l路缘石施工方案.doc

ocusing on ways and means of improving and upgrading work, further development of "three to split". (A) fully grasp "no unauthorised" created. The township "no unauthorised" created the existing building "one household, one document" survey and file storage work must be unconditional and full coverage. Main corridor leading to the town (road, river) village, the Central built-up area of the town on both sides must be to create a "no unauthorised village". According to "five hundred villages" created and shanty towns, villages, old houses, reconstruction of old plant, expand create, upgrading creates files, the real "no unauthorised village" created into the benefit of the people of very good thing. (B) to strictly manage count as unauthorised controls. Promoting the "new" control work to move the center of gravity, management measures to the front, and earnestly pipes effectively. A strict new unauthorised network responsibility. Sectors such as land, housing and basic stations (stations) and the Township of grid accountability mechanisms must be strictly in accordance with the new regulatory requirements, effective implementation of the area of responsibility of the new inspections, suppression, demolition work to ensure that the new "zero tolerance". Second, public security, water, electricity, water, oceans and fisheries, tourism collaboration, market supervision departments should strictly enforce the illegal construction of disposal of relevant provisions of the regulations, effective fulfilment of responsibilities, particularly in electricity and water supply, and other units may not be new illegal buildings to supply water and electricity supply. While more regulation to prevent personal privacy violations. Illicit trading in illegal construction in the Ministry of public security sector to strictly from the blow. Three is to create additional offence reporting system of incentives. According to building law and covers an area of nature, to report timely degree divided report grade, effective after the removal of certain incentives. (C) integrated implementation ", building demolition, modification, use" combination. Demolition is the means and purpose built is. To adhere to the building demolished, combination of construction and demolition waste, demolished with combined efforts to improve the scientific level of three to split; second, we must pay attention to "three to split" and "five hundred" and "five water treatment", "three of the four sides", the shackDistrict transformation, and dangerous old room transformation and "two road sides", series work organic combined up, active do River, and along demolition work, and manpower advance village in the, and old residential demolition work, to improved masses housing conditions and live environment; three to put "three modified a split" as traditional low, and small, and bulk industry structure transformation upgrade of important initiatives to caught, speed up advance industry Park, effective optimization park environment枝城长江大桥公路桥维修加固工程 路缘石施工方案枝城长江大桥公路桥维修加固工程 路缘石施工方案编 制： 复 核： 审 核： 中铁大桥局股份有限公司枝城长江大桥公路桥维修加固工程项目经理部二一三年九月二十四日目录一、总体施工组织布置及规划21.1 总则21.1.1编制范围21.1.2 编制依据21.1.3 编制原则21.2施工总体目标21.2.1 质量目标21.2.2 安全目标31.2.3 环境保护目标31.2.4 文明施工目标32.1 施工技术准备42.2 施工人员准备42.3 机械设备准备42.4 施工材料准备42.5场地准备5三、施工方案53.1总体施工方案53.2测量放线53.3钢筋加工及绑扎53.4模板安装及拆除63.5浇筑混凝土73.5.1浇筑准备工作73.5.2混凝土搅拌73.5.3混凝土运输73.5.4混凝土浇筑73.6养生8四、暑期、雨期施工8五、质量保证措施85.1模板工程85.2钢筋工程85.3混凝土工程9六、安全保证措施96.1施工用电安全措施96.2钢筋工程安全措施106.3模板工程10七、文明施工及环境保护措施10一、总体施工组织布置及规划1.1 总则1.1.1编制范围本施工组织设计编制范围为湖北枝城长江大桥公路桥维修加固工程标段主要施工内容：主桥路缘石施工。1.1.2 编制依据1）湖北枝城长江大桥公路桥维修加固工程施工招标文件2）湖北枝城长江大路公路桥维修加固工程施工招标招标文件补遗书3）公路工程国内招标文件范本（2009版）4）湖北枝城长江大桥公路桥维修加固工程施工图纸文件5）钢结构工程施工质量验收规范（B50205-200l）6）公路桥涵施工技术规范（JTG/TF50-2011）7）公路工程质量验收评定标准（JTG F801/1 004）1.1.3 编制原则1）响应和遵守招标文件的要求，内容涵盖我公司中标的全部工程。2）编制本着切实可行，安全可靠，经济合理，技术先进的原则。3）实施项目法管理，通过对人力、材料、机械等资源的合理配置，实现工程质量、安全、工期、成本及社会信誉的预期目标。4）严格遵守国家、建设部、交通部、铁道部颁发的相关设计、施工规范、技术规程和质量评定及验收标准。5）在工程建设的各个环节，积极应用桥梁建设的先进技术、成果，并针对工程难点组织技术攻关。6）强化精品意识，以“跨越天堑，超越自我”的企业精神为指导，注重工程质量，铸造精品工程。1.2施工总体目标对于全桥路缘石施工，上下游各1280米，全桥合计2560米，施工时采取南北、上下游4点同时施工。1.2.1 质量目标全部工程达到国家现行的工程质量验收标准并能满足针对本工程项目制定的有关质量验收标准的规定。交工验收质量标准合格，竣工验收质量标准优良，确保工程成为宜昌市、湖北省、交通部优质工程。1.2.2 安全目标全面贯彻“安全第一，预防为主”的安全生产管理方针，实现“三无，一杜绝，一创建”即无重伤、船损、火灾事故、杜绝伤亡事故，创建省、市安全文明工地的安全管理目标。1.2.3 环境保护目标严格遵守国家及当地政府有关环境保护、法律法规及业主的环境保护规定，噪声、粉尘不超过国家规定的三级标准，废气、废水（液），废弃物按规定处理。保护生态环境，防止水土流失，并避免当地及长江环境受到污染，杜绝环境污染事故。1.2.4 文明施工目标按业主要求进行工地建设，确保施工现场环境整洁、纪律严明、设备完好、物流有序，创市级、省级文明施工样板工地。二、施工准备工作2.1 施工技术准备钢筋绑扎、混凝土配合比及品质经试验检验合格，各种材料经检验合格，施工测量放线完成并复核，图纸理解优化。施工方案已经进行审核，对各施工队已进行施工技术和施工安全的交底。2.2 施工人员准备工区负责人：朱永亮 彭泽伟现场技术员：余乐 周俊俊 刘忠 李瑞 安质环保负责人：朱永亮测量负责人：任勇 试验负责人：严哲 混凝土浇筑班组：20人其他人员：5人2.3 机械设备准备表2-1机械设备表序号设备及型号数量1混凝土搅拌车4台2商品混凝土站2个3插入式振捣泵8台4水泵4台5抹光机4台6电焊机8台7切断机2台8弯曲机2台2.4 施工材料准备C30混凝土共计153.6m3，根据现场施工进度安排，提前通知商品混凝土站预备好充足的原材料。混凝土采用商品混凝土，南岸为宜都利华商品混凝土拌和站、北岸为枝江安顺达混凝土拌和站。均与其签署混凝土供应协议。12钢筋共计9064.0kg、10钢筋共计7152.0kg，根据现场施工进度，提前准备充足的钢筋原材料进场，钢筋按9米标准长度进货后，在板场内进行加工及安装。依据钢铁行业规范条件(2012年修订)要求，本项目钢筋均需更改为HRB400钢筋。模板采用木模，根据现场施工进度安排，南北、上下游4点各备足满足100米的模板用量。2.5场地准备钢筋加工分别在南北岸梁场进行。南、北两岸桥面板架设已完成1/4，为路缘石施工提供了施工作业区。三、施工方案3.1总体施工方案路缘石浇筑采取四点同时施工，每点每次浇筑100米，脱模后进行下一阶段的浇筑。工艺流程：测量放线钢筋加工及绑扎模板安装及拆除浇筑混凝土拆模养生。3.2测量放线由测量人员根据钢桥面板制点放出路缘石的外轮廓线和模板的检查线。图3-1 路缘石边界线3.3钢筋加工及绑扎1）钢筋的种类、型号及规格尺寸应符合设计要求，箍筋采用10 HRB400钢筋，纵向钢筋采用12 HRB400钢筋。钢筋加工前均有技术人员进行核查，核查符合设计要求时方可进行加工。2）钢筋加工分别在南北岸梁场进行，加工好后运至现场根据设计图纸和测量放线位置进行钢筋绑扎。绑扎时先将底部纵向钢筋调整好位置，并与箍筋绑扎。N3隔板上应设置预留孔，方便N2钢筋穿过。调整好箍筋位置并与顶部纵向钢筋进行绑扎。钢筋的交叉点全部采用直径为1.0mm的铁丝扎牢。箍筋和主筋保持垂直，绑扎钢筋的铁丝丝头不应进入混凝土保护层内。保护层厚度不小于30mm,钢筋构造图如图3-1所示.图3-2 钢筋构造图3）对于绑扎后的钢筋进行质量验收，其验收标准如表3-1所示：表3-1钢筋绑扎质量验收标准：项目允许偏差（mm）受力筋同排间距±5钢筋骨架尺寸长±10宽、高±5焊接骨架质量±53.4模板安装及拆除1）路缘石模板采用现场制作的竹胶板模板。根据施工进度安排，本工程路缘石每点制作了100m竹胶板模板，4点合计400m。采用现场制作的方木作为模板背带。端头和伸缩缝处采用端头板合模。每10m设置钢筋作为支架固定模板。2）根据设计图纸和测量放线位置支设模板。模板底部的梁板面应先用同等级强度水泥砂浆摸带找平。立模位置及高程符合设计要求，并应支撑准确牢固、接头紧密平顺，无离缝。模板接头、模板与基层接触处不得漏浆，模板与混凝土接触面应涂色拉油或菜籽油。 3）模板拆除应在混凝土抗压强度达到2.5MPa，且能保证其表面及棱角不致因拆模而受损害时进行。3.5浇筑混凝土3.5.1浇筑准备工作1）原材料准备混凝土原材料均应符合现行国家和行业标准的规定，并应在进场时对其性能和质量进行检验。混凝土拌和站根据我方提前提供的混凝土浇筑计划备料。2）混凝土配比南岸、北岸混凝土配比均按葛洲坝出具的推荐配比。混凝土坍落度到现场时按16-18cm控制。混凝土初凝时间控制在4-6h。3）现场准备桥面板钢筋、模板已经安装完毕经检验合格。桥面板清理干净，无杂物及灰尘。浇筑标高位置已经放样。现场各种机械设备已安装调试完成。防雨的措施已经准备到位。3.5.2混凝土搅拌搅拌是保证混凝土基体内均匀分布的重要环节，因此在搅拌过程中一定要注意，搅拌机因超负而停止运转、出料、堵塞的现象。在施工中应保证混凝土搅拌均匀，并注意在拌合后检测拌合物的各项指标。3.5.3混凝土运输为了减少运输过程中水分的蒸发和砼的离析，运输采用混凝土搅拌车运输，由于夏季气温较高要适当控制运输时间，给施工留下足够的操作时间。运输时间与浇筑时间之和不能超过混凝土的初凝时间。混凝土运输途中应以2-4r/min的慢速进行搅动，卸料前应以常速再次搅拌。混凝土运至浇筑地点后发生离析、泌水或坍落度不符合要求时，应进行二次搅拌，二次搅拌时不宜任意加水，确有必要时，可同时加水、相应的胶凝材料和外加剂并保持其原水胶比不变；二次搅拌扔不符合要求时，则不得使用。3.5.4混凝土浇筑1）混凝土采用罐车运输，运输至桥面上可直接由罐车注入模内。2）混凝土的振捣必须采用插入式振捣器进行。振捣顺序为先插后平。振捣器振捣时间以拌和物停止下沉，水泥浆均匀液化并且无明显气泡冒出为止，不宜过振。振捣过程中，振捣器严禁碰到模板3）振捣完成后对模板顶面混凝土进行抹面施工。4）夏季温度较高，混凝土入模温度不宜高于28，应避免模板和新浇混凝土受阳光直射，模板与钢筋温度以及周围温度不宜超过40。5）在搅拌地点和浇筑地点分别取样检测凝土拌和物的坍落度，随机制取用于检查混凝土的强度的试件。3.6养生1）混凝土浇筑完成后要防止阳光暴晒，防止收缩裂缝的出现。当表面已有相当硬度后，用手指轻压不出现痕迹时即可开始养生，洒水后立即用塑料薄膜覆盖。每天洒水数次，使其保持潮湿状态。2）洒水养生应安排专人负责，养护时间不应少于7d。3）护栏拆模后，模板下抹的砂浆应及时剔除，清理干净。四、暑期、雨期施工1）暑期施工混凝土浇筑温度应控制在32以下，宜选在一天温度较底的时间内进行。2）施工材料的码放应采取防雨、防潮措施，尤其是钢模板。3）露天的电器设备要有可靠的防触电、漏电措施。五、质量保证措施5.1模板工程1）模板进场后，安装前组织项目部技术、质量人员进行试拼装，对模板进行刚度、强度、几何尺寸等综合检查。 2）模板安装前要求满涂隔离剂，安装后重点检查模板的几何尺寸、平整度、拼缝严密、整体牢固。 3) 埋件安装：由技术员根据设计图纸统计并进行专项技术交底、施工员安排施工、质量员检查验收，确保埋件安装做到不漏、位置准确、安装牢固。5.2钢筋工程1）钢筋翻样工作由项目部员工进行，对钢筋焊接工作由技术好有上岗证的员工进行。按规定进行检测，做好专项技术交底，并进行施焊过程的监控记录。 2）加工好的钢筋按规格、部位进行标识、堆放3) 钢筋绑扎前应按设计文件要求进行放线标记。钢筋绑扎要牢固，边缘两排交叉点全部绑扎，中间隔一绑一，绑丝头一律朝向砼里侧。钢筋绑扎缺扣、松扣率小于10%。5.3混凝土工程1）砼浇筑前，对所有参加砼施工的全体人员进行书面质量、技术交底工作。落实岗位责任制、分块负责。并派项目部有经验有责任心的工人实施振捣监督。施工时定专人负责模板、钢筋检查工作。2）浇筑砼前，项目技术、质量人员对模板、钢筋、预埋件、进行综合检查。自检合格后报请监理工程师验收。3）砼浇筑后要及时进行养护，养护时间不少于7天。项目部设专人负责养护监督工作。4）根据工程部位及要求，留置足够量的同条件试件。5) 浇筑混凝土前，应对模板、支撑全面检查，木楔如有松动必须全部打紧。6）混凝土表面平整，施工缝平顺。构件外型轮廓清晰，线条直顺，不得有翘曲现象。六、安全保证措施安全生产目标：无责任死亡事故，无水上事故，无重大机械事故，无结构垮塌事故，无火灾事故、无重伤事故，轻伤事故率2。安全生产方针：安全第一，预防为主，综合治理。6.1施工用电安全措施1）所有电闸箱必须有门有锁，有防漏盖板，有危险标志，所有用电设备的金属外壳全部与保护零线相连接。2）建立安全生产岗位责任制，实行谁主管生产谁负责安全的原则。根据工作实际，按不同岗位定期开展安全活动和定期进行安全教育。施工管理人员和班组长在每天作业前坚持对工人进行岗前作业安全技术交底。3）严格遵守“安全操作规程”，特种作业人员必须持证上岗，做到管理人员不违章指挥，作业人员不违章操作，工人不违反劳动纪律。4）认真贯彻执行建设工程施工现场供电安全规程，所有电闸箱必须有门有琐，有防漏盖板、有危险标志、有接零保护，现场实行“三相五线制”和“一机一闸一保护”。5）施工现场实行“三级控制”分级配电系统，即：总配电箱（柜）分配电箱开关箱，总配电箱可不装置漏电保护器，分配电箱和开关箱必须设漏电保护器，即二级保护。6）电气设备的电源线中间不得有接头，其金属外壳必须做良好的保护接零，对产生振动的电气设备其保护接零不得少于二处。6.2钢筋工程安全措施1）钢筋制作场地应清理干净，防止作业时将人拌到或钢筋头扎伤人。2）特殊工种人员必须持证上岗，严禁替代工作，电操工必须配戴绝缘鞋和绝缘手套。3）严禁带病或酒后作业。4）钢筋弯曲机、电焊机、切断机、卷扬机的线路必须绝缘良好，严禁电缆与金属物和钢筋绑或挂在一起。5）各种电器设备必须有防雨措施，防止机械进水漏电。机操人员必须作到人离机停。6）制作好的钢筋在运输过程中应遵循交通规则，避免与过往车辆发生碰撞。7）钢筋临时摆放时，应避开车道及人行道，避免发生事故。8）钢筋绑扎要牢固，要将扎丝端头弯曲插入钢筋骨架内，防止挂伤人。架立筋在没有焊接牢固前，严禁以上层网片为承力点进行别的工序的施工。6.3模板工程1）模板支立前要先将场地清理干净，防止作业时将人绊倒或钉子扎脚。2）搬运模板的人员，前后动作要协调。多人作业要听从统一指挥。3）支立模板时，要先将立起的模板固定好，防止倾倒伤人。七、文明施工及环境保护措施1）加强精神文明建设，提高职工的思想、政治素质和业务素质，共创良好的企业形象；施工期间，挡板、彩旗及时悬挂。2）现场施工人员必须佩戴胸卡，并加强民工施工队的管理和法制教育工作，作业期间不得有不文明的行为，严禁违法乱纪行为。3）施工期间要经常主动地与施工现场附近的居民联系沟通思想、增进感情、争取各界的理解和支持。认真接受和处理公众投诉，做好必要的解释工作，尽快解决问题。4）工地施工负责人为文明施工和安全生产第一负责人，并指定专人负责日常工作，宣传并检查落实文明施工和安全生产的具体要求。积极开展文明施工窗口达标活动，做到施工中无重大工伤事故；施工现场周围道路平整无积水。5）严格按规范施工对施工便道经常洒水，防止尘土飞扬并做好施工用水的处理工作。施工现场要符合环境卫生、市容、安全保卫等各种要求，做到整齐、清洁、安全、美观。accurate to 0.0001g. Sample preparation: samples should be fully mixed. Sample volume: based on estimates of ash components, rapid sampling 210G, accurate to 0.0001g, the sample is distributed evenly within the Crucible, avoid compacting. This standard applies to ash not more than 2% of starch and modified starch, hydrolysis does not apply to products, starch, oxidized and chlorine content greater than 0.2% (sodium chloride) for samples. Pre-ash: Watch the Crucible (as placed on ashing furnace or heating plates, Bunsen burner) until the samples completely carbonized. Combustion will produce volatile substances to avoid spontaneous combustion, spontaneous combustion can spilled from the crucible of the sample and cause losses. Incineration: once the flame goes out, instantly putting Crucible into the furnace, temperature rises to 900 c and maintain this temperature until all the remaining carbon is gone, General 1h is sufficient. And the Crucible and the residue into the dryer to cool to room temperature, and weighing, accurate to 0.000lg. Into the crucible of dryer should not exceed four at a time. Determination of number: the same sample to do the second rinse. 4, representation of results of calculation method for ash samples to original weight of residue weight of sample weight expressed as a percentage, as the ASH sample weight of residue weight of sample dry weight percentages were recorded in the formula: X1-sample ash,%; X2-sample ash content (dry basis), respectively; M 0-the original weight of the sample, g; M1-weight after ashing residue g; The moisture content of the sample. Such as poor meets the requirements, take the arithmetic mean ofand improve idle land of utilization, real achieved environment improved and productivity development mutual promoting total win. Five, firmly implement, promoting work ahead, to create highlights. Third deployment, implementation of seven, then it is imperative to strengthen responsibility and improve the mechanisms and implementation. All localities and departments must be convinced that goals, going all out, mustering spirit, work together to ensure that this year's objectives carry out tasks, at the forefront. First, we must strengthen the leadership to implement. Departments at all levels should always work and rural "five water treatment", "three to split" in an important position, and carry the main responsibility, main leader personally, leaders arrested and layers of responsibility rank transmission pressure established hierarchical accountability, and work together to promote the work of the mechanism, a concerted effort pay attention to implementation. County nongban, flood, three to one down to further play a leading catch total, integrated and coordinated role of all kinds is "long", "Sheriff" "Inspector" to effectively fulfill their responsibilities, formed the alignment on the fire line and management a lively situation. Second, we must strengthen the test implementation of the Governor. Role play the Governor got the baton, for agricultural and rural focus and "five water treatment", "three to split" work, refine improve assessment methods and evaluation system, accurate assessment. Combined with "dare play, tree benchmark" style building five major operations, carry on and gain firsthand experience of supervision, in particular, to strengthen the focus on the "long" signs "go left", "names" such as supervision, urged all levels longer on duty in place. Through the supervisory assessment, to promote habits, stimulating power. Third, we must strengthen implementation style. Departments at all levels to work in rural areas and "five water treatment", "three to split" as training cadres for major platforms, compete against large examination room, inspection cadres work performance of the ring, water control and the Japanese pulled a workout, training, discovery and selection of cadres. Than good catch up, first to excellence-oriented. Party members and cadres at all levels must adhere to the rural, water control and the Japanese pulled a grass-roots, "put down the shelf, leaned" pragmatic style, the spirit of play, become a benchmark model. Four, we must strengthen propaganda implementation. Comprehensive utilization of micro-credit, micro-blogging, new media, mining, summarizing, good publicity work in the countryside and "five water treatment", "three to split" advanced models, point to gather positive energy for the community to see the results of our work in time, increase public awareness, participation rates, satisfaction and support. Play gongqingfu, a mass organization and grass-roots such as schools, communityThe role of13