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Indexed by:会议论文

Date of Publication:2006-01-01

Included Journals:CPCI-S

Page Number:1033-1038

Key Words:geofabric; reinforced underlying layer; mechanism and effect of sliding resistance; full scale test; circular failure analysis method

Abstract:The safety coefficients are improved little with circular failure analysis method stated in the criterion for preventing deep sliding of reinforced underlying layer of embankment with geofabric, which doesn't agree with the actual effect of reinforced geofabric. By comprising the full scale test of embankment without reinforced underlying layer with the other two sections being provided with one or two reinforced underlying layers, the sliding resistance and reinforcement effect are revealed. Making use of the data of the full scale test, a new circular sliding surface passing the point of maximal vertical settlement, which is the center point of interface between embankment and geofabric, is put forward. The computed safety coefficients of the embankment without or with one or two reinforced underlying layers are improved obviously with the new sliding surface and closer to actual situation than the old one.