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<br />La <br />.... .- U. 2_ __ .... .... 7_ .. <br />,---- <br /> <br />La <br /> <br /> <br />- <br /> <br />--- <br />......v.,.. ....,.u <br /> <br />La <br /> <br />L. <br />fu <br />LA <br /> <br />- <br /> <br />-...... <br />..,:s-- _ !!-_ _ <br />.- ~------- <br />--- <br /> <br />1:1 <br /> <br /> <br />.. <br />. <br />(. <br /> <br />. <br />. <br />. <br />. <br />I <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br /> <br />- <br /> <br />FIGURE 4.12 COMPARISON OF SCOUR FORMUlAS FOR VARIABLE <br />DEPTH RATIOS (y/a) (JONES 1983) <br /> <br />u <br /> <br />~'.. ................ ..-..... ................ <br /> <br />~ <br /> <br />u <br /> <br />- <br /> <br />1.1 <br /> <br /> <br />y. <br /> <br />~ <br />___~_;i' <br />--- <br />~) <br />r ./' __-..... <br />""""':"-::"" -- 6. <br /> <br />/~<a...'~~:0.12 <br />~~~~~ <br />e'," - .. <br />'1.1 ..,.,--.. -. -_ ~~ CIiliaIII <br />...:'....--.....-....... ...- <br />....... ......--. <br /> <br />- <br />a <br /> <br />'A <br /> <br />... <br /> <br />o <br /> <br />o <br /> <br />.U <br /> <br />u <br /> <br />1.1 <br /> <br />z.o <br /> <br />u <br /> <br />- <br />.. WVU 0.."" <br />~...,. <br />....- <br /> <br />00.. <br />...-..... <br />...-- <br />........ <br /> <br />-- <br />-- <br />-- <br />- <br /> <br />u <br /> <br />... <br /> <br />FIGURE 4.13 COMPARISON OF SCOUR FORMULAS WITH FIELD <br />SCOUR MEASUREMENTS (JONES, 1983) <br /> <br />40 <br />