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{ For each analysis, the tensile strains were calculated from the deformed spacing betwe <br /> ! ' adjacent grid points in the surface against:the initial grid spacing. A characteristic curve of t <br /> maximum tensile strains versus ratio of void width (4) to controlled fill thickness r— <br /> developed from the analyses' results. This curve is presented in Figure 4. <br /> 2.0 <br /> 1.8 d <br /> `0 1.6 <br /> 1.4 <br /> m m <br /> N o 1.2 0 <br /> C ,0 <br /> ►�' 1.0 <br /> E N <br /> ® 0.8 <br /> E t ' <br /> X <br /> 0.6 0 <br /> C <br /> M ° 0.4 /O <br /> 0.2 ,0 - <br /> o.oS �O <br /> 0.0 —-- -- <br /> 0.0 0.2 0.4 0.6 0.8 1.0 1.2 <br /> Rotio of Void Width to Controlled Al Thickness (LD,/T) <br /> Figure 4 Maximum tensile strain versus ratio of void width/controlled fill thickne <br /> on 0.9m x 0.9m x 1.8m (3'x3'x6') void <br /> 3.5 <br /> LEGEND <br /> 3.0 L LEAD (BEAM FLEWRE TESTS D <br /> 0 TSCHIEBOTARIOFF ( DIRECT TENSION TESTS 1 <br /> 0 WES DATA l DIRECT TENSION TESTS 7 <br /> i <br /> 2.0 <br /> r- <br /> N <br /> W <br /> _J <br /> N <br /> 2 <br /> W <br /> 1.0 <br /> 0 <br /> 0 <br /> O0 <br /> 1 10 100 1000 <br /> PLASTICfTY I(I)M % <br /> Figure 5 Tensile strain versus plasticity index <br /> (After Gilbert and Murphy, 1987) <br /> 1506-Vancouver,Canada-Geosyntheties'93 <br />