For foundation in the case of circular reinforced concrete pipelines,the minimum construction di-mensions are provided in domestic standard,without a clear definition of the covered depth.In this paper,ABAQUS was used for modeling and finite element analysis.After verifying the correctness of the model with tests data,the acting mechanism in foundation,the effect of the reduction of pipe thickness on foundation were analyzed.Finally,the maximum available covered depth for foundation with different supporting angles were proposed.The reinforcement methods were pointed out as well,including enlarging the cross-sectional dimen-sions,increasing local reinforcements,or improving the concrete strength in foundation,which can be applica-ble in the case of insufficient bearing capacity of pipeline foundation.The results could provide a basis for foun-dation design of circular reinforced concrete pipelines.
关键词
混凝土管道基础/有限元分析/深覆土/管道基础加固
Key words
Foundation of concrete pipeline/Finite element analysis/Deep covering/Pipeline foundation reinforcement
维普
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