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1 情况简介南阳至驻马店公路某桥下部钻孔灌注桩施工过程中,发生了一起由卡管引起的断桩事故。在后来的处理过程中,考虑了几种方案,通过研究分析,最终采用“压浆法”进行修复,取得了成功。考虑到该工程事故的发生及处理过程对其它工程中有借鉴作用,特总结如下:发生卡管事故的桩直径100cm,设计桩长22m。采用反循
Brief introduction 1 Nanyang to Zhumadian a bridge under the bored pile construction process, occurred by a stuck tube caused stubble accident. In the subsequent treatment process, considered several options, through research and analysis, the final use of “grouting ” to repair and achieved success. Taking into account the occurrence of the engineering accident and the process of reference for other projects have a special summary is as follows: the accident occurred in the pile diameter of 100cm, design pile length 22m. Use reverse