fe[黑龙江]高层公寓楼基坑边坡土钉墙支护施工方案.doc

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1、measures planned implementation of technical protection measures and security schemes, the problems should be promptly reported to the Manager. 37th: carbon supervisor leadership and head of the company should periodically check the anti-accident measures planned, security technology protection meas

2、ures planned in implementation of measures against accidents and guarantee schemes, security technology protection measures planned in implementation. Seventh article 38th of education and training: new factory (company) production staff (including internships, commissioned officer), must be approve

3、d by the factory (company), workshop and team level safety education upon passing the examination before entering production site. Tertiary-level education after card registration, by the companys production technology section recovery archive, and reported to the company trade unions, safety record

4、. Training and examinations including the safe work procedures as well as relevant safety regulations, work environment and jobs there are risk factors, preventive measures and emergency treatment, and so on. The 39th article: new producers must receive the following training and qualified posts: (a

5、) the operating personnel, scheduling, must pass through the field point, institutional learning, on-site training and classes practice; (B) the maintenance, including technical staff, must undergo maintenance, technical specifications for learning and class practice; (C) special operations personne

6、l, must pass the national professional training, after obtaining a special operations qualifications before they can post. 40th: on-the-job training of production personnel: (I) post production staff should regularly carry out targeted of technical questions and answers, an accident expected on site

7、 training and anti-accident; (B) from running post 1 month and above the main post on duty or leave transportation . Drive system and security studies, arranged by upper management or organization of the examination. The 42nd article: June of every year once regulatory and safety procedures of the c

8、ompany system of examinations, examination the failed again, still not eligible waiting list study. Article 43rd: every year in June the work ticket issuer, assignee, licensee of work training, after passing the examination, as a formal announcement are eligible to work as ticket issuer, head of ins

9、pection, work permits and the right to a separate high-pressure equipment list, and reported to the Management Department. Failing the exam may not serve as a two person, stop classes, examinations before they can post. 44th: for breach of discipline system caused the accident, a kind of disorder an

10、d attempted serious responsibility for the accident, in addition to the relevant provisions dealing with should also be tasked to learn about a point system, and after passing the exam, before they can post. Article 45th: units of the company using the security video, slide projector, television, co

11、mputer, multimedia, radio, Billboard, artifacts, photo exhibitions, as well as security knowledge exam, lectures, contests, and other forms of advocacy, popularize the knowledge of security technology, targeted, Visual training, enhancing workers safety awareness and self-protection ability. Article

12、 46thHEIHEHENGJIGONGYUJIKENGTUDINGQIANGZHIHU SHIGONGZUZHISHEJI黑河恒基公寓基坑土钉墙支护施工组织设计黑河恒基公寓基坑土钉墙支护施工组织设计黑龙江省桩基础工程公司 目 录 一、 工程概况 二、 施工组织和施工布署 三、 基坑支护结构参数四、 土钉墙支护的施工工艺五、 质量保证措施及技术措施六、 施工进度计划及保证措施七、 安全技术措施 八、 主要机具设备计划九、 主要材料计划十、 现场生产组织机构一、工程概况1. 本工程位于黑河市爱辉区王肃街62号，原黑河印刷总厂院内。拟建的黑河恒基公寓为板式高层，地上26层，1层地下车库，平面上呈“

13、”字形。基坑开挖深度为5.77.7m，基坑平面尺寸约8026m。基坑东西两侧已采用混凝土排桩进行支护，南北两侧边坡现采用土钉墙支护。2. 建设单位：黑河市弘发房地产开发有限责任公司 施工单位：黑龙江省桩基础工程公司3. 水、用电量：水：20吨/日，电：160KW。4. 工程地质概况：详见工程岩土工程勘察报告。5. 主要执行规范：5.1建筑地基基础设计规范GB50007-2002；5.2建筑基坑支护技术规程JGJ120-99；5.3混凝土结构工程施工质量验收规范GB50204-2002；5.4钢筋焊接及验收规程JGJ18-2003。6. 工程量土钉墙工程量一览表层数土钉直径（mm）土钉长（m）数

14、量（根）水平间距（米）工程量（总延长米/层）第一层1007 2第二层10052第三层10042二、施工组织和施工部署1.该工程由黑龙江省桩基础工程公司负责管理施工，计划投入一台混凝土喷射机，并配有一座搅拌站等设备。工程实行项目经理负责制，下设技术负责人、带班工长、技术员、质检员、安全员、材料员等管理人员，在工程中推行项目法施工，根据生产要素优化组合与动态管理原则，对工程进行系统管理，施工过程中严格按照ISO9000国际质量认证标准及我单位有关受控文件和作业指导书对各工种、各工序建立质量管理体系，严格实行工作岗位责任制，各工种必须持证上岗，做好隐蔽工程及分项工程质量检查和验收工作，接受业主及监理

15、的检查，确保工程质量与施工进度。2.施工设备进场后，根据现场的具体条件，对施工所需的设备、库房、住所进行合理布置。 3.土钉墙支护工艺流程图：(见下图) 三、基坑支护结构参数根据本工程所处地理位置及基坑开挖深度、土层性质等情况，本工程南北两侧土钉墙支护结构如下：1.基坑北侧邻王肃街，基坑最深处为7.7m。该侧基坑边坡按1：0.2的坡度放坡，土钉层数3层，土钉长度分别为7、5、4m。土钉孔径为D=100mm，土钉钢筋直径为118mm螺纹钢，土钉注浆采用水灰比为0.6的水泥浆。土钉竖向间距分别为2、2、2m，水平间距均为2m。2. 基坑南侧基坑最深处为6.1m。该侧基坑边坡按1：0.2的坡度放坡，

16、土钉层数2层，土钉长度分别为7、5m。土钉孔径为D=100mm，土钉钢筋直径为118mm螺纹钢，土钉注浆采用水灰比为0.6的水泥浆。土钉竖向间距分别为2.5、2 m，水平间距均为2m。3.土钉施工采用洛阳铲人工成孔，一般为2人1组。现基坑已经开挖约5m，为方便施工及安全考虑，施工土钉时，必须用脚手架搭设施工平台，周围用防护网栏好。防止人员或杂物掉落伤人。4.土钉钢筋应露出土面60mm，预留弯钩长150mm，弯钩向上，以确保土钉力量的传递。（见剖面示意图）在L形钢筋内侧用12 mm螺纹钢筋与其他土钉钢筋连接，形成菱形拉筋网。5.土钉钢筋与菱形拉筋网铺设完毕后，在坡面上铺设间距为250 mm的钢筋

17、网格，钢筋直径为6.5。再在坡面上锚喷80mm100mm厚的C20混凝土。6.基坑坡顶向外做压顶平台，宽度2m。 土钉节点见下图：土钉墙剖面示意图四、土钉墙支护的施工工艺土钉墙支护施工包括两部分：压顶散水平台施工和坡面施工。（一） 压顶散水平台施工 压顶散水平台施工和坡面第一层护坡同时进行，首先将坡边上口外延2米处的土面清平，在距坡边1.95米处钉入长度为1米18的钢筋，钉入深度为0.9米，外留0.1米 ，间距为2米（沿基坑走向），18钢筋之间用12的钢筋连接，做拉筋。之后铺设6.5250 的钢筋网，最后按向外2%的坡度浇注混凝土，混凝土厚度为80-100mm。 （二）坡面施工 清理坡面定位成

18、孔插入土钉钢筋及注浆管注浆焊拉筋铺设钢筋网喷射混凝土养护1、清理坡面由于基坑已经开挖，在喷射混凝土前应以人工按1：0.2的坡比进行边坡修整。经现场技术人员测量合格后方可施工。2、定位在成孔前，必须按技术员指定的点位进行施工，土钉倾角为10度。3、成孔3.1采用洛阳铲取土成孔，取土到设计孔深，经现场技术人员测量合格后为成孔. 土钉的孔位、孔深、孔径及角度应满足设计要求；如成孔中遇塌孔导致土钉钢筋不能插入，应将土钉钢筋拉出，重新成孔；3.2水泥浆制作3.2.1本工程使用普通硅酸盐水泥，搅拌水泥浆的水泥进场后应按要求验收。3.2.2水泥浆按设计配制，注浆所用水泥浆的水灰比为0.6。3.2.3按给定的

19、水灰比确定每罐水和水泥的用量，并按要求加水和水泥。3.2.4搅拌机开动后，先加入水，再加入水泥进行充分搅拌，水泥搅拌时间不得小于3分钟。3.2.5水泥浆搅拌后必须用筛网过滤至存浆罐中方可使用，滤出的杂质及时清理，避免掉入存浆罐中。3.2.6水泥浆储存时，应不断搅动，减少水泥浆因静止产生沉淀，水泥浆储存时间不应大于水泥初凝时间。4、插入土钉钢筋及注浆管成孔后将钢筋及注浆管插入孔中，制作好的钢筋应保持干净不得沾有油污和泥土，按设计长度下料，弯勾后固定。5、注浆 注浆管的插入深度应在孔深的一半以上；注浆前应将孔内残土或松动的杂土清除干净，注浆开始或中途停止30min时，应用水或稀水泥浆润注压浆泵及其

20、管路。用压浆泵向孔内注纯水泥浆，其水灰比为0.6，注浆应满实。6、焊拉筋在L形钢筋内侧用12 mm螺纹钢筋与其他土钉预留的L型钢筋连接，形成菱形拉筋网。7、铺设钢筋网土钉的水泥浆产生一定强度后，进行修坡挂网，钢筋直径为6.5，敷设间距为250mm。钢筋网用绑线固定好，网片的搭接长度应满足规范钢筋的搭接要求。钢筋网与土钉的连接应牢固。8、喷射混凝土 喷射混凝土前应将坡面虚土清理干净，将按设计要求搅拌好的混凝土从每层土钉的底部向上顺序喷射。喷射混凝土时，喷头与受喷面应保持一定距离，距离宜为0.63.0m。坡面喷射混凝土厚度80100mm。五、质量保证措施及技术措施 1质量保证措施 1.1工程项目质

21、量目标:杜绝质量安全事故;防止不合格品的产生;保证工程一次交验合格率达到100%。 1.2严格按审定的施工组织设计施工 施工组织设计是工程施工大纲,是根据本工程的特点、技术要求、工程地质情况，现场施工条件等所作的具体指导,所以在工程施工中应认真做到以下几点: 1.2.1工程开工前应组织本工程管理人员、施工人员熟悉了解本工程的施工组织设计，使每个人对工程的总体要求明确,对本岗位的职责，质量要求和技术要求要做到心中有数。1.2.2严格按施工方案对实际操作者进行技术交底。1.2.3施工中突发事件，如遇地质条件与报告不符或遇到地下障碍物等，应立即与建设单位、设计单位沟通，待拿出具体可行的处理方法后方可

22、施工， 1.3加强施工现场质量管理;.按照ISO9002的标准要求,每天各个工序都在受控之中,另外建立质量管理体系,加强施工现场的管理力度,并做好以下几项工作： 1.3.1严格执行施工中的抽检，对不合格品及时处理。 1.3.2基准轴线，水准高程点，施工中的土钉桩位，必须经过建设单位或监理单位检验复核、认可合格后方可使用。 1.4严格对工序管理点的管理，各工序由项目经理部技术负责人统一分工、专人负责，制定标准化管理。严格工序之间的交接制度，保证工序质量，施工中应健全完善各工序之间的互检工作，下道工序负责人检查上道工序是否合格，不合格不准转入下道工序。 1.5原材料保证技术措施 1.5.1材料必须

23、有严格的验收质检制度，所购原材料的品名、牌号、产地、规格、批号、批量及生产日期必须与提交的相应的证明书吻合。2、技术措施2.1成孔深度以测量孔深为准,保证有效桩长。 2.2严格控制泥浆水灰比。 2.3根据图纸和已给定的控制点，来确定桩位点。3、成品保护措施3.1施工中成品钢筋应妥善安置，如果放置时间过长，应用彩条布覆盖或搭设防雨棚。3.2搅拌好的水泥浆存放时要有专人看管，保证随搅随用。六、施工进度计划及保证措施1施工进度计划(见施工进度计划表)2施工进度保证措施在施工中，除了安全、质量两大指标外，一切都要服从工期指标，并应根据此指标要求，指定如下施工进度保证措施： 2.1负责生产的项目经理对整

24、个工程施工进度要统筹全局，在生产指挥中，要抓住关键，合理布置机械设备，协调好各工序的相互配合，以保证施工顺利进行。 2.2动力维修人员加强对锚喷机、搅拌站的监护与检查,时刻注意设备的运行情况，保证设备的正常运转工作. 2.3供应部门要保证原材料供应及时,避免由于原材料的原因影响施工进度.项目经理要根据日完成工作量，计算出日所需的材料量，及时组织进料。材料的储备量不得少于5天的消耗量。七、安全技术措施 1安全目标本工程职业健康安全目标：杜绝重大伤亡事故，施工现场安全防护合格率100%，文明施工优良率100%，管理方案有效落实率100%。2重大危险源清单（见下表）3安全生产措施 3.1施工必须执行

25、切实可行的安全技术措施，工程开工前,由项目经理对全体人员进行现场施工安全教育。3.2进入施工现场应正确着装，严禁穿硬底易滑的鞋，高空作业应系好安全带，严禁违章作业或酒后作业。3.3保证施工的正常用电,必须有专业电工进行维修保养，夜间施工应有足够照明。3.4施工中严禁将水倒至修整的边坡上，而影响边坡的稳定；3.5在挖土和施工交叉作业时，应有专人指挥车辆通行。3.6在施工区及各重要设备上配灭火器,并定期检查。 3.7做好工人宿舍的防火工作,严禁私自乱接电线。 3.8现场临时用电,严格按“三相五线制”、“三级配电”、“两级保护”、“一机一闸”进行设置。 3.9安全员定期进行安全大检查,并做好记录.3

26、.10施工机具保证完好率,严禁带病运转. 3.11注浆前要检查泵的安全阀是否良好，进、排水其它各部螺丝是否拧紧。重大危险源清单 表五序号工序/部位/活动危害因素可能导致事故时 态状 态管理方式1用电设备电缆绝缘皮老化、破损触电伤人过去现在将来正常异常紧急制定管理方案2食用有毒食品食物中毒死亡过去现在将来正常异常紧急制定管理方案3用电设备漏电保护器 失灵触电伤人过去现在将来正常异常紧急制定管理方案4氧气、乙炔瓶距离过近爆炸伤人过去现在将来正常异常紧急制定管理方案 4文明施工措施 4.1施工现场布局合理、材料堆放整齐. 4.2现场内道路畅通,场地平整. 4.3工地的出入口应清洁卫生. 4.4施工区

27、与危险区应有醒目的警告标志,采取保护措施. 4.5食堂、宿舍、厕所、保持清洁卫生，建立轮流清扫制度。 5环境保护措施 5.1设专人接收水泥，避免水泥到处飞扬。八、主要机具设备计划 序号机械或设备名称型号规格数量型 号制造年份额定功率（KW）生产能力备注1洛阳铲52混凝土混合器12004303搅浆桶1省探矿2002224存浆桶1省探矿2002115电焊机直流22000406调直机120004.47空压机7m32003308九、主要材料计划 主要材料计划 序号名称规格单位数量备注1水泥P.O32.5R吨2钢筋18吨3钢筋12吨4钢筋6.5吨5豆石05mm立方米6砂子中砂立方米7 焊条J422/J5

28、07公斤8塑料管米十、现场生产组织机构1生产组织机构2安全生产文明施工组织机构3质量管理组织机构4 防火组织机构5现场紧急抢救小组regular issuance system of internal and external accident cases, organizational learning, analysis and discussion on a regular basis, and educate the persons concerned in a timely manner. 47th article: strengthening the safety of staff

29、, establishing the concept of legalization of production safety, establish a people-oriented concept, three do no harm (dont hurt yourself, no harm to others, not to be hurt). 48th eighth day routine: pre-shift and post-shift monitor organizations, safety assist. Before class: succession (started),

30、combined with shift operation and tasks for better risk analysis, arranged security account considerations. After class: summarizing comment on duty and the security situation, praise good deeds criticism ignored safety, illegal operations and other adverse phenomena, and completes the record. 49th:

31、 safety day event organized by the monitor, safety help, workshop leaders and checking activities. Classes (groups) or rotating a safety day event a week, activities to learn more about the superior file and the spirit of the meeting, informed of the accident, analysis of the company, workshop and f

32、ewer security incidents, as well as the typical illegal team, analysis of operation environment, there may be a risk factor for the main content. 50th: security analysis companies every quarter of a security analysis; shop at least once a month analysis, comprehensive analysis of production trends,

33、sum up lessons learned from and the weakness in safety management, accident prevention measures in the study. Meeting was chaired by enterprise security responsibility, concerning the participation of Heads of Department, workshop. Formation meeting and made public. 51st: security check for carbon c

34、ompanys periodic and non-periodic safety checks should be carried out. Periodic inspection includes fall and spring security checks, security checks should be combined with spring or autumn season characteristics and accident law . 52nd: security analysis companies should all be actively involved in

35、 the preparation of security advisories, bulletins, integrated security, analysis of accident law, drawing on lessons learned from. 53rd: the companys safety safety month activities each year according to the Governments requirements and deployment of the group, safety month activities focus on advo

36、cacy efforts to improve production safety and strengthen company-wide awareness of work safety, improve the safety awareness, improving the companys safety culture. 54th: units of the company in relation to the units actual, active use of risk analysis method, and is actively exploring new managemen

37、t tools for enterprises and job site safety analysis, identify weaknesses and potential accidents and take preventive measures in a timely manner. 55th: units of the company against the possibility of seriously affecting the safety of emergency contingency plans, and actively prepared for the critic

38、al work, ensure that the critical situation occurred after relief, rescue and recovery work in an orderly manner. 56th Nineth day construction project: company or project, the implementation of construction projects legal and construction team joint management of construction site safety of principle. Identified under the project bear this organizing, coordinating and oversight responsibilities; HEILONGJIANGSHENGZHUANGJICHUGONGCHENGGONGSI黑龙江省桩基础工程公司