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Journal : International Journal Engineering and Applied Technology (IJEAT)

EVALUATION LIFETIME SERVICE AND CAPACITY OF THE KADUMALIK DAM RESERVOIR Utamy Sukmayu Saputri; Yuli Suharnoto; Asep Sapei; Niels vuegen
INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) Vol. 5 No. 1 (2022): International Journal of Engineering and Applied Technology (IJEAT)
Publisher : Nusa Putra University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (952.031 KB) | DOI: 10.52005/ijeat.v5i1.57

Abstract

The dam is a construction of water structures built across the river. The function of the dam is to hold and store water, both rain water, river water and water from the lake which will then form a reservoir. Kadumalik Dam is one of the projects of the Directorate General of Water Resources (SDA) of the Ministry of Public Works and Public Housing (PUPR) which will be built in 2020 on an area of 500 Ha. The purpose of building Kadumalik Dam is to meet the irrigation needs of the Irrigation Area (D.I) and meet diverse water needs, but the dam can also pose a great risk as well, namely the risk of accumulation of sedimentation. Sedimentation is one of the factors that is very influential in dam management. A large sedimentation rate will speed up the service life of the reservoir so that the planned reservoir function can be disrupted. Therefore this research is important to know how much the dam capacity and how old the dam service. This study uses analytical calculation methods for sediment transport based on observations and calculation methods with efforts to handle sedimentation. Based on the results of the analysis, the sedimentation rate in the Kadumalik Reservoir is 2.71 tons / ha / year and is classified as an erosion hazard class I or very light erosion rate, calculation of the method with sedimentation handling measures results in the analysis of the Sediment Control Building (BPS) can control 2.2 million m3 of sediment, so that it can extend the reservoir service life to 50 years.
THE UTILIZATION OF DRILL CUTTING WASTE FOR BRICK MANUFACTURING Utamy Sukmayu Saputri; Yuli Suharnoto; Asep Sapei; Niels vuegen
INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) Vol. 3 No. 2 (2020): International Journal of Engineering and Applied Technology (IJEAT)
Publisher : Nusa Putra University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1218.554 KB) | DOI: 10.52005/ijeat.v3i2.63

Abstract

Chevron Geothermal Salak, Ltd (CGS) as one of the Geothermal Power Plants, to increase geothermal reserves, CGS conducts drilling and as is well known this activity produces a lot of drill cutting waste material so that it can quickly fill the temporary storage area. To overcome this, efforts should be made to reduce and / or utilize the waste. The effort is to use the material as a mixture of brick manufacturing. The purpose of this study is to be able to know the use of drill cutting waste as a raw material for brick manufacturing, to know the properties or characteristics and quality of drill cutting waste, and to be able to know the composition of the drill cutting waste mixture for brick manufacturing. The compositions used is drill cutting waste, soil stabilizer, and cement. In this study the compressive strength test was carried out at a maximum age of 28 days. It aims to find out the best mixture composition in the brick manufacturing, so that it gets high quality and can be used in the field. The results of this study can be concluded that by utilizing drill cutting waste as a material for making concrete blocks, it has achieved a compressive strength of 21.74 MPa that meets the quality requirements of concrete bricks in the quality level category IV. The brick products produced from the use of drill cutting can be used for drainage channels, trash container, pond walls, and retaining wall.