确定基桩桩长的一种新方法

摘要

In the old city reconstruction,shield tunneling, even construction disputes and many other cases, determination of pile length is still a difficult problem. A new method is proposed based on the reflected wave method, which has no obvious difference except for quantity and installation position of transducer. In the end, validity of the method is verified by a engineering example, which worth further research and application for low cost, convenient and applicability.%在旧城改造、盾构施工甚至工程纠纷等诸多情况下要准确获知桩的长度信息，现有方法存在诸多不足，仍是一个难题。在传统的反射波法基础上，作者提出了一种准确度较高的新方法。除了传感器数量增加、传感器安装位置变动以外，其它同传统的反射波法基本没有区别。该方法费用低、简单、方便，对于桩顶暴露、桩顶嵌固两种情况均适用，值得深入研究与推广应用。