结构物工程施工质量控制办法.doc
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1、According to Office Party of mass line education practice activities led group of unified arrangements, units main led to for cadres workers Shang a times party lecture, due to himself level limited, only put this stage concentrated learning of experience today and everyone common with learning exch
2、ange, purpose is let we further deep understanding mass line of connotation, insisted party of mass line, do masses work, following main from four a aspects told: a, and full awareness party of mass line education practice activities of major meaning Partys 18 major distinct proposed to focus on the
3、 partys advanced nature and purity, in the party, with pragmatic and clean for the people as the main content of the partys mass line and educational practice. This is comrade XI Jinping as party General Secretary and adhere to strictly administering the party, strengthen the partys major decision i
4、s in line with the public expectations and strengthening the construction of learning-oriented service innovation of Marxist partys major deployment, is the important measure to advance the great cause of socialism with Chinese characteristics. First, carry out the partys mass line in education prac
5、tice, was carrying 18 of the party spirit, summon a powerful force for realizing the great rejuvenation of the Chinese nation the Chinese dream of urgent needs. Partys 18 to promote strategic deployment to building socialism with Chinese characteristics, presents two 100-year goal, namely, by 2020 C
6、hinas gross domestic product and per capita income of urban and rural residents in 2010 on the basis of double complete the building of a well-off society; the middle of this century into a prosperous, democratic, civilized and harmonious Socialist modern country, and on this basis, the Chinese drea
7、m of realizing the great rejuvenation of the Chinese nation. 18 Congress of the party, Comrade XI Jinping repeatedly expounded the Chinese dream. The basic connotation of the Chinese dream, is the national prosperity, national revitalization, the happiness of the people, China important to follow is
8、 to keep China Road, carry forward the spirit and cohesion strength of China, dream dreams of the people of China, but determined confidence, enhance self-awareness, achieve self-reliance, to build a stronger China, civilization, harmony, beauty, China, China, China. Strategic conception of China wa
9、s 18 the spirit of the enrichment and development of the party, conscientiously study the Chinese dream, leading people to hard to realize the Chinese dream, mass education activities in depth the fundamental starting point and ending point. Strengthen the education of the partys mass line, helps to
10、 train the collective consciousness of the unity of the party and the people, playing the Chinese dream ideological bases. Comrade Mao Zedong stressed that parties should have common language socialist countries must have unity of will. History has结构物工程施工质量控制办法高速公路结构物工程具有种类繁多、数量巨大、工期紧迫的特点,为加强施工管理,确保
11、工程质量,特制定本办法。本办法重点针对特大桥、高架桥、大桥,其它如上跨桥、涵洞、通道等小型构造物参照本办法执行。一、 承包人 1. 承包人:所有施工标段严格按照合同文件的规定和满足施工现场需要的原则来配置人员,包括项目经理、项目总工、专业工程师和各类技术员工,要健全符合要求的工地试验室并取得交通厅质监站颁发的临时资质证书。特大桥项目,每标段应具备46名结构工程师。其学历、职称、实践能力应得到驻地监理工程师的认可。否则,监理工程师应指令承包人增加或调整现场结构工程师。工地试验室应配备46名专职试验员,并有一名精通业务的技术干部担任室主任。各专业班组应视工程实际,配足熟练工人,严禁全部由未经培训的
12、农民工充任。2. 监理:驻地监理组,每个特大桥应至少有一名结构监理工程师。结构监理工程师应委派35名监理员常驻施工工地,负责施工现场的日常监理。二、 机械设备机械设备是保证施工质量的前提。每个施工标段应严格按照合同文件的中所列机械数量和满足施工实际需用来配置,对于不能满足上述要求的,监理组要责令承包人添置或租赁设备,直至满足施工要求。到场的施工机械,除应满足数量要求外,还应保证机械设备的完好率及良好地机械性能。大型、专用施工机械,要实行定机、定人、定岗、定责。施工现场要挂牌施工,标牌有责任标牌、安全警示牌、技术参数标牌。标牌的尺寸、字体应统一、规范。监理组应按照上述要求,逐项检查,对于不合要求
13、的,要下工作指令或暂时停工令,限期整改。对于高标号砼(C40、C50)施工,承包人应自置强制式拌和设备,拌和站要进行达标检查,配料斗至少要有四个(砂1,石子2、水泥1)。粗、细骨料要做筛分和级配试验,粗集料要连续级配。三、 原材料控制所有进场原材料都应符合规范的有关要求。承包人在施工过程中还应注意:1. 钢材、水泥应在业主指定的厂家采购,并向厂方索取质保资料。2. 钢筋进场后,应做抗拉、冷弯、可焊性试验。预应力钢丝、钢铰线参照钢筋试验项目。3. 预应力砼所用水泥,应采用不低于425号的硅酸盐水泥,不宜使用矿渣硅酸盐水泥,不得使用火山灰水泥或粉煤灰水泥。4. 地方材料(指砂、石),不同来源的集料
14、,不得混合储存,更不能在同一标号砼的结构或同一部位的浇筑中混杂使用。5. 模板、支架的制作及质量要求见监字200012号文件。四、 施工准备 1. 各种标号的砼,应在砼浇筑前至少35天完成砼配合比设计试配,要向监理工程师提交各种配合比的全部详细结果,包括强度、各种集料的级配、混合料级配、配合比、水灰比、外加剂、坍落度等,并请监理工程师批准。如欲购商品砼时,应向监理工程师提供生产厂家的各种资料,内容包括厂家地址、供货能力、供货信誉、混合料比例、水灰比、和易性、28天强度等。C30以上标号的砼,严禁使用商品砼。2. 每个分项工程开工前,应向监理组报送开工报告,内容包括人员、机械设备到位情况、原材料
15、及配合比试验、施工组织、质量保证措施等,未经批准的分项工程,不得擅自开工。上道工序未经检查、验收,不得进行下道工序施工。3. 承包人应慎重对待砼试块的制作和标养。砼试块的制作应上振动台振捣,试块应在标准养生室标养,养生温度为203,相对湿度大于90%。五、 工程施工 承包人应严格按照桥涵施工技术规范和省指办有关文件精神进行施工。在保证内在质量的前提下,尤其要注意结构物外观质量,向业主提供一份精美的产品。1. 钻孔灌注桩钻孔灌注桩工作内容包括施工准备、钻孔、清孔、成孔检验、安装钢筋笼、浇注水下砼,截桩头及清除砼、质量检验、低应变检测、钻取芯样等,承包人除应严格按规范施工,做好各工序检查外,在施工
16、过程中还应注意:(1)承包人应根据桥位所处的地质、水文等条件以及桩的尺寸选择适宜的钻孔机械、钻孔方法。钻孔要由有丰富施工经验的施工人员主持,现场应安排专人负责和合适数量的熟练操作工人。(2)护筒、泥浆应按规范要求制作,护筒的位置、长度,泥浆的性能指标,要根据技术规范和现场实际来确定。(3)浇注水下砼,要精心准备,确保万无一失。要具备自发电设施并能保证随时启用。要连续浇注,不允许浇注过程中断或间断过程过长。(4)提升导管时不允许猛提,提升一定高度后应缓慢回落3050厘米,以免钻孔桩取芯时有离析现象。导管埋置深度既不宜过小,也不宜过大,一般应控制在26米范围。(5)要注意环境保护,防止泥浆外溢,以
17、免污染河流及周边环境。2. 下部构造下部构造包括承台(系梁)、立柱(墩身)、盖梁(台帽)。这部分施工的重点是砼振捣和外露面砼的光洁度,在施工过程中,应注意:(1) 模板应采用大块金属模板或高质量的竹胶板。(2) 立柱(墩身)浇筑,应分层捣实。分层厚度不宜过大。(3) 盖梁(台帽)拆模时,应精心操作,防止掉角等现象发生。3. 上部构造(1) 悬浇挂篮a. 连续箱梁的挂篮制作,应进行设计计算并得到监理工程师批准。b. 挂篮应进行试拼,全面检查,发现问题及时处理,组拼后进行预压,以测定挂篮的弹性挠度并消除其非弹性挠度。c. 挂篮行走或浇注砼时的稳定系数,应不小于2.0。d. 严格按设计提供的施工节段
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