强夯填土地基检测分析方法探讨

Testing Methods for the Soils Improved By the Dynamic Compaction

根据强夯填土地基检测的实际工程实例,采用土工试验、平板载荷试验和重型动力触探,通过建立承载力特征值与动力触探试验、压缩模量与动力触探试验之间的关系,将土层从上部(3倍压板尺寸范围内)与下部进行分段评价,同时分段评价可划分不符合要求的平面位置及深度范围,为后期的处理补救提供了有力的依据,可供同类检测项目参考。

This paper presents case histories of foundation soil testing on the dynamic compaction treated soils.Several testing methods were used to evaluate the properties of the treated soil：soil laboratory testing,plate loading testing;and heavy dynamic penetrometer testing.The tested soils can be divided into two layers：upper（within 3times of the plate width）and lower layers throughout the relationship between the bearing capacity and the dynamic penetrometer blow counts as well as the relationship between the compression modulus and the dynamic penetrometer blow counts.The two layers can be separately evaluated so that the weak layer can be identified and mitigated.