摘要
针对低应变法的有效检测深度缺乏定量分析手段,在桩-土温克尔地基模型的基础上,采用特征线求解法推导桩侧土阻力对纵波在桩身传播衰减关系式,提出了低应变法的有效检测深度估算方法,并通过工程实例验证该方法的可行性。
The quatitative analysis to calculate the effective monitoring depth of pile using low-strain method is not yet developed.Based on pile-soil Winkler model,the damping relationship bewteen longitudinal wave and surrounding soil resistance are derived using charateristic line solution.A calculation method to obtain effective monitoring depth of low-strain method is proposed and case studies are performed to verify the method.
引文
[1]陈凡,徐天平,陈久照.基桩质量检测技术[M].北京:中国建筑工业出版社,2003.
[2]刘东甲.纵向振动桩侧壁切应力频率域解及其应用.岩土工程学报,2001.23(5):544~546.
[3]王建华,智胜英.饱和土剪切波速在基桩缺陷定量分析中的应用研究.岩土工程学报,2009.31(6):864~870.
[4]王雪峰,吴世明.桩基动测技术[M].北京:科学出版社,2001:8-133.