Stability of existing Banyukuwung DAM in recent hydrology and geotechnical conditions

Juwono, Pitojo Tri; Asmaranto, Runi; Murdhianti, Ari

doi:10.21776/ub.civense.2020.00302.1

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…The scouring pattern that happens is very much influenced by discharge, riverbed slope, and time. The longer the water runoff occurs, and the greater the flow rate, the deeper and more prolonged the scouring occurs [8,9,13].…”

Section: Introductionmentioning

confidence: 99%

Analysis on The Effect of Groyne Type Impermeable Placement on Sediment Distribution in Lariang River Bend

Prasetyo¹,

Juwono²,

Sisinggih³

2021

Civense

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Sedimentation and erosion caused by differences in discharge is a problem that often occurs at river bends. One of the functions of placing the groyne is to reduce the river flow velocity along the riverbank, accelerate sedimentation, and ensure the embankment or river bank's safety against scouring. This study aimed to determine the distribution of current velocity, distribution of riverbed shear stress, and sediment distribution to the effect of groyne placement. There are 7 (seven) simulation models used to get the most effective groyne placement. From the model simulation results by adding a groyne building on the river's outer bend for the simulation model scenario 2 to scenario 7, the largest sedimentation production is in scenario 3, namely the height of riverbed sediment deposits 230 hours of 1.094 m. Furthermore, the groyne building's effective placement is determined based on a maximum change in the riverbed scenario. In scenario 3, the placement and dimensions of the groyne length of 17.5 m; distance between groyne 24.4 m; the groyne is inclined upstream in the direction of flow 10°

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Section: Introductionmentioning

confidence: 99%

Analysis on The Effect of Groyne Type Impermeable Placement on Sediment Distribution in Lariang River Bend

Prasetyo¹,

Juwono²,

Sisinggih³

2021

Civense

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“…Dams are constructed across rivers and valleys to retain water for protection from floods, water storage, diversion of water to canals in high lands, producing energy, and many more. Dams can be homogeneous (constructed using one type of soil) or zoned (consists of more than one type of soil with different hydraulic conductivities) [6,15]. A homogeneous dam is an embankment dam in with the material forming the dam's body consisting of 80% of materials with almost the same grade.…”

Section: Introductionmentioning

confidence: 99%

“…SEEP/W can model simple saturated steady-state problems or sophisticated saturated/unsaturated transient analyses with atmospheric coupling at the ground surface. Therefore, the seepage analysis in this study used SEEP/W software based on the finite element numerical method [15,16,17,20]. The location of the damage is determined at the top, middle and bottom.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Damage to the Geomembrane Layer on the Seepage Pattern and Discharge at the Homogeneous Embankment Dam

Wijayanto¹,

Juwono²,

Cahya³

2021

Civense

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Placing the geomembrane layer on the upstream slope can control the seepage in homogeneous dams. Poor geomembrane design, construction and maintenance caused damage to the geomembrane that caused a leak through the dam body. This study discusses the effect of damage on the geomembrane layer at the homogeneous embankment dam on the seepage pattern and discharge. The study location is in the Sianjo Anjo dam, Aceh Singkil district, a homogeneous dam with a geomembrane layer located in the dam body's upstream part. The damage of the geomembrane layer is assumed caused by the various defect of locations and size. The results show that the seepage pattern (phreatic line) tends to be weak in the geomembrane layer without damage. Meanwhile, if the geomembrane layer is damaged, the larger the defects' width, the higher the phreatic line. However, the seepage pattern that occurs shows insignificant or almost the same. The seepage discharge increases with increasing defect width and decreasing defect location

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Stability of existing Banyukuwung DAM in recent hydrology and geotechnical conditions

Cited by 2 publications

References 4 publications

Analysis on The Effect of Groyne Type Impermeable Placement on Sediment Distribution in Lariang River Bend

Analysis on The Effect of Groyne Type Impermeable Placement on Sediment Distribution in Lariang River Bend

The Influence of Damage to the Geomembrane Layer on the Seepage Pattern and Discharge at the Homogeneous Embankment Dam

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