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Question

2.8 For a sandy soil, void ratio, e = 0.63; hydraulic conductivity, k = 0.22 cm/sec; and specific gravity of soil solids, Gs = 2.68. Estimate the hydraulic conductivity of the sand (cm/sec) when the dry unit weight of compaction is 117 lb/ft^3. Use Eq. (2.37)

Solution

xx have xyxxxxxxx xxxxxxxxxxxy(x)=x*xxxx*(xx/x+x)* ?x/

               Here x xx xxxxxxxx and xxxxx terms xxxxxx xxxxxxxx                xx/xx =(e13/1+e1)/(e23/1+e2)    .(x)                               K1=0.22cm/sec

                              xx=x.xx xxxxx xxy density=117lb/ft3

                              =x.xxxx/xxx       (x xx/xxx=x.xxxxxx g/cm3)

xxy density(?d)=G*?w/(1+e)

xxxx      xxxxxxxx gravity xx soil xxxxxx(x)=x.xx                unit xxxxxx of xxxxx(?x)=xx/xxx                1.874=2.68*1/(1+e)

                              x=x.xx xxxxxxxxx xx=x.xx

Fron xxxxxxxx(x)

               x.xx/xx=(x.xxx/x+x.xx)/(x.xxx/x+x.xx)                               xx=x.xxxxxx/xxx  

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