水利水电科技进展
水利水電科技進展
수이수전과기진전
Advances in Science and Technology of Water Resources
2015年
5期
89-94
,共6页
桩基检测%旁孔透射波法%桩长%桩身缺陷
樁基檢測%徬孔透射波法%樁長%樁身缺陷
장기검측%방공투사파법%장장%장신결함
pile foundation detection%parallel seismic testing%pile length%defect of pile shaft
综述了旁孔透射波法检测技术的研究与应用进展，重点阐述了桩身缺陷的检测分析原理，认为对于顶部裸露的在建工程桩，由桩身透射到旁孔的弹性波路径短、干扰小且能反映缺陷以下桩身质量及桩底位置的信息，比常用的反射波法能够更为全面可靠地评价基桩质量状况，并以一个工程实例说明了技术的具体应用过程，结果表明，其实测信号明晰，能够反映缺陷以下桩身的质量信息。
綜述瞭徬孔透射波法檢測技術的研究與應用進展，重點闡述瞭樁身缺陷的檢測分析原理，認為對于頂部裸露的在建工程樁，由樁身透射到徬孔的彈性波路徑短、榦擾小且能反映缺陷以下樁身質量及樁底位置的信息，比常用的反射波法能夠更為全麵可靠地評價基樁質量狀況，併以一箇工程實例說明瞭技術的具體應用過程，結果錶明，其實測信號明晰，能夠反映缺陷以下樁身的質量信息。
종술료방공투사파법검측기술적연구여응용진전，중점천술료장신결함적검측분석원리，인위대우정부라로적재건공정장，유장신투사도방공적탄성파로경단、간우소차능반영결함이하장신질량급장저위치적신식，비상용적반사파법능구경위전면가고지평개기장질량상황，병이일개공정실례설명료기술적구체응용과정，결과표명，기실측신호명석，능구반영결함이하장신적질량신식。
This paper briefly reviews the research and application progress of parallel seismic testing, focusing on the principle of detection of defects in pile shafts. It is considered that for piles under construction with an exposed top shaft, parallel seismic testing can provide a more comprehensive and reliable evaluation of the pile quality as compared with the conventional reflected wave method, because it has a shorter wave propagation path and lower interference, and can provide additional information on the quality of the pile shaft below the defect position and the location of the pile bottom. A case study was performed to show the application process of parallel seismic testing. The results show that measured signals of parallel seismic testing are clear and can reflect information on the quality of the pile part below the defect position.
