井架提升架拆除

1、CSPC NANHAI PETROCHEMICALS PROJCECTCSPC南海石化項目STACK LIFT FORMWORK EQUIPMENT REMOV AL井架、提升架拆除（變徑）WORK INSTRUCTION : WI-8710-8100-0092SEPCO Electric Power Con structi on Corporati on山東電力基本建設(shè)總公司REV版次DATE日期REASON FOR ISSUE修訂原因BY編制CHK 'D審核REVIEW審查APPR批準(zhǔn)A1.Apr.2004Issued for ApprovalZhao.KLiu.JHXiao.TP

2、She ng.XGB20.Apr.2004Issued for ApprovalZhao.KLiu.JHXiao.TPShe ng.XG升版記錄Revisi on in formati on版次Rev章節(jié)號Sectio n No.主要修改內(nèi)容Description of main changesB所有章節(jié)all secti ons增加了英文翻譯add the tran slati on目錄Contents1. 目的 Purposes2. 范圍 Scope3. 職責(zé) Responsibilities4. 參考文件 References5. 計量器具、工具、機(jī)械 Measuring instrum

3、ent, tools, machinery6. 勞動力組織 Labor force7. 施工工序和施工方法 Construction procedure and plans8. 附件 Attachments1.0 范圍 Scope本程序適用于 CSPC南海石化項目煙囪井架、提升架拆除（變徑）施工。This procedure applies to the construction of disassembling the chimney derrick and the hoist tower （Radius change） for CSPC Nanhai petrochemicals proj

4、ect.2.0 目的 Purposes規(guī)定SEPCO在CSPC南海石化項目中煙囪井架、提升架拆除（變徑）施工執(zhí)行標(biāo)準(zhǔn)，以有效地控制煙 囪井架、提升架拆除（變徑）施工過程及安全保障。It stipulates impleme ntati on sta ndard on the con struct ion of disassembli ng the chi mneyderrick and the hoist tower( Radius change ) for SEPCO1 in CSPC Nanhai petrochemicals projectin order to effectively

5、control the construction process and the safety guarantee.職責(zé) Responsibilities技術(shù)負(fù)責(zé)人王德勝、林再川Engineer leadersWang Desheng , Lin Zaichuan施工負(fù)責(zé)人羅劍章Construction leaderLuo Jianzhang測量張勝利SurveyorZhang Shengli質(zhì)檢員高 見、易 林InspectorsGao Jian Yi Lin技術(shù)員趙克TechnicianZhao Ke施工員卜現(xiàn)剛、杜 海、黃居健ConstructorsBu Xiangang, Huang

6、Jujian, Du Hai安全員陳文賓、葉勝木SafetymenChen Wenbin ,Ye Shengmu3.1 SEPCO1 建筑隊負(fù)責(zé)對煙囪井架、提升架拆除（變徑）施工的全過程進(jìn)行管理。Building team in SEPCO1 is responsible for managing the whole progress of the constructionof disassembling the chimney derrick and the hoist tower( Radius change ) .3.2 施工四分隊負(fù)責(zé)制定安全施工措施，并予以執(zhí)行。The No.4 Un

7、it is responsible for establishing the safety construction measures and carrying it out.3.3 SEPCO施工部、資產(chǎn)部對煙囪井架、提升架拆除(變徑)施工的施工措施進(jìn)行審核，并在作業(yè)過程中進(jìn)行監(jiān)督指導(dǎo)。The construction department and the assets department in SEPCO1are responsible for auditing the construction measures on disassembling the chimney derrick

8、and the hoist tower（ Radiuschange ） , and also supervising and directing it in course of working.3.4 SEPC01 HSE部對煙囪井架、提升架拆除（變徑）施工的安全措施進(jìn)行審核，并負(fù)責(zé)實施現(xiàn)場監(jiān)督。HSE department in SEPCO1 is responsible for auditing the safety measures on disassemblingthe chimney derrick and the hoist tower （Radius change）, and a

9、lso for carrying out the site supervision.3.5 SEPC01 管理人員及施工單位的負(fù)責(zé)人應(yīng)堅守崗位，發(fā)現(xiàn)異常問題，立即報告或采取救援措施。The management personnel and the principal in construction unit for SEPC01 should stick toa post, and report at once or take succor measures if something exceptional happened.4.0 參考文件 References4.1 井架、提升架設(shè)計資料

10、, 由四川省第四建筑工程公司設(shè)計。The design information about the derrick and the hoist tower is provided by No.4 Construction Project Company , Sichuan province.5.0 計量器具、工具及機(jī)械 Measuring instrument, tools and machinery工具 : 板手、撬棍、氣割槍、乙炔瓶、氧氣瓶、吊繩、尼龍繩;Tools: Wrench, crowbar, gas cutting apparatus, acetylene cylinder, o

11、xygen cylinder, climbing rope, nylon wire;機(jī)械：電焊機(jī)、卷揚(yáng)機(jī)、絞車扒桿 ;Machinery: Electric welding machine, hoist, winch lift rod;6.0 勞動力組織 Labor force技術(shù)員 2人，施工員 2人， 起重工 6人，電工 1 人，機(jī)修工 1人,壯工 4人。2 technicians,2 constructors, 6 cranemen, 1 electrician, 1 machine maintenance man, 4 laborers.7.0 施工工序和施工方法 Constructi

12、on procedure and plans7.1 施工工序 Construction procedure7.1.1 井架、提升（裝置）架拆除工序 Working procedure for disassembling the derrick and hoist （device） tower內(nèi)模板支撐、撐桿及內(nèi)外鋼箍拆除t內(nèi)外模板拆除t圍檁拆除t吊架腳手板及吊架拆除t將平臺降落在煙囪頂面，由煙囪筒體頂部和井架同時受力支撐平臺t安裝輔助扒桿（在井架上）7在操作平臺上安裝臨時腳手架（內(nèi)平臺）t由輔助扒桿拆除回轉(zhuǎn)半徑內(nèi)的輻射梁t由主扒桿拆除另一半輻射梁t拆除扒桿t 安裝煙囪頂鑄鐵蓋帽和避雷針T拆除和

13、安裝臨時腳手架（位置變化）至套架圈梁T提升機(jī)及套架下降T拆 除附墻支撐并封堵耐酸磚洞T逐節(jié)拆除井架和附墻支撐及封堵磚洞（循環(huán)拆除降至地面）7拆除套架等和 剩余井架T清理拆除件、運輸退場。Disassemble the inner formwork support, stay bar and the in side and outside steel hoop7removal of the inside and outside formwork7 removal of encircling purlin7 remove thescaffolding board of hanging bracke

14、t and the hanging bracket 7 landing the platform on the top face of chimney , support the platform through the stress of top of chimney barrel and the derrick at the same time 7 installing the auxiliary lift rod ( on the derrick )7 installing thetemporary scaffolding on the operating platform (inner

15、 platform )7 remove the radius beam inthe rotation radius by the auxiliary lift rod7 remove another half of radius beam by mainlift rod 7 remove the lift rod7 installing the cast-iron cap and lightning rod on top ofchimney 7 remove and install the temporary scaffolding (change position) to the circl

16、ing beam of framework 7 descend the elevator and the framework7 remove the attached wall support andseal the hole of acid resisting brick7 remove the derrick and attached wall support sectionby section as well as sealing the hole of brick (remove circularly till to the ground ) 7 remove the framewor

17、k and so on and the rest derrick7 clean up the removal element and exit from thefield through transportation.7.1.2 操作平臺變徑工序 Radius change procedure of operating platform平臺輻射梁拉桿移至變徑范圍以內(nèi)7在直徑10m處用鋼筋箍卡扣安裝槽鋼環(huán)梁(帶欄桿插孔)7將平臺外圍欄桿(含鋼絲網(wǎng)和密目網(wǎng))拆除移至變徑處重新安裝欄桿7拆除變徑范圍內(nèi)的平臺鋪板和外端環(huán)梁 7割除變徑長度的輻射梁7安裝欄桿鋼絲網(wǎng)和安全網(wǎng)。Move the pull r

18、od of radius beam of platformto within the range of radius change 7 installthe channel steel beam by the rebar hoop buckle (including the guardrail jack ) at 10m of diameter 7 remove the peripheral rail of platform (including steel wire mesh and thick net ) and move it to the location of radius chan

19、ge and then to reinstall the rail7remove the platform plankwhich is within the range of radius change and the out end ring beam7cut off the radius beamwhich is the length of radius change 7 install the steel wire mesh of rail and the safety net.7.2 施工方法 Construction plans7.2.1 在煙囪內(nèi)襯、外部爬梯、信號平臺、休息平臺、航

20、標(biāo)涂料施工完畢后進(jìn)行(提升架構(gòu)造見圖1-1 )提升(裝置)架拆除。Remove the hoist (device) tower after completing the construction of chimney inner liner,outer climbing ladder, signal platform, rest platform and navigation marker coating (refer to the drawing 1-1 on the hoist tower structure).7.2.1.1 模板拆除 Formwork removal施工煙囪筒體到頂后

21、， 即可拆除全部內(nèi)外模板。 由于模板采用的是組合定型鋼模板， 其單塊重量輕 (僅 5.4kg )，易于拆除，故以人工分塊拆除，操作在內(nèi)外吊架上層進(jìn)行。拆除時先用小鐵錘敲松卡扣，然后拿 住鋼模板傳至操作平臺，再用吊藍(lán)運至地面。拆除前 , 外吊架兜底網(wǎng)應(yīng)拉緊箍在筒壁上 ,直至平臺外鋼圈拆 除前?？塾盟芰贤?、袋集中后利用吊籠運至地面。Remove all the inside and outside formwork after the chimney barrel reaching the top. It is easy to remove the formwork due to adoptin

22、g the assembled retaining formwork, and the weight of the single piece of formwork is light (only 5.4kg). So remove the formwork piece by piece through manual work on the upper layer of the inside and outside hanging bracket. Make the buckle loose through striking with small hammer prior to remove,

23、and then hold the steel formwork to pass it to the operating platform, then transport it to the ground with basket. The safety net of outer suspension bracket should be tightened on the chimney wall before removing till the outer steel ring of platform is removed before. Collect buckles and put them

24、 into plastic bucket or bag, and then transport them to the ground with suspension cage.7.2.1.2 吊架拆除 Removal of hanging bracket內(nèi)外吊架均系由扁鋼-50 X 5組成，其構(gòu)造如圖3-1。拆除時先將吊架上端安全網(wǎng)移至輻射梁上，把吊 架全部罩住，再從筒壁一點開始 ,沿環(huán)向依次拆除吊架下層腳手板和吊架扁鐵架 , 上層腳手板和扁鐵架、三 角架,絲桿可鋪搭臨時腳手板作為拆除吊架的站人操作點，拆除的腳手板、扁鐵架、三角架均運到操作 平臺，再用吊繩捆綁后用扒桿吊運至地面。The in

25、side and outside hanging bracket are all made up of the flat steel一 50X 5 , see thedrawing 3-1 about its structure. Firstly move the safety net on the upper end of hanging bracket onto the radius beam prior to remove, cover the hanging bracket completely, then start from a point of chimney wall, rem

26、ove the underlayer scaffolding board and flat iron bracket of suspension bracket, upper layer scaffolding board and flat iron bracket, triangular bracket in turn along the ring direction, set up temporary scaffolding board with feed screw to be used for operation point of suspension bracket, scaffol

27、ding board , flat iron bracket ,triangular bracket which have been removed are transported onto the operation platform ,and then lift them to the ground with lift rod after binding with climbing rope.7.2.1.3 支模門架拆除 Removal of support formwork portal7 / 13支模門架構(gòu)造如圖 3-2 所示，拆除時先站在門架上拆除絲桿，然后在操作平臺上用人力將門架從

28、輻射 梁的槽鋼中抽出，用扒桿吊運至地面，鍋爐煙囪的輔助門架拆除方法亦相同。Shown in drawing 3-2 on the structure of support formwork portal, firstly stand on the portal to remove the feed screw, then to draw out the portal from the channel steel of the radius beam by manpower on the operating platform, lift it to the ground with lift ro

29、d. The method of removing the auxiliary portal for boiler stack is the same as that.7.2.1.4 安裝臨時（操作）輔助平臺及輔助扒桿，拆除操作平臺外欄桿. 外鋼圈Install the temporary （operating） auxiliary platform and lift rod, and remove the outsiderail and outside steel ring of platform 將操作平臺降至煙囪頂部，支撐在有墊木的筒壁頂部，在筒頂平臺下方井架上，安裝供拆除使用的臨 時（

30、操作）輔助平臺（如圖 3-3 所示），用鋼管腳手架，以井字形夾在井架四周，并支承在安裝于井架主 肢的夾具上，此時即可依次拆除外欄桿上的安全網(wǎng)、欄桿、外鋼圈，欄桿拆除后應(yīng)立即拉設(shè)臨時水平安全 繩,然后用吊繩將外吊架安全網(wǎng)底部箍繩提至操作平臺，拆除外吊架安全網(wǎng)。在井架扒桿的對角上安裝一 根輔助扒桿（用于拆除輻射梁） ；最后由外向內(nèi)依次拆除操作平臺上的腳手板并吊運至地面。Drop the operating platform down to the top of chimney, support it on top of the chimney wall which has crosser, ins

31、tall the temporary （operation） auxiliary platform （shown in drawing 3-3） which is used for removing on the derrick below the platform of the top of chimney, then clamp it around the derrick in the form of well type by steel tube scaffolding, supporting on the clamping tools installed on the principa

32、l branch, here, the safety net of the outer rail, rail and outer steel ring can be removed in turn, draw the temporary horizontal safety rope at once after removing the rail, then lift the hoop rope which is at the bottom of safety net of outer suspension bracket to the operating platform with the c

33、limbing rope, remove the safety net of outer suspension bracket. Install a piece of auxiliary lift rod （used for removing radius beam ） on the cross of the lift rod of derrick; finally remove the scaffolding board of operating platform in turn from outside to inside and then lift them to the ground.

34、7.2.1.5 輻射梁拆除 Removal of radius beam輻射梁單根最長6.6m，重210kg，拆除方法如圖3-4所示。先用吊繩將要拆除的輻射梁栓住兩（吊） 點并掛于扒桿上，使扒桿吊繩處于接近拉直位置，再由操作人員站在臨時輔助平臺上拆除輻射梁與外套架 的連結(jié)螺栓，然后吊起輻射梁，調(diào)整扒桿（與水平）夾角為最小，使吊件離開筒體并繞過已安裝的煙囪信 號平臺等障礙物，若所吊構(gòu)件與信號平臺、休息平臺相碰時 ,應(yīng)派人從外爬梯下到平臺上將構(gòu)件推離平臺 , 再慢慢降落至地面，栓掛輻射梁吊點時 , 應(yīng)先在輻射梁上鋪設(shè)臨時腳手板，栓好吊點后拆除。當(dāng)拆至最后8 / 13兩根輻射梁時，應(yīng)同時分別栓好兩根

35、梁 ,并先后拆除和運到地面 , 最后拆除輔助扒桿。下到平臺的操作人員 必須佩掛安全帶和防墜器或安全繩。防墜器或安全繩應(yīng)掛于井架上。The longest single piece of radius beam is 6.6m, and its weight is 210kg, the removal method is shown in drawing 3-4.Firstly fasten two points of radius beam which is to be removed with climbing rope and hang it up the lift rod, make t

36、he climbing rope of lift rod is close to the straight position, then ask the operators to stand on the temporary auxiliary platform to remove the radius beam and the connecting bolt of outer frame, then lift up the radiation beam, make the inclination of lift rod ( with the level) least through adju

37、sting it, so as to make the lifted component be off the chimney body and round the installed chimney signal platform and such obstacles, send person to go down the platform from the outer climbing ladder and push the component away the platform and then land it to the ground slowly if the lifted com

38、ponent hit the signal platform and rest platform each other, Firstly lay the temporary scaffolding board on the radius beam prior to fasten the lifting point and then, remove the scaffolding board after fastening the lifting point. Fasten two pieces of beam respectively at the same time when removin

39、g the last two pieces of radiation beam, and remove them and transport them to the ground successively, finally remove the auxiliary lift rod. The operator who goes down the platform must gird on the safety belt and falling protection machine or safety rope, the falling protection machine or safety

40、rope should be hung up the derrick.7.2.1.6 扒桿拆除 Removal of lift rod扒桿拆除方法見圖 3-5 。先在套架底座上搭設(shè)臨時平臺，用調(diào)臂繩將扒桿收到靠近套架位置，并用鋼 絲繩臨時固定在套架上， 拆除調(diào)臂繩 , 換成吊繩，(扒起吊繩) 將掛鉤套住扒桿的保險繩吊環(huán)， 略收縮吊繩， 拆除扒桿底座的轉(zhuǎn)軸，使扒桿離開底座自由懸吊，用卷揚(yáng)機(jī)降落吊繩，使扒桿在煙囪筒體內(nèi)下落到地面， 此時可利用臨時平臺完成煙囪鑄鐵頂蓋和避雷針的安裝。The removal method of lift rod is shown in drawing 3-5 。 Fi

41、rstly set up the temporary platform on the frame plinth, pull the lift rod back to the position where it is close to the frame through the adjusting arm rope, and fix it up on the frame temporarily with steel wire rope, remove the rope which is used for adjusting the length of rod, climbing rope can

42、 be instead,( lift up theclimbing rope ) make the pothook hitch the hoisting ring of life rope, constringe the climbing rope a little , remove the rotary axes of plinth of lift rod in order to make the lift rod be off the plinth to suspend freely, descend the climbing rope with hoist so as to make t

43、he lift rod fall down the ground inside the chimney body, here, the installation of cast-iron top coverof chimney and lightning rod can be completed through employing the temporary platform.7.2.1.7 井架及附墻支撐拆除 Remove the derrick and the attached wall support拆除方法見圖 3-6 。利用提升機(jī)或液壓缸與上升相反向的轉(zhuǎn)（移）動，分節(jié)（每節(jié) 1.5m

44、 高）拆除井字 架，在套架上部掛滑輪，用卷揚(yáng)機(jī)吊鋼絲繩，將井架件運到地面，在套架下端搭設(shè)臨時平臺，當(dāng)套架降至 接近附墻支撐時，將吊鉤繩套住附墻支撐靠井架一端，拆除該端聯(lián)結(jié)點，放松吊繩，讓支撐桿沿筒壁端另 一鉸接點旋轉(zhuǎn)，并降至該鉸接點下，用吊繩固定在臨時平臺上，然后下降臨時平臺至該段鉸接點時，即拆 除該支撐。用同樣方法拆除同高度四根附墻支撐，拆除支撐的同時，對筒壁孔眼進(jìn)行填補(bǔ)、修整。直至拆 除全部井架節(jié)及附墻支撐，降至地面，最后拆除套架、提升機(jī)或液壓缸，清理桿件退場。The removal method is shown in drawing 3-6.Remove the well type b

45、racket section by section（1.5m high for each section）, hang the pulley on the upside of frame, lift the steel wire ropewith hoist, deliver the derrick component to the ground, set up the temporary platform belowthe end of frame , hitch one end of derrick for attached wall support with lifting hook r

46、opewhen the frame is close to the attached wall support, remove the connecting point of the end ,loose the climbing rope, make the strut bar rotate along another hinged joint of the end of chimney wall, and descend it below of the hinged joint, fix it up on the temporary platform with climbing rope,

47、 then descend the temporary platform till to the hinged joint of the segment, here, remove the support. Removefour pieces of attached wall support at the same height with the same method, fill and finish the eyelet of chimney wall at the same time of removing support. Remove all the derrick sections

48、 and attached wall support, fall down the ground, finally remove the frame, lifter or hydraulic cylinder, clean up the member of framework and make it exit from the field.7.2.2 鍋爐煙囪提升架操作平臺變徑Changing radius of operation platform of hoist tower for boiler stack7.2.2.1 變徑位置及范圍 Changing radius position

49、and range鍋爐煙囪提升架操作平臺直徑為 14m筒體底部外徑為12.46m。當(dāng)施工到49.85m標(biāo)高（高度為43m） 時，筒體外徑為8.21m，筒體直徑已減小4.25m。為減少操作平臺重量（自重 +活荷載+風(fēng)荷載），將操作平 臺減小4m 平臺直徑變?yōu)?10m。The diameter of operating platform of hoist tower for boiler stack is 14m, the externaldiameter of bottom of chimney body is 12.46m. The external diameter of chimney b

50、ody is 8.21mwhen it is at an elevation of 49.85m （the height is 43m）, the diameter of chimney body has beendecreased in by 4.25m. Decrease the operating platform in by 4min order to decrease the platform weight （sole weight + active load + wind load）, the diameter of platform is changed to 10m.7.2.2

51、.2 移動拉桿和安裝環(huán)梁 Move the pull rod and install the ring girder用6"鋼絲繩臨時栓在套架頂端和輻射梁上，將輻射梁吊拉桿逐根移至10m直徑以內(nèi)，在直徑10m處，用U型鋼筋箍卡扣安裝槽鋼（18環(huán)梁。Fasten the 6" steel wire rope on the top end of frame and the radius beam temporarily, movethe lifting climbing pole of radius beam piece by piece to be within the dia

52、meter of 10m, install the （ 18ring girder of channel steel with U type rebar hoop buckle on locationof the diameterof 10m.7.2.2.3 拆安平臺欄桿 Remove and install the rail of platform將外端安全網(wǎng)、鋼絲網(wǎng)、欄桿依次拆除，當(dāng)拆除欄桿立柱時，應(yīng)留34根用于拉設(shè)水平安全繩，待最后拆除。外端欄桿拆除后，移至10m環(huán)梁處重新安裝欄桿，然后拆除外端環(huán)梁和變徑范圍內(nèi)的平臺腳手板， 松脫平臺外端下口水平兜網(wǎng)。拆除外端環(huán)梁時應(yīng)將安全帶掛于拉桿上，

53、 且必須掛防墜器。Remove the safety net at the external end， steel wire mesh and rail in turn， remain 3 4pieces of pole to be used for pulling the horizontal safety rope when removing vertical pole of rail ， and remove them at last. After removing the rail at external end， move it to the location of ring gir

54、der of 10mand then install the rail over again， then remove the ring girder at external end and the platform scaffolding board within the change radius， loose the horizontal safety net under the outer end of platform. Hang the safety belt upon the pull rod when removing the ring beam at the outer en

55、d and， hang the falling protection device.7.2.2.4 割短平臺輻射梁 Cut the radius beam of platform short割短平臺輻射梁的操作方法見圖4-2。單根2m長度槽鋼重量為25kg,割短時，先用8#鐵絲套在槽鋼中間的預(yù)留孔眼中，扎成套圈 ，用 ?20 棕繩連結(jié)，另一端栓在井架上，在新安裝欄桿處安設(shè)三角架鋼管支 撐棕繩，高度為1.8m，然后操作人員在新安裝欄桿內(nèi)向外割切輻射梁。當(dāng)切割至構(gòu)件下口3-5mm時，停止切割，待切口冷卻后由操作人員拉動棕繩 ， （在兩個吊點中拉動外吊點 ， 內(nèi)吊點則將繩收緊稍松 ， 防斷后沖 擊力

56、）反復(fù)彎折切割口至斷開，再由人力提升到平臺，捆綁后用扒桿吊運到地面。The operation method of cutting radius beam of platform short is shown in 4-2。 The weightof single piece of 2m channel steel is 25kg， firstly cover the 8# steel wire into the middlepre-set eyelet of channel steel， make it form the ferrule， connect it with ?20 coir r

57、ope ， fastenthe other end on the derrick， set the tripod steel tube support coir rope on the location of newly installed rail ， the height is 1.8m， and then the operator cut the radius beam forth inside the newly installed rail. Stop cutting when reaches 3-5mm of underside the component， pull the co

58、ir rope after cooling the notch， （pull the outer lifting point between two lifting points，frap the rope of the inner lifting point but make it a little loose in order to protect the impact force after breaking) bend the notch again and again till it is cut, then lift it to the platform by manpower, deliver it to the ground with lift rod after binding.7.2.2.5 安裝欄桿鋼絲網(wǎng)、安全密網(wǎng) Install the steel