冲击碾压冲击能量及有效加固深度分析

Analysis on impact energy and effective reinforced depth of impact roller compaction

文章在已有的计算分析方法上，通过类比强夯法，从能量转化的角度，提出了计算冲击碾压能量和评价有效加固深度的理论公式。通过分析文献中的工程实例，采用文章提出的理论公式计算出砂性土、粘性土和湿陷性黄土的有效加固深度修正系数值，并结合工程实际，给出合理的建议值，其中砂性土为1．3～1．6、黏性土为0．8～1．0、湿陷性黄土为0．6～0．8。文章为冲击碾压法的有效加固深度研究提供了一个思路，希望其中的部分参数能够通过工程实践、试验或数值模拟的方法得到进一步的检验和验证。

Based on the existing calculation and analysis methods, through the analogy dynamic compaction method, the new formulas to evaluate the impact energy and effective reinforced depth are suggested from the energy conversion terms. Through analyzing engineering projects and using the suggested formulas, the correction coefficient values on effective reinforced depth of sand, clay soil and collapsed loess are calculated, and the reasonable values are suggested considering with field situation. The correction coefficient values of the sand are from 1.3 to 1.6, the values of the clay soil are from 0.8 to 1.0, and the values of the collapsed loess are from 0.6 to 0.8. The study provides the way for the analysis on the effective reinforced depth of. the impact roller compaction, and some parameters are wished to be verified in the advanced study and engineering practice.