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首页> 外文会议>2011 Second International Conference on Mechanic Automation and Control Engineering >Deep defects analysis and treatment of in-situ bored pile based on grouting technique
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Deep defects analysis and treatment of in-situ bored pile based on grouting technique

机译：基于灌浆技术的钻孔灌注桩深层缺陷分析与处理

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摘要

In construction of pile foundation of a certain bridge main piers, in-situ bored piles with diameter 2000mm and length 37m were used. One of the piles was blocked with a second perfusion, and deep defects occurred. Considering above part of defect pile can not meet the design requirements, deep defects detection and treatment should be undertaken. Low strain dynamic test and core drilling method are used to take deep defects detection and treatment and grouting strengthening scheme is put forward. Results show that the method in this paper is feasible and effective and pile body strength and integrity can reach requirements.
机译：在某桥梁主墩的桩基施工中，采用直径2000mm，长度37m的现场钻孔桩。其中一堆被第二次灌注阻塞，并出现了严重的缺陷。考虑到缺陷桩的上述部分不能满足设计要求，应进行深层缺陷的检测和处理。采用低应变动力试验和岩心钻进法进行深层缺陷的检测与处理，提出了灌浆加固方案。结果表明，该方法可行有效，桩体强度和完整性可以达到要求。

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