| With the development of urban construction, underground space as a new type of land and resources is more and more attention around the world. However, underground structure will withstand a certain degree of buoyancy; the past, because engineers lack of knowledge of the buoyancy of the hazards, the accident is occurred by buoyancy float. Currently, the buoyancy of the water problem caused enough attention, according to some theoretical and experimental data of water buoyancy had made some experience and simplification of the design; but domestic geotechnical engineering methods focused determine the static water level, the need for reduction of buoyancy; the ends can not meet solution to buoyancy of underground structure of slope.In order to make a reasonable solution to buoyancy of underground structure of slope, the main contents are as follows:(1) Derived formula to solve the different types buoyancy of underground structure of slope; underground structure of slope design of rational, scientific, and feasible method.(2) Two-dimensional indoor sand box penetration test simulation different types of groundwater seepage field; the formula slope geotechnical engineering calculations and profile seepage finite element program were compared to prove the rationality of the formula is derived and practical sex.(3) Combined with finite element analysis of plane seepage slope geotechnical engineering in the formula in the application of three-dimensional flow field to study the conditions under which the slope can be used three-dimensional seepage slope Geotechnical Engineering formula.(4) Combination underground structure of slope of Luo Gang and residential district of underground structure, the use of slope geotechnical engineering seepage finite element formula and plane were calculated to further illustrate the method in practical engineering application of the reasonableness of slope can be provided a reference Geotechnical Engineering...
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