本次研究利用瑞雷波测试技术对北京地区岩土工程目标体进行了研究.针对评估地基承载力方面的问题提出利用瑞雷波测试成果评价地基承载力及均匀性可以采用三种方法:直接应用瑞雷波波速评估地基的强度、在时域曲线判读群速度评价地基土的均匀性、应用瑞雷波测试综合信息评价地基强度.通过不同地区的工程实例分析,总结出一些特征及关系,对地基强度进行量化评估提供了一个合理、可靠、简便的途径.
The paper studies the Beijing geotechnical engineering targets by applying Rayleigh wave testing techniques. Aiming at evaluation on foundation bearing capacity, we present three methods: evaluating the foundation intensity by directly applying Rayleigh wave velocity, evaluating homogeneity of foundation soil by group velocity from time-frequency curve, evaluating foundation intensity by applying Rayleigh wave testing comprehensive information. Through analyzing engineering examples on different districts, the paper summarizes some characteristics and relationships and provides a logical, reliable and simple way for evaluating foundation intensity.