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FLAC CALCULATION AND ANALYSIS ON EXCAVATION AND SUPPORT OF A FOUNDATION PIT

MA Huan-yuan

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Abstract

This paper introduced FLAC-2D,based on an example of pit construction,calculated and analysed the excavation and the state of reinforcement structure;meanwhile,simulated the excavation with support in contrast to that without support,and obtained: stress state,displacement contours,displacement vectors,ultimate subsidence and the bearing of the structure.The calculation results proved that the design of structure is correct,respectively playing the role of validation and prognosis for the design and construction.

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What this paper is about

This paper introduced FLAC-2D,based on an example of pit construction,calculated and analysed the excavation and the state of reinforcement structure;meanwhile,simulated the excavation with support in contrast to that without support,and obtained: stress state,displacement contours,displacement vectors,ultimate subsidence and the bearing of the structure.The calculation results proved that the design of structure is correct,respectively playing the role of validation and prognosis for the design and construction.

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Available abstract

This paper introduced FLAC-2D,based on an example of pit construction,calculated and analysed the excavation and the state of reinforcement structure;meanwhile,simulated the excavation with support in contrast to that without support,and obtained: stress state,displacement contours,displacement vectors,ultimate subsidence and the bearing of the structure.The calculation results proved that the design of structure is correct,respectively playing the role of validation and prognosis for the design and construction.

Key concepts: Excavation, Foundation (evidence), Displacement (psychology), Subsidence, Structural engineering, Engineering, Geotechnical engineering, Bearing (navigation)

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