Abstract
We have developed the large strain sensor used by BOTDR for monitoring of geomembrane sheet in coastal disposal site. The large strain sensor composes with the tight optical fiber and the slacked optical fiber to measure the small strain and large strain of the geomembrane sheet. We carried out the large size (3m length and 0.5m width) tension test and the middle size model loading tests to estimate the performance of the large strain sensor.
And we have recognized the basic performance of this sensor and we have investigated the specification of this strain sensor to use in the coastal disposal site.
