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　張學(xué)文?。ㄉ虾Ｊ薪ㄖ茖W(xué)研究院　200032）

[提要]  以某實(shí)際工程為背景，介紹在用PIT進(jìn)行常規(guī)的低應(yīng)變檢測(cè)后，發(fā)現(xiàn)較高比例的樁在接頭位置都存在缺陷，通過(guò)進(jìn)一步用PDA打樁分析儀進(jìn)行測(cè)試，并結(jié)合相關(guān)資料進(jìn)行綜合分析，對(duì)樁的缺陷性質(zhì)做出了正確判別，由此杜絕了工程隱患。
[關(guān)鍵詞]  預(yù)制方樁  檢測(cè)  波形曲線(xiàn)  PIT PDA沉降

Grounded on an actual project of pile testing, defects are found in relatively high ratio test piles at joints based on PIT test results. By using pile-driving analyzer for further testing on these defective piles and analyzing all these test results comprehensively with other relative materials, we can ascertain the properties of defects of these test piles correctly and avoid potential engineering trouble.
Keywords:  precast concrete square pile; test curves; PIT; PDA; settlement

　　參　考　文　獻(xiàn)

1. PDA-W Users Manual.  Pile Dynamics,  Inc. ,2001,7.
2. Webster S D, Teferra W. Pile damage assessments using the pile driving analyzer. Stress wave ' 96 Conference, Orlando, FL, 1996 .