Susceptibility Evaluation of Debris Flow Disaster in Plateau Hydropower Cascade Development Reservoir Area

• Published in: Nature environment and pollution technology Vol. 22; no. 1; pp. 229 - 236
• Main Authors: Yang, Feng, Hu, Xudong, Xia, Zhenyao, Cui, Lei, Yang, Qi
• Format: Journal Article
• Language: English
• Published: Karad Technoscience Publications 01.03.2023
• Subjects: Altitude; Dam engineering; Dams; Damsites; Debris flow; Disasters; Engineering geology; Evaluation; Fault lines; Geological hazards; Geological structures; Geology; Geomorphology; Hydroelectric power; Hydroelectric power stations; Landslides & mudslides; Lithology; Methods; Precipitation; Project engineering; Rain; Rationality; Regression analysis; Regression models; Reservoirs; Risk assessment; rumei hydropower station, debris flow, binary logistic regression model susceptibility; Seismic engineering; Site selection; Topography; Tibetan Plateau
• ISSN: 2395-3454; 0972-6268; 2395-3454
• DOI: 10.46488/NEPT.2023.v22i01.021

The Rumei Hydropower Station is a typical cascade hydropower development project in a plateau area. The dam site is located in an area with complex topography, lithology, and geological structure. Geological disasters are developed in the area, mainly debris flow. Thus, taking the dam site and the surrounding areas as key evaluation objects, the engineering geological characteristics, geological environment characteristics, and the susceptibility and risk of geological disasters that may be caused are predicted and evaluated. The main methods used in this assessment are the binary logistic regression model and expert evaluation. The results show that the susceptibility to geological disasters is small and medium. The results of this study could provide a scientific basis for the rationality of the general layout and site selection of the project construction in the plateau water elevator level development reservoir area.