自平衡法静压荷载试验应用实践

通过分析传统桩基础荷载试验的缺点 ,引出一种可测得桩端阻力、桩侧土摩阻力及单桩极限承载力的静荷载试验新方法———自平衡法。介绍了自平衡法的测试原理、加载设备、测试数据分析等关键点。结合工程实例叙述了利用自平衡法结合其它测试元件确定桩侧土体摩阻力、桩端阻力及单桩极限承载力的全过程。

Through analyses on shortcomings of the traditional static loading test of pile foundation, a new static loading test method---self-balanced loading test is introduced in this paper, which can be used for testing of pile end resistance force, pile side earth friction, and the limit bearing capacity of the single pile. The testing principles, loading equipment and testing data analyses are also introduced. The whole process of determining the pile side earth friction, pile end resistance force and limit bearing capacity of the single pile by using the self-balanced method and the other testing elements is described based on the engineering examples.