×4500td熟料带余热发电水泥生产线冬季专项施工方案.doc

一、编制依据1.1建筑工程冬期施工规程 JGJ104-971.2混凝土结构工程施工质量规范 GB50204-20021.3冬期混凝土综合蓄热法施工成熟度控制养护规程 DBJ/T01-36-971.4混凝土泵送施工技术规程JGJ/T 10-951.5国产实业（湖南）水泥有限公司24500t/d熟料带余热发电水泥生产线工程土建标段施工图纸二、工程概况2.1 本标段工程范围：2.1.1 工程项目子项明细表如下：1、原料粉磨及废气处理;2、生料均化库及生料入窑；3、烧成窑尾/窑尾电气室；4、烧成窑中及三次风管；5、烧成窑头/窑头电气室； 6、煤粉制备及输送、钢渣粉磨及输送；7、生活水塔；8、钢渣库（原料磨）；9、压缩空气站（三）；10、中央控制室化验室；11、熟料储存及输送、熟料汽车散装及输送；12、烧成系统回水池及泵房;13、熟料输送;14、窑头余热锅炉;15、窑尾余热锅炉;16、电力总平衡;17、生活喷水池及泵房;18、外来输送输送;19、发电汽水管线;20、烧成有泵站。2.1.2工程内容土建工程；给排水工程；照明、防雷及接地工程等相关内容。2.2工程项目概述本工程为国产实业水泥有限公司24500t/d熟料带余热发电水泥生产线工程，建设地点位于湖南省涟源市。施工建设场地场平工作已基本完成，具备施工条件；施工用水、用电已接入施工现场，已具备施工条件；场区外交通便利，道路畅通，场区内道路已修筑，其余施工便道由施工方负责回填修筑。本工程采用的各类通用图（包括国标、省标、院标）除修改部分在施工图纸中加以说明外，其施工制作、运输、安装等各项要求均应按其相应的通用图执行。本工程抗震烈度为6度，基本加速度0.05g。结构设计使用年限主要建（构）筑物为50年，次要建（构）筑物为25年。本工程基础结构形式为钢筋混凝土桩基础、独立柱基础、条形基础及整板基础。2.2.1结构类型及规模本项目为国产实业水泥有限公司24500t/d熟料带余热发电水泥生产线工程，设计规模为24500t/d熟料生产线，主要结构形式为筒仓、多层框架、钢结构及砖混结构等。2.2.2设计单位及资金来源该工程由中国中材国际工程股份有限公司南京设计研究院。工程资金来源为自筹资金。三、冬期施工准备工作3.1技术准备3.1.1认真学习贯彻国家有关冬期施工的规范、规程及公司的有关文件，组织所有参加冬施的人员进行冬施培训。对图纸中较难保温的部位作出有效的处理。3.1.2根据桂林地区气象部门预测：冬季日平均温度基本上在12度左右。故砼工程和砌筑装饰工程按正常要求施工3.1.3冬期施工培训：冬期施工由技术负责人组织向施工管理人员、技术骨干、工长及班组长作冬施方案交底和培训,明确施工方案、技术措施，施工方法、质量要求、施工试验要求。工长应写详细技术交底，交到所有操作人员，使所有操作人员都明确冬施要求。3.2现场准备3.2.1项目部成立冬施领导小组，全面领导冬施工作，成员如下： 组 长：周晶峰 副组长：罗桂华 组 员：杨勇波、何斌、徐志刚、李小安、肖晓庄、邓路涛、李小平、秦季春、颜汉雄、吴世福、周善成等3.2.2制订安全消防措施：施工现场成立义务消防队，确定章彤为现场防火负责人，负责施工现场的消防安全工作。3.3混凝土工程3.3.1根据娄底地区气象部门预测：冬季日平均温度基本上在12度左右，故砼工程按正常要求施工。按规范要求，当室外日平均气温连续5天稳定低于5C且最低气温低于0C时，混凝土结构工程应采取冬期施工措施，根据北京地区气象资料，从11月07日至来年1月04日为冬季施工期，为防止气温突然下降，本工程从11月02日就能具备冬期施工的条件。3.3.2混凝土必须使用不低于P O32.5R普通硅酸盐水泥，水泥用量每立方米不低于300公斤，水灰比为0.4-0.6，泵送混凝土的含砂率为38%-45%。坍落度：墙体、柱为160mm,底板和顶板为140mm,允许偏差为2mm。混凝土入模温度不低于15。3.3.3混凝土的浇筑3.3.3.1混凝土入模前，应把模内及钢筋上冰雪、杂物清除干净。3.3.3.2墙板混凝土应分层浇筑，每层浇筑厚度为44cm，泵送混凝土布料点应均匀布置，应准备好测量厚度的标尺杆及手把灯。3.3.4混凝土的养护：顶板混凝土浇筑后，上表面应用塑料薄膜覆盖，墙体混凝土拆模后表面涂刷抗冻型养护液，防止混凝土脱水。对已经完成的结构，四周窗口采用草帘被封挡，必要时内生火炉加热。3.3.5混凝土的测温：混凝土入模温度每工作班4次。测温孔采用铁皮管下端堵死，浇筑混凝土前预埋固定，露出混凝土表面50mm，内加防冻液50mm，上口用聚苯堵严。当温度降到0C之前，混凝土强度应达到4N/mm2（临界强度）。混凝土浇筑时要求每两小时测一次混凝土入模温度，待混凝土成型后即进行养护期间的测温工作，混凝土升温阶段每2小时测温一次，降温阶段每8小时测温一次，在此期间还应对大气温度每日进行测量。 3.3.6冬期施工混凝土试件留置：混凝土试件除按规定留置外，应增加两组与结构同条件养护的试件（现场焊制钢筋笼放置试块，置于楼层作业面），一组用于检查临界强度，一组用于检查冬季转常温养护28天的强度。另工地设标养室，冬季使用电热管和温控器控制恒温，为控制湿度，养护室设置喷雾加湿装置。3.3.7温度裂缝的控制：预拌混凝土施工时要严格控制配合比及浇筑温度，保证混凝土质量均匀，振捣密实，养护保温及时。3.4钢筋工程3.4.1钢筋冷拉：钢筋冷拉可在负温下进行，但温度不低于-20。3.4.2钢筋在加工、运输、绑扎过程中，注意防止产生撞击、划痕等缺陷。本工程钢筋连接采用搭接和焊接。3.4.3冰雪天采取护盖措施，防止表面结冰瘤，砼浇灌前，应清除（如存在）钢筋上的积雪、冰屑，必要时用热空气处理；绑扎完后，应尽快进行下一道工序。3.5模板工程3.5.1墙体模板： 3.5.1.2钢模板外侧空当用聚苯泡沫塑料填塞进行保温，局部聚苯板不能填塞的用铁丝拴挂阻燃草帘子保温，拆模后用铁丝拴挂阻燃草帘子保温，防止砼过快冷却。对边、棱角部位增大保温厚度。 3.5.1.3作业层外圈四周在外挂架部位立面封2道彩条布，用于挡风。3.5.2顶板模板3.5.2.1顶板混凝土浇筑后，在初凝前覆盖一层塑料布，塑料布上再覆盖二层防火草帘，下层房间内门窗洞口处采用彩条布包裹防火草帘封严，房间内用炉子加热，利于混凝土早期强度的增加。炉子要有专人24小时看管，防止火灾。板跨度8m时，至少20天后方可拆除模板，板跨度8m时，至少28天后方可拆除模板。（实际拆模时间以该部位混凝土同条件抗压试块强度为准）。3.5.2.2挑板混凝土浇筑后，在初凝前覆盖一层塑料布，塑料布上再覆盖二层防火草帘，挑板下部用防火草帘封严，至少28天后方可拆除模板（实际拆模时间以该部位砼同条件抗压试块强度为准）。3.5.3砼拆模顶板模板、梁底模板当砼强度达到设计强度70%方可拆除，侧模板在砼浇筑成型24小时后方可拆除，并应及时加保温材料保温，所有模板拆除的强度依据，必须以同条件试块试压结果为准。3.6回填土及地下防水工程3.6.1回填土3.6.1.1对土层的保温：采用防火草帘被叠加覆盖，覆盖的层数应视室外当天最低气温而定。3.6.1.2摊铺的厚度：每层铺土厚度20cm，(如存在大粒径冻土块应做破碎处理)其中冻土块体积不得超过填土总体积的15%，其粒径15cm。摊铺时，冻土块应均匀分布，逐层压实。3.6.1.3为确保土的质量及尽可能避免受冻，我方将积极与周边在施土方单位联系，在肥槽回填过程中根据工程进展情况，向对方购买优质未受冻好土以备回填。3.6.1.4回填土施工在填方前应预先清除基底上的雪（如存在）和保温材料，填方边坡表层100cm以内不得采用含有冻土块填筑，整个填方上层部位必须用未冻土回填。3.6.1.5回填土施工应连续进行，以防止基土或已填土层受冻，如有施工间歇，应立即在已填土上表面做防火草帘保温处理。3.6.2沥青防水卷材粘贴3.6.2.1外环境温度在-10 以上时，对防水卷材采用热熔法满粘。当室外环境温度低于-10时，暂不施工。3.6.2.2防水卷材的存放：应预先存放于临时仓库内，随用随取。3.7水电工程3.7.1现场临时敷设水管保温：现场内上水水管、消防管等用相应规格岩棉瓦（或用草绳捆绑，外抹混合灰）；自来水龙头、消火栓等外钉木箱装锯末进行保温；临时泵房、水箱用聚苯板或防火草帘保温。3.7.2水暖、电气工程：在冬期不进行湿作业，故而不须采用保温措施。但在焊接时应注意，不得在-10以下施焊，且焊件接头不得与冰雪接触，负温焊接时应调整工艺参数，风力超过四级应有挡风措施或在室内进行。3.8地下防水工程3.8.1应选择无风晴朗天气进行，雪天及五级风以上的天气不得施工。3.8.2找平层应做到干燥、平整，有积雪、残留冰霜杂物等应清扫干净，当工期紧时应使用喷灯将找平层烤干。3.8.3为加快工期进度，尽快打上底板砼，避免地基土受冻。3.8.4严格按照工艺标准的要求进行细部节点的施工，主要注重穿墙管、施工缝、阴阳角等处的节点。具体见防水施工技术交底。3.8.5考虑到防水施工时，基坑内铺有大量保温材料，溶剂型基层处理剂未充分挥发前不得使用喷灯操作，操作时必须保持火焰与卷材的喷距，严防火灾的发生。四、质量标准和质量目标4.1钢筋的绑扎、焊接都应符合规范、标准要求，详见分项施工方案。合格率100%。4.2模板的支搭、接缝、垂直度应符合规范、标准要求，详见分项施工方案。合格率100%。4.3混凝土的浇筑、振捣及缺陷应符合规范、标准要求，详见分项施工方案。合格率100%。五、安全、消防防护冬施前要对全体施工人员进行冬施技术及安全、消防教育，做详细技术交底，使所有人员都明确冬施技术、安全及消防要求。5.1消防措施5.1.1防火责任人的职责：组织宣传、执行消防法规规章和防火技术规范，组织制定和审查施工现场的防火安全方案和措施。5.1.2使用电气设备和化学危险品，必须符合规范和操作规程，严格防火措施，确保施工安全，严禁违章作业。施工作业用火必须给保卫部门审查批准，领取用火证，方可使用，用火证只在指定地点和限定的时间内有效。5.1.3施工材料的存放、保管，应符合防火安全要求，易燃材料必须专库储存，化学易燃物品和压缩可燃性气体容器等应按其性质设置专用库房分类存放，建设工程内不准作为仓库使用，不准积存易燃可燃材料。5.1.4安装电器设备，进行电、气切割作业等，必须由合格的电工、焊工等专业技术人员操作。5.1.5冬季施工使用电热器，须有工程技术部门提供的安全使用技术资料，并经施工现场防火负责人同意。冬季施工用的保温材料，不可采用可燃材料。5.1.6施工中使用化学易燃品时，应限额领料。禁止交叉作业，禁止在作业场所分装、调料，禁止在工程内使用液化石油气钢瓶。5.1.7非得施工现场消防负责人批准，任何人不得在工程内住宿。5.1.8施工现场严禁吸烟，木材堆场及加工棚设消防栓，周围3m内不得存放任何物品。5.1.9设置消防竖管，管径为100mm，并随楼层的升高，每隔一层设一处消防栓口，配备水龙带。5.1.10氧气瓶、乙炔瓶工作间距不小于5m两瓶同时明火作业距离不小于10m。5.1.11楼内取暖设备应设专人看管，炉口不能冒出火焰，室内每一施工段设不少于2个灭火器，并按施组要求配置消防水管及消火栓。室外按施组要求配置灭火器。工地成立消防安全组织。施工用火须开用火证。5.2安全措施5.2.1脚手架上的冰雪要及时清理干净。5.2.2六级以上风雪天塔吊应停止作业。5.2.3洞口、临边防护 1.5m1.5m以下的孔洞，应预埋通长钢筋网或加固定盖板。1.5m1.5m以上的孔洞，四周必须设两道护身栏杆，中间支挂水平安全网。电梯井口必须设高度不低于1.2m的金属防护门，电梯井内首层和首层以上每隔四层设一道水平安全网，安全网应封闭严密。未经上级主管技术部门批准，电梯井内不得做垂直运输通道和垃圾通道。楼梯踏步及休息平台处，必须设两道牢固防护栏杆或用立挂安全网做防护。5.2.4高处作业防护5.2.4.1高处作业中的安全标志、工具仪表、电气设施和各种设备，必须在施工前加以检查，确认其完好，方能投入使用。5.2.4.2高处作业人员以及搭设高处作业安全设施的人员必须经过专业技术培训及专业考试合格，持证上岗，并必须进行体格检查。5.2.4.3施工中对高处作业的安全技术设施，发现有缺陷及隐患时，必须及时解决；危及人身安全时，必须停止作业。5.2.4.4高处作业中所用的物料，均应堆放平稳，不得妨碍通行和装卸，工具应随手放入工具袋。作业中的走道、通道板和登高用具，应随时清除干净；拆卸下的物件及余料和废料均应及时清理运走，不得随意乱置或向下丢弃，传递物件禁止抛掷。5.2.4.5因作业需要，临时拆除或 变动安全防护设施时必须经技术及安全负责人同意，并采取相应的可靠措施，作业后立即恢复。5.2.4.6在建筑物首层四周设6m宽水平安全网，每隔四层还应固定一道3m宽的安全网，水平网接口处必须连接严密，与建筑物之间缝隙不大于10cm，并且外边沿明显高于内边沿。5.2.4.7建筑物的出入口应搭设长6m，宽于出入通道两侧各1m的防护棚，棚顶应满铺不小于5cm厚的脚手板，非出入口和通道的两侧必须封严。临近施工区域，对人或物构成威胁的地方，必须支搭防护棚，确保人、物的安全5.2.5脚手架作业防护5.2.5.1钢管脚手架应用外径48mm，壁厚3.5mm无严重锈蚀、弯曲、压扁或裂纹的钢管，脚手杆件不得钢木混搭。钢管脚手架的杆件连接必须使用合格的码钢扣件，不得使用钢丝和其它材料绑扎。5.2.5.1结构脚手架立杆间距不得大于1.5m，大横杆间距不得大于1.2m，小横杆间距不得大于1m。5.2.5.2脚手架必须按楼层与结构拉接牢固，拉接点垂直距离不超过4m，水平距离不超过6m。脚手架的操作面必须满铺脚手板，离墙面不得大于20cm，不得有空隙和探头板、飞跳板。脚手板下层设水平网。操作面外层设两道护身栏和一道挡脚板，立挂安全网，下口封严，防护高度为1.2m。g an employment tribunal claimEmployment tribunals sort out disagreements between employers and employees.You may need to make a claim to an employment tribunal if: you dont agree with the disciplinary action your employer has taken against you your employer dismisses you and you think that you have been dismissed unfairly.For more information about dismissal and unfair dismissal, seeDismissal.You can make a claim to an employment tribunal, even if you haventappealedagainst the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any compensation awarded to you as a result of your failure to appeal.Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are complaining about happened. If your application is received after this time limit, the tribunal will not usually accept it.If you are worried about how the time limits apply to you, take advice from one of the organisations listed underFurther help.Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation.Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the organisations listed underFurther help.If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your compensation if you win the case. This is known as adamages-based agreement. In England and Wales, your solicitor cant charge you more than 35% of your compensation if you win the case.If you are thinking about signing up for a damages-based agreement, you should make sure youre clear about the terms of the agreement. It might be best to get advice from an experienced adviser, for example, at a Citizens Advice Bureau. To find your nearest CAB, including those that give advice by e-mail, click onnearest CAB.For more information about making a claim to an employment tribunal, seeEmployment tribunals.The (lack of) air up there Watch mCayman Islands-based Webb, the head of Fifas anti-racism taskforce, is in London for the Football Associations 150th anniversary celebrations and will attend Citys Premier League match at Chelsea on Sunday.I am going to be at the match tomorrow and I have asked to meet Yaya Toure, he told BBC Sport.For me its about how he felt and I would like to speak to him first to find out what his experience was.Uefa hasopened disciplinary proceedings against CSKAfor the racist behaviour of their fans duringCitys 2-1 win.Michel Platini, president of European footballs governing body, has also ordered an immediate investigation into the referees actions.CSKA said they were surprised and disappointed by Toures complaint. In a statement the Russian side added: We found no racist insults from fans of CSKA.Age has reached the end of the beginning of a word. May be guilty in his seems to passing a lot of different life became the appearance of the same day; May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do it.一字开头的年龄已经到了尾声。或许是愧疚于自己似乎把转瞬即逝的很多个不同的日子过成了同一天的样子；或许是追溯过去，对自己那些近乎偏执的怪异信念的醒悟，这些天以来，思绪一直很凌乱，在脑海中不断纠缠。总觉得自己自己似乎应该去做点什么，或者写点什么。二十年的人生轨迹深深浅浅，突然就感觉到有些事情，非做不可了。The end of our life, and can meet many things really do?而穷尽我们的一生，又能遇到多少事情是真正地非做不可？During my childhood, think lucky money and new clothes are necessary for New Year, but as the advance of the age, will be more and more found that those things are optional; Junior high school, thought to have a crush on just means that the real growth, but over the past three years later, his writing of alumni in peace, suddenly found that isnt really grow up, it seems is not so important; Then in high school, think dont want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at his thrown a basketball hoops, suddenly found himself has already cant remember his appearance.童年时，觉得压岁钱和新衣服是过年必备，但是随着年龄的推进，会越来越发现，那些东西根本就可有可无；初中时，以为要有一场暗恋才意味着真正的成长，但三年过去后，自己心平气和的写同学录的时候，突然就发现是不是真正的成长了，好像并没有那么重要了；然后到了高中，觉得非要吐露出自己的心声才能为高中生涯里的懵懂情愫划上一个句点，但毕业晚会的时候最终还是被梗塞在了咽喉，后来再次站在他曾经挥汗如雨的球场，看着他投过篮球的球框时，突然间发现自己已经想不起他的容颜。Originally, this world, can produce a chemical reaction to an event, in addition to resolutely, have to do, and time.原来，这个世界上，对某个事件能产生化学反应的，除了非做不可的坚决，还有，时间。A persons time, your ideas are always special to clear. Want, want, line is clear, as if nothing could shake his. Also once seemed to be determined to do something, but more often is he backed out at last. Dislike his cowardice, finally found that there are a lot of love, there are a lot of miss, like shadow really have been doomed. Those who do, just green years oneself give oneself an arm injection, or is a self-righteous spiritual.一个人的时候，自己的想法总是特别地清晰。想要的，不想要的，界限明确，好像没有什么可以撼动自己。也曾经好像已经下定了决心去做某件事，但更多的时候是最后又打起了退堂鼓。嫌恶过自己的怯懦，最终却发现有很多缘分，有很多错过，好像冥冥之中真的已经注定。那些曾经所谓的非做不可，只是青葱年华里自己给自己注射的一支强心剂，或者说，是自以为是的精神寄托罢了。At the moment, the sky is dark, the air is fresh factor after just rained. Suddenly thought of blue plaid shirt; Those were broken into various shapes of stationery; From the corner at the beginning of deep friendship; Have declared the end of the encounter that havent start planning. Those years, those days of do, finally, like youth, will end in our life.此刻，天空是阴暗的，空气里有着刚下过雨之后的清新因子。突然想到那件蓝格子衬衫；那些被折成各种各样形状的信纸；那段从街角深巷伊始的友谊；还有那场还没有开始就宣告了终结的邂逅计划那些年那些天的非做不可，终于和青春一样，都将在我们的人生中谢幕。Baumgartner the disappointing news: Mission aborted. r plays an important role in this mission. Starting at the ground, conditions have to be very calm - winds less than 2 mph, with no precipitation or humidity and limited cloud cover. The balloon, with capsule attached, will move through the lower level of the atmosphere (the troposphere) where our day-to-day weather lives. It will climb higher than the tip of Mount Everest (5.5 miles/8.85 kilometers), drifting even higher than the cruising altitude of commercial airliners (5.6 miles/9.17 kilometers) and into the stratosphere. As he crosses the boundary layer (called the tropopause),e can expect a lot of turbulence.The supersonic descent could happen as early as Sunda.The weatheThe balloon will slowly drift to the edge of space at 120,000 feet ( Then, I would assume, he will slowly step out onto something resembling an Olympic diving platform.Below, the Earth becomes the concrete bottom of a swimming pool that he wants to land on, but not too hard. Still, hell be traveling fast, so despite the distance, it will not be like diving into the deep end of a pool. It will be like he is diving into the shallow end. Skydiver preps for the big jumpWhen he jumps, he is expected to reach the speed of sound - 690 mph (1,110 kph) - in less than 40 seconds. Like hitting the top of the water, he will begin to slow as he approaches the more dense air closer to Earth. But this will not be enough to stop him completely.If he goes too fast or spins out of control, he has a stabilization parachute that can be deployed to slow him down. His team hopes its not needed. Instead, he plans to deploy his 270-square-foot (25-square-meter) main chute at an altitude of around 5,000 feet (1,524 meters).In order to deploy this chute successfully, he will have to slow to 172 mph (277 kph). He will have a reserve parachute that will open automatically if he loses consciousness at mach speeds.Even if everything goes as planned, it wont. Baumgartner still will free fall at a speed that would cause you and me to pass out, and no parachute is guaranteed to work higher than 25,000 feet (7,620 meters).cause there