한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2006년도 춘계 학술발표회 논문집
- /
- Pages.1110-1119
- /
- 2006
온도센서 배열 모니터링에 의한 매질의 투수성 및 절리 연결성 연구
A Study on the medium seepage and the fracture connectivity by using temperature monitoring with thremal line sensors
- Kim, Jung-Yul (Soam Consultant Co., Ltd.) ;
- Kim, Tae-Hee (Groundwater Resources Group, Groundwater & Geothermal Resources Division, Korea Institute of Geoscience & Mineral Resources) ;
- Kim, Yoo-Sung (Soam Consultant Co., Ltd.)
- 발행 : 2006.03.24
초록
If water flows through a narrow passage into a medium that keeps the equilibrium of temperature, it causes small temperature difference and makes a temperature anomaly. The seepage or leakage often observed at old dams is a representative example of bringing about a temperature anomaly. Therefore, temperature measurements have been regarded as one of excellent methods that can detect the situation of seepage or leakage. However, because existing temperature measurement methods are based on a single sensor, the application of the method to the whole structure is nearly not possible in technical and economical phases. This paper introduces a temperature monitoring system using a thermal sensor cable that is comprised of addressable thermal sensors connected in parallel at many positions within a single cable. Through various laboratory and field experiments, it has been proved that the temperature monitoring technique can give an useful information about permeability of a medium or connectivity of fractures which have been regarded as difficult problems.
키워드