Shimakawahara Tunnel
Location
Shimakawahara Tunnel,
Japan
Sewage tunnel monitoring
Système:
System SOFO
Domain:
Domain Tunnels
Clients:
Start Year:
2003
End Year:
2003
Installation:
Keisoku Research Consultant Co., Ltd.
Short Description:
The Shimakawahara Tunnel was constructed in 1970s for flowing wasted water as a part of sewerage network. The
tunnel was made of concrete with height of 4,740mm, width of 4,200mm and length of about 5km.
Aims of monitoring:
Even a number of cracks have appeared spreadly and have been sealed with appropriate treatments, a reliable
monitoring system in which enable to grasp the structural health behavior is expected. To maintain the serviceability of
tunnel a monitoring is pro-posed by utilizing SOFO sensory technology. The aim of monitoring is to monitor the
structural health degradation due to environmental evolution and mechanical evolution such as dynamical stress of
streaming water. In order to monitor the global deteriorated structural deformational properties, 5 of 10m long-gage
optical fibers were installed.
Number of sensors:
0 Main results:
Periodical monitoring was performed once a year.
Sensor protection
Tunnel Cross-section
Related Papers:
-
Intelligent Sensory Technology for Health Monitoring Based Maintenance of Infrastructures, Sunaryo Sumitro, Takuji Okamoto, Daniele Inaudi, 11th SPIE's Annual International Symposium on Smart Structures and Materials, March 14-18, San Diego, USA , (2004)
