建筑施工·第45卷·第1期37高压旋喷钻机变截面工艺应用于近海锚杆施工的研究张东李乾范禹尹寿杰刘昕中建八局第一建设有限公司山东济南250100摘要：为保证近海地区抗浮锚杆的施工质量和应用效果，提出并介绍了高压旋喷钻机变截面施工工艺，通过在成孔过程中控制锚杆成孔直径，实现下大上小的变截面锚杆结构，从而提高锚杆的抗拔力，可以很好地克服地下水及地质条件差对抗浮锚杆施工的影响。依托青岛太平洋梦时代广场C地块二期工程案例实施情况，证明高压旋喷钻机变截面施工工艺具有施工速度快、经济效益好、质量高、抗拔力大的优点，值得进一步推广应用。关键词：抗浮锚杆；近海地区；高压旋喷钻机；变截面工艺中图分类号：TU753文献标志码：A文章编号：1004-1001(2023)01-0037-03DOI：10.14144/j.cnki.jzsg.2023.01.010StudyonApplicationofHigh-pressureRotaryGroutingDrillwithVariableCrossSectionTechnologyinOffshoreAnchorBoltConstructionZHANGDongLIQianFANYuYINShoujieLIUXinTheFirstCompanyofChinaEighthEngineeringBureauLtd.,Jinan250100,Shandong,ChinaAbstract:Inordertoensuretheconstructionqualityandapplicationeffectofanti-floatinganchorboltsinoffshoreareas,thevariablesectionconstructiontechnologyofhigh-pressurerotarygroutingdrillisproposedandintroduced.Bycontrollingtheholediameterofanchorboltsduringtheholeformingprocess,thevariablesectionanchorboltstructurewithlargebottomandsmalltopisrealized,soastoimprovetheanti-pullingforceofanchorbolts,whichcanwellovercometheimpactofpoorgroundwaterandgeologicalconditionsontheconstructionofanti-floatinganchorbolts.RelyingontheimplementationofthesecondphaseprojectofQingdaoPacificDreamTimesSquareBlockC,itisprovedthatthevariablesectionconstructiontechnologyofhigh-pressurerotarygroutingdrillhastheadvantagesoffastconstructionspeed,goodeconomicbenefits,highquality,andlargeupliftresistance,whichisworthfurtherpromotionandapplication.Keywords:anti-floatinganchorbolt;offshorearea;high-pressurerotarygroutingdrill;variablecrosssectionprocess强/中风化带的基坑筏板施工为例，阐述了抗浮锚杆节点的具体工艺，填补了相关规范中的空白；任志平等[6]基于四川地区的某超高层建筑基坑施工实践，针对采用传统方法施工抗浮锚杆时...
