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山区碎石土回填地基强夯加固效果的准确评价一直是普遍关注的难题。在分析碎石土回填地基强夯加固机理的基础上,针对山区碎石土回填地基的特点,探讨采用公式估算法及试验检测法评价其强夯加固效果的有效性、合理性,并结合实际工程进行了对应分析。分析结果表明:采用公式估算法评价山区碎石土回填地基的强夯加固效果具有局限性,而单一试验检测评价方法可靠性低、成本高,只有综合采用瑞雷波、荷载板和动力触探法才是山区碎石土回填地基经济、适用、可靠的检测评价法,而相应地基承载力及变形模量综合评价是其有效加固深度合理、适用的判定指标。
Accurate evaluation of the effect of dynamic compaction and reinforcement of mountain gravelly soil backfill has been a common concern. On the basis of analyzing the dynamic compaction mechanism of rubble soil backfill foundation, according to the characteristics of mountain rubble soil backfill foundation, this paper discusses the validity and rationality of using formula estimation method and test method to evaluate the effect of dynamic compaction, Engineering conducted a corresponding analysis. The results of the analysis show that there is a limit to using formula estimation method to assess the effect of dynamic compaction of backfill foundation in mountainous area. However, the single test method has low reliability and high cost. Only using Rayleigh wave, load plate and dynamic probe The law is the economical, suitable and reliable test and evaluation method for the backfill foundation of mountainous gravelly soil. The comprehensive evaluation of the bearing capacity and deformation modulus of the corresponding foundation is a reasonable and applicable criterion for the effective reinforcement depth.