瑞利面波检测地基强夯加固效果的应用

Application of Rayleigh surface wave to detect effects of foundation reinforcement with dynamic compaction

地基加固处理效果检测是地基加固工作的重要环节。传统的检测方法如动力触探试验,虽然检测结果较准确,但是成本较高、工序繁琐,而瑞利面波检测技术具有迅速、经济、有效和简便的特点。本文以某场地软弱地基加固为例,研究了强夯后地基动力触探击数和瑞利波波速之间的关系。结果表明:瑞利波检测夯后地基加固效果达到设计要求,且与动探试验结果吻合,满足工程要求,能切合实际地运用于现场检测中。

The test of foundation reinforcement effect plays an important role in foundation reinforcement. The traditional detection methods such as the dynamic penetration test whose results are accurate need the high cost and tedious steps. Rayleigh surface wave detection technique has the characteristics of rapid, economic, effective and simple. Based on the field soft ground reinforcement, the relationship between the foundation dynamic number and the velocity of Rayleigh wave after dynamic compaction is discussed. The results show that the effects of Rayleigh wave detection for foundation reinforcement meet the design requirements, and accord with the results from dynamic penetration test, which meet the engineering requirements and can be fast and practically used in field tests.