节点文献
基桩完整性检测的多点检测系统
Multi-signal Detecting System of Pile Integrity Testing
【摘要】 低应变反射波法在基桩完整性检测中占主导地位 ,但目前的检测方法还存在一些问题 ,如桩头附近存在测试盲区 ;桩深部的缺陷较难识别 ;还存在桩的二维或三维效应等。这些问题仅靠目前的单点检测系统来解决是很困难的。提出了一种多点检测系统 ,即多点拾振、多点激励 ,应用以多次覆盖原理为中心的数据处理方法 ,有效地抑制了干扰 ,提高了信噪比和测试精度。该系统还可推广到结构的完整性检测。
【Abstract】 The method of law reflected strain wave is the main technology, but with some deficiency in piles integrity testing. There exist a testing blinding section at the top of tested pile, difficulty to recognize the defect at deep-seated part of pile as well as the planar and thre-dimensional domino effect. Those problems cannot be solved using the single-transducer pile integrity testing system. A new multi-signal piles integrity testing system is proposed, able to impulse and collect signals at multi-point on pile’s top. Applying the multiple superposition data processing method, the detecting system can effectively restrain the interference and elevate the precision and SNR of pile integrity testing.
【Key words】 pile; integrity testing; multi-signal detecting; multiple superposition data processing method;
- 【文献出处】 解放军理工大学学报(自然科学版) ,Journal of PLA University of Science and Technology(Natural Science) , 编辑部邮箱 ,2004年01期
- 【分类号】TU473.16
- 【被引频次】6
- 【下载频次】79