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Preloaded Tip-Grouting & Improvement on Bearing Capacity of Drilled Shafts

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鲜花(279) 鸡蛋(4)
ljmtidilgw 发表于 2013-7-9 18:07:01 | 显示全部楼层 |阅读模式
ABSTRACT

Preloaded tip grouting has been proposed in Taiwan to enhance the drilled shaft bearing capacity that would be discounted due to drilling and installation. The technique takes the advantages of reverse shears along the shaft and compactions of bearing stratum underneath the tip as a result of the grouting Nonetheless, the mechanism and causes that would bring up the bearing capacity of the drilled shafts are yet to be proven. This paper discusses results of a model study and numerical simulations of the tip grouting with the aim to verify the concepts behind the technique. Results of this study generally indicate the improvement of pile load capacity could be attributed to the prestressed skin resistance and the preloaded bearing stratum, as well as the reinforcement of pile tip materials by the injected grouts. Based on limited data from the model testing of this study, the ultimate pile load capacity (Qu) could be increased by 23 ~ 52% due to the tip grouting, in which tip resistance (Qp) contributed by about 1/4 and shaft resistance (Qs) by 3/4 of the entire improvement


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 楼主| ljmtidilgw 发表于 2013-7-9 18:08:32 | 显示全部楼层
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Preloaded Tip-Grouting & Improvement on Bearing Capacity of Drilled Shafts.rar

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sjzdh 发表于 2013-7-9 19:09:26 | 显示全部楼层
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hll2118 发表于 2013-7-9 20:10:41 | 显示全部楼层
感谢楼主提供的资料,这年头灌水也有人管了呀

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zong2006 发表于 2013-7-10 14:17:49 | 显示全部楼层
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AA0016432 发表于 2013-7-27 09:42:52 | 显示全部楼层
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远山呼唤 发表于 2013-12-1 16:12:11 | 显示全部楼层
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ljmabcljm 发表于 2020-3-31 00:07:04 | 显示全部楼层
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zspkd 发表于 2020-4-2 11:33:17 | 显示全部楼层
PDF版

Preloaded Tip-Grouting & Improvement on Bearing Capacity of Drilled Shafts.pdf

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ljmabcljm 发表于 2020-9-10 18:07:57 | 显示全部楼层
哥最近喜欢上了顶贴,因为,如果帖子火了,那有哥的功劳。如果帖子被顶沉了....哥也会很有成就感...因为是哥搞沉的~~大家切记~不要迷恋哥~哥只是一个传说
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