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Establishing a monitoring network for an impoundment-induced landslide in Three Gorges Reservoir Area, China

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Abstract

A methodology for monitoring system of an impoundment-induced landslide in Three Gorges Reservoir Area, China is introduced. Currently, based on landslide geological classification, the monitoring regions and methods which include types of monitoring instruments, placement and calibration precision of instruments, and appropriate periods for instrumental placement is confirmed. To optimize the monitoring system, sensitivity analysis of displacements and the water table in landslides affected by reservoir surface fluctuation is completed to determine the layout of the monitoring cross sections and the monitoring points. As a case study, the behavior of displacements and the potential fluctuation of the water table in the Shiliushubao landslide, produced by the gradual water impoundment at Three Gorges Reservoir, has been simulated using 3D finite element method analysis. The sensitivity analysis of Shiliushubao landslide is investigated by the fuzzy set evaluation method. As a result, the monitoring network of Shiliushubao landslide is established.

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Acknowledgments

This research is supported by the fund from the Ministry of Land and Resources P.R.C, the Department of Science and Technology of Hubei Province, and the Department of Education of Hubei Province. The authors are grateful to the generous support provided by the Key Laboratory of Geological Hazard and Control of Three Gorges Reservoir Area (China Three Gorges University), Chinese Ministry of Education.

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Correspondence to Xianqi Luo.

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Luo, X., Wang, F., Zhang, Z. et al. Establishing a monitoring network for an impoundment-induced landslide in Three Gorges Reservoir Area, China. Landslides 6, 27–37 (2009). https://doi.org/10.1007/s10346-008-0140-5

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  • DOI: https://doi.org/10.1007/s10346-008-0140-5

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