大直径深孔灌注桩施工要点
发布时间：2019-06-19 04:58
【摘要】：大直径桩基断面较大,要求钻机的机械性能足够强大;深孔施工中,随着深度的增加,孔内压力越来越大,排渣与换浆的难度也越来越大,施工中要采用优质泥浆。通过介绍武广铁路广州新客站东平水道桥的桩基施工技术,简要分析大直径深孔灌注桩施工的重点与难点,提出一些处理方法。
[Abstract]:The large diameter pile foundation section is large, which requires the mechanical properties of the drilling rig to be strong enough. in the construction of deep hole, with the increase of depth, the pressure in the hole is increasing, and it is more and more difficult to discharge slag and change slurry, so it is necessary to adopt high quality mud in the construction. This paper introduces the pile foundation construction technology of Dongping Waterway Bridge in Guangzhou New passenger Station of Wuguang Railway, briefly analyzes the key points and difficulties in the construction of large diameter and deep hole cast-in-place pile, and puts forward some treatment methods.
【作者单位】： 中铁大桥局武汉桥梁特种技术有限公司;
【分类号】：U445.551
[Abstract]:The large diameter pile foundation section is large, which requires the mechanical properties of the drilling rig to be strong enough. in the construction of deep hole, with the increase of depth, the pressure in the hole is increasing, and it is more and more difficult to discharge slag and change slurry, so it is necessary to adopt high quality mud in the construction. This paper introduces the pile foundation construction technology of Dongping Waterway Bridge in Guangzhou New passenger Station of Wuguang Railway, briefly analyzes the key points and difficulties in the construction of large diameter and deep hole cast-in-place pile, and puts forward some treatment methods.
【作者单位】： 中铁大桥局武汉桥梁特种技术有限公司;
【分类号】：U445.551
【参考文献】
相关期刊论文 前1条
1 梅子广;黄生根;郝世龙;;超长大直径钻孔灌注桩施工质量控制[J];施工技术;2013年01期
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