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http://dx.doi.org/10.12814/jkgss.2018.17.3.047

Analysis of Sewer Pipe Defect and Ground Subsidence Risk by Using CCTV and GPR Monitering Results  

Lee, Dae-Young (Geotechnical Engineering Research Division, Korea Institue of Civil Engineering and Building Technology)
Publication Information
Journal of the Korean Geosynthetics Society / v.17, no.3, 2018 , pp. 47-55 More about this Journal
Abstract
Recently, increasing number of urban ground subsidence occurrences has been identified. This situation is mainly due to the increased number of underground cavities. This study is intended to develop the method that prevents ground settlement caused by deteriorated or damaged sewers, which are the main cause of land subsidence. To that end, GPR exploration was conducted using CCTV monitoring of deteriorated sewer at the location with high settlement potential. Through such CCTV monitoring and GPR investigation, abnormal ground behavior was monitored at the site where sewer was damaged, joint was cracked and soil was deposited. According to site investigation in this study, evaluation method using correlation analysis of CCTV monitoring and GPR investigation results is expected to prevent ground settlement attributable to damaged sewer.
Keywords
Sewer pipe; Ground subsidence; Underground cavity; GPR; CCTV;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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