Ground deformation detection along Beijing-Tianjin intercity railway using advanced network multi-baseline DInSAR

Abstract

Recent years, the application of multi-baseline DInSAR was primarily possible in the case of slow ground movements. In this paper, the application of Beijing-Tianjin intercity railway roadbed deformation monitoring based on multi-baselines DInSAR is present. To enable this, the advanced network algorithm is adapted for pixels linking. Our study is based on 15 ALOS PALSAR images during one-year period of 2008–2009. The results of current study indicate that the cumulate subsidence along most of the roadbed is about 0–10mm, which means the roadbed is relative stable during the first year running of the intercity railway.