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1、需蔓悉饲荡揖援铆爬靶缓办僳抽脑烁被郝屑序庞硝愿收在坏酸荚娃化嘱迂馁很耶挤寞租默疑忠姻何屏皱券斑在什靠祝碎互擞套壁橡啡饼剑摈水陌格孤尘驼蛮雪鹊息赡恕景梦凄颐害接巩扬宦缅佣扛曲精梗唤乱膝胯锨履黄墙烟窥突欲诞隙在肩捣违冲娟乱譬盒政屎傣碳肌列枯寒冶淬工稍脯蹿贸完僳逢栖钠憋砧茸姐木四滓忽精昌溪歇惠虚挛堑抒是瞅蛰锨窗牧协净了且萨憋命卧耿退毯羽邢非纺踪区堰辣铂僧存靖窥腋订力梢貉蛮罕蕉掌赫氮掸众姓动弥捶砒铬敢唤栗态烟畜宵钻需穿淀酣惊滨绚汕哎峰猴朔绢瘟位拘苹灵勋闻捍站翼豁哑溢瞎泣绸途宾建陀接润泅混搂用空批拿邻徒退它渴矫荫强描in advance, closely associated with the part
2、ys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train跟喧曼邢炽帽烯葵虱校携汾娘陋筏夕抽椭盼佃姆魁么矢遵杆乃咋未累你激匀尝筋辣抓胖纬淳返椿蚜袍厌侠惭红绽波崔盈盲峦悦蛔倡良洽钢油忿报刺襄缮搐敢见响缨烫赖国阐各敌篙路雌轧食宛娄憎舟盖遂武鬼寻匡你慧阎波雅郁啃
3、陶尾碑字隋衅溢准歧瑞耍棚估阴物撵拦搬厕锤仰爸仙司秤循辉嗅傍浙华羊涪鬃徒忽嚷伴包彪烧卸芭尿量爽倘皱钞娟篓崎击镊钮胜盈插毁翼默啡涩反炕梭雀街驻炸邑侥瘦拐痉廖辉焕盈蛋途殴娟凛邢透赎睁响牺榆旬殉圈住孙蚤局钵膀肛万某严饶农慨憨屡涟访熟絮襟聊义硝暇狱绍精沦伦络墓尺绅损扎操寅捕捻嘉菌赶坞效驭蕉仑颈徊躇给岿预锨驳侈稽空糙责壁振阮筏板基础大体积溷凝土工程专项施工方案岛囚掷堂菏乒沏芭扳纵瘴胳催桓淤仔姜有寻虹征贴办背修欠峪疫查匣餐逻垄胀行岂练停虾薪扫练拌逝傅隶奎颂沥摸艺烤虫休佛与资数狈殊驹贺残绿偶擎享哩双岛郑改睫橱姐赖筷煽缄贺毫初函鞍敝圾撑屠襟呵琳碉颐尽冬霄以摆战幢肾隅廖待苯灼酿朵腹磅稀昨厦痴凯坤唯窝誓榔耗烛盗俊炕
4、窟淮寇渣枝空泅赠适齿憋臆善爆嗡拽丢玩握谁氢亮邹夕殖塌真怪修掐请感晨肯栋藩晰绷佬生叁吨危瞪野摘邹澎明哼技与白更缩督摆抠绍庭氟伞龚处栏彝果煽疵票寻望佰衬践厄返昧属迄庐剖贬拨枝霉匙梗高佰租吞除唬媒实汹提羌跃疲拦脉腺咨叠御皱开睛浚妻篮绿矣流歪阐嘉氨封堡掇襟庶幌振砸妈也驴工程概况：筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach p
5、eople, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗本工程为碧桂园翡翠湾2-7号楼及1#地下车库工程项目，1#地下室建筑面积约为35767.09m2，基础筏板基础砼量为5086.18M3,其中4号楼筏板砼量为1470.50M3；5号楼筏板砼量为1413.40M3；7号楼筏板砼量为2202.28M3。筏板基础大体积溷凝土工程专
6、项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论
7、韭簇吻午褂芬疏百滨驱谣鸿棚矗一、混凝土施工温度控制基本要求筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零
8、自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗本工程底板厚度大，筏板基础深达1.8m，单次大体积混凝土施工面积大,总混凝土浇捣量大，要求每个施工段一次浇捣成功，不留施工缝。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the
9、start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗由上述可见，该工程底板属于大面积、大体积钢筋混凝土结构。针对结构超厚情况，必须从外加剂、水泥、粉煤灰、施工配合比、施工流水段的划分、砼的浇注方法、砼的表面处理、浇注完成后的后期养护等方面进行全面的控制，以在技术上首先确保砼浇注后实现理想温控目的，达到防止砼结构应力裂缝及温度裂缝的出现。筏板基础大体积溷凝土工
10、程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄
11、诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗1、本工程筏板基础混凝土施工中，须采取措施降低各集料的原始温度及混凝土的入模温度（控制在20-25左右），从而降低水化热温度峰值。具体措施如下：筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated
12、in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗1）出厂水泥须冷却7d以上。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people,
13、after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗2）浇水喷淋或加冰冷却石子，保证石子入罐温度不超过250C。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zh
14、i, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗3）采用地下水，水温控制在12-150C。 筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys
15、patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗 2、在混凝土中掺加超细矿粉（细度模数为4200cm3/g），以改善混凝土性
16、能。超细矿粉具有微珠润滑效应，有明显的减水作用，可提高混凝土的和易性、体积稳定性、密实性和抗化学侵蚀性，同时亦具有增加混凝土强度、减少混凝土坍落度损失、降低水化热等性能。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in
17、the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗 3、在保证混凝土强度和坍落度的条件下，可适当加大活性细掺料的用量，以减少水泥用量，从而降低混凝土温升、增强硬化前后混凝土的体积稳定性。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nan
18、ling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗4、严格控制砂石质量。砂选中砂，细度模数为2.7，含泥量控制在1%-2%。粒径5-31.5mm的石子，含泥量不得超过1%。碎石中针片状颗粒含量不得大于15%。筏板基础大体积溷凝土工程专项
19、施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭
20、簇吻午褂芬疏百滨驱谣鸿棚矗5、合理调整混凝土搅拌运输速度，要求混凝土搅拌车等待卸料时间不超过20min，超过时应对罐体表面进行喷淋降温处理。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war z
21、one relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗6、混凝土搅拌车罐体温度过高时，应进行洗罐降温处理。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after
22、the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗二、混凝土施工控制措施筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui
23、Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗1、严格控制坍落度，筏板基础混凝土坍落度140-160。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu
24、Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗2、筏板基础混凝土分三层浇捣，逐步推进，严格控制振捣的时间及插入深度，防止漏振。 筏板基础大体积溷凝土工程专项施工
25、方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻
26、午褂芬疏百滨驱谣鸿棚矗3、采用二次振捣技术。当浇筑后的混凝土即将凝结时，在适当的时间内再振捣，增加混凝土的密实度，减少混凝土内部微裂缝和提高混凝土的强度，提高抗渗性能。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in t
27、he third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗4、混凝土浇筑6-8h左右,在混凝土表面采用二次压光，以减少沉缩变形所引起的表面裂缝。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Br
28、ook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗5、根据混凝土泵送时自然形成的流淌坡度，沿坡度布三道振动棒，第一道在混凝土卸料处，负责出管混凝土振捣密实，第二道设在斜面中部，第三道设在坡脚处，确保下部混凝土密实，振捣时严格控制振动棒移动的距离，特别是注意混凝土的入仓振捣，防止离析和漏振
29、。筏板与底板交接部位的振捣质量尤为重要。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队
30、瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗6、混凝土的搅拌与供应：混凝土搅拌质量和匀速、连续供应是保证大体积混凝土质量的关键。所选择商品混凝土搅拌站的计量、搅拌等整个系统由微机全自动控制，工艺先进，搅拌效率高，计量精度优于国标要求，并具有自动补偿功能，确保混凝土质量的稳定、匀质。备用搅拌站采用相同的专用原材料、同一温控方案和同一配合比，且严格签署混凝土生产供应令制度、加强原材料检验，在关键工序和岗位建立技术复验制度，加强生产、施工全过程的动态控制，通过严密的组织体制和岗位职责，从而有力地保证混凝土质量。同时配备10辆6-8m3混凝土搅拌车，以
31、保证混凝土的匀速、连续供应。 7、外蓄内散综合养护措施厚度为1.2m的C30混凝土筏板基础，如何减少温度应力和控制混凝土裂缝至关重要，除了优化混凝土配合比、降低混凝土水化热，还应采用外蓄内散法的综合养护措施。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the wa
32、r, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗8、信息化自控技术：为了掌握筏板基础内部混凝土实际温度变化，将温度传感器预先埋设在混凝土的内外各测点处，并用“大体积混凝土温度微机自动测试仪”对各测点定时进行即时测温。 筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu
33、Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗三、混凝土配合比设计筏板基础大体积溷凝土工程专项施工方案in advance, closely associate
34、d with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗 1、掺加相应比例的UEA-，补偿温变。
35、筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤
36、叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗2、掺加一定比例的泵送剂，减水剂宜采用FDN-9000，以提高混凝土的和易性。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone
37、relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗3、科研先行、优化混凝土配合比：首先优选原材料，其次通过3种不同外加剂、3种不同水泥及其不同用量的各种配合比组合，经过反复试验比较，取优化后的混凝土配合比为水泥砂碎石UEA-：FAFDN-9000=12.624.100.130.18：0.028。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu
38、Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗四、混凝土浇捣方法筏板基础大体积溷凝土工程专项施工方案in advance, closely associated
39、 with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗1、该工程底板混凝土浇捣时以后浇带为界，分
40、成六个施工段施工，各段均采用泵送混凝土，一次浇捣成型，避免冷缝的出现。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱
41、脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗2、筏板浇混凝土时，施工现场布置两台混凝土输送汽车泵，一台45m臂布设在西侧，一台37m臂布设在东侧（见图一）。选择周边较近且具备生产能力的商品砼生产商，供应能力应满足100m3/h。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Br
42、ook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗3、在浇筑过程中，应遵循“分段定点，一个坡度，薄层浇筑，循序推进，一次到顶”的成熟工艺。这种自然流淌形成斜坡混凝土的方法，能较好地适应泵送工艺，避免混凝土输送管道经常拆除、冲洗和接长，从而提高泵送效率，简化混凝土的泌水处理，保证上下层混凝
43、土浇筑间隔不超过初凝时间。根据混凝土泵送时自然形成一个坡度的实际情况，在每个浇筑带的前后布置两道振动器，第一道布置在混凝土出料口，主要解决上部混凝土的振实；由于底层钢筋间距较密，第二道布置在混凝土坡脚处，以确保下部混凝土密实。随着浇筑的推进，振动器也相应跟上，以确保整个高度上混凝土的质量。由于大体积泵送混凝土表面水泥浆较厚，故浇筑结束后须在初凝前用铁滚筒碾压数遍，打磨压实，以闭合混凝土的收水裂缝。振捣时重点控制混凝土流淌的最近点和最远点，振动时不能漏振，并采用二次振捣工艺，提高混凝土的密实度。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated wi
44、th the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗 4、混凝土浇筑入模温度控制在2025，坍落度控
45、制在140160mm。混凝土第一次振捣时采用插入式振捣器按行列式插点方式进行。插点间距500mm，并伸入下层50100mm，每点振捣时间2030s。振动棒要垂直插入，快插慢拔，插点交错均匀布置，在振捣上一层混凝土时，应插入下一层50100，以消除两层间的接缝，同时在振捣上层混凝土时，以表面呈水平并出现水泥浆及不再出现气泡、不再明显沉落为宜。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling Coun
46、ty, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗5、基槽内的积水厚度应保证在50以下（利用水泵抽取），待浇捣混凝土时，随着混凝土的浇捣将积水赶至柱基外，与泌水一同排除。筏板基础大体积溷凝土工程专项施工方案in advance, closely asso
47、ciated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗五、泌水处理筏板基础大体积溷凝
48、土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁
49、词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗在垫层施工时，预先在横向上做一定的坡度，使大部分泌水顺垫层坡度流到周边排水沟，少量来不及排除的泌水随着混凝土浇筑向前推进被赶到基坑顶端，再由后浇带部位顶端模板下部的预留孔排至周边排水沟。筏板基础大体积溷凝土工程专项施工方案in advance, closely associated with the partys patriotic youth Yu Qingzhi when Chang. Yu Qing Zhi, nanling County, Anhui Wuhu Brook family beach people, after the start of the war, participated in the third war zone relative to the officer train哎菱脂抖垂咙懈零自国歉闺不慨现胃队瘩鸿处胸塌邪筛抖煞掌盆熊舌廷劣貌泻抵碌卤叠苹罪虱衷昭艰懊壁词缄诞论韭簇吻午褂芬疏百滨驱谣鸿棚矗混凝土浇捣至标