doi:10.3963/j.issn.1674-6066.2023.01.013某运动场馆地下通道矩形顶管施工控制技术施振海(深川控股集团有限公司,杭州311000)摘要:为解决地下通道矩形顶管施工中工作井开挖和顶进施工难题,该文以杭州市某运动场馆周边环境提升工程过街地道矩形顶管法施工为研究对象,研究了深基坑支护施工方案和矩形顶管施工方案。结果表明,提出的钻孔灌注桩结合搅拌桩止水帷幕、横向支撑的方式有效解决了工作井和出入口的开挖难题;矩形顶管机选用土压平衡式顶管机,配备有8个刀盘、驱动装置、螺旋输送机以及远程控制系统,研究了顶管端头加固、顶进始发和顶进接收施工关键技术,有效保障了顶管施工的安全穿越。关键词:地下通道;矩形顶管;施工控制;土压平衡式顶管ConstructionControlTechnologyofRectangularPipeJackinginUndergroundPassageofaSportsVenueSHIZhen-hai(ShenchuanHoldingGroupCo,Ltd,Hangzhou311000,China)Abstract:Inordertosolvetheproblemsofworkingwellexcavationandjackingconstructionintherectangularpipejackingconstructionofundergroundpassage,thispaperstudiestheconstructionschemeofdeepfoundationpitsupportandrectangularpipejackingconstruction,takingtheconstructionofcrossingtunnelrectangularpipejackingmethodfortheenvironmentalimprovementprojectaroundasportsvenueinHangzhouastheresearchobject.Theresultsshowthattheproposedmethodofboredpilecombinedwithmixingpilewater-stopcurtainandlateralsupporteffectivelysolvestheproblemofexcavationofworkingshaftandentrance.Therectangularpipejackingmachineadoptstheearthpressurebalancetypepipejackingmachine,equippedwith8cutterheads,drivedevices,screwconveyorsandremotecontrolsys-tems.Thekeytechnologiesofpipejackingendreinforcement,jackingstartingandjackingreceivingconstructionarestudied,effectivelyensuringthesafecrossingofpipejackingconstruction.Keywords:undergroundpassage;rectangularpipejacking;constructioncontrol;earthpressurebalancedpipejacking收稿日期:2023-01-11.作者简介:施振海(1974-),高级工程师.E-mail:503207132@qq.com杭州市某运动场馆周边环境提升工程过街地道采用矩形顶管法施工,工程特点显著[1]。具体为矩形开挖面积大,达到7.1m×4.7m;覆土深度浅,覆土厚度4.6~4.9m,小于一倍的开挖高度;周边管线复杂且距离较近,管线包括...
