy season. During its development, there has been a decline in the use of the reservoir service function due to the presence of sediment in the reservoir. From the results of measurements in 2017, at an elevation of +99.5 m (normal water level), the reservoir capacity decreased from 347.81 million m3 to 239.76 million m3 over 20 years due to a large amount of sediment in the Bili-Bili Reservoir. The total volume of sediment from 1997 - 2017 was 108,050 million m3. If this continues, the remaining useful life of the Bili-Bili Reservoir will not be effective. The purpose of this study is to determine the volume of sediment in the Bili-Bili Reservoir, Gowa Regency, South Sulawesi Province in 2019. This research is a field measurement using an Echosounder and secondary data collection in the form of a contour map of the Bili-Bili Reservoir. 1997. From the results of Echosounder measurements, a basic contour map of the Bili-Bili Reservoir in 2019 was made with the 1997 reservoir map, and cross-sections were made as to the basis for calculating the volume of sediment. Based on the results of research and calculations, the total volume of sediment in the Bili-Bili reservoir from 1997 to 2019 was 110,371 million m3 and in 2017 the total volume of sediment was only 108,050 million m³. The total sediment rate in 2017 to 2019 is 2,321 million m³.
Alternatif Perencanaan Terowongan Pengelak (Diversion Tunnel) Bendungan Pamukkulu Natalia Anga; Melly Lukman; Erni Rante Bungin
Paulus Civil Engineering Journal Vol 4 No 3 (2022): Paulus Civil Engineering Journal Volume 4 No.3
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (290.916 KB) | DOI: 10.52722/pcej.v4i3.503

Abstract

In the construction of the Pamukkulu Dam, the initial design used in planning the evasion tunnel was a horseshoe shape. However, in this study an alternative planning in the form of a circle is proposed.The regional average rainfall was calculated by the Thiessen Polygon method and the design rainfall analysis calculation with a return period of 2,5,10,25 years using the Gumbel method, Log Normal method, and Pearson Type III Log method. By using the distribution suitability test Smirnov-Kolmogorov Test and Chi- Square Test. The design discharge was analyzed using the Nakayasu. Synthesis Unit Hydrograph method.Based on the results of this study, the 25-year design flood discharge was 291.548 m3/second and the circular escape tunnel design was 6 m in diameter with an energy loss height of 11.821 m and the design height of the cofferdam crest was +85.571 m.
Studi Alternatif Perencanaan Bangunan Pelimpah Bendungan Pamukkulu dengan Tipe Mercu Bulat Yoclina Edita; Melly Lukman; Erni Rante Bungin
Paulus Civil Engineering Journal Vol 4 No 3 (2022): Paulus Civil Engineering Journal Volume 4 No.3
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (324.961 KB) | DOI: 10.52722/pcej.v4i3.507

Abstract

Spillway serves to overflow excess water to be discharged, so that the dam can be maintainedto the maximum extent. This Study aims to determine the flood discharge and to find out the alternative of the Pamukkulu Dam Spillway planning with the Mercu Bulat Type. Regional Average rainfall is calcuted by the Thiessen Polygon method. And analysed by calculating the design rainfall using the Gumbel method, Log Pearson Type III and Log Normal. Then determine the design flood discharge with a return period of 100 years using the HSS Gama Method 1. After calculating the design discharge,the Spillway planning is carried out with the Mercu Round Type. Based on calculations using the HSS Gama 1 method , the 100-yaer return period flood discharge is 219,099 m3/s and Spillway Building is a round crest with an energy height above the crest of 1,115 m.
Co-Authors Benyamin Tanan Elisa Trinofri Sanjaya Erni Rante Bungin Natalia Anga Yoclina Edita