Soil Engineering and Foundation ›› 2019, Vol. 33 ›› Issue (6): 720-725.
The application of remote sensing in the investigation and evaluation of geological hazards can save significant labor and other costs. This paper presents the remote sensing results for the power transmission towers along Pengshen Line and Jiteng Line. The geological hazard identification, evaluation and rick analysis works are based on the high definition remote sensing images. The following conclusions can be made from the results: 1) Three geological hazard zones can be divided within the power line alignments: high hazardous zone, medium hazardous zone and low hazardous zone. Of a total of 146 towers in Pengshen Line, 62 towers are in the high hazardous zone, 22 towers are in the medium hazardous zone and 66 towers are located in the low hazardous zone. Of a total of 92 towers in Jiteng Line, 62 towers are within the high hazardous zone and 30 towers in the low hazardous zone. 2) Three risk zones are identified in all work zones: high risk, medium risk and low risk. The remote sensing identified 20 high risk zones with landslide hazards and 9 slope stability locations; 4 medium landslide zone and 2 low risk landslide zones are also identified. These results from the remote sensing are consistent with the actual ground reconnaissance.
