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Article

Application of Flow Velocity and Direction Measurement System in Slope Stability Analysis

1
College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China
2
Petrochina Hangzhou Research Institute of Geology, Hangzhou 310023, China
3
Ocean College, Zhejiang University, Zhoushan 316021, China
4
College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310007, China
*
Author to whom correspondence should be addressed.
Academic Editor: Francesco Gallerano
Water 2021, 13(5), 700; https://doi.org/10.3390/w13050700
Received: 1 February 2021 / Revised: 24 February 2021 / Accepted: 1 March 2021 / Published: 5 March 2021
(This article belongs to the Section Hydraulics and Hydrodynamics)
Hydrodynamic pressure is often a crucial factor in the evaluation of slope stability analysis, especially for many rainfall-triggered landslides. Nevertheless, hydrodynamic pressure is rarely considered in the traditional limit equilibrium slice method of slope stability analysis since effective and reliable hydrodynamic pressure data are often lacking in practice. Moreover, efficient methods to involve these data in slope stability analysis are an urgent need. To overcome these concerns, the flow velocity and direction system (FVDS) is employed to measure the groundwater flow velocity, which can be used to generate hydrodynamic pressure samples at different monitoring points. Based on these samples, the hydrodynamic pressure of each soil strip is estimated using artificial neural networks (ANNs). Afterward, an improved Bishop method that considers hydrodynamic pressure is proposed. The effectiveness and significance of the proposed method are illustrated with a case study, the Fanshantou landslide in Zhejiang Province, China. The safety factor before and after taking drainage countermeasures is also calculated and compared. The results indicate that hydrodynamic pressure plays an important role in the stability analysis of the Fanshantou landslide. Compared with the classical Bishop method, the improved method is shown to agree better with the actual deformation characteristics of the landslide. View Full-Text
Keywords: landslide; slope stability analysis; hydrodynamic pressure; groundwater monitoring; artificial neural networks landslide; slope stability analysis; hydrodynamic pressure; groundwater monitoring; artificial neural networks
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MDPI and ACS Style

Ge, Q.; Zhang, J.; Chen, Z.; Li, J. Application of Flow Velocity and Direction Measurement System in Slope Stability Analysis. Water 2021, 13, 700. https://doi.org/10.3390/w13050700

AMA Style

Ge Q, Zhang J, Chen Z, Li J. Application of Flow Velocity and Direction Measurement System in Slope Stability Analysis. Water. 2021; 13(5):700. https://doi.org/10.3390/w13050700

Chicago/Turabian Style

Ge, Qi, Jingjing Zhang, Zhongxuan Chen, and Jin Li. 2021. "Application of Flow Velocity and Direction Measurement System in Slope Stability Analysis" Water 13, no. 5: 700. https://doi.org/10.3390/w13050700

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