【摘要】 目的研究强夯处理厚层回填粗砂地基E_V2检测试验,解决缩短工期、节约成本工程问题.方法采用数理统计的方法,通过采集并整理沈阳某厚层回填粗砂强夯地基处理工程中获得的相关工程数据,分析了不同夯击能情况下E_V2与E₀和N_63.5之间的相关关系.结果得到了不同夯击能情况下E_V2-E₀和E_V2-N_63.5之间的相关性方程以及相关系数的评价结果.结论强夯处理后的回填粗砂地基,在不同夯击能情况下,E_V2和E₀、E_V2和N_63.5之间都有较好的线性相关性,可以利用快捷的重型动力触探试验代替复杂的E_V2试验准确评价地基压实施工质量,对于不同地区同类工程具有一定的参考价值.更多还原

【Abstract】 This paper was proposed to study the application of E_V2 detection technology in the dynamic compaction foundation test to shorten the construction period and save the cost. The correlation between E_V2 and E₀ and N_63.5 under different dynamic compaction energy was analyzed using mathematical statistics method based on the data collected from the thick layer of coarse sand backfill tamping foundation treatment project in Shenyang. The evaluation results of correlation equations and coefficients between E_V2- E₀ and E_V2- N_63.5 under different tamping energy showed good linear correlation after dynamic compaction. Therefore,the E_V2 quick test of heavy dynamic penetration can be used instead of the accurate evaluation of construction quality of foundation compaction. The conclusion is of certain reference value for similar projects in different regions.更多还原