River & Sabo

River &
Sabo

We model and analyze all kinds of water and sediment transport processes such as flow, sediment runoff, riverbed evolution, sedimentation in dam reservoirs, and debris flow in order to understand various problems related to rivers, erosion control, dam reservoirs, and to study countermeasures and planning.

One-dimensional hydraulic analysis of river channels

One-dimensional varied flow analysis of river channels

One-dimensional riverbed evolution analysis

One-dimensional riverbed evolution analysis (river channel section)
One-dimensional riverbed evolution analysis (analysis of sedimentation in dam reservoirs)
One-dimensional riverbed evolution analysis (study of the effects of slit dams, perforated dams, etc.)
One-dimensional riverbed evolution analysis (analysis of placed sediment runoff)

Two-dimensional flow analysis

Two-dimensional flow analysis
Two-dimensional flow analysis using unstructured grids
Two-dimensional flow analysis and calculating scour depth (extent) around piers using flow analysis results

Two-dimensional riverbed evolution analysis

Two-dimensional riverbed evolution analysis (river channel section)
Two-dimensional riverbed evolution analysis (analysis of sedimentation in dam reservoirs )

Three-dimensional flow analysis

Three-dimensional flow analysis
Flow analysis of selective intake in dam reservoirs (full three-dimensional)

Debris flow analysis

Debris flow analysis (study of the effects of erosion control facilities)
Debris flow analysis (two-dimensional inundation analysis / orthogonal and unstructured grids)

Sediment runoff analysis

Sediment runoff analysis

Two-dimensional analysis of landslide surge in dam reservoirs

Two-dimensional analysis of landslide-surge in dam reservoirs

Flow analysis	Three-dimensional flow analysis around wands Study of the impacts from piers by three-dimensional flow analysis Flow analysis around river groynes Quasi two-dimensional varied flow analysis in river channels Study of the flow capacity of small and medium-sized rivers by one-dimensional unsteady flow analysis Hydraulic analysis of diversion channels
Riverbed evolution analysis	Analysis of riverbed evolution considering trees in river channels Prediction of two-dimensional riverbed evolution around bridges Prediction of the flush of river mouth sandbars Study of the sediment management in river basins Riverbed evolution analysis for nature restoration
Erosion control and sedimentation in dam reservoirs	Prediction of changes in riverbed and grain size composition downstream of dams Study of making erosion control dams into slit dams Study of sedimentation management in dam reservoirs
Debris flow analysis	Flow-down and inundation analysis of debris flow Study of the effects of steel slit dams Study of the impacts of landslide dam failure
Others	Inundation analysis due to dam failure and rise in riverbed upstream of dam Prediction of landslide surge heights in dam reservoirs

Flow analysis

Three-dimensional flow analysis around wands
Study of the impacts from piers by three-dimensional flow analysis
Flow analysis around river groynes
Quasi two-dimensional varied flow analysis in river channels
Study of the flow capacity of small and medium-sized rivers by one-dimensional unsteady flow analysis
Hydraulic analysis of diversion channels

Riverbed evolution analysis

Analysis of riverbed evolution considering trees in river channels
Prediction of two-dimensional riverbed evolution around bridges
Prediction of the flush of river mouth sandbars
Study of the sediment management in river basins
Riverbed evolution analysis for nature restoration

Erosion control and sedimentation in dam reservoirs

Prediction of changes in riverbed and grain size composition downstream of dams
Study of making erosion control dams into slit dams
Study of sedimentation management in dam reservoirs

Debris flow analysis

Flow-down and inundation analysis of debris flow
Study of the effects of steel slit dams
Study of the impacts of landslide dam failure

Others

Inundation analysis due to dam failure and rise in riverbed upstream of dam
Prediction of landslide surge heights in dam reservoirs

River &
Sabo

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Osaka (Headquarters)

Tokyo Office

Kyushu Office

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Hydro-STIV

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