Experimental Study on Soft Soil Foundation of Embankment in Chengmenshan Lake Area

Wenyan Ma

Abstract


Study on physical and engineering properties of Lake mud for soft soil, determinated by the triaxial compression test, direct shear and consolidation test. Test determinated the parameters of consolidation characteristics of consolidation and shear strength characteristics when consolidation was stable, under compression of 25kPa, 50kPa, 100kPa, 200kPa, 300kPa and 400kPa; and analyzed the statistical correlation between the parameters, and analyzed the varying pattern of consolidation Cv and shear strength variation c with the degree of consolidation U. Then improved the coefficient of Terzaghi-Rendulic consolidation theory for the assumption of constant, established (U-t) curve with coefficient of consolidation Cv change with U. Test results provided data for the feasibility study Lake dike of ChengMenshan copper mine project.


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References


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