Application Research of Optical Fiber Sensing Techniques in Karst Collapse Monitoring
In this paper, we compare the advantages and disadvantages of karst collapse monitoring technology.Combining with previous experience, we put forward a notion that combines BOTDR with FBG to monitor soil deformation of Karst Collapse.Through analysing the karst collapse geological conditions east of Tangshan river, we selected experiment fiber ,worked out laying scheme, and we described the test process in detail, explored the method of temperature compensation in the field, after repetitive data acquisition and analysis, we could conclude that optical fiber sensing technology could realize the multi-point positioning of rock and soil deformation, capture the rock and soil mass deformation and describe the collapse deformation boundary.By combining FBG with BOTDR in monitoring application, we can overcome the defects of the two monitoring methods, thereby obtaining all information of the collapse body,it has a useful application prospect.
Karst Collapse Optical Fiber Sensing monitoring
YANG Zhuojing HAO Wenjie
Centre for Hydrogeology and Environmental Geology,Survey,CGS Key Laboratory of Monitoring Technology of Geological Environment,MLR
国际会议
第十八届凯洛林国际地质学术研讨会(The 18th Kerulien International Conference on Geological)
石家庄
英文
705-709
2013-09-20（万方平台首次上网日期，不代表论文的发表时间）