有效质量系数随土壤粘结力的增大而提高，随高径比的增大而增大。
Increasing the stickiness of the soil or increasing the height-to-diameter ratio will both make the effective mass coefficient bigger .
非轻质多弹簧串联系统的有效质量和劲度系数计算
Calculation of Elastic Constant and Effective Mass of Massive Springs in Series
有效质量系数