生料库滑模施工方案E.docx

Method statement for raw material silo
I . Project description
1. 0 Raw materialsilo RCC silooutsidediameter is © 23.4x 72m.A cone startsit 8.693. Ring foundation is adopted. Concrete structure forthe top.
II. References
1.0 Drawings of raw meal homogenizing silo & kiln feeding system
2.0 The construction organization and design
3.0 The relative construction codes and regulations
III. Main construction method
1.0 Preparations
1.1 Equipment: Mobilization and commissioning of tower crane, sliding devices, welder, el ensure the slip form works in the normal way.
1.2 Materials: Work out the plan of steel and carry out the f abrication work, prepare concrete and other materials.
1.3 Job site: Smooth and straight so as to ensure the convenience of material transportat
1.4 Adequate manpowers.
2.0 Silo wall slip form construction
2.1Slip form construction
a. Concrete
The concrete adopted f or this job wi11 be ready mixed concrete. The following data sha in the plan sheet: pouring and vibrating time, pouring section, strength requirement, the quant i ty (cubic metensended to be poured and planned timouoing. When slipf orm starts, the concrete shall be continuous, and the masons follows to vibarte. The conc put into formworks and vibratedat the same time from both directionss,o as to avoid the occurrenceof slotsor crackscaused by the alreadyhardened concretewhen only work to one direction. The proper slump requirement for slipform is 90-140mm.
Concrete transportatioithe concretein the self-fabricattsijpcarwillbe transportecby the headframe to the sliding platform, and supplied to place of pouring by the tipcart. VerticatransportatioiAfter calculatioit,he capacityof the tower crane meets the actual transportatiotemand. At the same time vertical transportation!:* the concreteshould meet the demand fordifferensection,Therefore,threeheadframe, which could goes up with the platform, is needed f or s ilo wall sliding up, and self-fabricated tipcart, actually th lorry is 0.18 cubic meters.
Concrete pouring:when the silowall is slidinup, put the concretefrom the tipcar onto the platform between two slip form supports, masons shovel all the concrete on the platform f ormwork, masons following to vibrate the concrete. The concrete shall be cont inuously into formworks and vibrated at the same time to both directions, so as to avoid the occ slots or cracks caused by the already hardened concrete when only work inone direction. Afterput the concreteintothe formwork, vibrateitin time with poker vibratorThe working principle quick insert and slowly pul“outvibrator after and'thvrbrating in par'allel For each pointthe vibratingime is20s-30s, theibratiocould not betopped onlywhen the concrete surface does not go down obviously, and there is no air bubble comes out, and t occurs on the concrete surface. When vibrating the upper layer, the insert to the lower not more than 5cm and connectionjoints)etween these two layersshallbe eliminatedNo vibration and over vibration is forbidden.
When concrete is delivered, slump should be checked. The proper slump for slip form con is 90-140mm.
Records must be taken and kept for the strengthtest,and mark out the pouring sectionand strengthetc.The concreteshal be crushedat 7 and 28 days. When resultare satisfactortjhe documents shall be kept in the archives. As for the disqualified cubes, the reasons have out and actions for that batch have to be taken.
b. Reinforcement
The vertical rebars lapping shall staggered at 1/4, and the overlapped area of ring hori shall be no less than 50d. when the overlapping joints staggered distance is longer tha one rebar could be overlapped in the same area every four pieces. The rebars above the of the s ilo wall shall be bond when sliding up, the binding works shall be done with 1 grouting one af ter the other.
The concrete cover and position of the rebars are ensured to be correct by the clips in horizontal beam of the slip form supports.
c. sliding-up
Preliminary sliding-up: when begin with silo wall grouting, the concrete shall be grout into the formwork of 12mm on both directions. Try to slide up the wall after 4 or 5 h to 4 courses.Test the concrete out of the formwork with hand, when there is only a slight fingerpriiatid the concretedoes not stickto the hand, then the normal slidinup procedure could be carried out after a short break.
Aftercompletionof the soleplateonstructioit,he above-mentioned method shallbe takenfor the grouting of upper silowall.
Attention:
When startconstructingilowallabove the soleplatepleasepay attentioito see whether the concretestrengthf the soleplatmeet sliding-upequirementbecause the sliding-upillstart immediatelyafterfinishsoleplat宙routingworks. If the concrete isnot strong enough, the sliding-up speed shall be decreased.
Normal slidingp: each time slidingp 30cm, the concreteshallbe grouted circularon both directions. It shall be lifted at an1.i5n-t2e.r0vahlouorfasn,d when the temperature is highi,t could be lifted 1-2 courses additionally.
Whenever sliding up, correction works has to be done to avoid excursion and torsion, i deviationof the plummets for excursionand torsioncontrollingxceed 15mm (generallyfany deviation occurs), correction works shall be done.
Platform excursion: the cenerollinf platformnd formworks are the key poinforcenter controlling. Before sliding up the formworks, the whole platform and the level of the j checked and corrected by water level. The support shall be checked by water level as w be checked every other grouting.
Deviatiomf the platformshalbe correctedby inclininlif the jackon the deviatedsideto a proper height and sliding up when the platform is inclined (no more than 1%), af ter th has been corrected, continue with normal sliding procedure.
Platform torsion: torsion of the platform shall be corrected by dragging, 8 points sha] evenly along the periphery and dragged by manual hoists to the opposite direction of t the torsion will be corrected when lift up the formwork.
Attention:
The poles must be reinforced when lifting up the platform without concrete.
Stop sliding: when the sliding up must be stopped due to construction necessity or spec shall be lifted up 1-2 courses at an interval of 0.5-1.0 hour, until the formwork and c( stick together (around 4 hours), and it shall be lifted up 1 course the next day.
Special record sheets have been taken for this job for technical controlling of every information see attachment.
d. Embedded parts and openings: on the sliding platform, nameplates shall be installed embedded parts and openings and marked the code of embedded partasn,d seilzev,ation data, and one person shall specially manage these nameplates.
Attention:
During constructiothereare much more iron partsand openings, therefore,the responsible person of the platform shall review and check the drawing and construction markings ca avoid any mistake.
e. Silcwallplasteringmsideand outsidewall shallbe troweledwith cement and brushed with curing agent during sliding up.
2.4 Items shall pay attention to
2.4.1 Silo wall sliding up is very strict in technolsopgeycialntdy, and therefore, it must be carefully arranged and effectively coordinated.
Allthe items shallbe managed speciallbyy differenpterson with clearlydefinedresponsibility;
everybody must work full-time without part-time job.
According to the management system, the persons who in charged above and below the plat are under the leadership of the chief management.
The persons who in charged material supply, tests, concrete grading and dosing, concre- concretehorizontatransportrebarclassificat aoud liftingpcommodation and medicineare under leadership of the one who is responsible for the items below the platform.
The persons who in charged concreteverticalransport,ebarbinding,concrete groutingand vibratingplatform leveling^orrectionprolongingof the supports, height control,surface treatment of the concrete after taking away the formworks, installation of embedded part section are under the leadership of the person who is responsible for the items above th
2.4.2 When slide up the formwork, temporary access must be available for the workers to g down.
2.4.3During slipform constructionyhenever slidingp, correctioiworks has to be done for excursion and torsion, twice vertical correction has to be done per shift, 4 symmetrical p selected for each section to measure the perpendicularity, and compared with the deviation for excursion and torsion.
2.4.4 The allowed tolerances in slip form construction
Vertical tolerance:
Total height: 0.3% of the total height, no more than +/- 80mm
Per 7.5m in height: +/- 50 mm
Silo diameter tolerance:
0.1% of the diameter of silo wall section, no more than +/- 25 mm
Silo wall thickness
No thicker than regulated thickness: 10mm
No thinner than regulated thickness: 5 mm.
The slip f orm system shall be dismantled 2 days af ter the concrete grout ing has been c The working principleudssmantlementf ter assemb'lethe operators mus t comply with all the instructions, well fasten the safety belt, dismantlement must be done in right sequent use of tower crane.
IV. Technology and Safety
1. 0 Slip form mainly works high above the ground, and very dangTheusfore, the staff works for thisjob must enhance theirknowledge and improve theirsafetyconsciousnessind conception to accomplish the job successfully.
2.0 When enter into the jobsite, please comply with all of the safety specifications and It is forbidden to work on site after drinking, or with slippers, hard-sole shoes. It is fight and play on site.
3.0 After checked by doctor, the person who is not suitable to work above the ground is to go with the platform. The staff who works above the ground is forbidden to throw an the ground, if it is necessary to transfer something, it must be transferred through h tower crane.When transfesomething, the operatormust be within thplatformhandrailand well fasten the safety belt.
4.0 The platformmust be assembled with rigiditand stabilityhe operatorsmust check the stabiliand correctthe platformat any time. Allthe persons worked on platformmust closely cooperate with each other, and all the material and tools must put evenly to avoid the in the platform.Whenever push the trolley,onvey materialor tools,or dump the concrete,allof these must be done carefully and slightly.
5.0 Actionsmust be taken to ensure and improve safetyworks, safetyproductionplateand nameplate must be erected in the striking places. During slip form construction above t safety area must be markdeedfinitelby white linetso prevent theentering otfhe persons not belongs to the working group. The jobsite must be temporarily fenced and installed with lighting for nighttime.
6.0 Strengthenthe connectionof earthingof mechanical and electricaequipments and the lightning device and safety limit devices of construction machines (tower crane, headfra 7.0 The machine operators (includingibratinpersonnel) and specialworkers shallattend relative trainings, and works with certificates. Non-operator could not touchnthe mech electrical equipments.
8.0 Strengthen the lighting of works during night. It is forbidden to connect the wire Comply with the power regulations, the telegraph pole shall be wooden, it could not be everywhere and hung on the headframe or contact with steel pipes.
9.0 In order to prevent somebody fall down from high altitude, the four openings and tl nearby shall be equipped with protection advices. The slip form platform, headframe pla scaffold, chute access shall be vertically and horizontally complete-closed with safety 10.0 The key poinbf safetyworks on siteis fiveprevention's more attentioishalbe paid to everybody, and the responsiblpersonnel.Fullyplay the functionsof the three treasures'bf constructiorworks: helmet, safety belt and safety net. Whenever explain the technical requirements and design intension, the safety works shall be mentioned as well.
11.0 Strictly carry out the fireproofing system, fire extinguisher must be available on 12.0 The constructioworks shallbe stopped when there iswind strongerthan grade 6, or rainstormand snowstorm. Beforerestarlthe work, the jobsitemst be cleaned and anti-slide actions must be taken.
13.0 As for the items not mentioned here, shall follow the information from the relative
下面为附送毕业论文致谢词范文！不需要的可以编辑删除！谢谢！
毕业论文致谢词
我的毕业论文是在韦xx老师的精心指导和大力支持下完成的，他渊博的知识开阔的 视野给了我深深的启迪，论文凝聚着他的血汗，他以严谨的治学态度和敬业精神深 深的感染了我对我的工作学习产生了深渊的影响，在此我向他表示衷心的谢意
这三年来感谢广西工业职业技术学院汽车工程系的老师对我专业思维及专业技能的 培养，他们在学业上的心细指导为我工作和继续学习打下了良好的基础，在这里我 要像诸位老师深深的鞠上一躬!特别是我的班主任吴廷川老师，虽然他不是我的专业 老师，但是在这三年来，在思想以及生活上给予我鼓舞与关怀让我走出了很多失落 的时候，“明师之恩，诚为过于天地，重于父母”，对吴老师的感激之情我无法用语 言来表达，在此向吴老师致以最崇高的敬意和最真诚的谢意！
感谢这三年来我的朋友以及汽修0932班的四十多位同学对我的学习，生活和工作的 支持和关心。三年来我们真心相待，和睦共处，不是兄弟胜是兄弟!正是一路上有你 们我的求学生涯才不会感到孤独，马上就要各奔前程了，希望（，请保留此标记。） 你们有好的前途，失败不要灰心，你的背后还有汽修0932班这个大家庭！
最后我要感谢我的父母，你们生我养我，纵有三世也无法回报你们，要离开你们出 8
去工作了，我在心里默默的祝福你们平安健康，我不会让你们失望的，会好好工作 回报社会的。
致谢词2
在本次论文设计过程中，感谢我的学校，给了我学习的机会，在学习中，老师从选 题指导、论文框架到细节修改，都给予了细致的指导，提出了很多宝贵的意见与建 议，老师以其严谨求实的治学态度、高度的敬业精神、兢兢业业、孜孜以求的工作 作风和大胆创新的进取精神对我产生重要影响。他渊博的知识、开阔的视野和敏锐 的思维给了我深深的启迪。这篇论文是在老师的精心指导和大力支持下才完成的
感谢所有授我以业的老师，没有这些年知识的积淀，我没有这么大的动力和信心完 成这篇论文。感恩之余，诚恳地请各位老师对我的论文多加批评指正，使我及时完 善论文的不足之处。
谨以此致谢最后，我要向百忙之中抽时间对本文进行审阅的各位老师表示衷心、的感 谢。
开学自我介绍范文：首先，我想说“荣幸”，因为茫茫人海由不相识到相识实在是人 生一大幸事，更希望能在三年的学习生活中能够与大家成为好同学，好朋友。其次 我要说“幸运”，因为在短暂的私下接触我感觉我们班的同学都很优秀，值得我学习 的地方很多，我相信我们班一定将是团结、向上、努力请保留此标记。）的班集体。
最后我要说“加油”衷心地祝愿我们班的同学也包括我在内通过三年的努力学习最 后都能够考入我们自己理想中的大学，为老师争光、为家长争光，更是为了我们自
9
己未来美好生活和个人价值，加油。哦，对了，我的名字叫“***”，希望大家能记
住我，因为被别人记住是一件幸福的事！！
）查看更多与本文《高中生开学自我介绍》相关的文章。