ej人工挖孔桩半模施工方案.doc

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1、and urban medical rescue work, conscientiously strengthen leadership, sound system. County Government was set up by the magistrate as head of the Government, civil affairs, finance, health, labour and other related departments mainly responsible as members of the leading group for rural cooperative

2、medical care. Formed a Government, the home of the County supervisors, operation mechanism of collaboration. This year, the County started implementing Medicaid one-stop real time service, medical assistance, basic medical insurance, Effective convergence of insurance and medical relief implementati

3、on plan for 2015 I counties to reconsider an amendment will be accepted to extend the hours of medical aid on June 30, and county-wide poverty population range of serious disease including medical assistance, protection of agricultural and pastoral areas in 22 major diseases and implement home healt

4、h aid secondary aid, to achieve a longitudinal and transverse to the side of Medicaid coverage. So far, the total investment 2.8772 million Yuan relief 955 visits the sick poor people in urban and rural areas, 155,000 to rescue 65 people in patients with serious diseases. (D) efforts to the developm

5、ent of social welfare service, constantly improve the five-guarantee system. Implementing regulations of the rural five-guarantee work, further increase the intensity of day-to-day management and services to the five objects, ensure that the five should do, according to Shi Bao on the basis of furth

6、er perfecting rural five-guarantee system, raise the level of support. So far, funding for any County 89 wubaohu 524,700. Meanwhile, as a region-wide severe disabilities aged care subsidies this year pilot counties, our County has been seriously disabled elderly nursing allowance pilot program, comp

7、leting survey work for severely disabled older people throughout the County, and in June began issuing subsidies, up to now, the nursing allowance total 79200 Yuan. For a better implementation of the system of funding for raising, my County in 2015 revised Burqin County of new rural cooperative medi

8、cal care program, will include the full scope of medical aid. Existing 149 orphans in our County are scattered for the community support officers, standard 700 Yuan/month/person, up to now, the total life subsidies for the 149 orphans 983,400 winter coal subsidies for 180,000 yuan. (E) optimize resc

9、ue, relief work strengthening the vagrants and beggars. Under the voluntary aided, voluntary aid bailout principles, further strengthening the work of relief for vagrants and beggars, vagrants and beggars provide assistance such as accommodation, return travel by car, especially for children, the el

10、derly, and the sick, disabled people and young homeless person to implement a point-to-point first aid, after clearing protective relief, and safeguard the basic rights of bailouts. Meanwhile, coordinating public security, urban management, manipulation, coercion against organizations such as the us

11、e of minors, begging for the disabled and to disrupt public order and other illegal panhandling. Up to now, a total of 31,000 toRelief for vagrants and beggars of 42 passengers. (Vi) with a focus on safeguarding the peoples livelihood, promote home projects. Adhere to the project as the starting poi

12、nt, positive projects, schedule, quality, safety, and to quicken the construction of projects, has made a new breakthrough. In 2015, two projects, Burqin County community day care centre for the elderly in friendship peak project, Burqin County hemu kanas Mongolia谷山乐园经济适用房三期标段人工挖孔桩半模护壁施工方案 工程有限公司谷山乐

13、园经济适用房三期标段 栋2012年07月 national rural home for the project. According to the Countys general plan, integration of resources, in 2014, new Burqin County Senior Center project, the current project has been completed, internal equipment purchasing and working culture decoration is complete, start review

14、acceptance, put into use by the end. My County is based on the basic livelihood needs to actively seek public service facilities, 2015 to declare mutual assistance in building rural old happiness in Burqin County 8 projects, invested 400,000 yuan lottery ticket equipment purchased during the year fo

15、r the rural mutual happiness. While actively works with development and reform Department, fighting for construction project of Burqin County disaster relief material reserves, at present the project has completed feasibility study procedures, feasibility study approval. In 2015, the County invested

16、 500,000 yuan, perfect Muslim funeral home facilities, upgrading services and project acceptance. Meanwhile, seeking Burqin County non-Muslim funeral home works, so far the project has completed the project site, is for the early procedures. (VII) working steadily among others, the full implementati

17、on of the special care and placement policy. To further improve the quality of activities among others as the goal, close to military practice, deepening the County among others. During the Spring Festival, the Eid al-Adha period with condolences resident was paid 125,000 yuan forces and the soldier

18、s back, special care and activities, while increasing work of demobilized stability control, regular or irregular visit condolence activities, understand the ideological trends, solve difficulties in life, increase the spear Shield troubleshooting to resolve and implement a policy, effectively safeg

19、uarding social stability. As of now, 148 of the County issued living allowances 1.0648 million Yuan, 4 retired veteran cadres to pay health insurance premiums 10,770, pay health insurance premiums for the 3 families of retired veteran cadres 7,800 Yuan, 70 rural veterans aged over 60 issued living s

20、ubsidies of 176,000 yuan, issued for 27 veterans a one-time employment economic benefit of 1.286 million Yuan. (H) strengthen measures, promoting division names and basic power. Division name: according to the autonomous regions urbanization development plans County finished Wo yimoke Xiang town, Xi

21、ang to withdraw monthly, has passed the Home Office review of the autonomous region, continued this year to complete the scope Stack Xiang Jian Zhen Xiang withdrawal of declarations, while completing yili State Government approval, reported to the Home Office for approval. Meet the needs of Burqin C

22、ountys economic and social development, address some villages due to the large population base and wide distribution, is not easy to manage, as well as the jurisdiction of the new pastoral settlement from villages far, masses of inconvenience problem. I Board this year and all townships and organiza

23、tional Department jointly organized, on the part of the township (town) villages (communities) splits and reorganization, achieving new villages throughout the County, 11 communities 1. After adjustment, the County has jurisdiction over 7 townships (towns) 74 villages, 7 community. This year, the re

24、-inspection work for peace throughout the County the county seat, I work closely with the campaigns in villages and towns border the unit complete 5 2 town within the administrative area of the County Planning, 12 and 5 pillars of joint inspection of the border. Grass-roots democracy: one is to prom

25、ote grass-roots5 湖南湘荣建筑工程有限公司目 录一、工程概况及编制依据二、半模护壁施工的成因三、施工准备 四、主要施工方法 五、质量要求 六、安全注意事项 一、工程概况及编积依据1、工程概况工程名称:谷山乐园经济适用房三期项目 栋建设单位: 设计单位: 勘测单位: 监理单位: 施工单位: 结构形式: 2、编制依据本工程半模护壁施工方案依据设计施工图GS02-04,建筑桩基技术规范JGJ94-94、地基与基础工程施工质量验收规范GB50202-2002、湖南大地岩土工程公司勘察设计有限公司详细勘察报告以及以往人工挖孔桩桩基施工经验编制。 二、半模护壁施工的成因工程基础设计采用人工

26、挖孔灌注桩,设计桩长6m。本建设场地由岩石土工程详细勘察报告表明,本工程人工挖孔桩深度大部份桩深在10-13米左右,有少部份桩深度将超过20米以上。在桩孔开挖过程中发现存在以下情况;(1)、由于今年雨水较多,雨量较大,造成地下水位特别丰富,地下水位升高。(2)、残积黏土层挖松遇水后即成淤泥,且出现流泥、流砂等不利地质现象。(3)、本工程设计桩径不大(800-1200mm),超深桩孔施工按正常护壁危险性较大且难以进行。 根据以上施工现场实际情况及桩基础施工特性,为保证人工挖孔桩施工人员人身安全,我项目部对部分桩孔开挖进行了半模护壁施工。三、施工准备1、技术准备(1)、根据地勘报告,熟悉水文地质资

27、料,结合施工现场实际地质条件做到心中有数。(2)、对半模施工及其安全进行技术交底(班组交底)。2、现场准备(1)、按施工平面图,搭设临时设施:工棚、宿舍、配电房、仓库等。(2)、建筑机械及工具:空压机(型号W-2.8/5功率17.5KW)、电动绞车三角架手绞车、手推车或翻斗车,半模钢模(每节高度为500mm)、手铲、线坠、吊桶,串管,振动棒,粗麻绳、钢丝绳、安全活动盖板,防水照明灯(低压36V、100W)电焊机通风机及供氧设备,水泵,木辘轳、活动爬梯,安全帽,安全带缛并对它们进行使用性能、安全性能预先检查。3、材料准备(1)、水泥、中砂、石子(5-31.5mm的卵石、水、外加剂,如早强剂等)。

28、(2)、钢筋:钢筋的级别,直径必须符合设计要求,有出厂证明书及检测报告。4、降水通风送气准备由于地下水较大,应从施工顺序考虑,对周围桩孔同时抽水,以减少开挖孔内的涌水量,并采取交替循环施工的方法,以便达到快速降水的效果。在半模护壁施工中,由于桩孔较深加之桩径不大,在桩孔下挖时必须确保桩内空气流通和氧气的充足供应,应经常检查桩孔内有无毒害气体和缺氧现象,桩孔开挖深度超过10m时,应有专门向井下送风设备,风量不宜小于25C/S。四、施工方法1、挖孔方法土质较为软弱时用锄锹掘进,遇土质坚硬时改用风镐掘进,挖土次序为先挖中间部分,再挖周边,允许尺寸误差为2cm,扩底部分采取先挖桩身圆柱体,再按扩底尺寸

29、从上到下削土修成扩底形,弃土装入扩底吊桶内,垂直运输用人工绞架提升至井口边1.5m以外。2、护壁施工桩护壁的混凝土强度等级为C30,半模施工时上一节挖深约500mm,安装护壁钢模板,人工搅拌砼、人工振捣浇灌混凝土护壁。往下施工时以每一节作为一个施工循环。为保证护壁安全,护壁均应按图中要求配筋。为确保砼强度,可根据实际情况通过实验的方法对护壁砼添加外加剂,确保桩孔开挖顺利进行。为便于井内组织排水,在透水层区段的护壁预留池水孔,并在浇灌前予以堵塞。为保证桩的垂直度,要求每浇灌完三节护壁,须校核桩中以位置及垂直度。混凝土强度达1Mpa即可拆模。 3、挖孔注意事项:相邻桩扩大头尽距小于1.5D时,应避

30、免同时开挖。必须采取跳挖孔的方法,以避免由于水的渗透而造成垮井现象发生。桩孔开挖时应有效组织排水遇到流泥流砂时应立即停止施工,便快速采取有效措施防止安全事故发生。桩孔的挖掘深度应由勘察、设计人员根据现场实际情况决定,对于半模护壁的桩超深,不能只按设计图纸提供的桩长参考数据终止挖掘。挖到持力层时经地勘等质量检测部门确认后方可扩底。扩底时,为防止扩大头处坍方,可采取间隔扩底挖土措施,留一部分土方作支持,待灌注砼前再挖除。五、质量要求(一)保证项目1.凡进入现场的原材料必须符合设计要求和施工规范规定,并且应遵循先送检合格后才能使用的原则。2.施工中必须对每一个桩做好隐蔽记录,持力层必须经桩基础原位测

31、试达到设计要求,勘察、设计、监理、业主四方现场验收后方能浇注砼。砼试压块严格按规范要求一桩留置一组,并及时送检。(二)基本项目桩径大小等挖孔桩的施工容许偏差如下表:桩心直径D+50mm -50mm钢筋笼(主筋)保护层10mm垂直度偏差0.5%孔底沉碴容许厚度0桩成孔中心位移50mm(三)排水措施要求为使井内渗水及时排出,避免回流,经项目部商议决定,本半模施工排水措施如下: (1)少量渗水可在桩孔内挖小集水坑,随挖土随用吊桶,将泥水一起吊出;(2)大量渗水,可在桩孔内先挖较深集水井,设单相污水泵将地下水排出桩孔外,随挖土随加深集水井;(3)涌水量很大时,如桩较密集,可将一桩超前开挖使附近地下水汇

32、集于此桩孔内,用1-2台三相电动离心污水泵将地下水抽出,起到深井降水的作用,将附近桩孔地下水位降低;(4)渗水量较大,井底地下水难以排干时,底部泥渣可用压缩空气清孔方法清孔。六、安全注意事项 (1)、成立以项目经理、专职安全员、施工员、技术员组成的安全文明操作小组,负责半模安全生产、文明施工的领导工作。 (2)、所有机械设备由专人操作,安全防护罩配备齐全,接零接地保护齐全有效,动力和照明线分开设置,实行三相五线制,配电箱及主要设备设漏电保安器,有门落锁,由专人管理。施工现场的一切电源、电路使用漏电保护器,照明应采用安全矿灯或12V以下的安全灯。 (3)、在工程显眼部位,人多集中的地方及危险方位

33、,悬挂安全警告牌、标语,工人按规定使用三宝,现场搞好六日设防。 (4)、加强现场巡视检查,发现问题,及时通知有关人员消除安全隐患。 (5)、井口出土如用绞盘时,必须采用直径不小于16的坚韧钢丝绳扣牢固,要有安全掣动和吊钩装置。 (6)、在井口设水平移动盖板,当吊桶提升到离地面约0.5m,推动活动盖板关闭孔口,手推车,推至盖板上卸土后,再开盖板,下吊桶吊土,以防止坠物及操作人员掉入孔内伤人,采用三角绞车提升吊桶,桩孔四周应设安全围栏。 (8)、坚持井下排、送风先行,施工中不断向孔内输送足够的新鲜空气,必要时,抽送风同时进行。 (9)、井下设半边井的安全网,井内设置特制可靠的救生软梯,井下人员必须戴好安全帽,挖好或暂停施工时,井口应用盖板盖好。 (10)、井下通讯联络必须畅通,施工时保证井口有人,井下的工作人员,必须经常注意观察,检查井下是否存在塌方,涌水和流砂现象,以及空气和水污染情况,如发现异常情况,应停止作业,并通知甲方或报告上级及时处理。 (11)、根据地质条件考虑安全区作业,当孔内抽水量较大时,应密切注意出现流砂、流泥及孔壁坍塌的可能性。

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