Study On The Technology And Design Of Buoyancy In Underground Structure Of Slope

In recent years, high-rise buildings and construction of deep foundation pit is often appear, the deeper the foundation embedment yue to, has brought the huge challenge for underground structure anti-uplift, because the anti-floating design problems caused by the basement structure buoyancy destruction accidents often occur. Water level underground structure anti-uplift design basis is to determine the anti-uplift, slope topography of anti-uplift water level set can’t simply use the average water level or the highest water level, it will damage in structures appear to rise or increase the cost.Slope of the terrain, the author of this paper, calculation on its head and partition anti-floating calculation method were studied. Choose two engineering examples respectively, the anti-floating design and checking calculation of again. Calculation results of different methods were compared.Slope topography anti-uplift head calculation partitions are used to calculate the relationship between partition boundaries and slope; The results calculated by different method compared with the traditional design are to ensure safety on the basis of the conclusion of reducing the cost.Also use PLAXIS 2D finite element analysis, this paper calculates the results and comparison, this paper calculates the anti-floating design results proved that the partition method of anti-floating design of security.