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本文同时考虑土体侧向变形、竖向变形和土粒流失,导出了抗液化振冲挤密桩间距的计算公式。该公式中的孔隙比通过相对密度与标贯击数和静力触探锥尖阻力相联系,应用较为方便。把本文计算公式应用于实例,并与现有计算方法进行对比,发现不考虑地面下沉和土粒流失,所得结果有时偏大,有时偏小;而仅考虑地面下沉时,所得结果偏大。本文方法同时考虑地面下沉和土粒流失,与实际情况相符,所得结果比较合理。
In this paper, the lateral deformation, vertical deformation and soil loss of soil are also taken into account, and the formula for calculating the spacing between anti-liquefaction vibratory compaction piles is derived. The void ratio in this formula is related to the relative density, which is related to the number of standard shots and the static probe tip resistance. It is more convenient to apply. Applying the calculation formula of this paper to an example and comparing it with the existing calculation method, it is found that the ground settlement and soil loss are not taken into consideration. The obtained result is sometimes too large and sometimes small; when considering only ground subsidence, the obtained result is large. . This paper considers ground subsidence and soil loss at the same time. It is consistent with the actual situation and the results obtained are reasonable.