核电厂高边坡抗震验算和加固设计

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Abstract The suitability of current nuclear safety guides to high slope antiseismic stability assessment of nuclear power plant is studied；and the analysis method and domestic research status of high slope stability are reviewed. Taking the typical high slope at a certain nuclear power station for example，qualitative analysis methods are combined with quantitative methods to comprehensively analyze the stability and failure mode of nuclear power plant high slopes. Firstly，red flat projection method and Chinese slope mass rating(CSMR) are applied to half quantitatively forecaste the landslide and define the design ratio of slope. Then，on the basis of typical two-dimensional calculation profile，rigid limit equilibrium method，strength reduction method and limit equilibrium finite element method based on stress field are used to calculate the slope antiseismic stability. Finally，three-dimensional(3D) fracture network model is established. 3D discrete element method is used to simulate the highly nonlinear and large deformation of jointed rock masses and qualitatively analyze failure mode and failure zone of slope. The collapse material migration process is reproduced；and its maximal migration distance is calculated under the action of earthquake. In addition，slope treatment ideas and common reinforcement method are summarized. The present research enriches the theory of high slope stability with nuclear safety grade and can provide technical support for stability analysis，assessment and engineering design of nuclear power plant slopes.

Key words： slope engineering nuclear power plant slopes stability analysis discrete element method 3D model jointed rock mass

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	ZHENG Wentang

Cite this article:

ZHENG Wentang. ANTISEISMIC STABILITY ANALYSIS AND REINFORCING DESIGN OF NUCLEAR POWER PLANT HIGH SLOPES[J]. , 2013, 32(s2): 3961-3971.

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/Is2/3961

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