1、精選優(yōu)質文檔-傾情為你奉上 防爆墻施工方案 Blast Wall Construction Proposal防爆墻體基礎為條形基礎，-0.2以下到條形基礎表面是800厚的剪力墻。其施工方案如下。The foundation of blast wall is strip foundation, and below -0.2 to the strip foundation surface is 800 thick shear wall.Construction Proposal as follows:一、施工準備Construction preparation (一)作業(yè)條件Constructio

2、n condition1、已辦完模板及施工縫的預檢手續(xù)。Completing the procedure of formwork and construction joints prechecking2、檢查模板下口、洞口及角模處拼接，大面模板拼接處是否嚴密，加固是否可靠，各種連接件及支撐是否牢固。Check the formwork end openings ，entrances and joining together places，whether the joining together places of big formworks are tight and stably faste

3、ned, and whether the fittings and supports are solid.3、墻體鋼筋應有可靠的定位與混凝土保護層措施。Wall rebar should be reliable positioning and the protective layer of concrete .4、施工縫處提前濕潤。The construction joints should be humid in advance .5、現場工長已對班組長交底，明確混凝土澆筑順序，以及結合漿的數量。The site foremen are responsible to group leader

4、s,and clear understand the concrete pouring sequence and the amount of combined slurry.6、砼澆灌申請已由現場工長填寫完畢，并經施工單位技術負責人簽字確認。The concrete pouring application has been completed by the site foremen and confirmed by the signature of the person in charge of the construction unit.7、已經做好施工前應具備的電力、機械及通訊、人員等的準

5、備Good preparation has been made,such as electrical,mechanical and communications personnel,before construction .(二)材質要求Material requirement1、水泥：水泥品種、強度等級應根據要求確定，質量符合現行水泥標準要求。工期緊時可做水泥快測。必要時要求廠家提供水泥含堿量的報告。Cement:the type ,strength,grade ,etc, shall be in accordance with the requirement.The quality sha

6、ll be in line with the current cement standard .If the schedule is tight, we can do a fast cement test. If necessary, we can ask the manufacturer for providing the cement alkalinity test report.2、 砂、石子：根據結構尺寸、鋼筋密度、砼施工工藝、砼強度等級的要求確定石子粒徑、砂子細度。砂、石質量符合現行標準。必要時做骨料堿活性試驗。 Sand,gravel:determine the gravel pa

7、rticle size , sand fineness according to the requirement of structure size，rebar density，concrete processing，concrete strength grade etc. The quality of sand and gravel shall be in line with the current standard.If necessary,aggregate alkali activity tests shall be done.3、 水：自來水或不含有害物質的潔凈水。 Water:ta

8、p water or water without harmful substance.4、 外加劑：根據施工組織設計要求，采用NC-P3流化膨脹劑。外加劑必須經試驗合格后，方可在工程上使用。 Additive:according to the construction organization design requirements,we shall use fluid expansion agent of the PNC-3. The Additive can use in construction after passing the test.5、摻合料：根據施工組織設計要求，確定是否采用

9、摻合料，質量符合現行標準要求。必要時要求廠家提供含堿量的報告。Admixture:determining whether the admixture is used according to the construction organization design requirements. The quality shall be in line with the current standard.If necessary, we can ask the manufacturer for providing the alkalinity test report.6、 鋼筋：鋼筋的級別、規(guī)格必

10、須符合設計要求，質量符合現行標準要求。外觀檢查表面無老銹和油污。Rebar: the grades and specifications must meet the design requirements and the current standard.Visual inspection of the rebar surface shall be without old rust and oil.7、脫模劑：水質隔模劑。Parting agent: water isolating agent (三)工器具Tools and instruments混凝土攪拌、輸送設備、一般需固定式砼泵、插入式

11、振搗器(50，有效振搗長度375mm)、灰槽、溜槽、鐵鍬、半截水桶、泵管、布料桿等。Concrete mixing , transportation equipment , which normally takes stationary concrete pump ,immersion vibrator(50, effective vibrating length of 375mm ) , ashveyor, chute , spades , half a bucket , pump tubes , placing booms ,etc.二、質量要求Quality requirement注：砼

12、施工過程具體要嚴格控制砼澆筑質量。Note: Concrete construction process shall be strictly control the concrete pouring Quality .三、工藝流程Process procedure 本工藝按商品砼考慮：澆結合砂漿砼澆筑、振搗拆模及養(yǎng)護Take the process as commercial concrete : pouring binding mortar - concrete pouring , vibrators - formwork removal and conservation.4、 操作工藝Op

13、eration process5、 (一)先根據澆筑段墻體軸線長度和墻厚計算出的方量，攪拌與混凝土同配比的無石子砂漿，盛放在灰槽之中(一次不宜攪拌太多。若自拌混凝土，可隨用隨拌；若預拌混凝土，可根據澆筑量分階段要結合砂漿)。然后澆筑在底部接槎處約10cm厚，用鐵鍬均勻入模，不得用泵管直接灌入模內，入模應根據墻體混凝土澆筑順序進行(應根據現場隋況確定混凝土澆筑順序)，隨澆筑砂漿隨澆筑混凝土，禁止一次將一段全部澆筑，以免砂漿凝結。Firstly, count the square amount ，according to the pouring wall axis length and wall

14、thickness.Mix the non-gravel mortar which has the same ratio with concrete and put it into ashveyor(Don't mix too much at one time.If it's self-mixing concrete,it can be mixed while used;if it's pre-mixing concrete, it can be mixed with mortar according to the pouring amount in different

15、 phrases).Then pour it to the bottom contact point about 10cm , put it into mold evenly with spade and put it into mold directly with pump pipe is not allowed. Molding shall be in accordance the sequence of concrete pouring(The sequence of concrete pouring shall be determined according to the site s

16、ituation.)In order to avoid mortar condensing, mortar pouring shall follow the concrete pouring and pouring a whole part at one time is not allowed.(2) 澆筑時，要將泵管中砼噴射在溜槽內，由溜槽入模。注意隨時用布料尺桿丈量砼澆筑厚度，分層厚度為振搗棒作用有效高度的1.25倍(一般50振搗棒作用有效高度為470mm)，墻體要連續(xù)澆筑，嚴格按照墻體混凝土澆筑順序圖的要求按順序分層澆筑、振搗。砼下料點應分三點布置。在砼接槎處應振搗密實，澆筑時隨時清理落

17、地灰。While pouring,the concrete in pump pipe shall spray into chute then into the mold.Pay attention to using the ruler to measure the thickness of pouring concrete at all times.The layering thickness shall be 1.25 times as the effect of vibrator beam effective height(Generally,50 vibrator beam effect

18、ive height is 470mm).Wall pouring shall be continuous;and strictly in line with wall concrete pouring sequence drawing in layers and vibrating.Concrete pouring shall be in different place .Vibrating shall be compacted at the concrete contact point and clean the dust while pouring(三)振搗點要求均勻分布，一般應50cm

19、，同時根據鋼筋的密集程度，應配備少量的30振搗棒(應附圖)。Vibrating point shall be evenly distributed,generally 50cm.Meanwhile,a few 30 vibrator beam shall be provided (Referring to the drawing).(四)洞口進行澆筑時，洞口兩側澆筑高度應均勻對稱，振搗棒距洞邊30cm，從兩側同時振搗，以防洞口變形。While pouring the hole,the pouring height of the two side shall be even and symmet

20、rical.The distance between vibrator beam and hole shall be 30cm and vibrate from the two sides so as to avoid deforming.(5) 在鋼筋密集處或墻體交叉節(jié)點處，要加強振搗，保證密實。In rebar crowded areas and wall cross joints, strengthen vibrating and ensure compacting(六)在振搗時，要派專人看模，發(fā)現有脹模、跑位等情況時及時處理，以保證砼的結構尺寸及外觀。While vibrating,a

21、 special personnel shall be sent to watch the formwork,any formwork inflating and positioning shall be dealt with in time so as to ensure the structure size and appearance of the concrete.(七)振搗：振搗器的水平移動間距根據振搗棒的有效長度確定，振搗上層砼時，應插入下層砼內的深度不小于50mm，振搗要做到“快插慢拔”，并且要上下微微抽動，以使上下振搗均勻。在振搗時，使砼表面呈水平，不再顯著下沉、不再出現氣泡表

22、面泛出灰漿為止。振搗中，避免碰撞鋼筋、模板、預埋件等，發(fā)現有位移、變形，與各工種配合及時處理。Vibrating:Vibrator horizontally moving distance shall be determined based on the effective height of vibrator beam.while vibrating upper level concrete ,the depth of vibrator beam in the lower level concrete shall be not less than 50mm.Vibrating shall b

23、e "inserting quickly and pulling out slowly "and move slightly so as to make it even up and down.While vibrating, the concrete surface shall be kept level with out clearly submerged,bubbles and mortar.In vibrating,the colliding of rebar,formwork,embedded fittings needs to be avoided.We wil

24、l cooperate with different occupation staff to handle if there is any displacement or deformation.(8) 墻上口找平：砼振搗完畢，將上口甩出的鋼筋加以整理，木抹子按標高線控制(比頂板底高23cm)，將表面找平。注意將施工縫的部位密實成型。Wall upside opening leveling:to make up the rebar thrown from the upside opening; and patter control based on elevation(2-3cm higher

25、 than top slab),and to keep the surface leveling.Pay attention that position of construction joint compaction(9) 墻體混凝土試塊按要求現場應取一組標準養(yǎng)護試塊(如混凝土方量大，應按試驗要求取)、一至四組同條件養(yǎng)護試塊(一組為檢驗7.5MPa強度，一組為檢驗1.2MPa強度，冬施時，二組檢查抗凍臨界強度，可根據氣候及樓層情況不定期制作)。The wall concrete test block shall take a group of test blocks(taking the t

26、est blocks according to the testing requirement,if the concrete earthwork is large),1-4group curing test blocks under the same condition(one for 7.5MPa strength testing,one for 1.2MPa strength testing ;while construction in winter, two group for the critical strength testing,and testing irregularly

27、based on climate and storey)(10) 按同條件砼試驗單提供的數據控制好拆模時間(同條件試塊強度達到1.2MPa)，使拆模時墻體不粘模、不掉角、不裂縫，無砼的質量缺陷，達到光滑平整， 質量要求達到內部質量控制表的要求，養(yǎng)護根據現場情況提供不同方法。Controlling the formwork removal time based on data provided by the concrete test under the same condition(Test block strength reaches to 1.2MPa under the same con

28、dition).The wall shall be smooth and leveling ,without formwork-pasting,wall falling-off and quality flaws of concrete.The quality shall meet the requirements of the Internal Quality Control Form.(11) 墻體混凝土養(yǎng)護：墻體混凝土應派專人養(yǎng)護，養(yǎng)護方法一般為刷養(yǎng)護劑或噴水養(yǎng)護。噴水養(yǎng)護應每隔2小時養(yǎng)護一次，養(yǎng)護期不小于7天。刷養(yǎng)護劑時，基層應撒水濕潤，待表面無明水時，開始刷養(yǎng)護劑，刷完養(yǎng)護劑后，嚴禁

29、再向墻面噴水養(yǎng)護。Wall concrete curing: Special personnel shall be sent to cure the wall concrete.Generally, the curing measures are plastering curing agent or spraying water.Spraying water curing shall be every two hours and the curing period is 7 days.While plastering curing agent, the foundation base shal

30、l be wet by spraying water, and when the surface is without water ,then start to plaster curing agent,after completing the plastering the agent, spraying water for curing is forbidden.(十二)成品保護Finished goods protection1、砼振搗過程中要保護墻體甩出鋼筋，施工完畢后及時調整鋼筋位置。In concrete vibrating,the rebar thrown from the wal

31、l needs to be preserved and adjust the position of rebar immediately,after the completion of construction.2、應保護好預留洞、預埋件及預埋套管等。The reserved hole, embedded fittings ,pipe,etc, shall be weel-preserved.3、秋冬季節(jié)，應注意對墻體的養(yǎng)護，防止風干，引起墻面龜裂。In autumn and winter, the wall curing shall be noted. Preventing air-drying which will cause the wall surface cracks.4、對于邊角部分，應用廢竹膠板進行保護。5、模板拆除時，防止大模碰壞墻體。While formworks removal,prevent big fo