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RE: Overturning check

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Several people mentioned that an overturning ratio of 1.0 would be ok.  The code
has no specifiec number, however, from a practical standpoint, 1.0 can never be
used because the soil pressure would equal infinity at a ratio of 1.0.  Normal
checks for the maximum soil pressure (including the 1/3 increase commenly taken
for seismic) tend to limit the overturning ratio to the range of around 1.5.

regards,
Martin