2009•Highway EngineeringRequires access

Discuss on the Evaluation Method of Clay's Bearing Capacity for Filling Road-foundation

Tang Xinfu

Abstract

It isn't definitude to evaluate bearing capacity of foundation soil of filling road-foundation in existing criterion,and filling road-foundation of highway belongs to soft foundation,it isn't suitable to evaluate bearing capacity of soft foundation with evaluation method of rigidity foundation.Two typical filling road-foundation of highway in Guizhou province are selected in this paper.The basic mechanics indexes of these foundation are obtain by indoor soil test and static force touch exploring examination,and referring to methods of rigidity foundation in the criterion of foundation design for highway bridge and culvert(DB22/45—2004)and the Guizhou criterion of building foundation design (JTG D63-2007),analyses bearing capacity of examination section,presents evaluation method of bearing capacity for fill road-foundation.

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Key concepts: Foundation (evidence), Bearing capacity, Culvert, Geotechnical engineering, Engineering, Civil engineering, Rigidity (electromagnetism), Bridge (graph theory)