Volume 21 Issue 4
Aug.  2013
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WANG Dingwei, WU Faquan, MA Aiyang. 2013: THREE DIMENSIONAL NUMERICAL SIMULATION FOR RIGHT BANK SLOPE OF LAZHAI HYDROPOWER STATION. JOURNAL OF ENGINEERING GEOLOGY, 21(4): 641-648.
Citation: WANG Dingwei, WU Faquan, MA Aiyang. 2013: THREE DIMENSIONAL NUMERICAL SIMULATION FOR RIGHT BANK SLOPE OF LAZHAI HYDROPOWER STATION. JOURNAL OF ENGINEERING GEOLOGY, 21(4): 641-648.

THREE DIMENSIONAL NUMERICAL SIMULATION FOR RIGHT BANK SLOPE OF LAZHAI HYDROPOWER STATION

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  • Received Date: 2013-01-20
  • Rev Recd Date: 2013-05-10
  • Publish Date: 2013-08-25
  • Slope failure is one of the geological disasters frequently occurring in water resources and hydropower engineering. The evaluation on slope stability with three dimensional numerical simulation is of great significance and value for the disaster prevention and mitigation and landslide forecast. This paper mainly studies the slope stability at the right bank of Lazhai hydropower station. The station is located in Yunnan Province, China. The paper presents a systematic investigation of the site engineering geological conditions the type of rock mass structure, and the mechanism of deformation. It examines the occurrence relations between structural plane and slope and the potential induction factor of the failure of the slope in detail. Meanwhile, the stress filed, the displacement field and the distribution of the plastic zones of the original slope, the non-supporting and supporting slopes after excavation are respectively obtained with true-three-dimensional numerical simulation(FLAC3D).The mechanism of the deformation is analyzed, combining the analysis of the engineering geologic condition. The results shown the slope is in the initial stage of tension and its deformation is affected by the excavation obviously. According to the research results of the slope deformation mechanism, some corresponding reinforcement measures are taken to control the deformation of the slope. These measures mainly include the prestressed anchor cable, grid beam and suspended net shotcrete.
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