[国外文献]DESIGN OF PILES AND PILE GROUPS [复制链接]

Current practice for pile design varies and building codes differ between countries as well as within
countries, indeed, even between individual engineering disciplines. The differences do not become
apparent until the designer includes the effect of dragload and settlements: In reference to the structural
strength of the pile, many do realize that the maximum load in a pile is the sum of dead load and
dragload; live load does not add to the maximum load. Others, however, will consider the dragload as
just another load and lump it in with the dead and live loads. In reference to the bearing capacity, some
will even determine the factor of safety as the pile bearing capacity divided by the sum of the dead and
live loads and the dragload! Or worse, as really has occurred by some twisted logic, first subtract the
dragload from the bearing capacity and then divide the balance by the sum of the dead and live loads and
the dragload. The correct approach is that the dragload is not to be included in the calculation factor of
safety on bearing capacity. The factor of safety is simply the bearing capacity divided by the dead and
live loads. Actually, the larger the dragload the stiffer the pile and the safer the design (provided the
structural strength is sufficient)

引用楼主wangjianping于2009-05-13 17:10发表的 DESIGN OF PILES AND PILE GROUPS :
Current practice for pile design varies and building codes differ between countries as well as within
countries, indeed, even between individual engineering disciplines. The differences do not become
apparent until the designer includes the effect of dragload and settlements: In reference to the structural
strength of the pile, many do realize that the maximum load in a pile is the sum of dead load and
dragload; live load does not add to the maximum load. Others, however, will consider the dragload as
.......

Hi Bro, where did you get this from, could you make the reference for it. it may be good for the readers who try to track the original theory and more info. cheers

谢谢~！

谢谢楼主的无私奉献