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Piling的PDA test和Working Load Test (WLT) ?
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本帖最后由 kclim_82 于 12-1-2012 11:26 AM 编辑
在一场新的工地,当打完所有的piling时候
该如何断定 选择哪个pile来做PDA test和Working Load Test (WLT) ?
RC driven pile, spun pile, bored pile都需要做这2个test 吗?
据我所知, Working Load Test (WLT) 是放那些stone ( 1.0WL & 2.0WL)然后record settlement & plot graph的,
那么PDA test又是怎样的呢? |
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发表于 13-1-2012 06:18 PM
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发表于 23-1-2012 02:44 PM
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在一场新的工地,当打完所有的piling时候
该如何断定 选择哪个pile来做PDA test和Working Load Test (WLT) ?
RC driven pile, spun pile, bored pile都需要做这2个test 吗?
据我所知, Working Load Test (WLT) 是放那些stone ( 1.0WL & 2.0WL)然后record settlement & plot graph的,
那么PDA test又是怎样的呢?
kclim_82 发表于 12-1-2012 11:23 AM 
你所说的wlt应该是mlt,maintain load test,可以分成两种,test on working pile/prelim test pile。working pile通常test to 2x working load,
prelim test pile就3x working load。
除了放stone以外也可以用reaction pile来jack那个load.
要做什么test是看consultant定的,要如何选test pile呢?bored pile/driven pile的criteria都不一样的。
-bored pile-通常都选soil比较差的area/engineer想知道的area。
-driven pile通常都看bored log才决定,选那些特别的pile来test,比如特别长/特别短的。
PDA=dynamic pile testing,可以check pile的integrity,之后用CAPWAP来estimates total bearing capacity of a pile or shaft, as well as resistance distribution along the shaft and at the toe。
除了以上两种,还有pit, sonic logging...
我不是geo的engineer,有错表shoot我 |
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
楼主 |
发表于 23-4-2012 05:29 PM
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你所说的wlt应该是mlt,maintain load test,可以分成两种,test on working pile/prelim test pile。w ...
y2vlim82 发表于 23-1-2012 02:44 PM 
会打坏PILE吗?怎么办?IF BROKEN |
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
楼主 |
发表于 4-4-2013 05:41 PM
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发表于 18-6-2013 06:10 PM
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working load is it same with ultimate load test? |
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发表于 8-8-2013 10:18 PM
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crazy_old_men 发表于 3-6-2013 10:31 AM
prelim pile = preliminary pile. 通常在project开始前install来testing用。and is also a non working p ...
Preliminary pile一定会test到damage吗?
还有, 如果Working load pile test到damage了,怎么办? |
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发表于 31-8-2013 08:45 PM
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crazy_old_men 发表于 12-8-2013 10:59 PM
preliminary test normally will test to 3 times working load.
if working pile test damage means ...
Preliminary test pile不会拿来使用??? |
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发表于 31-8-2013 11:30 PM
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staadpro 发表于 31-8-2013 08:45 PM 
Preliminary test pile不会拿来使用???
其实,还是refer回你的project specification...
我做过一场project,specification指明contractor可以propose用preliminary pile 来做 working pile,but subject to SO's approval...
基本上,
Prelim Pile 是 test on 3x working load
Working Pile 是 test on 2x working load
并没有硬性规定Prelim Pile就不可以拿来使用!
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