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1、西南交通大學(xué)碩士學(xué)位論文大型鋼吊箱圍堰整體浮運(yùn)錨墩定位施工技術(shù)研究姓名：劉杰文申請學(xué)位級別：碩士專業(yè)：橋梁及隧道工程指導(dǎo)教師：李亞東20061001西南交通大學(xué)碩士研究生學(xué)位論文第lI頁AbstractThemostcommondifficultiesduringtheconstructionofdeep-waterfoundationsforbridgesarewater-proofing,soil··proofing,anti—scouringandlandslideete．Thepurposetoconstru
2、ctacofferdamistopreventthewaterandsoiloutsidethecofferdamfromrushingintothecofferdamduringcofferdamconstructionandfoundationconstruction．nlecofferdamshallbedismantledafterthefoundation,abutmentandpierbeingconstructedabovethewaterlevelinordernottoblockthewaterwa
3、yandthestream．Double．wallsteelCOfferdamisoneofwidelyusedwaterproofingcofferdamfortheconstructionofbridgedeepfoundation．Withthedevelopmentofconstxuetiontechnologiesandmechanicalst九lcturesaboutdeep-waterfoundation,large-scalesuspendedsteelcofferdamhasbeingapplied
4、widelyforconstructionofhigh·rise-cappilefoundation．Manufacturingthelarge-scalesuspendedsteelcofferdaminthefactoryandlocatingthecofferdamthroughfloating-transportiontothepiel"positionisoneofdevelopmentdirectionsofthede印·waterfoundationconstructionformodemlongspa
5、nbridges．ThistechniqueCanincreasethemanufacturingaccuracyofthelarge·scalesuspendedsteelcofferdamanddecreasetheassemblingworkinsitu．Thewholemanufacturedandfloat-transportedlarge-scalesuspendedsteelcofferdamintegratesvariousfunctionstogether,suchaSbeingaconstruct
6、ionplatformfordrillingholesforpiles,anorientedstructurefordrivingofsteelcasingtubes，awater-blockingcofferdamforconstructionofpilecapsandpiershaftetc．Itcanconsumedlyshortenthetransitiontimebetweentheendingofpiledrillingconstructionandthebeginningofpilecapsconstr
7、uction,andSOshortenthewholefoundationconstructionperiod．However,thestructuralsizeofthistypeofcofferdamishugewhenitWaSwhollymanufacturedtotheshape，alsoithasspecialrequirementsforanchor-piersystemandthelocationprecigionofcofferdametc．，thusbringingaseriesofdifficu
8、ltiesincofferdam’Sfloating—transportation，draggingandlocating．西南交通大學(xué)碩士研究生學(xué)位論文第1II頁Inthisthesis．takingthedeep．waterfoundationofNo．2pieroftheWuHaIlTianxingzhourail-cum-roadYan
