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Further information about items mentioned in these press
releases can be obtained by email from info2@fujita.co.jp
March 30, 2010
Halve the energy consumption of a rental office building, whilst retaining comparable construction costs.
Fujita Corporation has developed the environmentally-friendly Type "Diet-Archi Office" for a medium-sized rental office building. This plan lowers operational energy consumption by half, without increasing construction costs. In addition, we aim to acquire the best evaluation S rank in CASBEE (R) and improve the business benefits of the project.
Fujita will meet specific requests for environmentally friendly technologies and contribute to the spread of amenity rich environmentally-friendly buildings, using this model plan and the “Diet-Archi Navi” announced recently, giving a ‘concrete image’ of the building to the customer.
February 25, 2010
Instantly Calculate building life cycle CO2 emissions during the planning phase.
Fujita Corporation has developed and started operation of the “Diet-Archi Navi” system. This system instantly can calculate the building LCCO2 (Life Cycle CO2) and LCC (Life Cycle Cost) during the planning stage of building project when talking with customers. Highly economical, low CO2 designs can be optimized by use of continually-updated architectural data. This enables quickly understand environmental performance of the building.
August 06, 2009
Widening a tunnel on the main National Route while keeping traffic flowing.
Fujita Corporation successfully widened a tunnel on the arterial National Route, while allowing traffic to continue passing at the rate of 11,000 units a day. There were no prior cases in Japan where widening of existing tunnels more than 300 meters length, had used the protectors to allow continuing vehicular traffic during construction. In their work, Fujita produced a technical proposal that considered safety first and also reduced the burden on the motorist. The construction area was full opened on June 26th after a construction period with no traffic accidents.
July 18, 2008
Perspective the geological conditions ahead of tunnel face from outside.
Fujita and Japanese Geophysical Service Company (JGI,Inc.) succeeded in determining the geological conditions ahead of tunnel face by using a mechanical seismic source from outside of the tunnel. This method can be used to survey the geological conditions using vibration that is produced by a mechanical seismic source such as a hydraulic impactor at the tunnel entrance, before excavating the tunnel. Shallow Seismic Reflection survey for Tunnels (SSRT) was used to confirm the new technique’s effectiveness. The ability to determine Geology at low cost, will cause a shortening the construction period and to enhance a safety of construction and excavation.
March 11, 2008
Analysis technology to reduce urban coastal flooding disaster.
Fujita Corporation, in collaboration with “Kokankyo Engineering” and the “Port and Airport Research Institute”, developed a technology for "Overtopping hazard analysis". This method can analyze scenarios such as high waves in the harbor, coastal dikes and embankments, high waves over seawalls and shore protection facilities. Additionally a detailed assessment of flood risk to coastal business sites can be made.
This analysis can be used to plan best-practice disaster response and evacuation measures and thus maximize the asset value of the land.
July 31, 2007
Development of a pavement designed to mitigate the urban heat island phenomenon.
Fujita and Fujita Road have developed a “Photo Road method”. This new type of surface temperature reduction method is designed to reduce the urban heat island phenomenon. The “Photo Road method” already has the capability to purify of automobile exhaust gases. In this development a heat-shield coating that enhances water retention is combined with the photochemical surface. Together these technologies work to reduce road pavement surface temperature.
February 21, 2007
A world first : Practical-use Multi-function Low-Activation concrete for medical facilities.
Fujita Corporation has developed a new type of “Multi-function Low-Activation concrete”. The neutron radiation shielding is more than 1.7 times higher than a conventional concrete. An additional benefit is that the concrete has no shrinkage. The first use of this concrete has been in radiation shielding for a small cyclotron in PET medical imaging facilities.
*PET:Positron Emission Tomography
November 8, 2006
Establish business collaboration with US company Micro-Strain for integration the Construction and IT.
Fujita and Fujita Group Co., Ltd. FBS, established a business collaboration with Microstrain to develop a wireless measurement. The joint project will develop a measurement system optimized for wireless field measurements for a variety of civil engineering and construction applications in Japan.
Fujita will introduce the technology into its construction business to utilize and improve the quality and safety of its built structures.
September 29, 2006
Successful regeneration of reed beds using improved dredged soil.
Fujita Corporation in collaboration with the Lake Biwa-Yodo River water Quality Preservation Organization, successfully developed a base for regeneration of the submerged aquatic plant community. This Base was made from paper sludge "FT-Mudkira" and dredging soil from the lake.
Results are as follows:
- Nutrient elution can be suppressed.
- Reed growth is accelerated compared to conventional methods using river sand.
- Topographic changes such as consolidation settlement can be suppressed.
- There is no negative impact on water quality and aquatic life.
June 27, 2006
Measurement of segment movement in Shield tunneling using the wireless system.
Fujita Corporation, in cooperation with FBS, Ltd. developed a "Wireless Real-Time Measurement System for Shield segment (SRW Measurement System)". This system can measure the relative motion of each segment in continuosly when tunneling shield. The test occurred under construction site in Yokohama.
May 16, 2006
Succeeded to improve the water environment by FESTA ( Floating island Emerged and Submerged Vegetation ) method.
Fujita Corporation has tested the FESTA method (Floating island Emerged and Submerged Vegetation) in Bessho-Numa – a swamp in Saitama City. The FESTA method is an independently developed technology, designed to regenerate benthic communities to counteract a submerged plant decline or disappearance of vegetation, and to improve the transparency of lake water. Study results, showed concentration of suspended solids( SS ) due to blue-green algae was reduced by 70% in a week, 80% in a month and transparencies were improved. On the bottom, submerged vegetation (Potamogeton crispus L., Potamogeton perfoliatus L. and Potamogeton oxyphyllus Miq.) showed expansion and growth.
July 7, 2005
Use of unmanned construction methods using LAN support systems at a disaster recovery construction site
Fujita Corporation has further advanced unmanned construction technology through practical demonstration of a wireless LAN-based system. This system can broadcast from a control via a radio station to control video cameras and a remote wheeled dump truck. The construction works succeeded in transporting sediment from a distance of around 1km, proving the feasibility and efficiency of the system.
March 23, 2005
An application of an innovative rock-fracturing excavation method to in-service tunnels
Fujita Corporation has applied an innovative rock-fracturing method to create an escape tunnel connecting two major Japanese road tunnels (the Hinosan-tunnel on the Hokuriku Highway and the Kanechika-tunnel on the Chugoku Highway). The innovative FON drilling method uses conventional machines to drill continuous holes in the tunnel face and removes rock using fracturing machines. The connecting tunnel built in the project had a tunnel with a cross-section of 10 - 20 m2, and due to use of the FON drilling method we were able to excavate the tunnel in extremely hard rock without blasting methods near in-service tunnels for the first time in Japan.
March 17, 2005
An application of Fujita’s “Robo-Q” robot to construction sites
Fujita’s remotely-controlled “Robo-Q” robot system was originally developed for use in disaster recovery operations, but is now being successfully applied to more everyday tasks, such as chipping concrete surfaces of a tunnel. As a result, the operator is not exposed to working environments that are very poor due to noise and dust. Based on this success Fujita will apply the robot system to common construction sites in order to improve other kinds of poor working environments and safety matters for operators in addition to disaster restoration applications.
October 11, 2004
Fujita Corporation uses HMP (High Capacity Micro-pile) method for seismic strengthening of a water station
High Capacity Micro-pile (HMP) method is an innovative foundation technology developed in the USA. Fujita Corporation is currently using HMP for to seismically strengthen the foundations of a water station located at Kameido in central Tokyo. HMP is particularly suitable for such projects as it can be undertaken in confined spaces, and has bearing capacity for both compression and pullout with relatively small diameter piles. In this project, batter HMPs are being installed between existing piles at depths of more than 35m (The original piles were installed 35 years ago with φ600mm at 2m spacing).
04 October 2004
Issuing an annual environmental report “Fujita Eco Report 2004”
Fujita Corporation acknowledges that the construction industry is strongly connected with environmental issues, and puts emphasis on three primary policies: “reduction of environmental burdens in construction activities”, “contribution to comfortable environment through construction activities” and “establishment of an operational base with a strong commitment to environmental issues”. To show specific activities in detail, an annual report “Fujita Eco Report 2004” has been issued (http://www.fujita.co.jp/kankyo/Ekor-hp/E-report.htm).
09 September 2004
Business development of Fujita Corporation’s low-cost factory construction method
Fujita Corporation has been engaged in the development of a low-cost factory construction method called “FLF (Fujita’s Low-cost Factory)”. Recently the method has been improved and it is now possible to construct factories in just two and a half months at a construction price of US$1100 per 3,3m2 (for factories with a maximum span of 42m). The improved method can be applied to low-cost facilities construction s for various types of factories, shipping storages, shopping centers, gymnasiums and so on.
05 August 2004
Introduction of in-situ soil flushing method from USA to clean up contaminated soil and water
Fujita Corporation has introduced an “in-situ surfactant flushing method” from the USA to assist those of our clients who need to clean up soil and water contaminated by petroleum products. The characteristics of this technology are 1) the facility for flushing is very compact, 2) remediation works are possible while facilities like oil tanks are active. In the future, pilot scale projects will be undertaken in order to verify the effectiveness of this technology for Japanese soil, and an efficient remediation system with low-cost and short construction period will be established.
01 July 2004
Consecutive construction contracts from “ProLogis Corporation” for large- scale logistics facility
Fujita Corporation has already won three contracts from the Japanese affiliate of the US-based ProLogis Corporation for the construction of logistics facilities in Japan. These contracts were won on the basis of Fujita Corporation’s expertise and experience in working with foreign companies. Recently, Fujita Corporation has won two more ProLogis contracts, and one of them, “ProLogis park Yokohama” is the biggest logistics facility in the metropolitan area (with a total floor area of 119,660 m2 ). At the facility, a base-isolated structure will be used to maximize worker safety, protect client stock, and maintain asset value.
In future, Fujita Corporation will continuously support clients with suitable technologies and expertise from planning to construction stage to meet clients’ requirements.
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