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PDA动测技术在国外已得到广泛的应用,不少国家已将桩的动测法列入地基基础设计与施工规范,如国际土力学和基础工程学会在1983年将CASWAP法作为学会建议的方法列入学会野外及室内试验委员会编制《规范):加拿大国家《总建筑规范》(1987年)规定,桩在承载力可用PDA桩基分析仪或用静载试桩确定;英国土木工作学会编制的《桩基规范)(1988年)中规定了桩基可采用PDA动测法;澳大利亚在《桩基设计施工规范(AS259-1976)》中规定可根据波动方程(PDA桩基分析仪)测定桩极限承载力;在荷兰,规定所有灌注桩均须经过动力检测;还有美国、西德等国家,也先后正式出版了桩的《动测规程》。限于篇幅,我们仅摘译了、翻印了国际土力学和基础工程学会、加拿大、英国的有关PDA动测《规范》。国际土力学与基础工程学会PDA动测规范:
PDA dynamic measurement technology has been widely used in foreign countries. Many countries have included the pile’s dynamic measurement method in the foundation design and construction specification. For example, the Society of Soil Mechanics and Basic Engineering in 1983 adopted the CASWAP method as the method recommended by the Institute. Listed in Institute for Field and Indoor Trials, “Regulations”: Canadian National “General Building Code” (1987) stipulates that piles can be determined by bearing capacity of PDA pile foundation analyzer or by static load test piles; prepared by the British Civil Engineering Society. “Pile foundation specification” (1988) stipulates that the pile foundation can adopt PDA dynamic measurement method; Australia specifies “Pile foundation design and construction specification (AS259-1976)” to determine the pile according to the wave equation (PDA pile foundation analyzer). Ultimate bearing capacity; In the Netherlands, all piles are required to pass the power test; also in the United States, West Germany and other countries, has also officially published a pile of “motion testing procedures.” Due to space limitations, we have only translated and reprinted the relevant norms for PDA motion measurement in the International Society for Soil Mechanics and Basic Engineering, Canada, and the United Kingdom. International Society of Soil Mechanics and Basic Engineering PDA Motion Test Specification: