Analysis Of Test To The Structure Anti-floating In Different Soil

With the increasing complexity of urban architectural space ofthree-dimensional geotechnical engineering theory, there is a lot of spaceto be improved, underground construction of anti-floating design is theengineering practice which is not support by complete theory.For buildinganti-floating water level and the suffered buoyancy, the engineergenerally estimate them by virtue of the experience and past cases, orusing the Archimedes theorem. In engineering and academia, researchesare in a pending state, do not form a unified and reliable systemengineering theory, as a result that considering the buoyancy of theunderground space, the most adopt the methods of the experience anddiscount coefficient.In this paper, the problem of building anti-floating, will be study bylaboratory experiment, and further discussion will be done by analysisinggroundwater buoyancy of the construction in each soil layer on the basisof predecessors. This thesis mainly includes the following sections:1. Summing up previous theoretical and experimental study on theconstruction of anti-floating, raise the starting point of this study and thetechnical route.2. This paper will explore groundwater buoyancy mechanism anddistribution law changes of gravelly sand, fine soil, silt, silty clay, clayand silty clay layer along with changes of the nature of the soil, porosity and permeability;3. Deducing the formula of wall side friction in various soil,search the influence of buoyancy. Using assumptions and trend linemethod, deduce the resultant of forces formula of buoyancy and lateralfriction, and verify its reliability.4. Combined with the engineering application,optimize the design byusing the study achievement.