在量纲分析的基础上,利用尺寸为100cm×100cm×80cm的模型试验坑,采用落雨法充填粗砂土,对之施加四种不同能量的冲击能,测量产生的夯坑深度,建立了无量纲夯坑深度与土质参数和施工工艺参数无量纲量间的相关方程.用工程实例对建立的方程进行了验证。结果表明,方程可用于推算现场强夯时的夯坑深度,并由此可进而据此推算场地平均夯沉量。
On the basis of dimensional analysis, utilizing model test pits of 100cm × 100cm ×80cm in size, adopting rain method to fill with coarse sand, exerting six kinds of different impact energy on the coarse sand, measuring crater depth caused, then the dimensionless relevant equation is established among crater depth and soil conditions parameter and construction process parameter, the equations are verified by project examples. The results show that the equations can be used to calculate crater depth of work field dynamic compaction, and then the average enforced settlement related to the soil parameters can be calculated.