摘要
低应变反射波法,是一种运用应力瞬间或稳定激振的方式在桩的顶部激振,实际测试桩基顶部的速度时程曲线或者速度的导纳曲线,经过波动理论的分析或者频域的分析,对于桩基全身的完整性来进行判定的检测方法。针对在桩身出现的破裂、涨缩、空洞等问题,进行此实验监测波速值和波动图来判断其完整性,实验利用低应变反射波法检测42根桩基,观测此方法的合理性与准确性,来保证工程的安全性。
The low strain reflected wave method is a detection method that uses the method of instantaneous or stable stress excitation to excite the vibration on the top of the pile,actually tests the velocity time history curve or velocity admittance curve on the top of the pile foundation,and judges the integrity of the whole pile foundation through the analysis of wave theory or frequency domain.Aiming at the problems of fracture,shrinkage and cavity in the pile body,this experiment is carried out to monitor the wave velocity value and wave diagram to judge its integrity,The low strain reflected wave method is used to detect 42 pile foundations,and the rationality and accuracy of this method are observed to ensure the safety of the project.
作者
郝松硕
李大华
韩孟君
宋国文
李俊豪
彭程
HAO Song-shuo;LI Da-hua;HAN meng-jun;SONG Guo-wen;LI Jun-hao;PENG Cheng(School of Civil Engineering,Anhui Jianzhu University,Hefei 230601,China;Anhui Construction Engineering Group Co.,LTD.,Hefei 230031,China;Department of Electrical and Electronic Engineering,Guilin University of Technology,Guangxi Guilin 541004,China;School of Civil Engineering,Hefei City University,Anhui Chaohu 238000,China)
出处
《齐齐哈尔大学学报（自然科学版）》
2022年第4期43-47,共5页
Journal of Qiqihar University(Natural Science Edition)
基金
安徽建工集团股份有限公司校企合作基金资助项目“阜南中医院建设项目施工质量控制技术”(HYB20210150)。
