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琼北地区广泛分布着玄武岩残积土,结合海口美兰国际机场二期扩建飞行区地基处理试验段工程实例,总结琼北玄武岩残积土的岩土工程特性,选取原位测试指标作为强夯法有效加固深度的判别标准.通过地基处理前后的静力触探试验、标准贯入试验、重型动力触探试验对比分析,探讨强夯法加固玄武岩残积土的有效加固深度,该项工作可供琼北地区同类地基处理工程借鉴.
Basalt residual soil is widely distributed in the north of Qiongbei. Combined with the engineering practice of the foundation treatment test section in the second flight area of Meilan International Airport in Haikou, the geotechnical engineering properties of the residual soil in the Qiongbei basalts are summarized, and the in situ test index is selected as the dynamic compaction method According to the static penetration test, standard penetration test and heavy-duty dynamic penetration test before and after ground treatment, comparative analysis is conducted to explore the effective reinforcement depth of dynamic compaction method to reinforce basalt residual soil. Area similar ground treatment engineering reference.