建筑施工·第44卷·第12期2979裸岩地质钢栈桥防洪加固施工技术楼政权崔凤杰陈慧娜李子豪任鹏霏浙江中天恒筑钢构有限公司浙江杭州310008摘要：以云碧峰景观桥项目钢栈桥施工为主要研究对象，介绍裸岩地质钢栈桥防洪加固施工技术，通过钢管桩定位装置进行精确定位施工，钢管桩第1道平联采用可承受竖向荷载的钢梁，将主横梁架设于第1道平联上，留出桩上口，利用非暴雨、台风季节同步进行引孔加固及后续材料运输，提高施工工效。钢管桩底部通过引孔加固施工将钢筋混凝土灌注桩锚固嵌入岩层，实现钢栈桥暴雨季节防洪加固。云碧峰景观桥项目钢栈桥施工效果良好，可供同类工程借鉴。关键词：裸岩地质；防洪加固；钢栈桥；钢管桩定位装置中图分类号：TU997文献标志码：A文章编号：1004-1001(2022)12-2979-04DOI：10.14144/j.cnki.jzsg.2022.12.048ConstructionTechnologyforFloodControlReinforcementofSteelTrestleinBareRockGeologyLOUZhengquanCUIFengjieCHENHuinaLIZihaoRENPengfeiZhejiangZhongtianHengzhuSteelStructureCo.,Ltd.,Hangzhou,Zhejiang310008,ChinaAbstract:TakingtheconstructionofsteeltrestleofYunbifengLandscapeBridgeProjectasthemainresearchobject,theconstructiontechnologyoffloodcontrolandreinforcementofsteeltrestleinbarerockgeologyisintroduced.Theprecisepositioningconstructioniscarriedoutthroughthepositioningdeviceofsteelpipepiles.Thefirsthorizontalconnectionofsteelpipepilesadoptssteelbeamsthatcanbearverticalloads.Themainbeamiserectedonthefirsthorizontalconnection,leavingtheupperopeningofthepile.Theholeleadingreinforcementandsubsequentmaterialtransportationarecarriedoutsynchronouslyinnonrainstormandtyphoonseasonstoimprovetheconstructionefficiency.Thebottomofthesteelpipepileisanchoredandembeddedintotherockstratumthroughtheholeleadingreinforcementconstruction,soastorealizethefloodcontrolandreinforcementofthesteeltrestleintherainstormseason.TheconstructioneffectofthesteeltrestleofYunbifengLandscapeBridgeProjectisgood,whichcanbeusedasreferenceforsimilarprojects.Keywords:barerockgeology;floodcontrolreinforcement;steeltrestle;steelpipepilepositioningdevice1工程概况1.1工程概况云碧峰景观桥主桥跨越江西省上饶市信江河，为钢桁连续刚构桥，跨径布...
