动力夯实法处理海滩风积沙效果检测与分析

Detection and Analysis of Treatment Effect by Dynamic Compaction Method for Beach Aeolian Sand

该文以沿海某钢厂采用动力夯实法处理风积沙的工程试验区为例,通过标准贯入试验、静力触探试验、平板载荷试验、平板膨胀试验等多种测试手段,对夯前和夯后的三个试验区进行了测试,确定了该厂区采用动力夯实法的夯间距和夯击能等施工参数,并对测试成果进行了对比分析。结果表明处理后的地基强度有了显著提高,能满足设计要求,该法对处理海滩风积沙是切实可行的。

A steel plant in the coastal area use the dynamic compaction method to deal with the aeolian sand,and this paper takes the engineering test area for example. Through the many testing measures such as the standard penetration test,static penetration test,flat plate load test and flat expansion test,the three test areas before and after compaction are tested. The construction parameters such as the ramming distance and the ramming energy are determined by the dynamic compaction method in this plant. The testing results are compared and analysed. The results show the foundation strength after handling improves significantly. It can meet the design requirement. This method is feasible for the treatment of marine aeolian sand.