ee墩身盖梁施工方案.doc

yuan, an increase of 17.5%; local government general budget revenue of 500 million Yuan, . Painting, model culture creates new Ma Church community, creating Lake scenic spot culture education base, received high evaluation from provincial and municipal discipline Inspection Commission, the people's daily special report. Constantly promote independent Commission against corruption culture construction to rural extends, created established Dahlin rural industry Park independent Commission against corruption culture positions, formed has a support "service low double excellent" of members lead team, constantly perfect and established Park funds assets management, and village audit supervision, and villagers democratic financial, system, strengthening Park party, and Chief, and financial, full public, powerful to guarantees has new rural construction, by city rural style clean government inspection unit led of height evaluation. Through the implementation of honest and clean government cultural construction, and effectively educate the broad masses of party members and cadres and consciously regulated behavior and discipline, honesty in politics and culture to create a good atmosphere and fresh development environment. Although we in implement implementation independent Commission against corruption guidelines aspects made has must effectiveness, but away from superior of requirements also exists must of distance, main performance for: a is system enough sound, education, and supervision, and prevention, and punishment, aspects long-term mechanism also enough perfect, especially in enrollment bid work regulatory aspects also needed strengthening; II is regulatory supervision exists lost of Yu wide, and lost of Yu soft, investigation illegal disciplinary case of efforts also needed strengthening, individual sector and cadres also different degree exists treat gift, not to benefits not do, and mess do of phenomenon; Three for honest work is the new situations and new problems in finding timely enough, treatment measures are not strong enough. To solve these problems, we will proceed from the following five aspects of rectification, make sure to implement the provisions of the code. (A) deepening the learning, enhance the consciousness of honesty in politics. To create event as an opportunity to Excel and learning party, further increasing the governance capability and advanced construction, reinforced rules of the broad masses of party members and cadres awareness, sense of responsibility, sense of honor, improve working ability and level of scientific development. Should make full use of meetings, in particular central group learning opportunity, further strengthening the study and education of the code, the intensive warning education, education the majority of party members and cadres known fear, knew fear, honesty in politics of tension the strings, consciousness and enhancing the implementation of the initiative. Also, pay attention to apply what they have learned, consciously study results into planning work, new ideas,重庆千厮门嘉陵江大桥工程 辅助墩及C/D匝道墩身盖梁施工专项方案千厮门嘉陵江大桥工程墩身盖梁施工专项方案中交二航局重庆千厮门大桥项目经理部2012年5月墩身盖梁施工专项方案编号：FA-QSM0xx编制 审核 审批 new measures to promote work, the courage to take responsibility, dare to break hard to ensure district, Government decisions and arrangements to implement. (B) strengthening supervision, severely punish acts of violation. One is to open the channels of supervision. Vigorously promote the party affairs public, open, widely accepted supervision by the masses, pay attention to social groups and public opinion supervision, the powerful force formed to urge party members and leading cadres properly exercise their powers. Second, strong supervision and inspection. Democratic life into full play, important briefings, reports related to personal matters and evaluation of cadres ' study of inner-party supervisory system, a comprehensive grasp of guidelines for the implementation of the independent Commission against corruption-related cases of leading cadres of party members, focus on strengthening key areas of project selection, funding, officials monitor, detect and rectify the problem, promote honesty in politics. Third, strengthen disciplinary investigation. Seriously the implementation of JI .Recently, the County leading bodies at the county level to carry out "three trees" practice, which is to improve the governing ability and promoting the development of XX effective measure. I carefully follow your deployment requirements, and actively participate in the "three trees" campaign. Read Group, prepared by the Department in the near future of the ideological and political construction of leading cadres in the city reader, read the relevant information, larger harvest, inspired. I think the ability of repelling is to strengthen the party's governing capacity in questions of the construction of meaning, an important topic remains in front of party members and cadres at all levels, we need to further explore and ponder. The ability of repelling the name suggests, is asking party members and cadres at all levels in particular, leading cadres at all levels, not only ourselves, establish a correct concept of the independent Commission against corruption, political integrity, self-discipline, rejection of corruption, made for the people, pragmatic, honest leadership, and strengthen the sense of responsibility, earnestly implement the responsibility of uncorrupted, implementation of the baolian anti-corruption measures to ensure the realization of business-building, construction of a win-win situation. Next, I combined with their thinking, experience and contact XX practical, on how to enhance the ability of repelling, on four aspects of cognition. Irregularities, please comment. First, the construction of the propulsion system, and enhance the system of corruption since the founding of our party, have been thinking about tackling corruption. Currently, democratic legal system, management system and supervision mechanism is not perfect, administrative acts are not very standardized, Enterprise behavior and market behavior, corruption presents a diverse, pluralistic, complex trends, this shift the struggle between the two, will accompany47中交第二航务工程局 目录一、编制依据1二、工程概述12.1、概述12.1.1 工程地理位置12.1.2 工程范围及工程规模22.1.3自然条件32.1.4 工程地质42.2、施工平面布置52.3、主要施工方法62.3.1 关键施工工序及施工难点62.3.2 墩身及盖梁施工顺序及模板配套62.4、主要施工设备8三、墩身施工93.1、测量放线103.2、施工脚手架及爬梯搭设103.2.1 灯笼梯及安全操作平台施工103.2.2脚手管外架施工123.3、 施工缝处理123.4、墩身钢筋施工123.4.1 工艺流程123.4.2 钢筋进场校验133.4.3 钢筋加工133.4.4 钢筋运输133.4.5 墩身钢筋安装133.5、墩身预埋件施工143.5.1 附着预埋件143.5.2 内模支撑预埋件143.5.3 埋设连通孔143.5.4 隔仓底模施工预埋件143.5.5 盖梁施工托架牛腿预埋件143.6、墩身模板施工143.6.1 内模板施工153.6.2 外模板施工163.6.3 空心段封顶施工183.7、 墩身混凝土施工193.7.1 混凝土配合比设计193.7.2 混凝土外观质量保证措施203.7.3 浇筑前准备203.7.4 混凝土浇筑203.7.5 模板拆除、混凝土养护及修饰213.8、 脚手架接长223.9、防撞墩围堰施工22四、墩顶盖梁施工234.1、施工工艺244.2、施工准备254.3、盖梁支架安装254.4、模板工程274.5、钢筋工程294.6、混凝土工程294.7、模板拆除314.8、盖梁质量检验324.9、支座垫石施工324.10、预应力施工33五、施工进度计划36六、资源需求计划376.1、材料需求计划376.2、设备需求计划376.3、劳动力计划37七、质量保证措施387.1、质量保证体系387.2、质量管理流程407.3、施工质量控制40八、施工安全保证措施418.1、管理措施418.2、安全措施448.2.1施工安全措施448.2.2施工安全用电措施448.2.3现场施工安全措施44九、文明施工及环保449.1、文明施工、环境保护目标449.2、文明施工措施459.3、环境保护措施459.3.1加强检查和监控工作459.3.2防止大气污染措施459.3.3降低噪音措施46一、编制依据 1）重庆东水门长江大桥、千厮门嘉陵江大桥BT融资建设总承包招标文件2）重庆千厮门嘉陵江大桥工程两阶段施工图设计（招商局重庆交通科研设计院有限公司、林同棪国际工程咨询（中国）有限公司 2010.12）3）城市桥梁工程施工质量验收规范（DBJ50-086-2008）4）工程建设标准强制性条文(公路工程部分) (建标200299号)5）公路桥涵设计通用规范(JTG D60-2004)6）公路工程技术标准(JTGB01-2003)7）公路桥涵施工技术规范（JTG/TF50-2011）8）混凝土结构耐久性设计与施工指南（CCES01-2004）9）工程测量规范（GB500262007）10）千厮门大桥总体施工组织设计及相关文件二、工程概述2.1、概述 2.1.1 工程地理位置千厮门嘉陵江大桥位于渝中半岛千厮门处，通过渝中隧道与东水门长江大桥贯通，形成连接江北城区、解放碑CBD和南岸弹子石片区的公轨两用快捷通道，如图2.1-1所示。渝中隧道图 2.1-1 工程地理位置平面图2.1.2 工程范围及工程规模千厮门嘉陵江大桥路线起于渝中区陕西路（起点桩号YK13+782.0=ZK13+780.5，渝中隧道进洞口），自东向西设隧道穿越陕西路、市轮船公司、道门口农贸市场、轨道交通1号线小仕字车站，拐向北下穿筷子街、市消防一支队、民族路、市中医院、嘉陵索道、沧白路于洪崖洞与南国丽景之间设千厮门嘉陵江大桥跨越嘉陵江，跨过嘉陵江后线路接江北城中央商务区，与江北城大街南路和金沙路相交。本项目墩身及盖梁施工包括P1、P3两个辅助墩及C/D匝道及桥台台身，具体工程量见表2.1-1、2.1-2：表2.1-1 墩身工程量统计表墩位混凝土（m3），钢筋（Kg）C403228252220161210主墩P1793.1-39992-17609-337281031-P3783.7-39394-17301-318801051-A01739.1（C30）-7024812976-2646720939-C匝道 CP0529101433-20757922319011788CP136034585-9781-CP231230193-8467-CP38047823478 -4092-CP415.63312 -5431859-CP513.9-2334 -1014- CP610.8-1957 -845- CP713.9-2333 -1128- CP84.8-1232-475- CA9110（C25）-D匝道DA0342（C25）-DP9529101433-20757922319011788DP836034585-9781-DP727626899-7536-DP69461714488-4757-DP517.34259-7172455- DP419.4-3001-1368- DP317.3-2740-1344- DP221.1-3202-1461- DP113.2-2247-998-表2.1-2 盖梁工程量统计表墩位混凝土（m3），钢筋（Kg）C403228201612主墩P1397.9（C50）-6173180717286 -P3336.8（C50）- 6043176112937 -CP424.62070-10231155C匝道 CP511.14-993-218504 CP611.14-993-218504 CP811.14-993-218504 CA911.2（C30）-895D匝道DA06.48（C30）-895DP111.14-993-218504DP311.14-993-218504DP411.14-993-218504DP524.62070-102311552.1.3 自然条件1）气象工程区域属亚热带湿润气候，具冬暖春早、雨量充沛、夜雨多、空气湿度大、云雾多、日照偏少等特点，年平均气温为18.018.8。2）气温多年平均气温18.3，月平均最高气温是8月为28.1，月平均最低气温在1月为5.7，日最高气温43.0(2006年8月15日)，日最低气温-1.8。3）降水量多年平均降水量1082.6mm左右，降雨多集中在59月，降雨最高达746.1mm左右，日降雨量大于25mm以上的大暴雨日数占全年降雨日数的62%左右，小时最大降雨量可达62.1mm，最大日降雨量达266.7mm(2007年7月17日)。4）湿度多年平均相对湿度79%左右，绝对湿度17.7hPa左右，最热月份相对湿度70%左右，最冷月份相对湿度81%左右。5）风全年主导风向为北，频率13%左右，夏季主导风向为北西，频率10%左右，年平均风速为1.3m/s左右，最大风速为26.7m/s。2.1.4 工程地质根椐地质勘察资料：本工程沿线处露地层为侏罗系中统沙溪庙组沉积岩层和第四系全新统土层。表层主要为第四系因人类工程活动堆填的人工填土；下伏基岩为侏罗系中统沙溪庙组陆相沉积岩层，主要岩性可划分为砂岩、砂质泥岩。1）地形、地貌大桥位于嘉陵江河口段，曾家岩弯道下游的金沙碛滩段，下距朝天门河口0.8km。嘉陵江经曾家岩弯道后逐渐放宽，至千厮门弯道，河面宽度由不足300m放宽至1000m。工程河段属宽浅河段，“U”形河槽，其中右岸为冲刷岸，岸壁陡峻，区域内人口密集、高楼林立、建筑密度大；左岸为淤积岸，边滩发育，岸坡平缓，区域内已完成旧城综合改造，路网完善、部分土地尚未开发。枯水时水流坐弯，洪水时则水流直冲金沙碛滩面。2）水文千厮门大桥跨越嘉陵江河流，江水自西向东流，在朝天门汇入长江，平均水面坡降0.28，最大流量44800m3/s，最小流量242m3/s，多年平均流量2160 m3/s，江面宽450500m，平均流速0.16.0m/s ，平均含沙量2.372kg/m3。2009年三峡水库完全投入使用后，三峡大坝坝顶高程185m（吴淞高程、下同），正常蓄水位175m，防洪限制水位145m，枯水季低水位155m。水库调度运行方式为：每年5月末至6月初，坝前水位降至汛期防洪限制水位145m；汛期6-9月，水库一般维持此低水位运行，遇大洪水时期根据下游情况，水库排洪蓄水，库水位抬高，洪峰过后，仍降到145m运行；汛末10月，水库充水，水位逐步升高到175m；11月到次年4月，水库尽量维持在高水位。成库后，朝天门五年一遇洪水位184.3m(黄海高程、下同)、十年一遇水位186.7m、二十年一遇水位188.6m、五十年一遇水位190.9m、一百年一遇洪水位192.7m。3）航道千厮门嘉陵江大桥河段通航标准为国家级航道。设计通航常水位+175.0m(吴淞高程)，通航净高18m。4）地震大桥桥墩区抗震基本烈度为VI度，按VII级设防。2.2、施工平面布置1）塔吊布置在P3墩渝中侧承台边布置一台125t.m塔吊，并兼顾距DP0、CP9。在P1墩上游侧设置一台125t.m塔吊，距P1墩承台边约6米。2）临时材料堆场P1墩墩身施工期间受水位影响，可在靠P1墩侧不受水位影响的洪崖洞停车场前端设置一个临时材料堆场，根据每天材料用量由交通船及时运输备料。在距DP8#墩10米处设置一个临时堆场， P3墩及DP9、DP8、DP7、CP0、CP1、CP2各墩施工材料按顺序堆放于临时场地，其余各墩分别在墩旁设置。图2.2-1 施工平面布置图3）进场道路进场道路为原桩基承台施工临时通道，考虑后期受洪水水位影响，靠江侧P3、CP0、DP9墩施工作业时墩身处于水中，人员上下考虑在岸侧与墩之间搭设安全通道。其它各墩均为原施工通道，可根据现场实际情况进行适当调整。2.3、主要施工方法2.3.1 关键施工工序及施工难点1）设备选型千厮门嘉陵江大桥C/D匝道墩需要充分利用塔吊进行施工作业，所选塔吊需要同时满足几个墩施工，设备工作强度大，性能要求高。2）组织难度大P1墩位于渝中区侧已建嘉滨路桥下，无法修建便道，材料、机械等通过船运至施工现场，混凝土浇筑在桥上利用泵车进行，需与有关部门协调，占用半幅公路。3）交叉作业复杂A0桥台紧靠洪崖洞建筑群，并与轨道交通隧道、沧白路相接，且该处管网复杂，受外界干扰影响大；4）墩身高度最高为56m，安全风险高，混凝土泵送较困难，且混凝土外观质量要求高。2.3.2 墩身及盖梁施工顺序及模板配套根据水位施工期特点，靠江侧墩身必须在水位上涨前将施工高度抢出并高于水位高度。受水位影响最大的为P1墩，其次是P3/CP0/DP9墩，其它各墩基本不受水位影响，拟投入两套模板分别抢施工P1、P3墩。其它各墩对工期影响不大，拟考虑模板周转使用。墩身尺寸及分段如表2.3-1所示。盖梁施工时先加工一套P1墩盖梁模板，P1墩盖梁施工完成后对模板进行适当修改，然后施工P3墩盖梁。后续盖梁模板均由辅助墩盖梁模板修改加工而成，逐一按照进度计划进行施工。 表2.3-1 墩身尺寸及分段表序号墩号外形尺寸高度第1段高第2段高第3段高第4段高第5段高第6段高第7段高第8段高第9段高第10段高第11段高第12段高第13段高1P17m*5m39.8m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m3.8m2P37m*5m39m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m3m3CP05.3m*3m53m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m3.5m4DP95.3m*3m56m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m2m5CP1/DP84m*2m45m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m6CP24m*2m39m4.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m3m7CP32m*2m20m4.5m4.5m4.5m4.5m2m8CP42.4m*1.6m6.5m4.5m2m9CP52.4m*1.6m5.8m4.5m1.3m10CP62.4m*1.6m4.5m4.5m11CP72m*2m5.8m4.5m1.3m12CP82.4m*1.6m2m2m13DP12.4m*1.6m5.5m4.5m1m14DP22m*2m8.8m4.5m4.3m15DP32.4m*1.6m7.2m4.5m2.7m16DP42.4m*1.6m8.1m4.5m3.6m17DP52.4m*1.6m9m4.5m4.5m18DP62m*2m23.5m4.5m4.5m4.5m4.5m4.5m1m19DP74m*2m34.5m4.5m4.5m4.5m4.5m4.5m4.5m4.5m3m2.4、主要施工设备1）施工塔吊在P1墩附近安装一台125t.m塔吊，间距P1墩6m，靠上游侧布置；在P3墩边安装一台125t.m塔吊，兼顾CP0及DP9两个墩施工；A0桥台江北侧斜坡处布置两台125t.m塔吊，同时兼顾临时支架施工。2）混凝土输送泵根据各墩墩身高度，混凝土输送泵主要用于墩高较高的P3、CP0、DP9、CP1、DP8、CP2和DP7墩，其它各墩均采用泵车直接泵送。为综合利用资源，墩身盖梁混凝土输送泵采用索塔用混凝土高压泵，型号为SCHWINGBP4000。备用一台型号为中联HBT90-21-220S的高压混凝土泵。SCWHINGBP4000-HDR泵技术数据：泵送高度： 400m； 最大理论混凝土输出能力：高压输送55m3/h ，低压输送87m3/h； 最大混凝土压力：201bar ； 发动机功率： 264kw。HBT90-21-220S混凝土泵主要技术数据：泵送高度：450m； 最大理论混凝土输出能力：高压输送 55 m3/h ，低压输送95m3/h；发动机功率：220kW。 为考虑后期洪水影响，泵管沿栈桥与墩身灯笼梯之间临时通道布置，并附着在梯子上向上布置。受洪水影响的为P3、CP0、DP9墩需要混凝土泵泵送，其它墩不受洪水影响，直接接泵管即可。图2.4-1 P3墩临时通道及泵管连接示意图CP0墩紧靠栈桥，施工通道及泵管通道直接由栈桥桥面接入，DP9墩可P3墩左侧（靠近栈桥侧）灯笼梯与右侧灯笼梯连接后形成一临时通道，作为混凝土泵送施工通道。三、墩身施工千厮门大桥辅助墩及C、D匝道墩身采用翻模法施工工艺，按模板高度4.5m进行节段划分，逐段向上翻模施工。桥台台身拟考虑部分采用钢模板，部分新加工而成，为竹胶板模板，翻模高度为4.5m，逐段向上施工。翻模法施工工艺流程框图见图3-1。钢筋预埋、承台混凝土浇注、养护、接合面凿毛测量放线钢筋定位骨架安装接合面处理立筋、箍筋绑扎钢筋加工运输至现场拉勾筋绑扎钢筋定位骨架拆除混凝土浇注混凝土养护、模板拆除墩顶施工测量校核合格钢筋验收合格人行爬梯安装模板安装图3-1 翻模法施工工艺流程3.1、测量放线