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Brief Introduction of 3D FEM Stability Analysis of High Side Slope of the Intake of Longtan Hydropower Station

Qian Dai

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Abstract

s: As the max.height of the intake side slope of Longtan hydropower station is as high as 420 m,slope stability is one of the key technical problems in design.Various kinds of mumerical analysis mehtods are adopted to define a rational excavation outline and proper strengthening measures,as well as the construction process.Operations under different conditions are also simulated.The results of 3D FEM analysis show that the side will be stable during the dam construction and more stable after the dam is constructed;The strengthening roles of proposed strengthening measures and pre stressed anchor cable are obvious,proving the feasibility of the design data.

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What this paper is about

s: As the max.height of the intake side slope of Longtan hydropower station is as high as 420 m,slope stability is one of the key technical problems in design.Various kinds of mumerical analysis mehtods are adopted to define a rational excavation outline and proper strengthening measures,as well as the construction process.Operations under different conditions are also simulated.The results of 3D FEM analysis show that the side will be stable during the dam construction and more stable after the dam is constructed;The strengthening roles of proposed strengthening measures and pre stressed anchor cable are obvious,proving the feasibility of the design data.

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Available abstract

s: As the max.height of the intake side slope of Longtan hydropower station is as high as 420 m,slope stability is one of the key technical problems in design.Various kinds of mumerical analysis mehtods are adopted to define a rational excavation outline and proper strengthening measures,as well as the construction process.Operations under different conditions are also simulated.The results of 3D FEM analysis show that the side will be stable during the dam construction and more stable after the dam is constructed;The strengthening roles of proposed strengthening measures and pre stressed anchor cable are obvious,proving the feasibility of the design data.

Key concepts: Hydropower, Finite element method, Stability (learning theory), Engineering, Geotechnical engineering, Civil engineering, Excavation, Structural engineering

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