GIS-based landslide susceptibility mapping for a problematic segment of the natural gas pipeline, Hendek (Turkey)


Cevik E., Topal T.

ENVIRONMENTAL GEOLOGY, cilt.44, sa.8, ss.949-962, 2003 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 44 Konu: 8
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1007/s00254-003-0838-6
  • Dergi Adı: ENVIRONMENTAL GEOLOGY
  • Sayfa Sayıları: ss.949-962

Özet

A segment of natural gas pipeline was damaged due to landsliding near Hendek. Re-routing of the pipeline is planned, but it requires the preparation of a landslide susceptibility map. In this study, the statistical index (Wi) and weighting factor (Wf) methods have been used with GIS to prepare a landslide susceptibility map of the problematic segment of the pipeline. For this purpose, thematic layers including landslide inventory, lithology, slope, aspect, elevation, land use/land cover, distance to stream, and drainage density were used. In the study area, landslides occur in the unconsolidated to semi-consolidated clayey unit and regolith. The Wf method gives better results than the Wi method. Lithology is found to be the most important aspect in the study area. Based on the findings obtained in this study, the unconsolidated to semi-consolidated clayey unit and alluvium should be avoided during re-routing. Agricultural activities should not be allowed in the close vicinity of the pipeline.