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Effectivity of underwater dam for reducing reservoir sedimentation, case study: Cipanundaan reservoir, West Java, Indonesia

Author(s):




Medium: journal article
Language(s): English
Published in: IOP Conference Series: Earth and Environmental Science, , n. 1, v. 794
Page(s): 012018
DOI: 10.1088/1755-1315/794/1/012018
Abstract:

As one of dam priority in Indonesia, Cipanundaan dam faced severe problem related to the sedimentation. The sedimentation in Cipanundaan derived from both soil erosion and landslide (earth slide and earth flow) along the river. Based on analysis, total potential sediment reached until 137,819 m³, which is shortened the dam lifespan only for 10 years. This research is conducted the effectivity of application of underwater dam in order to maintain intake system. Three underwater dams are constructed for controlling 8 mm/year of sedimentation from both erosion and translational landslide. The numerical modelling used ANSEDIM program to develop surface sediment elevation in reservoir. The result showed the infrastructure is succesfully suspending sediment enter the system, thus, the dam has a longer lifetime. The research revealed that application of three underwater dams will reduce 2.5 times of sediment volume, increase up to 6 times of effective volume and extend the dam’s lifetime until 250% from existing condition. This outcome will be helpful to planner, engineers and managers for better managing of reservoir sedimentation and water resources.

License:

This creative work has been published under the Creative Commons Attribution 3.0 Unported (CC-BY 3.0) license which allows copying, and redistribution as well as adaptation of the original work provided appropriate credit is given to the original author and the conditions of the license are met.

  • About this
    data sheet
  • Reference-ID
    10781039
  • Published on:
    11/05/2024
  • Last updated on:
    05/06/2024
 
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