标 洞门施工方案

1、.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&#

2、39;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

3、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

4、 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 g

5、ood 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, edu

6、cation, 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

7、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 the

8、se 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 govern

9、ance 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 opportun

10、ity, 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

11、 to apply what they have learned, consciously study results into planning work, new ideas,深圳市城市轨道交通7号线BT项目7305标 赤尾站华强北站区间工程洞门施工方案深圳市城市轨道交通7号线BT项目7305标【赤尾站华强北站】区间工程洞门施工方案审核：校核：编制：中国水利水电建设股份有限公司深圳地铁7号线7305标项目经理部2014年5月#；new measures to promote work, the courage to take responsibility, dare to break ha

12、rd 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 soci

13、al 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 &#

14、39; 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 rec

15、tify 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 developm

16、ent 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 relev

17、ant 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 abili

18、ty 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 t

19、he 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 wit

20、h 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

21、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 betwe

22、en the two, will accompany目 录一、编制依据21.1 编制依据2二、工程概况22.1 工程概况：2三、施工总体安排33.1施工工期安排33.2施工管理机构43.3 劳动力组织安排4四、施工准备4五、施工工艺65.1注浆堵水75.2 搭设脚手架75.3管片拆除95.4防水施工95.5绑扎钢筋105.6立模105.7浇筑混凝土105.7 拆模、养护115.8注浆11六、质量保证措施116.1 洞门保圆措施116.2隐蔽工程质量保证措施116.3 防渗漏保证措施126.4 洞门施工注意事项12七、安全文明保证措施136.1施工现场安全措施136.2供电及照明安全措施136.

23、3洞门施工安全措施136.4事故发生的急救措施136.5文明施工措施14- 1 -一、编制依据1.1 编制依据1.【赤尾华强南、华强南华强北】区间施工设计图纸； 2.地铁设计规范（GB50157-2003）； 3.地下铁道工程施工及验收规范（GB 50299-1999-2003版）；4.地下工程防水技术规范（GB50108-2008）； 5.盾构法隧道施工与验收规范（GB50446-2008）；6.地铁工程质量检验评定标准（车站、隧道结构）。二、工程概况 2.1 工程概况：赤尾站至华强南站区间位于深圳市福田区滨河大道及华强路相交的区域，区间线路自赤尾站后沿滨河大道穿过华强南人行天桥北行至达华强

24、南站，隧道右线设计起讫里程为DK21+070.801DK21+657.074，全长586.273m；区间隧道左线设计起讫里程为左DK21+071.491左DK21+657.074，左DK21+240.640=左DK21+250.000短链9.360m，全长576.223m。途经赤尾村住宅、京基御景华城、华日阁、广东省边防总队深圳指挥部办公楼、交通局宿舍楼、深圳市无线电管理大厦及华强南人行天桥等主要建筑物。华强南站至华强北站区间，起点为深圳市中医院东侧，沿华强南路布置一直向北延伸至华强北路，终点为华强电子世界旁设华强北站。设计起点里程为DK21+815.074，设计终点里程为DK22+166.8

25、78，线路在DK21+900.159=DK21+900.000长链0.159m，左、右线长度均为351.963m。区间采用通用衬砌环管片，隧道内径5400mm，外径6000mm。钢筋混凝土管片幅宽1500mm，厚度300mm。本区间隧道共8个洞门，具体位置见下表1-1。表1-1 洞门统计表洞门位置里程备注赤尾站始发端头DK21+070.801；ZDK21+071.4912个华强南站到达端头DK21+657.074；ZDK21+657.0742个华强南站始发端头DK21+815.074；ZDK21+815.0742个华强北站到达端头DK22+166.878；ZDK22+166.8782个三、施工

26、总体安排本工程洞门数量共8个，在充分考虑对盾构掘进施工影响最小的情况下，综合考虑根据场地等各方面因素安排逐一施工。3.1施工工期安排单个洞门计划施工时间为15天，期间充分利用盾构过站等时间合理安排施工。总工程师项目副经理项目经理质量检查工程师施工队专职质检员及工班兼职质检员工程技术部计财部安质环保部综合办公室工地试验室物资设备部3.2施工管理机构图2-1 洞门施工管理机构图3.3 劳动力组织安排项 目注浆管片切割钢筋模板砼安全质检材料合 计人数4645612129四、施工准备主要包括场地和施工机具、材料的准备。场地的准备主要是考虑机具（主要是注浆机具）的堆放、施工时不影响电瓶车的进出等。施工机

27、具的准备主要有双液注浆泵（FBY50/70）及配套注浆设备、冲击钻、灌浆工具、脚手架、模板等如下表3-1：表3-1 施工设备配备情况表序号设备名称数量规格型号主要工作指标一、供电、通风设备1变压器2100KVA、500KVA2空压机110m3/min55kw二、注浆设备1注浆机1F1BY50/707.5 kw2搅拌机15.5kw三、处理设备1风镐3G10A四、钢筋加工1钢筋切断机13kw2钢筋弯曲机1Y100L2-43kw3电焊机2BX1-31521kw4氧焊机25砂轮机1MQ32252.2 kw五、混凝土施工1振捣棒4ZN351.1kw2附着式振动器43木工锯1GX-31F12.2 kw41

28、5T龙门吊125t模板为专业厂家定做的钢模板。施工材料主要包括水泥，掺入材料（泥粉、水玻璃、粉煤灰）等。五、施工工艺后浇洞门环宽500mm,厚550mm。洞门环框与管片之间采用预埋16钢筋连接，钢筋锚固长度不小于700mm。洞门结构大样图如图4-1所示：图4-1 洞门结构图洞门衬砌施工前先要拆除洞口环管片，按设计铺设防水层，安装膨胀型遇水膨胀止水橡胶条，绑扎钢筋，确保洞门钢筋与端墙结构连接牢固，立模后浇筑砼。洞门施工完成后，根据洞门防水效果情况决定是否向洞门管片背衬补压浆以提高洞门防水性能。洞门施工工艺流程见图4-2。拆除洞口环管片防水处理钢筋绑扎立模前检查立模模板检查浇筑混凝土拆模、养护检查

29、洞门防水效果结束钢筋制作调整不合格调整不合格模板制作合格合格洞门环背后注浆合格合格图4-2 洞门施工工艺流程图5.1注浆堵水为达到在洞门环片的拆除和洞门施工中隧道安全和防水的目的，应首先对洞门的隧道进行壁后注浆。注浆的范围为05环；因为始发井的结构与围护结构间有渗水，也应进行相应的注浆堵水，注浆管的直径为42。需要注意的是对注浆压力的控制。5.2 搭设脚手架进行管片切割、拆除施工前，为便于施工，需搭设施工脚手架。根据现场的实际情况，脚手架下方必须保留可让机车通过的通道。施工脚手架由48钢管搭设而成，设上下两层平台，用48钢管铺设。扣件式钢管支顶施工工艺： 作业要求本脚手架支撑在隧道结构的砼底板

30、上，基础坚固不需作任何处理。但为了确保立杆稳固可靠，应按构架设计的立杆间距进行放线定位，铺设垫板和安放立杆底座，并确保位置准确、铺放平稳，不得悬空。 搭设作业放置纵向扫地杆自角部起依次向两边竖立底（第1根）立杆，底端与纵向扫地杆扣接固定后、装设横向扫地杆并与立杆固定（固定立杆底端前，应吊线确保立杆垂直），每边竖起34根立杆后，随即装设第一步纵向平杆（与立杆扣接固定）和横向平杆（小横杆，靠近立杆并与纵向平杆扣接固定）、校正立杆垂直和平杆水平使其符合要求后，按4060N.m力矩拧紧扣件螺栓，形成构架的起始段按上述要求依次向前延伸搭设，直至第一步架交圈完成。交圈后，再全面检查一遍构架质量和地基情况，

31、严格确保设计要求和构架质量设置连墙件（或加抛撑）按第一步架的作业程序和要求搭设第二步、第三步随搭设进程及时装设连墙件和剪刀撑装设作业层间横杆（在构架横向平杆之间加设的、用于缩小铺板支承跨度的横杆）、铺设脚手板和装设作业层栏杆、挡脚板或围护，封闭措施。图4-3 脚手架搭设示意图图5-2 洞门脚手架搭设图5.3管片拆除洞门施工前首先对近洞口3环管片进行处理，从衬砌压浆孔内注入水泥水玻璃双液浆，待其固结后将洞口临时密封（折压板、帘布橡胶板等）拆除干净，利用专用工具进行洞门环的拆除，先拆一块邻接块，然后再自上而下依次拆除。砂浆采用风镐凿除施工，凿至洞门圈内砼表面完全出露，清理干净，进行下道工序施工。5

32、.4防水施工防水是洞门工程施工的一个很重要的环节，它的质量是通过第一道到最后一道工序内各防水环节的质量来综合体现，任何一个环节做得不好，都有可能对整体防水效果产生很大的影响，因此在整个施工过程中，必须加强过程控制，一步一步地做好每一道工序的防水质量。隧道洞门和盾构隧道、盾构工作井端墙的连接部位，拐角多，施工缝多，是防水工作的难点。洞门采用C40、P10补偿收缩混凝土进行施工，在洞门砼灌注前，认真清理洞门预埋钢环内侧污物，涂刷氯丁胶，粘贴两道遇水膨胀橡胶带，并涂刷缓膨剂，接下来预埋注浆管，然后灌注洞门抗裂防渗钢筋砼，待砼凝固后及时通过注浆管压注水泥浆，保证洞门背后密实。防水施工主要包括缓膨型遇水

33、膨胀橡胶止水条的粘贴以及洞门环梁浇注后进行注浆堵水。缓膨型遇水膨胀橡胶止水条的粘贴在粘贴缓膨型遇水膨胀橡胶止水条的部位用高压水枪清洗干净，待表面干燥后，在均匀涂刷单组氯丁酚醛粘结剂。粘结剂涂刷后，凉置一段时间（1015min），待手指接触不粘时，再将橡胶条粘结压实。沿缓膨型遇水膨胀橡胶止水条长度方向每隔500mm用高强钉加以固定。缓膨型遇水膨胀橡胶止水条延伸使用时，接头处采用重叠的方法进行搭接，搭接长度100mm，并用高强钉加以固定，安装路径应闭合成环，其间不得留断点。缓膨型遇水膨胀橡胶止水条应平顺，不得出现脱胶、起鼓、歪曲等现象。浇注混凝土振捣时，应避免振捣棒触及缓膨型遇水膨胀橡胶止水条。5

34、.5绑扎钢筋钢筋在加工车间进行加工，要保证主筋圆弧准确、圆顺；运至工作面进行绑扎、焊接，利用预埋钢环或植筋作为固定钢筋；靠近模板的钢筋要绑上预制混凝土垫块，以保证混凝土保护层厚度，避免露筋现象。5.6立模模板采用特殊加工的钢模板（定制），确保洞口的尺寸精度，保证砼表面光洁、美观。模板拼装严密，不漏浆，使用前应试拼一圈检查。在模板与管片相接处的模板上贴一圈膨胀止水条防止两者相接处漏浆。端头模板采用弧形钢堵头。堵头模板采用预埋螺杆固定，洞门模板在拱顶及拱腰设特殊堵头板，方便砼的振捣。堵头板与钢模相接处及钢模与管片相接处采用粘结膨胀止水条的方法防止漏浆。模板、钢筋、防水层等经检查验收达到设计、规范要

35、求，即开始浇筑混凝土；混凝土塌落度控制在100120mm，利用泵送直接入模，采用分层浇筑，插入式振捣器振捣，确保封顶混凝土充填密实。5.7浇筑混凝土混凝土浇注时除使拌合物充满整个模型外，还应注意拌合物入模的均匀性，保证不离析。施工过程中严禁外来水渗透到正在浇灌的混凝土中。结构防水混凝土振捣采用插入式振捣棒配合附着式振捣器进行。振捣时，“快插慢拔”操作。混凝土分层灌注其层厚不超过振动棒长的1.25倍，并插入下层不小于5cm，振捣时间为1030s。振捣棒应等距离地插入，均匀地捣实全部混凝土，插入点间距应小于振捣半径的1倍。前后两次振捣棒的作用范围应相互重叠，避免漏捣和过捣。振捣时严禁触及钢筋和模板

36、。防水混凝土结构内部设置各种钢筋或绑扎铁丝，不得接触模板。模板要架立牢固、严密，尤其是挡头板，不能出现跑模现象。混凝土挡头板做到表面规则平整，避免出现水泥浆漏失现象。洞门防水混凝土采用泵送混凝土入模。混凝土入模时，左右对称灌注，沿洞门高度分层进行，每次应连续灌注，以减少接缝造成的渗漏现象。衬砌模架按灌注孔先下后上，由后向前有序进行，防止发生混凝土砂浆与骨料分离。混凝土灌注过程中有专人随时观察模板、支架、钢筋等情况，发现问题及时处理。5.7 拆模、养护拆模时间由试验室根据试验结果确定，拆除时注意不要磕碰混凝土边脚，拆模后，进行洒水保湿养护14天。5.8注浆在洞门砼达到一定强度后，及时通过预埋的注

37、浆管向洞门砼背后压注水泥浆，确保充填的密实性和防水目的。六、质量保证措施6.1 洞门保圆措施 钢模安装精确定位后，沿径向每36°设一径向支撑杆，以防模板变形； 端头模板设斜支撑，以防跑模； 为防止混凝土浇筑时模板上浮，在上部模板焊接支撑，顶部支撑在端墙结构上。6.2隐蔽工程质量保证措施健全各项质量检查和验收制度，并切实予以执行，是保证质量的关键。止水条、钢筋等隐蔽工程采用班组自检、专业复检与监理签认相结合的检查方式。各工序完成后，班组先自检，合格后由主管技术人员、质量检查工程师会同各工班长按技术规范进行检验，不合格者坚决予以返工处理。邀请监理工程师检查验收，并做好验收记录、签证及资料

38、整理工作。隐蔽工程填写施工记录，记录上有技术负责人、质量检查人签字。工序中间交接时，有明确的质量合格交接意见。贯彻落实验收制度，对有关人员定岗定责：施工人员应详细审查施工图纸，熟悉设计意图、技术要求等。做好技术交底，技术交底实行复核制、签字制。对各分项工程，设专人负责。加强检查，消除隐患，主管工程师及质量检查人员在检查时，重点检查隐蔽部位，发现问题及时处理，将隐患消除在萌芽状态。和其它工程加强协调，主动配合，做好隐蔽工程。6.3 防渗漏保证措施防水原则与防水重点防水原则：“以防为主，多道设防，因地制宜，综合治理”。防水重点：结构防水混凝土自防水，施工缝防水。防水、防渗工程质量管理措施经理部成立

39、以项目经理为首的防水领导小组，由总工程师主抓此项工作。防水领导小组和防水班定岗定责，由总工程师组织技术人员不定期对所有防水施工人员进行防水技术、工艺、质量标准及要求培训，合格者上岗。施工前，技术人员对防水班就防水材料、施工技术、质量要求、注意事项进行详细的交底，务使施工人员人人心中有数，避免盲目施工。施工中，技术人员认真检查与指导专职人员对每道工序按照工艺细则进行精心操作，凡检查验收不合格者，责令操作者立即予以纠正。上道工序不合格不准进入下道工序。各种原材料、制品及配件进料要有出厂合格证，产品性能符合有关标准规定，使用前，把好现场试验检验关，经试验合格的方准使用。6.4 洞门施工注意事项 与盾构工作井端墙联接钢筋的焊接牢固，保证盾构井与盾构隧道刚性连接。 在管片、盾构工作井端墙和后浇洞门砼之间均设置遇水膨胀橡胶止水条（腻子型）。膨胀橡胶防水止水条要粘贴紧密，位置准确无误，砼灌注施工时，不能出现松动、破坏已粘贴牢固的遇水膨胀橡