We will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application oftraining, improve employees application information system of capacity and level. Humanistic care to ensure \To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employes life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. o strengthen risk management, ensure that the business of \ngthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. To further standardize trading, and strive to achieve \ding to law, standardize and fair.\of performance management, to ensure that potential employees \strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \se\of core role, and fighting fortress role and pioneer model role; to continues to strengthening \p construction, full play levels cadres in enterprise development in the3、素砼垫层施工
(1)清除软土、泥浆及浮碴。
(2)素砼垫层采用分段施工,在主体结构施工节段长度两端加200mm。 (3)当坑内有水时,采取如下措施: ① 在坑内做排水沟、集水井抽干水。
② 如坑底渗水较大,且有一定的动水压力时,应采取抽排水措施,并在减压的情况下铺基底垫层和浇筑封底砼。
③ 当底板砼强度达到70%以上后,方可停止抽水,采用特殊措施封闭集水井。 ④ 深基坑封底后,不应立即停止降水,应等整个结构施工完毕后方可停止降水,如需提前停止降水时,封底砼与围护结构间应有足够的强度和承受力来抵抗底板的上浮,以保证砼不致破坏。
4、防水层施工
防水层施工方法见“明挖结构防水层施工”一节。 5、底板施工 (1)注意事项
① 垫层砼达到14天强度后,方可施工底板。 ② 车站底板施工时要特别加强对接地板的保护。 ③ 浇注砼必须做好标高控制桩,并保护好测量控制桩点。 (2)底板钢筋工程 1)、钢筋加工制作
① 钢筋必须有质保书或试验报告单。
② 钢筋进场时分批抽样物理力学试验。使用中发生异常(如脆断、焊接性能不良或机械性能显著不正常时),要补充化学成份分析试验。 ③ 钢筋的类别和直径如需调换、替代时必须征得设计单位的同意,并得到监理工程师认可。
④ 钢筋加工的形状、尺寸必须符合设计要求。钢筋的表面保持洁净、无损伤、油渍、漆污和铁锈等在使用前清除干净。不使用带有颗粒状或片状老锈的钢筋。
⑤ 钢筋必须平直,无局部曲折遇有死弯时,将其切除。
⑥ 钢筋的弯钩或弯折按国标GB规定执行。弯曲成型在常温下进行,不用热弯,不用锤击,也不尖角拆弯。
2)、钢筋焊接
① 钢筋焊接使用焊条、焊剂的牌号、性能以及接头中使用的钢板和型钢均必须符合设计要求和有关规定。
② 进口钢筋焊接必须进行化学成份检验和焊接施工,经检验合格后方可使用。 ③ 焊接成型时,焊接处封锁水锈、油渍等。焊接后在焊接处无缺口、裂纹及较大的金
f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. To further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling pastone another across a railing, we are enthusiastic and full of confidence. Future development
opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happy14
属焊瘤,用小锤敲击时,应发出与钢筋同样的清脆声。
④ 钢筋焊接的接头形式、焊接工艺和质量验收,按国家现行标准《钢筋焊接及验收规程》的有关规定。
⑤ 钢筋焊接前,必须根据施工条件进行试焊,合格后方可施焊。焊工必须有焊工考试合格证,并在规定的范围内进行焊接操作。
⑥ 轴心受拉和小偏心受拉杆件中的钢筋接头,均采用焊接。普通砼中直径大于22mm的钢筋和轻骨料砼中直径大于20mm的I级钢筋及直径大于25mm的Ⅱ、Ⅲ级钢筋的接头,均采用焊接。
对轴心受压和偏心受压柱中的受压钢筋的接头,当直径大于32mm时,采用焊接。 3)、钢筋绑扎与安装
① 所配置钢筋的级别、钢种、根数、直径等必须符合设计要求。
② 焊接成型后的网片或骨架必须稳定牢固,在安装及浇注砼时无松动或变形。 ③ 同一根钢筋上在30d、且小于500mm的范围内,只准有一个接头。
④ 绑扎或焊接接头与钢筋弯曲处相距不小于10倍主筋直径,也不在最大弯矩处。 ⑤ 当设计有防迷流要求时,严格按设计要求采用焊接贯通。
⑥ 钢筋与模板间设置足够数量与强度的垫块,确保钢筋的保护层达到设计要求。 ⑦ 在绑扎双层钢筋网时,设置足够强度的钢筋撑脚,以保证钢筋网的定位准确。 ⑧ 钢筋的绑扎符合规定:
a、钢筋的交叉点采用铁丝扎牢,至少不小于90%。 b、各受力钢筋的绑扎接头位置应相互错开。 (3)底板砼施工 1)、浇注方案
明挖段结构砼均采用C30、S8防水商品砼,用砼运输车送至基坑边靠近工作面处,再用砼输送泵送至灌注工作面。每一工作面采用2-4台地泵或汽车泵输送砼。在工作面泵管端头采用耐高压橡胶管(4-6m)作活动端,便于人工摆动、调节。灌注过程中,采用插入式振捣器振捣。
砼浇注采用阶梯式分层浇筑法施工,即第一层从施工段端底层浇筑,进行到一定距离返回浇筑第二层,且第二层砼控制在第一层砼初凝前浇筑,如此依次向前浇筑各层。
2)、砼运输及输送
结构采用商品砼,搅拌车运输,输送泵车输送,并按下列规定执行:
①向商品砼厂家派驻内部监理员,监督检查各种原材料到货质量、计划情况、拌合情况,协助厂家试验人员抽样、测定坍落度,并与施工现场及时联络,互通情况,确定当日使用商品砼等级及特殊性能要求,记录砼输送车离开时间等。
②运送砼,避开车流高峰期在细致深入调查研究的基础上,定出省时、短距离的运送路线,并制定应急措施,确保砼卸出到浇注时间间隔不大于90min,若因特殊情况出现砼输送中断,则对已浇注的砼部分按施工缝处理,或按有关规定处理。
标书制作系统
15
We will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application oftraining, improve employees application information system of capacity and level. Humanistic care to ensure \To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employes life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. o strengthen risk management, ensure that the business of \ngthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. To further standardize trading, and strive to achieve \ding to law, standardize and fair.\of performance management, to ensure that potential employees \strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \se\of core role, and fighting fortress role and pioneer model role; to continues to strengthening \p construction, full play levels cadres in enterprise development in the③商品砼选择根据甲方指定的搅拌站供应,但须确保质量后核对报码单,并在现场作坍落度核对,允许±1~2㎝误差,超过者立即通知搅拌站调整,严禁在现场任意加水,并按规定留足抗压、抗渗试件。
④从搅拌车卸出的砼不发生离析现象,否则需重新搅拌合格后方可卸料。 ⑤输送泵车保持良好状态。
⑥输送泵管路拐弯宜缓,接头严密,无硬弯。输送砼过程中,接长管路时分段进行,接好一段,泵出砼后方可接下一段。
⑦输送泵间歇时间预计超过45min或砼出现象离析现象时,立即冲洗管内残留砼。 ⑧输送砼过程,受料斗内保持足够砼。 3)、砼浇筑及振捣
① 结构均采用防水砼,其抗压强度、抗渗标号必须满足设计要求,并具有良好的抗裂性能。
② 在主体结构砼浇灌前必须做好以下几项工作:
a、编制砼的浇注方案:根据现场条件、结构部位、浇注量等,编制详细的浇注方案,方案中包括设备、机具、劳动力的组织、砼供应方式、现场质量检查方法、砼浇注流程、路线、工艺、砼的养护以及防止砼开裂的各项措施,并经监理审核、业主批准后才能实施。
b、模板、钢筋、预埋件、预留孔洞、端头止水带完成后必须首先经过我单位质保体系的三级检查并有书面记录,最后由监理工程师按隐蔽工程验收。经验收签证后才能进行砼浇注。
③ 砼浇注过程中应注意的事项:
a、砼灌注必须控制其自由倾落高度,如因超高而使砼发生离析现象进,采用串筒、溜槽或振动流管下落。
b、砼必须采用振捣器振捣,振捣时间为10~30S,并以砼开始泛浆和不冒气泡为准。 c、振捣器移距:插入式不大于作用半径一倍,插入下层砼的深度不小于5㎝,振捣时不得碰撞钢筋、模板、预埋件和止水带等;表面振捣器移距与已振捣砼搭接宽度不小于10㎝。
d、砼从底处向高处分层连续灌注。如必须间歇时,其间歇时间尽量缩短,并在前层砼凝结之前,将次层砼灌注完毕。
间歇的最大时间,按水泥品种及砼凝结条件确定,砼凝结时间不超过下表规定:
砼 凝 结 时 间 表
砼标号 C20以下 C20以上 气温低于25°C 210min 180min 气温高于25°C 180min 150min e、砼每层灌注厚度,当采用插入式振捣器时,不超过其作用部分长的1.25倍;表
f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. To further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling pastone another across a railing, we are enthusiastic and full of confidence. Future development
opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happy16
面振捣器不超过200㎜。
f、结构预埋件(管)和预留孔洞、钢筋密集以及其它特殊部位,必须事先制定措施,施工中加强振捣,不得漏振。
④ 结构施工缝留置在受剪力最小处。
⑤ 施工缝处继续灌注砼时,按下列规定执行: a、按设计安置好膨胀止水条。
b、已灌注砼强度:水平施工缝处不低于1.2MPa,垂直施工缝处不低于2.5 MPa。 c、施工缝处砼必须认真振捣,新旧砼结合紧密。 ⑥ 砼灌注地点采取防止暴晒和雨淋措施。
⑦ 沿线路方向分层留台阶灌注,砼灌注至标高初凝前,用表面振捣器振一遍后再作压实、收浆、抹面。
⑧ 结构变形缝设置中埋式止水带时,砼灌注按下列规定执行: a、灌注前校正止水带位置,表面清理干净,止水带损坏处修补好。 b、板结构止水带的下侧砼振实,将止水带压紧在表面后,方可继续灌注砼。 c、边墙处止水带必须固定牢固,内外侧砼均匀、水平灌注,保持止水带位置正确、平直、无卷曲现象。
⑨ 砼灌注过程中随时观测模板、支架、钢筋、预埋件和预留孔洞等情况,发现问题,及时处理。
现浇砼和钢筋砼的偏差控制在下表所示要求的范围内:
现浇砼和钢筋砼允许偏差表
项次 项 目 独立基础 1 轴线位移 其它基础 柱、墙、梁 轨道中心线位移 1A 净空界限 层高 2 标高 底板 3 截面基础 +0 -10 +15 -10 尺量检查 满足设计要求 ±10 用水准仪或尺量检查 允许偏差(mm) 10 15 8 15 尺量检查 检验方法 标书制作系统
17
We will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application oftraining, improve employees application information system of capacity and level. Humanistic care to ensure \To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employes life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. o strengthen risk management, ensure that the business of \ngthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. To further standardize trading, and strive to achieve \ding to law, standardize and fair.\of performance management, to ensure that potential employees \strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \se\of core role, and fighting fortress role and pioneer model role; to continues to strengthening \p construction, full play levels cadres in enterprise development in the尺寸 梁、柱(墙) 每层 全高 ±5 5 H/1000且<15 用2m的托线板检查 用经纬仪或吊线和尺量检查 用2m的靠尺和楔形塞尺检查 4 墙柱垂直度 5 6 7 8 9 表面平整度 预埋钢板中心线位置偏移 预埋管、预留孔中心线位置偏移 预埋螺栓中心线位置偏移 预留洞中心线位置偏移 6、侧墙、顶板施工
8 5 尺量检查 5 5 15 区间明挖段顶板采用钢管扣件式脚手架搭设满堂支架支模灌注砼。结构顶板采用组合钢模板,侧墙采用大块模板,结构的腋角采用特制钢模板。砼采用商品砼。
(1)模板工程
1)、模板支架体系的选择
框架结构净高5.13m,脚手架采用φ48×3.5钢管扣件式脚手架满堂支架系统。 2)、侧墙及顶板模板施工
侧墙需安设对拉螺栓,纵横向间距500mm梅花型布置,且用斜撑撑稳顶板用100×100方木,纵横向顶托模板。
施工方法:
①在底板上预埋φ25、45cm长钢筋(其中25cm锚入砼中),其间距为1000mm,分排设置,与侧墙边的距离分别为1.5m、2.5m、3.5m。
②按顺序先安装钢模板,然后安设10cm×10cm、4m长方条(方条间距为50cm),再装纵向[10槽钢(间距100cm),最后装φ48斜撑钢管。 ③根据受力分析计算顶板模板采用碗扣式脚手架搭设满堂红脚手架上面间距500×500安设100mm×100mm方木顶托模板。
脚手架竖向间距1000mm,横向间距850mm,利用侧墙斜撑、横撑加固。 3)、特殊部位模板支立
双跨框架向单跨框架过渡处的三角区,先施工区间隧道框架,然后在其外侧(靠近出入段线框架)施作防水层并砌砖墙保护层。砖墙保护层要砌成三角形,以240厚为准,砖墙之间填土,此砖墙同时作出入段线的防水层保护层兼外侧模板,出入段线在区间隧道顶面上部的侧墙支模仍按前面所述方法作斜撑,撑于区间隧道顶面上。
f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. To further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling pastone another across a railing, we are enthusiastic and full of confidence. Future development
opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happy18