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概述了ＣＡＳＥ＆ＣＡＰＷＡＰ理论，利用香港沿海多个软土场地中大量的预制桩ＰＤＡ检测资料，分别总结了预应力预制管桩和“Ｈ”型钢桩在打桩检测过程中，桩锤桩帽桩身系统的能量（最大冲击力）、桩身位移与桩的承载力的分布特点及量的联系
The CASE&CAPWAP theory is summarized, and a large number of prefabricated PDA testing data from many soft soil sites along the coast of Hong Kong are used to sum up the prestressed prefabricated pipe piles and “H” steel piles during the piling detection process. The pile hammers, pile caps and piles The relationship between the energy distribution (maximum impact force) of the system, the displacement of the pile and the bearing capacity of the pile