水泥库柔性滑模混凝土浇注方案yi

1、531水泥库混凝土浇筑方案531cement silo concrete casting scheme一 、说明 introduce 本工程为531水泥库滑模施工，相对标高为7.50050.700，混凝土量为760 m3（C40），为有效地控制和保证基础混凝土浇注质量，故编制此施工方案。This scheme is for cement silo concrete casting , cement silo is reinforcement concrete cylindrical structure, with central diameter of 15m, total height is

2、 42.8m.There is a certain change of the thickness of wall at the height of17.318m from 600mm to 300 mm. There is a cone on the600mm silo wall and to be separate with the silo wall. the design elevation is from 7.50050.700，the quantity of concrete is 760m3（C40）.二、 准备Preparetion 1、搅拌站准备：计划分成两班Batching

3、 plant : two shiftsPump/pumpoperatorconcrete mixer /driverloder /driverAggregate cementsandaddimixture每班each shift2台 /4人4台 /4人2台 /1人保证每班连续浇筑120 m3Each shift must prepare materials for 120 m3 concrete 合计total2台 /8人4台 /8人2台 /2人保证连续浇筑760 m3 Totally should be760 m3 concrete注：1、一班工作时间从早上开始至下午7点；二班工作时间下午7

4、点至第二天早上七点；直至浇筑结束。2、设备提前检修保证完好，检修人员24小时值班。3、搅拌站每天必须准备至少100吨水泥。1、First shift beginning at morning 7 am until 7pm; second shift from 7pm until next day 7am. 2、Examine and repair the equipment before working ,maintainer must 24 hours stay at batching plant. 3、The batching plant every day must prepare 10

5、0t cement.2、浇筑人员准备：为保证基础混凝土的连续浇筑，组织操作人员分成两班，连续作业，班组人员安排如下表：Personnel preparation Civil controllermonitorSafety controller Mason carpenterSteel workerElectrician maintainerTotal 一班1118461123二班11184611233、机具材料及现场准备：对施工所用机械进行全面检查、保养，并做好备用措施，避免在浇筑混凝土过程中出现机械故障，以保证混凝土浇筑的连续性。机具安排见下表：Equipment preparation v

6、ibratorStandby vibratorLight GeneratorWater point每班4台2台61台1点引水合计6台61台1点引水注：1、机具提前检修保证完好，检修人员24小时值班。2、备用活动碘钨灯6个（各带50m线），移动开关箱2套。3、施工前清理基坑周边，保证施工设备就位通行、人员行动无障碍。1、All the equipment should be checked before using, maintainer 24 hours stay on the site.2、Prepare 6 iodine tungsten lamps.3、Around the silo m

7、ust backfilling .三、浇筑Casting concrete工程所用砼采用集中搅拌，预拌砼在计划书中标明浇捣时间、部位、强度及抗渗要求、坍落度要求、一次浇捣方量及计划浇捣时间等数据。仓壁滑升时，砼连续浇灌，振捣手跟进振捣，正反方向同时分头入模和振捣，避免单向施工最后出现冷缝。滑模施工最适宜坍落度为90-140mm。The concrete adopted for this job will be ready mixed concrete. The following data shall be noted in the plan sheet: pouring and vibrat

8、ing time, pouring section, strength requirement, slumps and the quantity (cubic meters) intended to be poured and planned time of pouring. When slip form starts, the concrete shall be continuous, and the masons follows to vibrator. The concrete will be put into formworks and vibrated at the same tim

9、e from both directions, so as to avoid the occurrence of slots or cracks caused by the already hardened concrete when only work to one direction. The proper slump requirement for slip form is 120-150mm. 砼的运输：砼用地泵浇筑之内平台上，在内平台上用自制铁斗车供到浇灌点。Concrete transportation: the concrete will be pumped to the ins

10、ide formwork and the transport to supplied place by handcarts. 砼浇灌：仓壁滑升时，每一车倾倒在两个提升架空档，平仓手将平台上砼铲入模内，振捣手跟进振捣。砼连续浇灌，正反方向同时分头入模和振捣，避免单向施工最后出现冷缝。Concrete pouring: when the silo wall is sliding up, put the concrete from the handcart onto the platform between two slip form supports, masons shovel all the

11、concrete on the platform into the formwork, other masons following to vibrate the concrete. The concrete shall be continuously, and put into formworks and vibrated at the same time from both directions, so as to avoid the cold joint caused by the already hardened concrete when only work in one direc

12、tion.砼入模后及时用插入式振动棒振捣，操作时按“快插慢拔”、“棒棒相接”，采用“并列式”振捣；每点振捣时间20s30s，当砼表面不再显著下沉不出现气泡，表面泛浆方能停止振捣；振捣棒在振捣上层砼，插入下层砼不大于5cm，消除两层之间接缝，严禁漏振、过振现象发生。After put the concrete into the formwork, vibrate it in time with poker vibrator. The working principle is “quickly insert and slowly pull out”, “one vibrator after ano

13、ther”, “vibrating in parallel”. For each point, the vibrating time is 20s-30s, the vibration could not be stopped only when the concrete surface does not go down obviously, and there is no air bubble comes out, and thick liquid occurs on the concrete surface. When vibrating the upper layer, insert t

14、o the lower layer could not more than 5cm. No vibration and over vibration is forbidden.砼出料后，进行坍落度抽检及强度试件抽检，滑模施工最适宜坍落度为90-140mm。When concrete is delivered, slump should be checked on site . The proper slump for slip form construction is 120-150mm.滑升sliding-up初滑：开始浇注库壁时，砼分两层正、反向浇筑1200mm模板4-5小时开始试提升，提

15、升2-4个行程，出模砼手压有轻微手印不粘手，稍停息可转入正常滑升。Preliminary sliding-up: when begin with silo wall casting, the first 1.2m , should be cast by two times each time 600mm. Try to slide up the wall after 4 or 5 hours with 2 to 4 courses. Test the concrete out of the formwork with hand, when there is only a slight fing

16、erprint and the concrete does not stick to the hand, then the normal sliding up procedure could be carried out after a short break.当库底板施工完毕浇注上部库壁混凝土时，处理方法同上。After completion of the soleplate construction, the above-mentioned method shall be taken for the casting of upper silo wall. 2、砼要求：见下表 concrete request GradeQuantity of concreteT