资源描述:
《天津地铁盾构隧道加固旋喷桩施工技术交底》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、施工技术交底工程名称:天津地铁3号线13标右线盾构隧道编号:总包单位中铁隧道集团三处有限公司分包单位交底内容到达井端头加固旋喷桩施工技术交底交底时间2009年09月25日1、工程概况及工程地质情况2、施工准备3、施工工艺4、资源配置5、工期计划6、质量保证措施7、安全保证措施8、文明施工保证措施附:旋喷桩桩位图交底人:复核:时间:年月日接收人:生产经理现场技术(含安全)施工工长班组长mL.V1--volumeofthesampleusedfordeterminationofsulfuricacidsolution,mL.M--theweightofthesample
2、,g.Suchaspoormeetstherequirements,takethearithmeticmeanoftheseconddeterminationasaresult.Allowanalysisofpersonnelsimultaneouslyorinquicksuccessionforthesecondusedfordeterminationoftheabsolutevalueofthedifferencebetweenthevolumeofsulfuricacidsolution.Thevaluedoesnotexceed0.1.(B)Spectrop
3、hotometricmethods(arbitrationlaw)1,theprinciple:inthepresenceofacatalyst,sulfuricacidstarchanditsderivativesandreactionproductsofalkali,anddistillingammoniarelease,andcollectedwithasulfuricacidsolution,addreagentusingspectrophotometerdeterminationofnitrogencontentammoniumsaltandturnedi
4、nto.Thismethodissuitablefornitrogencontentoflessthan0.025%(m/m)samplesofstarchanditsderivatives.2,reagentinthedeterminationprocess,onlyuseanalyticalgradereagentanddistilledwater,oratleastthepurityofwater.Concentratedsulphuricacid:96%(m/m),ρ20for1.84g/mL.Sodiumhydroxidesolution:40%(m/m)
5、,ρ201.43g/mL.Catalyst:formedbythe97gand3Gofpotassiumsulfateanhydrouscoppersulfate.Ammoniumsulfate.Standardsolutionofsulphuricacid:about0.1mol/Lcalibrationsolution.Nyquistreagents:atleasttwodaysbeforeuse,100giodideofmercury(ⅱ)and70glOOmLsolutionofpotassiumiodideinwater,theotherwill700mL
6、244gpotassiumhydroxidedissolvedinwater1000mLbottleandmakeitcooltoroomtemperature.Theabovemercuryiodide(II)/potassiumiodidesolutionintothevolumetricflaskandslowly,...Inside,inthedark.3,apparatus,Kjeldahlflasks:volumetypicallybetween500~800mL.Digestion:theKjeldahlflasktotilt一、工程概况及工程地质概况
7、1、工程概况本工程盾构到达井端头采用φ800@600旋喷桩进行端头地层加固,旋喷桩按梅花形布置。端头地基纵向加固长度为9.0m(设计加固长度为6米,盾构机主机长度为8.68米,为保证出洞安全,加固区长度增加到9米),加固宽度为盾构隧道轮廓线左右各3.0m,竖向加固范围为盾构隧道结构轮廓线上下各3.0m(-6~-18m),详见下图所示。mL.V1--volumeofthesampleusedfordeterminationofsulfuricacidsolution,mL.M--theweightofthesample,g.Suchaspoormeetsthere