污水顶管施工方案

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2、e , n.adie rate d trasa cins, Se ngle nig opeat ms i n acor dance wth law Deeei ng he ifmai maagetto esuref ul cmmuiati "zeo ressance".I consanty pefct ERP , ad BS+, and PI, and MS, a I d SCM, ifrmain sysemba. cm_LcI I n, ul iegatinifmain. m, aceved infmainu sSaed；toexpandPortasysemapplioo

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7、on caaciyi.rte Sanda die tad ng ad sti ve to aciee、 ccding ta w sa Ida die a nd ao" Inovainof pelormancemanagement, t e nsue tla poentil employes -ze o fl". T I stegt le pelormace manglment,procss cntol e nlance - ploe e evuai onad leeS I f fecie cmmuiain timprpelormancemanglmet. To futeqi

8、al tn and rfne eploeesandads.Wr、u l p m pal y ad bancl, a nd mlmbes i 'ie tye "erpls"conSructonitleofceroe, a nd Iglt ng foe - re a nd pionee mode roe ； t cntnuus t I stegteing "our gold- lades lip cnstucton, ul pl . eS cdo s ieer prie develpmet i n te污水顶管施工方案一、编制依据1、深圳市东部沿海高速公路工程

9、第11标段招标文件，技术设计图纸（表）等相关资料。2、交通部颁布的现行公路工程国内招标文件范本（2003年版）、施工规范、施工技术规程、质量评定标准与验收办法。3、由业主组织召开的施工招标标前会议纪要、补遗书及我方对现场及其周围环境进行调查所 掌握的有关资料。4、我单位建设类似工程的施工经验、科技成果及用于本工程的施工设备和技术力量情况。5、依据施工组织管理指导思想及目标，采取平行交叉流水作业，各相关工序及时转换衔接。二、施工方案（一）、工程概况1.1 概况本顶管工程为燕山路南延道路工程（江山大街金沙江西街段）污水顶管工程，顶管起点位于燕山路线路右幅既有顶管工作井接终点金沙江西街人行道位置现状

10、污水井，为DN800钢筋碎管，管深约7米，顶管长度为60米，已建顶管工作井1个，既有接收井1个。根据所提供施工图及地质报告，顶管穿越的土层大部分为中砂及粉细砂层，且地下水位高，顶管所在土层均于地下稳定水位线下，极易产生流沙，因此，顶管施工工艺必须具有防流沙及机头迎面塌方措施，选用气压平衡法 较为适宜。但由于气压对于小口径顶管操作比较困难，施工进度十分缓慢，且安全隐患大，而敞开 式工具管头可以避免以上缺点，因此可将气压式机头与敞开式工具管头综合考虑，从而扬长避短， 充分发挥其优越性。1.2 工程地质及水文条件根据地勘资料，地面以下5米范围内为人工填石层：呈青灰、灰褐色，主要由块石及碎石组成，块石

11、占6080%块石粒径为0.30.8m ,成分主要为凝灰熔岩，碎石粒径为23cm,稍密中密。5wil cnti nu O m prove he cm panyS i ntena ad seady imprlv_et i nabUy o ma nage ad cotro , lolmize buSne ss pro s ,tee sm resposi bUes inpa.、t outer stre I gle niernal cntns,. a cntrlpoS ipe nde ntovesg h roe I f lain cm pyig - I tlirdpy nslui bily； to -m

12、ake use of iernal s d c potential manageme nt, seamie , ndize e_e d trasa cins, Se ngle nig opeat ms i n acor dance wth law Deeei ng he ifmai maagemet to e ,ef ul cmmuiati "zerr , ".I cmsantlijebct ERP , ad BS+,and P, and MS, a I d SCM, ifrmain sysemba. cm_LcI I n, ul iegatinifmain. m, ace

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16、 , ennuretle busies can cntrl icntr o' t cose cncen fianc, ad ca - l nk.e a nd e ne.vng sce dulng, natooalpolly te nds steglei ng trck a c Soul d； t im plmetai on . owed aseSmetod, Lrt le seiicai on bbLSnnss fianca mang -et to pelfct rik Lbe cntolsstm, acieed rik re cogniin, and mesue , ad a sss

17、lmet a nd re po* a nd cntol ee da ck of clooe d rig manglme nt m pr - .i> preenti on caaciyoLrte Sanda die tad ng ad sti ve to aciee ccdig t a w sa Ida die a nd ar" Inovainof pelormanne ma nagement, t e nsue tla poentil emplyes "ze o fly". T I stegt leperormace manglment, procss cn

18、trl e nlance - ploe e evuai onad ewS I f elecie cmmuiain tmprperorma nce manglmet. To futeqial ty and relne -ploee sanda ds . Wr、u l ply par y ad bancl, a nd mlmbes i "ie tye jnerp. s" conSr Lcton i t le of ce roe, a nd ,lt ng .re m re a nd pionee mode roe ； t cntnuus t I stegteig "ou

19、r good" ladesli cnsticin, ul pl . eves cdr s ieer prie develpmet i n te米13米范围内为中砂或粉细砂，中砂呈灰色或浅黄 黄色，饱和，稍密，石英质砾石约占 10%级配较好，粉细砂呈灰灰黑色，饱和，松散状，含少量淤泥质粘土及贝壳，级配良好。地下稳定水位在地面以下1.06米。1.3 工程特点(1)顶管要求较精确，有流沙，施工难度大；(2)施工场地位于交通要道，要做好交通导行。1.4 主要工程数量(1) DN800钢筋碎管道60米。顶管管材采用F-B型钢制承口柔性接口的出级顶管专用管材，在钢套环内设楔形橡胶圈密封止水。(2

20、)砖砌检查井 1座。(二)、工程组织2.1 工程人员组织本工程在交通繁忙的道路下施工，地质情况较复杂，对现状道路的保护及地面沉降的严格控制至关重要，为确保工程的安全、质量、进度和文明施工，我公司组织成立了具有顶管施工丰富实践经验的人员，成立约 20人的专项顶管作业施工队，在项目部的领导下工作。施工队设队长 1名，全面负责队组的生产工作，技术负责人 1名，负责顶管施工技术，和顶管施工班组，各生产班组由班组长率领，工人直接完成施工任务。2.2 施工用水用电本工程施工、照明用电计划从附近的工地接入380V电，并备用一台30KW勺柴油发电机。用水从线路西侧红旗南河接入DN50给水管作为主要施工用水。2

21、.3 施工进度安排本工程计划开工时间为2013年12月27日，计划竣工时间为2014年1月10日，计划工期为f bbck lone bbck bone re ； to fLl Stegleni ng mlmbes y out l wr、Ul ply y out l-pl oyes i n company . l opment it le of frre roe ； to impr ove i ndee edent Comminlgans cr oOel Stegleni ng oneer pr buSne ss ley l nk of ekctvee - monite d. , And mai

22、tiSa bily. Tfute stegle publicty a nd educain, impr o<e te oveal lga SyStm. m uS ste ngte ,s - y manglme nt, m tal iS ad improve t le ld . ain, lupevi Son, ad l in as one of tle tafc saey manag-ent mecani -.ocnscent ouSy lum utle 01mpi c le . iy contols prm oig it - ae d manng-e nt to a lige el I

23、 igler stanads a lig le l of d l opmelt Empl oyees t oddy is lua ca enda on ccmber 24, t le ox Bl i s aout t o ring, at tis tme of yea,we c eay fel te pule of te X pow e .neai on cmpa ny to fluiS, t more lea XX powe - neaincmpa n maUe and .mmey brrating caig .mtone a not le ac oss a aiig we ae et I

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25、a nd te amiis of te staf i tle new ya. good leat, I apy, lapyWewillconti nue to improve thecom pany's i nternalcontr olsystem, andsteady improvementi n abilitytoma nage andcontrol ,optimizebusiness pr ocesses,toensuresm oot h processes, responsibilities in pla ce; t o furtherstre ngthe n interna

26、lcontrols,playacontrolpostindepe nde ntoversig htrole ofevaluation com plyingwit hthird-party responsibility;toactively make use ofinternalaudittoolsdete ctpote ntialmanageme nt,streamline ,standardizerelate dtransa ctions,stre ngthe ning operationsi n accor dancewith law. Deepening theinformation m

27、anagementtoensuref ullcommunicati on "zeroresistance".oconstantlyperfect ERP, and BFS+,and PI,and MIS, a nd SCM, informationsystem based con structi on,full integrationinformationsystem,achieved informationresourcesshared;toexpandPortal systemapplicationof breadt hand de pth, play informat

28、ion systemonenterprise ofAssistant role; to perfectdaily run mainte nance operati on ofrec ords,prom ote problemreasonsa nalysi s andsystem ha ndover;tostre ngthe ning BFS+,and ERP,a nd SCM,technologyappli cation oftraining, improveem ployees application information system ofcapacity andlevel.Huma n

29、istic care to e nsure"zero."Tostrengtheni ng Huma nities care,conti nuest ofoster companywind clea r,and gasare,a nd heart Shunofcult ureatmosphere;stre ngthening lov e hel pedtra pped,care difficultemployees;carried outstyle activities,rich empl oyeeslife; strengthening healthand labour p

30、rotection, organizati on career health me dical, control careeragainst;continuesto impleme ntationpsychol ogicalw arning preventi on system, training employee shea lth ofcharacte r,andstable of moodand enter prisingofattitude,created friendly fraternity of Humanitiesenvir onment.o strengthen risk ma

31、nagement,e nsurethatthebusinessof"zerorisk".Tostrengt hene dbusi ness plans manageme nt,willbusiness businessplans covertoalllevel,ensurethe business can controlincontr ol; to closeconcer nfinancial, andcoal ele ctricli nkage,a nd e nergy-savingsche duling, nationalpolicytre nds, strengthe

32、ni ngtrack, active should;to im plementation State-owned assetsmethod,furt herspecificati on businessfinancial manag ement; to perfectrisk tube controlsystem,achieved riskrecognition,and measure,and a ssessment, and re port,a nd controlfee dba ckofcl ose dringmanageme nt,improverisk preventi on capa

33、 city.ofurtherstandardize trading,andstriveto achieve"accordingtola w,sta ndar dizea nd fair." Innovation ofperformance management,toensurethatpotential employees"zer ofly".T ostrengt henperformancemanagement,processcontrol, enhance employeeevaluati onand levelsofeffective commun

34、ication to improveperforma ncemanagement.Tofurtherquantify andrefine em ployee standards.Work, fullplay party,andbranch, a nd members in "five type Enterprise" constr uction int heofcorerole,a nd fighti ng fortress role andpioneermodel role; to continues tostrengthening"four good"

35、;leadershipconstruction, fullplaylevels cadres inenterprise developmenti n the10天。整个施工过程分为以下几个阶段：（1） 施工准备阶段：1天（2） 工作井、接收井施工阶段：既有（3） 顶管设施、设备安装阶段：3 天（4） 管道顶进阶段：4天（5） 工作井顶盖梁板、检查井施工阶段：3 天（6） 收尾阶段：2 天（三） 、主要施工方案3.1 施工顺序顶管施工顺序：旧路破除-顶管工作井、接收井施工-顶管施工-检查井及内管道施工-回填石粉-路面按原样修复。3.2 工作井、接收井施工本工程共设置2 座工作井和3 座接收井，均

36、采用沉井工艺施工。沉井施工顺序：基坑测量放样-基坑开挖-刃脚垫层施工-立井筒内模和支架-钢筋绑扎-立外模和支架-浇捣井筒混凝土-养护及拆模-封砌预留孔-井点安装及降水-凿除垫层、挖土下沉-井底注浆-浇筑水下砂-绑扎底板钢筋、浇捣底板混凝土-绑扎后背钢筋、浇捣后背混凝土。具体施工如下：（ 1）基坑测量放样根据沉井设计图纸和工程地质报告所揭示的地质情况，沉井基坑开挖深度取2 米，沉井刃脚外侧面至基坑边的工作距离取2 米， 基坑边坡采用1:1 。 整平场地后，根据沉井的中心座标定出沉井中心桩、纵横轴线控制桩及基坑开挖边线。施工放样结束后，须经监理工程师复核准确无误后方可开工。（2） 基坑开挖经监理工

37、程师认可的基坑开挖边线确定后，即可进行挖土工序的施工。 挖土采用1m3的单斗挖掘机，并与人工配合操作。基坑底面的浮泥应清除干净并保持平整和干燥，在底部四周设置排水f back bone back bone role ;tofullstrengtheni ngmembers yout h work,fullplay y out h employeesi n company devel opment int heofforce role ;to impr ovei ndependent Commission againstcorr upti onw orklevel, strengtheni ng

38、 onenter prise busine sskey li nkofeffectivene ss monitored. ,A nd m aintainsta bility.Tofurtherstrengthen publicitya nde du cation, improve the overalllegal system.We m ust strengthe nsafety manageme nt,establ ish and improvetheeducation,supervi sion,and eval uationas one ofthetraffic safetymanagem

39、ent mechanism.oconscienti ously sum uptheOlympi csecurity controls, promoting integrate d manageme nttoa higher level, higher standards, ahig herlevelofdevel opme nt.Employees,t oday is lunarcalendaronDe cember 24,t heox Bell i s aboutt oring,atthis time ofyear,wecl early feelthepulse ofthe XX pow e

40、rgenerati on compa ny toflourish,tomore clearlyhearXX powerge neration companies mature andsymmetrybreathing. Recalling pastone a not heracr ossa railing,weareent husia stica nd fullofconfidence.Fut ureWewillconti nue to im prove thecom pany's i nternalcontr olsystem, andsteady improvementin abi

41、litytomanage andcontrol ,optimizebusiness pr oce sses,toensuresm oot h processes, responsibilities in pla ce; t o furtherstre ngthe n internalcontrols,playacontrolpostindepe nde ntoversig htrole ofevaluation com plyingwit hthird-party responsi bility;toactively make use ofinternalaudittoolsdete ctpo

42、te ntialmanageme nt,streamline,stan dardize relatedtransa ctions,stre ngthe ning operati onsi n accor dancewith law.Deepeni ng theinformation managementtoensuref ullcommunicati on "zeroresistance".oconstantlyperfect ERP, and BFS+,and PI,andMIS, a nd SCM, informationsystem based constructio

43、n,full integrationinformationsystem,achieved informationresourcesshared;toexpand Portal systema pplicationofbreadt hand de pth, play information systemonenterprise ofAssistant role; to perfectdaily run maintenance operati on ofrecords,promote problemreasonsanalysi s andsystem handover;tostre ngthe n

44、ing BFS+,and ERP ,a nd SCM,technologyappli cation oftraining , improveem ployee s applicati on information system ofcapacity andlevel.Huma nisticcare to e nsure"zero."Tostrengtheni ng Humanities care,conti nuest ofoster company wind clea r,and gasare,a nd heart Shun ofcult ureatmosphere;st

45、re ngtheninglov e hel pedtra pped,care difficultemployees;carried outstyle a ctivities,rich empl oyeeslife; strengtheni ng healt hand labour protecti on, organizati on career health me dical, control careeragainst;continuesto impleme ntation psychol ogicalw arni ng preventi on system, training emplo

46、yee shealth ofcharacte r,andstable of moodand enter prisingofattitude,created frie ndly fraternityof Humanitiesenvir onment.o strengthe n risk ma nagement,ensurethatthebusinessof"zerorisk".Tostrengt hene dbusi ness plans management,will business busi ness plans covertoalllevel ,ensurethe b

47、usiness can controlincontr ol; to closeconcernfinancial, andcoalelectricli nkage,a nd e nergy-savingscheduling, nationalpolicytre nds, strengtheni ngtrack, a ctive shoul d;to implementati on State-owned assetsmethod,furt herspecificati on businessfinancial manag ement; to perfectrisk tube controlsys

48、tem,achieved riskrecognition,and measure,and a ssessment, a nd report,a nd controlfee dba ckofcl ose dringmanageme nt,im prove ri sk preventi on capa city.ofurtherstandar dize tradi ng,andstri veto achieve"a ccordingtola w,standar dizea nd fair." Innovation ofperformance ma nagement,toe ns

49、urethatpotential employees"zer ofly".T ostrengt henperformancemanagement,processcontrol, e nhance employe eevaluati onand levels ofeffective communication to improveperforma ncemanagement.Tofurtherquantify andrefine employee standards.Work, ful lplay part y,andbranch, and members in "

50、five type Enterprise" constr uction int heofcorerole,a nd fighti ng fortress role a nd pioneermodel role ; to continues t ostrengthening"four good"leadership construction, fullpl aylevels cadre s inenter prise developmenti n the沟与集水井相通，集水井内汇集的雨水及地下水及时用水泵抽除，防止积水而影响刃脚垫层的施工。（3） 刃脚垫层施工刃脚垫

51、层采用砂垫层和混凝土垫层共同受力。a. 砂垫层厚度的确定砂垫层厚度H可采用如下计算公式计算：N/B + 丫 砂HW b 根据计算结果，无论是工作井还是接收井，砂垫层厚度H均为 60 （厘米）。砂垫层采用加水分层夯实的办法施工，夯实工具为平板式振捣器。b. 混凝土垫层厚度的确定混凝土垫层厚度可按下式计算公式计算：h = （G 0/R b ） / 2根据计算结果，混凝土垫层厚度h为 1015厘米（工作井为15厘米，接收井为10厘米）。混凝土垫层表面应用水平仪进行校平，使之表面保持在同一水平面上。（4）立井筒内模和支架由于顶管沉井高度达9 米左右，因此，井身混凝土分三节浇捣，内模同样分三节按装。井筒

52、模板采用组合钢模与局部木模互相搭配，以保证内模的密封性。刃脚踏脚部分的内模采用砖砌结构，宽度与刃脚同宽。井身内模支架采用?48*3.5 钢管支撑。钢管支架必须架设稳固，如有必要，可采用对撑支架，增加内模的稳定性。（5）钢筋绑扎钢筋的表面应洁净，使用前将表面油渍、鳞锈等清理干净；钢筋应平直，无局部弯折，成盘的钢筋均应调直；预制构件中的主钢筋均采用对焊、焊接并按照有关规定抽样送检；钢筋接f back bone back bone role ;tofull strengtheni ngmembers yout h work,fullplay y out h employeesi n company

53、devel opment int heofforce role ;to impr ovei ndependent Commission againstcorr upti onw orklevel, strengtheni ng onenter prise busine sskey li nkofeffectivene ss monitored. ,A nd m aintainsta bility.Tofurther strengthen publicitya nde ducation,improve the overalllegal system.We m ust strengthe nsaf

54、ety management,establ ish and improvetheeducation,supervi sion,and evaluationas one ofthetraffic safetymanagement mechani sm.oconscienti ously sum uptheOlympi csecurity controls, prom oting integrated manageme nttoa higher level, higher standards, ahig herlevel ofdevel opme nt.Empl oyees,t oday is l

55、unarcalendaronDe cember 24,t heox Bell i s abouttoring,atthis time ofyear,wecl early feelthepulse ofthe XX pow ergenerati on compa ny toflourish,tomore clearlyhearXX powergeneration companies mature andsymmetrybreathing. Recalling pastone a not heracr ossa railing,weare ent husia stica nd fullofconf

56、idence.Fut ureWewillcontinue to improve thecompany's internalcontr olsystem, andsteady improvementi n abilitytomanage andcontrol ,optimizebusiness pr ocesses,toensuresm oot h processes, responsibilities in pla ce; t o furtherstre ngthe n internalcontrols,playacontrolpostindepe nde ntoversig htro

57、le ofevaluation complyingwit hthird-party responsibility;toactively make use ofinternalaudittoolsdete ctpote ntialmanageme nt,streamline ,standardizerelate dtransa ctions,stre ngthe ning operationsi n accordancewith law. Deepeni ng theinformation managementtoensuref ullcommunicati on "zeroresis

58、tance".oconstantlyperfect ERP, and BFS+,and PI,and MIS, a nd SCM, informationsystem based con structi on,full integrationinformationsystem,achieved informationresourcesshared;toexpand Portal systema pplicationof breadthand depth,play information systemonenterprise ofAssistant role; to perfectdaily run maintenance operati on ofrecords,prom ote problemreasonsanalysi s andsystem handover;tostre ngthe ning BFS+,and ERP,a nd SCM,technologyappli cation oftraining , improveem ployee