Cel The only final drawback is a manufacturing process that is generally rather complicated for extensometers and pressure fiber optic sensors. Protocols of manufacturing are currently under definition in order to simplify the process and to improve its quality. In conclusion, the consortium can exhibit good results: 1. New fiber optic sensors have been developed (strain/displacement sensor, pressure sensor), show very good performances and the interface sensor-structure has been optimised; 2. These sensors are temperature compensated; 3. The sensors are well suited for multiplexing and distributed installation over large distance and over a large amount of sensors; 4. An acquisition system has been developed that can interrogate any wavelength mutiplexed sensors based on the FBG technology; 5. Two in-situ installations have been achieved and are currently running in order to prove the reliability of the sensors themselves and the system during the coming year.The proposed project aims the development of an accurate distributed stability control system based on fiber optic sensing technology.This system will be used in a hazardous mining area where excavation works, blasting and other mining operations are continuously performed.The successful installation of the stability control system will allow to modify the existing mining method and to develop in relation to the on-line stability control, a practical continuous excavation and backfill method, with less operational stops and dead time periods.To ensure accurate and reliable stability control a distributed sensing system will be required where strain and stresses are contuously recorded.The improvement due to fibre optic distributed sensing is fourfold :(i) the increased knowledge of the environmental conditions allows larger excavated caverns, with a higher ore recovery rate(ii) former and future support pillars could be exploited(iii) backfilling method and operation could be monitored(iv) the safety conditions in the mine can be improvedAs a consequence of these four facts, maximum ore reserves are expected to be exploited under safe conditions with conditions with high productivity and lower operating costs and safety and working conditions will be improved. Dziedzina nauki engineering and technologymechanical engineeringmanufacturing engineeringengineering and technologymaterials engineeringfibersengineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcontrol systemsengineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsensorsnatural sciencesphysical sciencesopticsfibre optics Program(-y) FP3-BRITE/EURAM 2 - Specific programme (EEC) of research and technological development in the field of industrial and materials technologies, 1990-1994 Temat(-y) 1.1.2 - Mining technology Zaproszenie do składania wniosków Data not available System finansowania CSC - Cost-sharing contracts Koordynator PIRIRTES ALENTEJANAS SA Wkład UE Brak danych Adres APARTADO 8 7600 ALJUSTREL Portugalia Zobacz na mapie Koszt całkowity Brak danych Uczestnicy (4) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko CSEM SA Szwajcaria Wkład UE Brak danych Adres MALADIERE 71 2007 NEUCHATEL Zobacz na mapie Koszt całkowity Brak danych Commissariat à l'Energie Atomique (CEA) Francja Wkład UE Brak danych Adres Centre d'Études de Saclay 91191 Gif-sur-Yvette Zobacz na mapie Koszt całkowity Brak danych Framatome SA Francja Wkład UE Brak danych Adres Tour Fiat 1 place de la Coupole 92084 Paris la Défense Zobacz na mapie Koszt całkowity Brak danych IDENTITY Belgia Wkład UE Brak danych Adres ISPRALAAN 75 2400 MOL Zobacz na mapie Koszt całkowity Brak danych
