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Soft soil with soft loose porosity higher than the large , natural moisture content , high compressibility , low strength , permeability and structural sensitivity characteristics, therefore, the soft ground treatment is bound to face the problem of road workers . Soft clay foundation for our sea beach area , starting from the soft soil foundation reinforcement methods , highlight several common approach , and on this basis to propose a new method - bucket foundation reinforced soft ground . Through numerical simulation , the theoretical analysis and calculation of in-depth study of the barrel and the interaction of soil , proposed a single- barrel composite foundation bearing capacity formula . First , from the concept of soft soil , characteristics , distribution, engineering problems starting , focuses on the road soft ground treatment of several commonly used methods , summed up its engineering properties and strengthening methods , discussed the problems faced by the soft ground treatment ; then thought the use of finite element numerical simulation using finite element software PLAXIS model bucket foundation . Characteristics and mechanism analysis of bucket foundation studies under static loads , the foundation bearing capacity increases with increasing barrel length and barrel diameter . Single barrel vertical bearing capacity of the standard value by calculating P u, k expressions and composite ultimate bearing capacity P cf ; Finally, in the same geological and load conditions , the comparison bucket foundation and several other methods of economy . Draw bucket foundation reinforcement cost than DJM 11.55% , lower than the cost of CFG pile and lime pile . Bucket foundation can be prefabricated into barrel quality , large carrying capacity , short construction period , overall significant economic benefits . In this paper, the feasibility of bucket foundation reinforcement Highway Soft Ground in-depth research and a lot of calculation , convinced that this method has some practical value .
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