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H. Kahmen, M. Haberler-Weber, Z. Zhang, J. Guo:
"Multi Sensor Systems and a Conception for an Alert System for Landslide in the Three Gorges Area, China";
Talk: Symposium on Geodesy for Geotechnical and Structural Engineering, Berlin; 2002-05-21 - 2002-05-24; in: "Geodesy for Geotechnical and Structural Engineering II", H. Kahmen, W. Niemeier, G. Retscher (ed.); (2002), ISBN: 3-9501492-1-x; 250 - 255.

. Construction of the Three Gorges Dam with a generating capacity of almost 84x109 kWh on the Yangtze River, China, is scheduled for completion about 2009. Due to the geological conditions and the damming up of the water, severe landslides are to be feared. So monitoring systems and alert systems will have to be installed. A multi sensor system with a new monitoring concept is presented here. In a first step the taking-off domains of the landslides are detected by conventional geodetic monitoring like GPS or tacheometry. Then high-precision geotechnical sensors are installed across those borders of blocks with different velocity and acceleration to get as much information as possible of these interesting regions. Based on this continuous measurement concept, a knowledge-based system will be developed to support the decision making process and an alert system in the case of danger.