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1、目录一、前言1二、工法特点3三、适用范围3四、工法原理及关键技术3五、工艺流程及操作要点4(一)工艺流程41、三导洞施工法(见图2)42、中导洞+分部开挖法(见图3)53、施工工艺流程(见图4)5(二)操作要点61、洞口工程施工准备62、长管棚施工63、反压回填土及地表导管注浆74、中导洞开挖85、侧导洞开挖86、中隔墙施工(参见图6)87、正洞施工98、支护体系施工99、防排水体系1010、二次衬砌施工1011、监控量测11六、机具设备13七、劳动力组织13八、质量控制14九、安全措施14十、效益分析14十一、工程实例15pluguploopholesinmanagement
2、.Themembersoftheleadershipteamtoinaccordancewiththeirrespectivefunctionsandduties,earnestlyimplementthegoodchargerangeofresponsibilityforproductionsafety,catchhiddeninvestigationandremediationascurrentahardtask,personallycheck,superviseandurgetherectificationinplace.ThecountyGovernmenttoimpl
3、ementtoensurethatwithinthejurisdictionofallwalksoflifeofresponsibilityforproductionsafety,donotstaydead.TherelevantgovernmentdepartmentstoKaoshiproductionsafetysupervisionresponsibilities,doagoodjobintheindustryinthisfieldinvestigationandsecurityrisks,havetocarryoutremediationtoensuresafetyi
4、nproduction.Inviewoftheexistingproblems,conscientiouslydoagoodjobofinspectionworkintheindustry,doin-depthinspectionlinetoreally,inspectionoflawenforcementshouldbestrict,styleofworktohard,rectificationmeasurestobeimplemented.Theindustrydepartmentinchargeoftheperformanceoftheirdutiesandmajorsa
5、fetyhazardsinvestigationremediationtoconductsupervisionandinspection,ofworkarenoteffective,thedutynottoimplement,throughinterviews,bulletin,accountabilityandothermeasures,ZadokPromotingtheimplementationoftherectification.Thecountyandtheparkmanagementcommitteetoearnestlyimplementtheterritoria
6、lsupervisionresponsibility,beartheoverallresponsibilityforproductionsafetyworkintheregion,tofurtherclarifythegovernmentleadershipandtheleadershipofvariousdepartmentsofproductionsafetyworkresponsibility,judgedtheregional15六车道大跨浅埋双连拱隧道施工工法林永强 崔根群 辛国平 陈锐(中铁隧道集团有限公司第一工程处)一、前言双连拱隧道是在高速公路通过山势不高、长度
7、较短、上下行线在此分离不开的地段设置双跨连拱隧道,具有易于选线、节约用地、有利环保等优点,但造价一般较高。随着我国的高等级公路的迅猛发展,在建或拟建的众多高速公路均已按六车道进行规划设计或预留,特别是在山区面积所占比例大、地形条件复杂的山岭重丘地区(如我国的中西部)将出现越来越多的六车道大跨双联拱隧道。如:上海至武威国家重点公路河南境南阳内乡至西坪段(宛坪高速)连续出现了16座六车道双连拱隧道,国内十分罕见。其隧道单跨断面为多心圆结构,边墙为曲墙,中墙为直墙,单跨净宽14.1m,净高8.2m