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为了对现有未打穿竖向排水井地基固结理论进行改进,使其解更趋于合理,对现有未打穿竖向排水井地基固结理论渗透面连续条件的不合理性进行了研究,提出渗透面上的连续条件改进方法,并给出了改进后的固结解。通过算例分析了现有解与所提出的改进解的差异,并采用基于Biot固结理论的轴对称有限元数值分析方法,对一算例进行了分析。结果表明:改进解可以反映渗透面上的径向水力梯度,孔压沿深度方向分布也更为合理,且改进解也更加精确。
In order to improve the existing theory of foundation consolidation without vertical drilling, and to make the solution more reasonable, the irrationality of the existing continuous seepage conditions of foundation consolidation theory without vertical drilling is studied The method of improving the continuous condition on the seepage surface is put forward and the improved solution is given. An example is given to analyze the difference between the existing solution and the proposed improved solution. An example is also analyzed based on Axonymmetric finite element numerical analysis method based on Biot’s consolidation theory. The results show that the improved solution can reflect the radial hydraulic gradient on the infiltration surface, the distribution of pore pressure along the depth direction is more reasonable, and the improved solution is more accurate.