R

In (i) : Taking moments about D gives R

In (ii) : Taking moments about B eliminates PP1 and gives d

(c) Equivalent beam analysis

Fig. 7.13 Fixed earth support method for anchored sheet piled walls.

computed by the free earth support method for both the moments in the pile and the tension in the tie can be realistically reduced. The method involves the use of two coefficients, rd and rt, and worked examples illustrating the use of the method have been prepared by Barden (1974). More recently, numerical studies performed by Potts and Fourie (1984) have confirmed Rowe's findings for normally consolidated clays. However, their studies showed that Rowe's results do not stand for overconsolidated clays and they have produced separate design charts for this case.

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