摘要
武穴长江公路大桥15#主墩34#桩和11#桩出现桩孔倾斜超标的成孔质量事故,分别从客观到主观、机械设备到人员全面地找出事故原因,针对性地采取钻头创新、钻进参数控制、施工管理等方面措施,利用结构工程抗震防线思想改进了钻具结构,为后续成孔质量提供了技术保障。后续的检孔结果绝大多数符合规范要求,表明桩孔垂直度控制技术有效地解决了倾斜岩面处易发生斜孔超标的问题。
Pore-forming quality accident of pile hole incline exceeding standard in 15# main mound and 34#,11# pile in Wuxue Changjiang highway bridge occurs.Analyze the accident reason from objectivity,subjectivity,equipment and people,and use the measures of drill innovation,controlling drilling parameter and construction management;improve structure of drilling tool with the idea of structural engineering seismic line so as to offer technical guarantee for following pore-forming quality.Most of the following quality tests are under standards,showing that pile hole perpendicularity controlling technology can effectively solve the problem that inclined hole is likely to exceed the standard at the inclined rock face.
作者
徐斌
付连红
徐新战
罗平
杜鹏
Xu Bin;Fu Lianhong;Xu Xinzhan;Luo Ping;Du Peng(Ningbo Yitong Construction Co.,Ltd.,Ningbo 315800,China;Haikou University of Economics,Haikou 571127,China)
出处
《甘肃科学学报》
2019年第4期90-95,共6页
Journal of Gansu Sciences
基金
海南省重点研发计划超大直径钻孔灌注桩技术研究与应用(ZDYF2017097)
关键词
桩孔
斜孔
倾斜岩面
垂直度控制
Pile hole
Inclined hole
Incline rock face
Perpendicularity control
