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本文提出了在自由应变条件下,考虑砂井阻力对砂井地基固结影响的拆减井径法,这是一种简便的方法。此法可把对水流有阻力的砂井考虑为不计砂井阻力的等效理想砂井。这种方法能考虑径向水流及竖向水流固结系数的不同。利用拆减井径法所得结果与日本吉国洋等人1974年提出的解答作了对比,二者接近,吉国氏的解答只能用于径向及竖向固结系数相等的情况。
This paper proposes a method of removing and reducing the caliper considering the effect of sand-resistance on the consolidation of sand-drain foundation under free-strain conditions. This is a simple method. This method can consider sand wells that are resistant to water flow as equivalent ideal sand wells that do not account for sand well resistance. This method can take into account the difference in the coefficient of consolidation of the radial flow and the vertical flow. The results obtained by the use of the decommissioning crater method are compared with the solution proposed by the Japanese Kyrgyz Republic and others in 1974. The two approaches, and Kyrgyzstan’s solution can only be used when radial and vertical consolidation coefficients are equal.