Abstract
Conventional geotechnical instruments for slope monitoring have limitations such as low accuracy, poor reliability, difficulties in mounting sensors, etc. This paper presents an innovative slope monitoring system based on fibre Bragg grating (FBG) sensing technology. This system is designed to perform accurate monitoring of slope movements, strains and stresses along soil nails and other slope reinforcement elements. A trial of this fibre optic monitoring system has been successfully conducted on a roadside slope in Hong Kong. The FBG sensors were installed on a soil nail, a solider H-pile, and an in-place inclinometer. The paper shows the layout and arrangement of the instruments as well as the installation procedures adopted. The results from fibre optic sensors are presented and analyzed. This trial has demonstrated the good potential of the fibre optic slope monitoring system for use in long-term monitoring of slope performance.
| Original language | English |
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| Title of host publication | 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering |
| Publication status | Published - 1 Dec 2011 |
| Event | 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2011 - Hong Kong, Hong Kong Duration: 23 May 2011 → 27 May 2011 |
Conference
| Conference | 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2011 |
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| Country/Territory | Hong Kong |
| City | Hong Kong |
| Period | 23/05/11 → 27/05/11 |
ASJC Scopus subject areas
- Soil Science
- Geotechnical Engineering and Engineering Geology