Article Per Year (5 Year)
p-Index From 2020 - 2025
0.23
P-Index
This Author published in this journals
All Journal JURNAL TEKNIK HIDRAULIK
Ranisa Ghafara
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Screening Analysis Stabilitas Lereng Bendungan Urugan Akibat Gempa Di Indonesia Mahdi Ibrahim Tanjung; Reza Nirwana Sari; Ranisa Ghafara
JURNAL TEKNIK HIDRAULIK Vol 8, No 1 (2017): JURNAL TEKNIK HIDRAULIK
Publisher : Pusat Litbang Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1594.925 KB) | DOI: 10.32679/jth.v8i1.215

Abstract

The 2010 seismic hazard map shows the acceleration of the maximum design earthquake (MDE) scenario has increased approximately 2 fold, this case raises the question of how the dam designed by the pervious seismic load. Today Indonesia has more than 210 large dams. Therefore it is necessary to do screening analysis to find out which dam needs to be more detailed analysis and which are not. Screening analysis is done for embankment dam with fondation not on soft soil, or on the body or foundation of the dam there is a material that can lose shear strentgh due to dynamic load. Screening analysis begins with determining a typical dam for use in parametric studies of embankment parameters, variation of slope, and seismic loads on the safety of slope stability due to earthquake. The parametric study were then used as a basis for screening of embankment dam seismic slope stability. From 38 rockfill dam analyzed, all of them passed the screening under MDE scenario, and from 55 earthfill dam 40% of them not pass the screening on the 50% remaining free board requirement due to MDE scenario so that further analysis was needed. Previously to know the seismic slope stabilit of embankment dam doe to seismic hazard map revision, usually done one by one analysis with pseudostatic method, in this paperfor the first time in Indonesia applied screening analysis for slope stability analysis of dam due to earthquake.
PENILAIAN RISIKO KEAMANAN BENDUNGAN DI JAWA TIMUR Maria Asunta Hana Pramudawati; Mahdi Ibrahim Tanjung; Ranisa Ghafara
JURNAL TEKNIK HIDRAULIK Vol 11, No 2 (2020): Jurnal Teknik Hidraulik
Publisher : Pusat Litbang Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jth.v11i2.631

Abstract

Dam risk assessment is basically a additional to a standard-based approach, which is a conservative approach to dam engineering. For existing and new dams, dam risk assessment aims to determine whether existing hazard risks can be tolerated, and if hazard risks cannot be tolerated, actions to reduce risk are planned. Risk assessments for existing dams can also be used as a basis for determining priorities in carrying out the required repair or rehabilitation work. This paper discusses the dam risk assessment at Sengguruh Dam, Sutami Dam, Lahor Dam, Wlingi Dam, Bening Dam, Wonorejo Dam and Selorejo Dam. The methods used in risk assessment include the preparation of risk assessments, risk analysis, risk evaluation, risk reduction and management. These seven dams are managed by one manager, namely PJT I and are considered to be representative of this method that can be used to determine the priority value of dam handling. Based on the results of the assessment, the 7 dams fulfill the risk criteria. The next action that can be taken for these dams is to monitor the dam's behavior on a regular basis and in the aftermath of the earthquake, renew and socialize the RTD. 
Co-Authors Mahdi Ibrahim Tanjung Mahdi Ibrahim Tanjung Maria Asunta Hana Pramudawati Reza Nirwana Sari