墩顶连续段、湿接缝施工技术方案.doc

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1、【精品文档】如有侵权，请联系网站删除，仅供学习与交流墩顶连续段、湿接缝施工技术方案.精品文档.现浇连续段、湿接缝施工技术方案一、工程概况盘道沟大桥中心桩号为K120+880，8-30m，设计交角为90，桥梁全长240m；上部采用预应力T梁，先简支后连续；下部结构采用柱式墩、肋板台，钻孔灌注桩基础 。全桥墩顶连续段共有12道，湿接缝64道。二、工期及人员安排1、工期安排 现浇段、湿接缝施工工期计划为30天，其中前期准备1天，施工期28天，后续收尾1天。2、人员安排承台施工共安排人员25人，其中现场技术负责人1名，测量人员1名，结构施工人员23人。三、施工方案1、施工顺序T梁墩顶连续以联为单位施工

2、，应先浇筑中间墩顶混凝土，完成张拉后对称浇筑两侧墩顶混凝土，张拉某一墩顶连续段纵向钢束前现浇段处纵向连接钢筋、钢板焊接应左右、上下对称进行。2、钢筋加工进场钢筋必须具备质保单，及时完成材料的报检工作，未经检验合格的钢筋一律不得使用。钢筋进场后在指定地点堆放整齐，下垫上盖，防止锈蚀。钢筋制作在钢筋加工场调直、下料，现场焊接，钢筋的尺寸严格图纸进行制作，钢筋的搭接长度双面焊不小于5d，单面焊不小于10d，焊缝要求饱满、平整、无砂眼、无焊皮，焊条采用T502、506型。纵向连接钢板的焊缝长度必须达到设计要求。钢筋绑扎前，T梁梁段预留钢筋必须调直、除锈，需要焊接的焊缝必须满足设计要求，对锚头进一步清理

3、检查，清除压浆后留下的残液和松散混凝土块。梁端凿毛、锚头清理申请现场监理工程师检验合格方可进行钢筋施工。3. 模板安装T梁连续模板采用小型钢模和木模板施工，模板安装前应均匀涂刷脱模剂，钢筋、模板工艺应申请现场监理检验合格后方可进入下道工序施工。4. 砼浇注T梁连续段一次浇筑成型，模板安装就位后，吹洗模板内污物，底部不准有集水，经自检合格后再由监理工程师复查，合格后即可浇筑混凝土。砼在拌和站统一拌和，拌和砼用各种原材料必须经监理工程师检验合格后方可进场，严格按监理工程师已批复的配合比进行拌和，控制入模坍落度在5.57cm，浇筑混凝土时采用插入式振捣器振捣，分层振捣。分层厚度控制在30cm左右，用

4、插入式振动棒振捣，棒头距模板间距不大于10cm，棒间距30cm，插入下层砼5cm，使上下密切接合。严禁振动钢筋。振动棒应垂直快插慢拔徐徐提出，准确掌握振捣时间，做到既不弱振，又不过振，更不可漏振，确保混凝土振捣密实。砼密实的标志是：砼停止下沉，不再冒出气泡，表面呈现平坦、泛浆。当砼浇注快结束前，砼应逐步减少坍落，避免形成表面砂浆厚度大，影响质量。横隔板浇筑完毕、到达拆模强度厚即可拆模浇筑翼缘板，翼缘板浇筑完毕后应注意多次抹压防止裂纹产生，按规范要求的强度进行拉毛处理。浇注砼期间对模板、等进行检查，发现问题及时处理。混凝土采用HZ60型拌合站拌合，用混凝土搅拌运输车运至施工现场。根据现场条件，混

5、凝土采用吊机或小型电动门架上桥。浇筑前应加强对混凝土质量的检测，不合格的予以退回，不得强行使用。浇注过程中对模板实行监测，防止出现变形漏浆的情况。混凝土浇筑应保证浇筑质量及外观要求，即达到外光内实。5. 混凝土的养生混凝土浇筑完成后，应注意养生，防止出现收缩裂纹。四、质量方针及保证措施（一）、质量目标开工必优，一次成优，合格率100%，优良率95%以上。创全线优质样板工程。（二）、保证措施1、健全质量保证体系，严格质量管理制度，做到优必奖，劣必罚。2、推行ISO9000族系列国际标准，按编制的质量管理手册做好各项工程的质量工作。推行全面质量管理，实行项目分解及目标管理。加强对“QC”小组的领导

6、，对重大技术问题组织“QC”小组攻关，并强化施工与科研相结合，积极推广新技术、新工艺、新材料。3、严格施工前的技术交底，对作业人员定期进行质量教育和考核，教育作业队人员应严格按设计及规范要求施工，确保工程质量。4、严格控制施工工序，上道工序不合格决不进行下道工序，严格执行“三检”制度，即施工队自检、技术复检、监理工程师检查，对于特别工序实行岗位责任制，使每个过程均受控。5、规范化管理，是保证质量的有效手段，坚持作业人员持证上岗制，工地作业人员持牌制，质量“三检制”：自检、互检、专检。质量“三工序”制：检查上道工序质量，保证本道工序质量，创造或提供为下道工序的质量条件。6、实行工程质量持牌管理，

7、增强施工人员责任感。将工程规模，开工日期，质量目标，岗位负责人一一明示，以利于增强透明度和责任感。7、严把原材料采购、进场、使用、检验关。（1）进场材料必须有出厂合格证及质量保证书，无合格证的材料不行进入工地。（2）每批进场的水泥要提供供货抄件，说明厂名、水泥品种，标号、数量和出厂日期，并要提供出厂合核证及试验报告。每批水泥进场后，要对水泥作抽样检查试验，如试验不合格，严禁使用。（3）细骨料应按规定作筛分试验，符合要求再使用，并且不得含团块、软质或针片状颗粒、粗骨料必须作筛分和强度试验，符合要求后才能使用。（4）砼及砂浆拌合用水，必须进行有害物质化学分析，水质化验符合要求，方可使用。（5）运到

8、工地的每批钢筋都必须抽样试验。试验按国家标准或工程师同意的试验规程进行，包括强度、伸长率和弯曲试验。试验必须符合要求，若不符合要求，不得使用或经试验后降级使用。8、灌注砼应在无雨天施工，若施工中遇到大雨要马上覆盖已灌注的砼，以保证砼灌注质量。若气温较高时，要对灌注完成的砼表面以草帘覆盖并洒水保持其湿润来进行养生，养生期一般不得少于7天。9、施工资料与施工进度同步，做到工完，资料清，实事求是。10、砼振捣在钢筋密集的地方要振捣充分，保证砼密实。强度未达到规范规定的强度不得承重或拆模。11、服从业主，尊重监理。五、安全目标及措施（一）、安全目标无任何伤亡及机械事故。（二）、安全措施1、抓生产，首先

9、抓安全，建立安全保证体系，严格安全管理制度，做到违规必纠，有章可依。2、对安全生产的有关规定，利用各种宣传工具，采取多种形式，教育职工树立安全第一的观念，强化全员安全意识。3、落实承包责任制，单位第一管理者对本单位安全生产全面负责，职权明确，责任到人。把安全生产与每位职工的切身利益挂起钩来，对安全生产中作出突出贡献的人员进行重奖。4、安全第一、预防为主，必须配备足够的防护用品，加强劳动保护。根据国家、部、局有关文件，开展好“百日安全无事故”、“安全月”等活动。坚持周一安全讲话，班前安全讲话，周末安全检查， 设立安全监督岗，发现问题及时处理。5、所有临时结构必须进行安全技术交底，使操作人员明白操

10、作要领，熟悉各个环节。大型结构必须进行安全鉴定，鉴定验收合格后方可投入使用。大型设备进场前对机械运转、便道进行保养和调查，确保安全。6、各种施工机械必须有安全操作牌，使所有操作人员能按安全操作规程操作。定期进行安全大检查，检查出来的事故隐患要书面通知作业班组，并及时消除隐患。7、按照“三不放过”的原则处理所发生的事故，使职工吸取事故教训，防止类似事故再发生，对新工人进行三级教育”，特种作业人员必须进行专门培训，合格后发证，严禁无证上岗。8、进入工地必须戴安全帽，高空作业必须系安全带。做好工地用电管理，电器开关必须设防雨棚，配触电保护器。卷扬机提升时设联系信号，由专人指挥，严禁违章指挥、违章作业

11、。9、所有支架及提升设备须经检算和验收后方可使用。10、严格遵守公路交通制度，跨公路施工设施工标志。六、文明施工及环境保护措施1、建立健全管理组织机构。工地成立以项目经理为组长，各部长和生产班组为成员的文明施工和环保管理组织机构。2、强教育宣传工作，提高全体职工的文明施工和环保意识。3、制定各项规章制度，并加强检查和监督。4、合理布置施工场地，合理定置各种施工设施。5、挖基土用自卸汽车车集中外运到指定地点。6、减少施工中的噪声和振动，不扰民，对现场的便道经常洒水，以减少粉尘。（英文版 ） Two regulations promulgated for implementation is in

12、the party in power for a long time and the rule of law conditions, the implementation of comprehensive strictly strategic plan, implementation in accordance with the rules and discipline to manage the party, strengthen inner-party supervision of major initiatives. The two regulations supporting each

13、 other, the adhere to a positive advocate, focusing on morality is of Party members and Party leading cadres can see, enough to get a high standard; around the party discipline, disciplinary ruler requirements, listed as negative list, focusing on vertical gauge, draw the party organizations and Par

14、ty members do not touch the bottom line . Here, the main from four square face two party rules of interpretation: the first part introduces two party Revised regulations the necessity and the revision process; the second part is the interpretation of the two fundamental principles of the revision of

15、 laws and regulations in the party; the third part introduces two party regulations modified the main changes and needs to grasp several key problems; the fourth part on how to grasp the implementation of the two regulations of the party. and revised the necessity and revised history of the CPC Cent

16、ral Committee the amendment to the Chinese Communist Party members and leading cadres honest politics several guidelines and column 1 by 2015 to strengthen party laws and regulations focus. Two party regulations revision work lasted a Years, pooling the wisdom of the whole party, ideological consens

17、us, draw historical experience, respect for the wisdom of our predecessors, which reflects the unity of inheritance and innovation; follow the correct direction, grasp the limited goals, adhere to the partys leadership, to solve the masses of the people reflect a focus on the problem. The new revisi

18、on of the and , reflects the partys 18 and the eighth session of the third, the spirit of the fourth plenary session, reflecting the experience of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the partys eighteen years comprehensive strictly practice

19、. (a) revised two regulations of the party need of in based on revised, the promulgation and implementation of January 2010, to strengthen the construction of the contingent of leading cadres play an important role. But with the party to manage the party strictly administering the deepening, has not

20、 been able to fully meet the actual needs. Content is too complicated, eight prohibition, 52 are not allowed to hard to remember, and also difficult to put into practice; the second is concisely positive advocated by the lack of prohibited provisions excessive, no autonomy requirements; the third is

21、 banned terms and discipline law, both with the party discipline, disciplinary regulations repeat and Criminal law and other laws and regulations repeat; the fourth is to clean the theme is not prominent, not for the existing problems, and is narrow, only needle of county-level leading cadres above.

22、 is in 1997 based on revision, in December 2003 the promulgation and implementation, to strengthen the construction of the party play very important role. Along with the development of the situation, which many provisions have been unable to fully meet the comprehensive strictly administering the pr

23、actice needs. One is Ji law, more than half of the provisions and criminal law and other countries laws and regulations Repetition; two is the political discipline regulations is not prominent, not specific, for violation of the party constitution, damage the authority of Party Constitution of misco

24、nduct lack necessary and serious responsibility to pursue; third is the main discipline for the leading cadres, does not cover all Party members. Based on the above situation, need to and the two is likely to be more relevant regulations first amendment. By revising, really put the authority of Part

25、y discipline, the seriousness in the party tree and call up the majority of Party members and cadres of the party constitution of party compasses party consciousness. (II) two party regulations revision process the Central Committee of the Communist Party of China attaches great importance to two re

26、gulations revision . Xi Jinping, general books recorded in the Fifth Plenary Session of the eighth session of the Central Commission for Discipline Inspection, on the revised regulations made clear instructions. According to the central deployment, the Central Commission for Discipline Inspection fr

27、om 2014 under six months begin study two regulations revision. The Standing Committee of the Central Commission for Discipline Inspection 4 review revised. Comrade Wang Qishan 14 times held a special meeting to study two regulations revision, amendment clarifies the direction, major issues of princi

28、ple, path and target, respectively held a forum will listen to part of the province (area) secretary of the Party committee, Secretary of the Discipline Inspection Commission, part of the central ministries and state organs Department The first party committee is mainly responsible for people, views

29、 of experts and scholars and grassroots party organizations and Party members. Approved by the Central Committee of the Communist Party of China, on 7 September 2015, the general office of the Central Committee of the Party issued a notice to solicit the provinces (autonomous regions, municipalities

30、) Party, the central ministries and commissions, state ministries and commissions of the Party (party), the General Political Department of the military, every 3 people organization of Party of two regulations revision opinion. Central Commission for Discipline Inspection of extensive solicitation o

31、f opinions, careful study, attracting, formed a revised sent reviewers. In October 8 and October 12, Central Committee Political Bureau Standing Committee and the Political Bureau of the Central Committee After consideration of the two regulations revised draft. On October 18, the Central Committee

32、of the Communist Party of China formally issued two regulations. Can say, two laws amendment concentrated the wisdom of the whole party, embodies the party. Second, and revision of the basic principles of two party regulations revision work and implement the partys eighteen, ten eight plenary, the s

33、pirit of the Fourth Plenary Session of the Eleventh Central Committee and General Secretary Xi Jinping important instructions on the revised and , highlighting the ruling party characteristics, serious discipline, the discipline quite in front of the law, based on the current, a long-term, advance a

34、s a whole, with Bu Xiuding independent and . Main principle is: first, adhere to the party constitution to follow. The constitution about discipline and self-discipline required specific, awaken the party constitution of party compasses party consciousness, maintaining the authority of the constitut

35、ion. General Secretary Xi Jinping pointed out that no rules, no side round. Party constitution is the fundamental law, the party must follow the general rules. In early 2015 held the eighth session of the Central Commission for Discipline Inspection Fifth Plenary Session of the 16th Central Committe

36、e, Xi Jinping again pointed out that constitution is the party must follow the general rules, but also the general rules. the revision of the and is Method in adhere to the regulations established for the purpose of combining rule of virtue is to adhere to the party constitution as a fundamental to

37、follow, the constitution authority set up, wake up the party constitution and party rules the sense of discipline, the party constitution about discipline and self-discipline specific requirements. 4 second is to adhere to in accordance with the regulations governing the party and the party. The Par

38、ty of rule of virtue de, mainly refers to the partys ideals and beliefs, excellent traditional style. The revised the closely linked to the self-discipline, insisting on the positive initiative, for all members, highlight the vital few, emphasized self-discipline, focusing on the morality, and the m

39、ajority of Party members and the ideological and moral standards. The revised Ji method separately, Ji, Ji Yan to Method, as a negative list, emphasizing the heteronomy, focusing on vertical gauge. Is this one high and one low, a positive reaction, the strict party discipline and practice results tr

40、ansformation for the integration of the whole party to observe moral and discipline requirements, for the majority of Party members and cadres provides benchmarking and ruler. Third, insist on to. In view of the problems existing in the party at the present stage, the main problems of Party members

41、and cadres in the aspect of self-discipline and abide by the discipline to make clearly defined, especially the partys eighteen years strict political discipline and political rules, organization and discipline and to implement the central eight provisions of the spirit against the four winds and ot

42、her requirements into Disciplinary provisions. Not one pace reachs the designated position, focusing on in line with reality, pragmatic and effective. After the revision of major changes, major changes in the and modified and needs to grasp several key problems (a) adhere to according to regulations

43、 governing the party and party with morals in combination, for at the present stage, the leadership of the party members and cadres and Party members in existing main problems of self-discipline, put forward principles, requirements and specifications, showing Communists noble moral pursuit, reflect

44、ed at all times and in all over the world ethics from high from low 5 common requirements. One is closely linked to the self-discipline, removal and no direct relation to the provisions of . the second is adhere to a positive advocate, eight prohibition 52 are not allowed to about the content of the

45、 negative list moved into synchronization amendment . Three is for all the party members, will apply object from the leadership of the party members and cadres to expand to all Party members, fully embodies the comprehensive strictly required. The fourth is prominent key minority, seize the leadersh

46、ip of the party members and cadres is the key, and put forward higher requirements than the ordinary Party members. Five is to simplify, and strive to achieve concise, easy to understand, easy to remember. The revised is the ruling Party since the first insists on a positive advocate forAll Party me

47、mbers and the self-discipline norms, moral declaration issued to all members of the party and the National Peoples solemn commitment. criterion of a clean and honest administration consists of 4 parts, 18, more than 3600 words. After the revision of the , a total of eight, 281 words, including lead, specification and Party member cadre clean fingered self-discipline norms, etc. Part 3 members low-cost clean and self-discipline, th