瑞利波检测技术在地基强夯加固中的应用

利用瑞利波检测技术,对厦门某海域吹填砂强夯加固地基进行了强夯前后的现场测试,并与动力触探试验成果进行了对比。结果表明:瑞利测试得到的是场地分层剪切波速,土层介质力学参数多与剪切波速有关;瑞利波波速与地基承载力有一定的相关性,可大致估算强夯地基的承载力;地基强夯前后的试验结果与动力触探成果相符,说明瑞利波可以有效地应用于地基强夯效果的检测中;对瑞利波检测技术在地基强夯加固效果评价中的应用提出了合理化建议。

APPLICATION OF RAYLEIGH WAVE DETECTION TECHNOLOGY IN THE FOUNDATION OF DYNAMIC COMPACTION

Field tests before and after dynamic compaction of the dredger filled sand dynamic compaction foundation at Xiamen bay were conducted by Rayleigh wave detection technology, and the test results were compared with the dynamic cone penetration test results. Results show that the field layered shear wave veloci- ty is obtained in Rayleigh Wave test, soil mechanics parameters are related to shear wave velocity; Rayleigh wave speed has a certain relevance to foundation bearing capacity which can roughly estimates bearing capacity of the dynamic compaction foundation; test results by Rayleigh wave detection method before and after dynam- ic compaction are in line with that by the dynamic penetration method, which shows that Rayleigh wave can be effectively applied in the detection of foundation dynamic compaction effect. Some reasonable advices on effec- tiveness evaluation of the dynamic compaction foundation by Rayleigh wave detection technology were proposed in this paper.