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1、目錄一、前言1二、工法特點(diǎn)3三、適用范圍3四、工法原理及關(guān)鍵技術(shù)3五、工藝流程及操作要點(diǎn)4(一)工藝流程41、三導(dǎo)洞施工法(見圖2)42、中導(dǎo)洞+分部開挖法(見圖3)53、施工工藝流程(見圖4)5(二)操作要點(diǎn)61、洞口工程施工準(zhǔn)備62、長管棚施工63、反壓回填土及地表導(dǎo)管注漿74、中導(dǎo)洞開挖85、側(cè)導(dǎo)洞開挖86、中隔墻施工(參見圖6)87、正洞施工98、支護(hù)體系施工99、防排水體系1010、二次襯砌施工1011、監(jiān)控量測11六、機(jī)具設(shè)備13七、勞動力組織13八、質(zhì)量控制14九、安全措施14十、效益分析14十一、工程實(shí)例15plugu
2、ploopholesinmanagement.Themembersoftheleadershipteamtoinaccordancewiththeirrespectivefunctionsandduties,earnestlyimplementthegoodchargerangeofresponsibilityforproductionsafety,catchhiddeninvestigationandremediationascurrentahardtask,personallycheck,superviseandurgethere
3、ctificationinplace.ThecountyGovernmenttoimplementtoensurethatwithinthejurisdictionofallwalksoflifeofresponsibilityforproductionsafety,donotstaydead.TherelevantgovernmentdepartmentstoKaoshiproductionsafetysupervisionresponsibilities,doagoodjobintheindustryinthisfieldinve
4、stigationandsecurityrisks,havetocarryoutremediationtoensuresafetyinproduction.Inviewoftheexistingproblems,conscientiouslydoagoodjobofinspectionworkintheindustry,doin-depthinspectionlinetoreally,inspectionoflawenforcementshouldbestrict,styleofworktohard,rectificationmeas
5、urestobeimplemented.Theindustrydepartmentinchargeoftheperformanceoftheirdutiesandmajorsafetyhazardsinvestigationremediationtoconductsupervisionandinspection,ofworkarenoteffective,thedutynottoimplement,throughinterviews,bulletin,accountabilityandothermeasures,ZadokPromot
6、ingtheimplementationoftherectification.Thecountyandtheparkmanagementcommitteetoearnestlyimplementtheterritorialsupervisionresponsibility,beartheoverallresponsibilityforproductionsafetyworkintheregion,tofurtherclarifythegovernmentleadershipandtheleadershipofvariousdepart
7、mentsofproductionsafetyworkresponsibility,judgedtheregional15六車道大跨淺埋雙連拱隧道施工工法林永強(qiáng) 崔根群 辛國平 陳銳(中鐵隧道集團(tuán)有限公司第一工程處)一、前言雙連拱隧道是在高速公路通過山勢不高、長度較短、上下行線在此分離不開的地段設(shè)置雙跨連拱隧道,具有易于選線、節(jié)約用地、有利環(huán)保等優(yōu)點(diǎn),但造價(jià)一般較高。隨著我國的高等級公路的迅猛發(fā)展,在建或擬建的眾多高速公路均已按六車道進(jìn)行規(guī)劃設(shè)計(jì)或預(yù)留,特別是在山區(qū)面積所占比例大、地形條件復(fù)雜的山嶺重丘地區(qū)(如我國的中西部)將出現(xiàn)越來
8、越多的六車道大跨雙聯(lián)拱隧道。如:上海至武威國家重點(diǎn)公路河南境南陽內(nèi)鄉(xiāng)至西坪段(宛坪高速)連續(xù)出現(xiàn)了16座六車道雙連拱隧道,國內(nèi)十分罕見。其隧道單跨斷面為多心圓結(jié)構(gòu),邊墻為曲墻,中墻為直墻,單跨凈寬14.1m,凈高8.2m