PWRI Technologies Information
The below is the technologies PWRI has developed.
NETIS Recommended technologies
- * Recommended technology
- Rumble Strips
(327KB)(FY2009 selected, Japanese only) - * Quasi Recommended technology
- Kui Taishin-SSP Method (495KB)(FY2009 selected, Japanese only)
PWRI Recommended Technologies
Following technologies are mature and aggressively have been promoted. For further details, visit the following link. (Japanese only)
| Technology | Technological Field | Technological Characteristics |
|---|---|---|
| The ALiCC (Arch action Low improvement ration Cement Column) method | Common | A design technology for low improvement ratio soft-ground stabilization using the idea of arch action |
| The Invairowan method | Common | An environment-friendly technique for on-site removal of coating film of steel structures |
| Pressurized fluidized bed incinerator with turbocharger | Sewage | A technology to combust sludge from sewage plants at low energy and generate new energy |
| Gas-liquid dissolving apparatus | Dam / River | Technology improving dissolved oxygen concentration at bottoms of dam reservoirs and lakes |
| Subsurface water level observation system for levee | River | A technology to bore a subsurface water level observation hole in a short time |
| The new high capacity micro pile method | Road | A technology to construct pile foundation even in narrow spaces |
| Multi-point slope failure monitoring system by optical fiber sensor | Road | A technology to measure slope displacement in wide areas using optical fiber sensors |
| Gravity thickening technology of sewage sludge using water path forming poles | Sewage | A technology to increase sedimentation rate of sewage sludge particle and provide denser thickened sludge |
| Exploration technology using Land Streamer | Common | A high resolution imaging technology for the near-surface |
| Advanced telemetry system | River | An automated investigation technology for migration routes of wild animals |
| Ultrasonic testing method for detecting fatigue crack in existing orthotropic steel decks | Road | Ultrasonic testing technique for detecting invisible fatigue crack at weld of orthotropic steel decks |
| Earthquake damage detection / evaluation system | Road | A technology to detect and evaluate the earthquake damage of bridges immediately |
| Groundwater investigation methods such as heating type groundwater prospecting method | Common | Heating type groundwater prospecting method using heater and temperature sensor, and groundwater tracing method using high density oxygen |
| The anti-corrosive reinforcement method for heavy duty coatings of steel bridge by titanium foils | Road | A technology to improve corrosion protection performance of corner parts that are hard to coat and rust easily by application titanium foil sheets |
| Test method for quick measurement of concrete unit water content using air meters | Common | A technology to evaluate concrete unit water content quickly and easily |
| Application of ecology cement concrete in construction | Common | Ecology cement can reduce environmental burden of municipal waste products |
| The High Grade Soil methods | Common | The methods to use low quality soil at construction site |
| Toxicity biosensor | River | A continuous monitoring system to detect toxic substances in water |
| Creating / checking system for HQ rating curve (HQ system) | River | A technology to obtain convenience in practical businesses and support creation of H-Q curve formula by data saving HQ system site
|
| Flow rate observation technology using non-contact current meter | River | A technology to solve problems including shortage of manpower, discontinuity of observation value and indeterminateness of peak flow rate |
| Speeding up and downsizing technology of water conduit for pump | River | A technology to downsize facilities of drainage pumping station |
| The seepage control method by improvement of soils around sluiceways | River | A technology to construct shielding membrane by improvement of soils against cavity and bleeding channel around sluiceways |
| The fracture direction controlled grouting method | Dam | A technology to improve foundation in imperviousness and strength and to effectively inject grout by control of direction of progressing fractures generated by grout |
| Boulder block fishway | River / Erosion and torrent control / Dam | A channel block to facilitate diversified velocity distribution depending on conditions and to reduce costs |
| Absorption storage method for digestion gas | Sewage | A technology to store digestion gas 20-30 times as much as usual low pressure technology |
| Erosion control method by bagasse mixing | Erosion and torrent control | An erosion control technology using bagasse (sugarcane trash) |
| Survey method for fissures in a rock mass by air tracer test | Road | A technology to correctly evaluate and estimate distribution of fissures and collapse-prone blocks in rock mass slope |
| Vibration reduction pavement | Road | A technology to reduce traffic vibration |
| Variant cross-section shield tunneling method | Road | A technology to excavate rational configuration tunnels suitable for high-degree application of underground space |
| Tunnel cross-section expansion method | Road | A tunnel cross-section expansion technology to shorten work period, reduce construction cost and shorten traffic control period compared to conventional method |
| Eco-friendly antifreezing technology for winter road surface | Road | Non-chloride antifreezing agent and its effective spreading |
| Structure antifouling technology | Road | An useful technology for maintaining structures finely |
