2013年10月上 施工技术 第42卷第19期 CONSTRUCTION TECHNOLOGY 61 D0I:10.7672/sgj2013190061 长螺旋钻孔后插钢筋笼灌注桩施工工艺与设备* 杨建龙,吴春林2 (1.江苏省送变电公司,江苏南京211102;2.中国建筑科学研究院地基基础研究所,北京100013) [摘要]从工艺与设备研制、样机试验、成桩质量及荷载试验等方面对长螺旋钻孔后插钢筋笼灌注桩施工工艺进行 了闹述,并就其中关键部件与环节,如振动锤、钢筋笼导入管、导入管与钢筋笼的连接等作了较详细的介绍.试验 表明,长螺旋钻孔后插钢筋笼灌注桩施工工艺施工简洁、无泥浆或水泥浆污染、噪声小、效率高、成本低,承载力高 且成桩质量稳定,是一种很好的灌注桩施工方法. [关键词]地下工程;柱基础;钻孔灌注桩;导入管;试验;施工技术 [中图分类号]TU753.3 [文献标识码]A[文章编号]1002-8498(2013)19-0061-04 Construction Technology and Equipment of Continuous Flight Auger Bored Pile with Subsquently Inserted Cage Yang Jianlong' Wu Chunlin2 1.Jiansu Power Transmission and Transformation Corporation Nanjing Jiangsu 211102 China; 2.Institute of Foundation Engineering China Academy of Building Research Beijing 100013 China) Abstract:This paper describes some aspects of continuous flight auger bored pile with subsequently inserted cage such as its construction technology and equipment prototype piling rig quality control load test etc.The key ponents and procedure for example vibration hammer insertion guiding rod and its connection with steel cage are introduced in detail.Experiments demonstrate that this construction method has advantages such as rapid installation no mud or cement slurry low noise high production low cost high capacity and good quality. Key words:underground;piles;bored piles;ingress pipe;testing;construction 1灌注桩技术概况 2)变形问题居住小区或写字楼的配套设施 随着我国经济的发展,基本建设投资规模日益(如停车场或一些娱乐设施)均放人地下,对于这类 增大,为节省土地资源、降低投资成本,高层建筑越建筑通常在主楼与地下停车场(或裙楼)之间设置 来越多,在建筑场地存在地下水的情况下采...
长螺旋钻孔后插钢筋笼灌注桩施工工艺与设备.pdf
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