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KERN
Published by Universitas Pembangunan Nasional Veteran Jawa Timur
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Articles 3 Documents
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Search results for , issue " Vol 1, No 1 (2011): KERN" : 3 Documents clear
The Evaluation of Bedadung Watershed Continuance in Jember Region Kusuma, Desy Lainufarsari
Kern : Jurnal Ilmiah Teknik Sipil Vol 1, No 1 (2011): KERN
Publisher : Kern : Jurnal Ilmiah Teknik Sipil

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Abstract

The change of land around Bedadung watershed is influenced by the rate of population growth. The higher rate ofpopulation growth is in line with the required land necessity. In this case, the performance of watershed management isneeded to improve the function of both land and water area. This research aims to know the result of the examinedparameters classification including the parameters of water system, land use, social aspects, economic, and watershedinstitutions. This study used the calculation method in accordance with the Regulation of Director General of LandRehabilitation and Social Forestry on Guidelines for Monitoring and Evaluation of Watersheds (SK Dirjen RLPS2009). The research that was conducted in Bedadung watershed of Jember Regency which has 138319,6 hectares ofland area resulted that watershed performance with the parameter of water system is 1,475 in 2001 and 1,53 in 2017.Therefore, both of them are included into a good category with the value <1,7. Meanwhile, the watershed performancewith water catchment parameters in 2001 is 1,95 and 2,15 in 2017. Thus, both are included into passable category witha value of 1,7 - 2,5. The results of Bedadung watershed performance in 2001 is 1,6915 and it is considered as anexcellent condition with the value < 1,7. The results of Bedadung watershed performance in 2017 is 1,8143 andincluded into decent category with the value 1,7 – 2,5. Therefore, it can be concluded that the performance of Bedadungwatershed in 2017 is decreasing if it is compared to the performance of Bedadung watershed in 2001.Keywords: Bedadung Watershed, Evaluation, Performance
STUDY OF SEDIMENTATION RATE AT SAMPEAN BARU RESERVOIR USING HEC-RAS 5.0.3 Aviva, Yulia Nur
Kern : Jurnal Ilmiah Teknik Sipil Vol 1, No 1 (2011): KERN
Publisher : Kern : Jurnal Ilmiah Teknik Sipil

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Abstract

Reservoir is a water building that serves to collect water during the rainy season and release the discharge in the dry season. Sampean Baru Reservoir is located in Bunotan Village, Tapen District, Bondowoso. Sampean Baru Reservoir is used for irrigation needs and as a micro power plant. In addition to having many functions of the condition and maintenance of the reservoir must be considered. One factor that can reduce the functioning of the reservoir is sediment. The process of sedimentation is the sedimentation of erosion that is carried by the flow of water in a place where the flow slows down. So the higher the level of soil erosion, the more sediments are brought. In this study calculate sedimentation rate at Sampean Baru reservoir using HEC-RAS 5.0.3 program the areas reviewed for upstream that is Maesan and downstream that is on the Sampean Baru reservoir which has a length of 44.44 km. Sediment volume in 2004 amounted to 858,236.9195 m3. The calculation result using HEC-RAS program obtained sediment volume of 2.473.049 ton / th = 1.466.905 m3. So it can be seen from 2004 to  2017 there was an increase in sediment volume by 70.92%.
PERUBAHAN STRUKTUR BETON Kern, Jurnal
Kern : Jurnal Ilmiah Teknik Sipil Vol 1, No 1 (2011): KERN
Publisher : Kern : Jurnal Ilmiah Teknik Sipil

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Abstract

Perubahan struktur beton

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