《平桥大道公跨铁立交桥施工组织设计》.doc

一、 工程概况信阳市平桥大道公跨铁立交桥为信阳市华豫发电有限责任公司铁路专用线附属工程，其位于信阳市平桥大道上，是为适应信阳市撤地建市和缓解城市交通而设计建造的。本立交桥为桥上纵坡控制桥长，桥中部跨越光明路、信阳热电厂排水渠、既有铁路专用线，其中跨越铁路处预留双线条件。设计该立交系统范围长度583.67米，其中桥长327.555米，东侧引道长136.845米，西侧引道长119.266米。立交桥平面线形为曲线，曲线半径为350米，路幅为15米快车道+2×3.0米人行道。快车道直线段横坡为人字坡2%，曲线段设2%的超高，超高缓和段设在平曲线缓和曲线内，人行道为向内倾斜1%横坡。桥上纵坡在光明路与铁路之间为1%，其余为3%，纵坡变化处均以圆形竖曲线连接。立交桥上部结构采用20、25米后张法预应力砼简支梁，全桥共计11孔20米和4孔25米后张法预应力砼空心板梁，其中跨越光明路处为20米跨，跨越排水渠处为25米跨，跨越铁路专用线处为25米跨，本立交桥与既有铁路夹角为64°0434。桥梁支座采用橡胶板式支座，每片板梁4块，每孔一端为板式支座，一端为四氟乙烯滑板支座。立交桥下部结构中，两侧桥台均采用U型桥台配扩大基础。桥墩采用后张法部分预应力砼帽梁及钢筋砼双柱墩身。部分预应力砼帽梁采用R=1860Mpa钢绞线；除810号墩帽梁为12束钢绞线外，其余各墩帽梁钢绞线均为11束，每束为5根j15.24mm钢绞线。帽梁施工设计采用全部预应力钢筋分两次张拉施工方法，即先张拉4束1号预应力钢筋，待空心板中梁假设完毕后，再张拉其余预应力钢筋，最后架设2片边梁。16号桥墩墩柱为横1.5m×纵1.1m矩形，其余墩柱均为1.5m圆形桥墩。桥墩基础采用25号钢筋砼承台及双排2根直径为1.0米的钢筋砼钻孔桩基础。引道填土全部采用夯填渗水性土壤，两侧砌筑浆片挡土墙。桥面行车道在现浇层上部加铺沥青砼铺装层，桥面预留了照明设施安装条件，桥上排水采用纵横向排水，并在桥两侧安装泄水管。二、 编制依据及原则与质量目标2.1编制依据1、 铁道部郑州铁路局武汉勘测设计院关于信阳市平桥大道公跨铁立交桥施工招标文件及施工设计图。 2、 现场踏勘及调查资料。3、 我公司现有的机械设备和施工、技术能力，以及近年来参加市政工程及公路桥梁建设的施工经验。4、 公路桥涵施工技术规范(JTJ041-2000)5、 公路路基施工技术规范(JTJ033-95)6、 公路路面基层施工技术规范(JTJ034-2000)7、 公路路基施工技术规范(JTJ033-95)8、 砌体工程施工及验收规范(GB50203-98)9、 混凝土结构工程施工及验收规范(GB50204-92)10、 铁路桥涵施工技术安全规则(TBJ403-87)11、 建筑施工高处作业安全技术规范(JGJ80-91)12、 建设工程施工现场供用电安全规范(GB50194-93)2.2编制原则1、 施工组织设计必须满足业主提出的工期要求的原则。2、 工程质量必须符合现行市政桥梁施工有关规范及验评标准要求，确保工程质量优良的原则。3、 确保施工质量的原则。4、 确保施工安全的原则。5、 合理施工及文明施工的原则。6、 按照总公司实施“精品工程”的战略和ISO9002国际质量认证体系和项目法施工要求，进行项目施工管理和质量监控。7、 国办（1999）06号国务院办公厅关于加强基础设施工程质量管理的通知。8、 合理效益的施工原则。2.3质量目标1、 认真执行GB/T19002国家标准和有关标准，调动本单位各方面的技术力量和设备力量，确保各施工项目达到公路设计和施工规范要求，使完工后的各单项工程全面达到设计使用功能。2、 制定创优工程规划，建立针对本项目创优的质量保证体系，采取有效手段，制定工序、工艺、分项、分部工程操作标准和质量标准，使整个生产过程连续、稳定地处于受控状态，保证各分项、分部和单位工程达到市优标准。3、 本工程项目的质量目标是：单位工程合格率100%，优良率90%，确保创省部级优质工程。 三、 施工组织与施工部署3.1、设备及人员组织周期由于我公司正在信阳地区承建西宁铁路工程，机具及人员均在信阳地区，在人员及机具组织上面易于进行，我公司确保在接到中标通知后二周内（即业主要求的2001年8月26日）将设备、人员及机具组织到位。3.1.1设备组织周期及方法在接到监理工程师开工通知书后，按照桥梁施工工序的先后顺序和施工进度对施工机具进行合理调配和进场组织：1、 桥梁施工机具：分两批进场。第一批进场机具为桥梁墩台主体施工，机具钻孔机具于开工之日前三天组织到位，包括砼搅拌站及砼运输设备和吊车。第二批进场机具为桥梁上部架设施工机具，于开工4个月后全部到位，包括平板运输车、汽车起重机等运架梁设备。2、 制梁设备：开工后1个月内全部到位，包括龙门吊、模板、张拉设备、养护设备等。3、 土石方施工设备：挖运设备和碾压设备于开工3个半月后全部到位。4、 辅助施工设备：发电机、水泵、卷扬机等于开工后半个月内运抵工地。5、 以上各类施工机具均拟采用汽车组队运抵工地。3.1.2人员组织周期及方法 由于施工人员均在信阳地区待命，故人员组织较为便捷。施工人员分三批进场，第一批（约30人）开工即进驻工地，做施工准备和驻地设施建设；第二批（约 100人）开工1个月内全部进驻；第三批（约50人）于开工4个月后进驻。 施工人员全部乘座汽车或火车直抵工地。3.2、施工准备3.2.1施工手续准备中标后，积极与建设单位联系，与城市相关部门办好施工许可证、建设许可证、规划许可证等手续。与地方交管部门协商，制定桥梁施工期间的社会交通组织方案。与城管、环卫等部门联系，了解相关的夜间施工、噪音、材料运输等方面的管理办法，并办理有关施工许可手续。3.2.2施工技术准备技术准备工作做在所有施工准备之前，根据业主和设计单位提供的桩位及有关设计资料和图纸，做好中线导线复测及精密水准基桩引测，测放好桥墩台的位置并做好护桩工作；核对设计文件及图纸做好地形地貌调查；根据设计图纸提列主要计划并做好各种原材料的材质实验工作。确定施工方案，编制施组及质量计划，做好施工场地的道路及其它各种临时设施的布置，做到“四通一平”，做好劳力计划安排。调查好现场场地埋设的地下管线、电缆及其它障碍物的情况及所属责任单位对施工的要求。3.2.3拆迁准备 向业主及时提报工程施工进度计划，积极邀请业主相关负责人员对桥梁、引道施工范围的房屋建筑，地上、地下管网进行协同调查，配合业主提出安全经济的管网防护、拆迁方案，为施工创造有利条件。3.2.4施工场地及住地准备根据设计图纸中桥的具体施工位置，按照总体施工布署及施工实际情况需要，在施工现场附近需临时租地29.6亩。经现场实地踏勘，其施工场地具体划分为：6、 租赁平桥电厂对面一栋含大院的两层楼房（为新建路居委会），作为项目部办公场地和混凝土搅拌站；7、 租赁平电专用线西侧原平电俱乐部作为桥梁小钢筋加工场地；8、 租赁信阳冶炼厂厂内闲置的空地（距东侧引道端点约650米）作为空心板梁预制场；9、 租用立交桥工程附近民房作为施工人员生活住房。其具体位置详见施工场地平面布置图。3.2.5水、电、道路生活用水及施工用水采用市政自来水，通过与业主协商，在铁路专用线东西两侧各引入一条主供水管道。由于施工现场位于市区，电力供应充足，可就近利用，同时为防止意外停电在工地配置120kw发电机组作为施工动力备用电。由于现场施工道路条件较为狭小，既有道路实测宽度为16米（不含人行道），而新建公路设计宽度为21米，且附近单位较多，车流量较大，故我单位施工时准备先施工桥墩而后施工桥台，施工桥墩时以5个墩为一个施工单位，采取我单位较成熟的半边施工打围、半边通行的施工方案，在施工墩帽时帽梁悬挑部分采取I36工字钢悬臂架空支撑方案进行施工，以确保桥下车辆通行要求。在跨越排水渠处新建便桥一座，施工便道采取利用既有公路过渡。西侧引道部分与交叉道路交汇处施工采取先将交汇处两侧挡墙施工完毕，在人行道处开设一条5米宽便道后，再将路口封闭。道路布置情况详见施工总平面布置图。Opinions and suggestions on the party's mass line educational practiceAccording to the central and provincial, municipal unified deployment, according to municipal Party committee "about carrying out the party's mass line educational practice activity in the city's implementation opinions, the spirit of the party's mass line educational practice activities from 20* in January to 99 months, carried out at all levels of departments and directly affiliated institutions and grass-roots party organizations. According to my actual County, the county to carry out the education practice put forward the following implementation opinions.First, the overall requirementsCounty county education practice to the eighteen Party of eight, the spirit of the the third Plenary Session of the 18th CPC Central Committee as the guidance, conscientiously implement the spirit of general secretary Xi Jinping book series of important speech, earnestly implement the Central Committee really, opinions and advice > < < >, < party implementing the guiding ideology of opinions to determine the objectives and requirements, step method, in accordance with the "" look in the mirror, dress up, wash bath, cure treatment, the general requirements of "for the people pragmatic honest people as the theme, in carrying forward the spirit of Zhuanglang Zhuang, improve their work style, service to the masses of the people, the foundation of consolidating grassroots, promote transformation across efforts, to further implement the central eight regulations and < The opposition party and government austerity waste regulations "," double section "provincial regulations, municipal provisions of the" twelve "plan and the implementation measures for < on improving the work style of close ties with the masses law, highlight style building, carry out the whole wind spirit, resolutely oppose formalism, bureaucracy, hedonism and wasteful extravagance to solve the problems, Party members and cadres of the style and the masses of people strong, the Ministry of Party members and cadres to further improve their thinking and understanding, to further change the style of the wind, the masses to close, honest and pragmatic people honest image to further establish the foundation to further reinforce the basic level. Style of the building of the new results to promote the construction of a powerful force of the county and the ecological culture of the county and county construction.In educational practice activities of the unit is mainly: the county and below county departments under the organs, enterprises and institutions directly under the township, street, and community, village, non-public economic organizations, social organizations and other grass-roots organizations. Agencies and branches, each single unit, follow the rules on internal institutions. Educational practice with step by step.To adhere to the county leadership, leadership and leading cadres to focus on outstanding catch to directly contact the service of the masses of law supervision departments and window units, service industry, educational practice, pay attention to grasp the heavy towns, streets and villages, community education activities and the masses of grassroots groups in close contact to strengthen, and the majority of Party members, cadres and the mass line line Marx doctrine view of the masses and the party's education.Always speak seriously as a basic attitude, adhere to positive education, to carry out criticism and self criticism group, adhere to the pragmatic, more emphasis on leadership, pay more attention to the layers of the demonstration, more focus on the four winds, solve the problem, pay more attention to open the door, the participation of the masses, pay more attention to the classification guidance. Orderly, pay more attention to the cooperation and cohesion driven, more strict requirements on injection, really supervision practice, ensure education practice is not empty is not empty is not partial, not as a mere formality.Two, the key point of the taskThe main task of the county's education practice is to seize against "four wind" this focus on centralized solve outstanding problems asked County, township leadership and leading cadres of the four winds, the disadvantages of the style, scale behavior to a large scale investigation, overhaul, cleaning greatly. At the same time, respond to the concerns of the masses, safeguard the interests of the masses, pay attention to solve practical problems, solve the people around the unwholesome tendencies especially on eat, take the card, Yong lazy luxury, extravagance and waste fees, privileges and other issues, timely and effective, without any discount to solve, to improve the style of real implementation of the requirements of real to the grassroots, real let group Benefit the public.(a) focus on solving the "four winds" outstanding issuesThe central and provincial requirements, the county leadership and leading cadres of key performance concept is not correct, do not dare to play, to engage in "image project", "political project", a leadership guide, a set of ideas, orders and prohibitions, and a policy, there are countermeasures county. The units directly under the heavy focus on solving Yung lazy drag, buck passing skin, work is not implemented, the service is not active. The dynamic problem of law enforcement and supervision departments and window units, service industry mainly solve the door hard, ugly face, something difficult, and arbitrary charges, fines, levies, and breach of privilege, chinakayao, not the problem of law. The township, street The collar of leading bodies and leading cadres to solve key does nottheir own conditions to develop the correct road, the maximum to avoid investment risk, gain profit.(three) vigorously promote the brand. To establish brand awareness, awareness of the use of brand, brand value, brand acquisition performance, enhance the competitive strength. Concentrated manpower, careful planning, packaging and publicity of a number of unique, market influence and coverage of the brand, the implementation of key breakthroughs, to enhance the competitive strength, walking business road the competition of alienation and characteristics, the pursuit of stability and development of the market.(four) to promote the integration of resources. To further broaden their horizons, effective integration of resources within the group, the city resources, other industries and regional resources, mutual trust, mutual benefit, seeking win-win principle, in the framework of national policies and regulations, strict inspection and argumentation, legal consultation, examination and approval procedures, strict regulation of economic activities, attract injection the social investment to the industry group, to achieve leveraging the development, ensure that the value of state-owned assets.(five) to strengthen the construction management personnel. Strengthen the management of education and training of cadres and workers of the existing business, firmly establish the concept of the market, enhance the sense of crisis to adapt to market competition, the sense of urgency, improve the ability to respond to market competition, improve management and operation of the market. At the same time, according to the need of industrial development, vigorously the introduction of high-quality management management personnel, and strive to build a high-quality professional management team, hard work, and promote the entire workforce knowledge structure, age structure, structure optimization and upgrading ability, enhance core competitiveness, adapt to the need of market competition.(six) seriously study the policy for policy. Serious research about social support the development of cultural undertakings in the country and the XX policy, especially the policy of industrial development, financial investment policy, financial policy and tax policy, and actively seek policy, projects and funds, enterprise and industry group mission to promote leapfrog development.四、 初步的工程总进度计划安排4 . 1施工工期开工日期： 2001年8月26日竣工日期：2002年8月11日工程总工期：11个半月。主要项目工期安排1、 施工准备：15天2、 立交桥主体结构：273天3、 引道工程：242天4、 桥面等附属工程：122天5、 竣工交验：15天以上工期详细安排见施工总体计划表4 .2劳力安排 管理人员26人，职工及辅助配合施工人员160人。其具体详细安排详见附表劳动力动态曲线表。（人数） 200180160140120100806040 12 1 2 3 4 5 6 7 8 9 （月份）主 要 工 种 配 备 情 况序 号主 要 工 种人 数1钢筋工352砼工203木工84架子、装吊工205电焊工106机械工及机械操作员157普工488安全防护员69技术员及试验员610测工411工程师612管理人员10合计1862. 3施工安排2.3.1桥梁施工安排由于受现场条件制约，全桥可分为三个施工段落来进行施工，即将0#台至4#墩作为第一施工段，5#墩至9#墩作为第二施工段，10#墩至15#台作为第三施工段。由于第二施工段位处铁路专用线与排水沟渠之间，受既有跨排水渠公路桥须采用便桥改移影响，第二施工段须在便桥铺通后方可施工，故先施工另外两个施工段。墩台施工方法为先施工桥墩基础后再开始施工桥台，在桥墩钻孔桩施工时拟采用6台钻机进行施工，第一施工段3台，第三施工段3台，采取公路半边打围施工的办法施工钻孔桩及承台。钻孔桩及承台基础拟安排在3个月内施工完毕（2001年12月26日至2002年3月26日）。墩台施工同样先施工第一、三施工段，采取从两端向中间施工，墩台施工由于可与基础施工进行穿插，故安排为4个月完成（2002年1月26日至2002年5月26日）。梁体工程安排在场外进行预制施工，梁体预制工程数量较大，共计271片后张法预应力空心板梁，,2002年10月份开始空心板梁预制工作。板梁预制完毕且养护到期后可将部分板梁运至现场进行张拉压浆，大部分板梁还是安排在预制场进行张拉压浆封孔。空心板梁制作工期为7个月（2002年10月1日至 2003年4月30日）。梁体安装拟采用2台50T 自行式汽车吊架设板梁，大型平板车运送空心板梁。由于墩台施工完毕有先有后，且梁体存放也不宜过多，故梁体的吊装是一个分阶段性的施工，考虑到梁体的运送方向，梁体的吊装方向为由西端向东端架设。梁体安装工期为5个月（2002年12月15日至2003年5月15日）。桥面铺装及人行道和四座人行梯道的施工安排在4个月内（2003年2月15日至6月15 日）完成。钢筋制作设置两个钢筋加工区来进行施工 ，其中一个设置在桥址处项目部院内作为桥梁墩台钢筋制作区，另一个设置在制梁场，加工空心板梁钢筋。砼的拌制集中在混凝土搅拌站内进行，采用机动翻斗车运送至现场施工。4.3.2引道施工安排引道施工由于先要施工片石挡墙，故拟采取钻孔桩施工时采用的方法进行施工，封闭公路半边打围施工。挡墙施工分节施工。在平桥大道与各交叉道路交汇处，采取先留下路口处不施工，将路口两侧挡墙施工完毕并将基坑回填后，在挡墙外侧修建便道后，再修筑路口处挡墙。东、西两侧引道的修筑安排同步进行。引道施工工期安排请详见施工总体计划表。 工程管理曲线 年度 季度进度2002年2003年一季度二季度三季度四季度一季度二季度三季度 100 90 80 70 工 程 60 完 成 50 的 百 40 分 比 30（%） 20 10