qo人三工挖孔桩超深专项施工方案 2.doc

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1、step shape, control of step size, set aside a decoration project, to run up and down the stairs the same faade stepping angle. 4.4 reverse triangular plate is in the Middle bench, reinforcement time side boards. Reverse triangular plates consist of a number of triangular pieces of wood nailed to the

2、 wood, and two triangular wood blocks high and wide of the right angle equal to step on a side, timber section for 50mmx100mm and third corner Board with bench support cross-ridged fixed between the side plates. 4.4 (1) expansion joints template support set: first support good expansion joints side

3、of wall template (wall sides are for multilayer Board), stay its concrete pouring Hou, will its template demolition, again support another side wall template, but this wall by expansion joints side with 200 thick high-density squeeze plastic poly benzene Board for template, another side for multilay

4、er Board, expansion joints North-South State surface the with 200x200 thick multilayer Board box for across die, to control expansion joints of upper and lower vertical degrees. 4.4 (2) treatment of construction joints: this construction is not the principle of construction joints, such as construct

5、ion joints, subject to the following requirements: construction joint in beam and plate with steel mesh or wood-mode blocked. Attention to the retention of construction joints must be perpendicular to the axis of the beam and plate, shall remain oblique Cha. Before the next concrete pouring, constru

6、ction joints of concrete should be cutting hair, and loose stones should be left floating pulp, water and moist. 5 construction considerations 5.1 template installation, upper and lower column formwork system should be installed on the same vertical line. 5.2 templates on each floor after installati

7、on, should release agent brush template. 5.3 for the joints is greater than 2mm, paste the crack tape. 5.4 no hard hit when stripping pry, to prevent damage to the template and the pouring of concrete. 6 quality standard for reached concrete of standard, we according to concrete structure engineerin

8、g construction quality acceptance standard (GB50204-2002) developed has internal control standard, as Xia by shows: concrete quality internal control standard project allows deviation national standards internal control standard axis location 5 3 end of die Shang surface elevation 5 3 adjacent two B

9、oard surface level poor 2 2 surface flat degrees 5 3 pre buried plate center line location 3 3 pre buried tube, and reserved hole center line location 3 3 pre buried bolt center line location 2 2 Exposed length +10,0 +10,0 reserved hole center line position 10 10 section size +10,0 +10,0 reinforcing

10、 the centerline location 5 5 exposed length +10,0 +10,0 die frame support must have sufficient strength, rigidity and stability, supporting parts must have sufficient support area. Template size is accurate, seam marks neat and orderly. Structures of yin and Yang founder straight, joint width shall

11、not exceedWe will continue to improve the companys 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

12、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 zer

13、o resistance. To 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

14、 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 of training, improve employees application information system of capacity and level. Humanistic care to ensure zero. To

15、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 employees life; strengthening health and labour protection, organization career he

16、alth 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. To strengthen risk management, ensure that the bu

17、siness of zero risk. To strengthened 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

18、; 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 st

19、andardize trading, and strive to achieve according to law, standardize and fair. Innovation of performance management, to ensure that potential employees zero fly. To strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve perf

20、ormance management. To further quantify and refine employee standards . Work, full play party, and branch, and members in five type Enterprise construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening four good leadership construction, full pl

21、ay levels cadres in enterprise development in the超深人工挖孔桩专项施工方案报审表工程名称：六盘水市钟山区凤凰新苑公租房 致： 贵州正业工程技术投资有限公司 ：（监理单位）我方根据施工合同有关规定完成了 纳雍县左鸠嘎乡福和希望小学超深人工挖孔桩专项施工方案的编制，并经我单位上级技术负责人审查批准，请予以审查。附件：超深人工挖孔桩专项施工方案 承包单位（章）： 项 目 经 理： 日 期： 专业监理工程师审查意见：专业监理工程师： 日 期： 总监理工程师审查意见：项目监理机构： 总监理工程师： 日 期： 纳雍县左鸠嘎乡福和希望小学超深人工挖孔桩专项施

22、工方案编制人: 职务： 校对人： 职务： 审核人： 职务： 审批人： 职务： 四川金海建设有限公司二一二年二月二十五日and tamping, clear template prior to placing the debris, and water wet template; control since the height of the concrete shall not exceed 1.5M; dense wall bushing with the same level of fine aggregate concrete for pouring concrete pouring,

23、pouring top layered slopes and adjacent two layers of pouring interval must not exceed 1h. Strengthen the maintenance of waterproofing concrete, the baseboard after the concrete has been poured, immediately cover it with plastic sheeting and strengthening conservation. Strengthen the construction qu

24、ality control of construction joints, horizontal construction joints for Foundation slab, set plate sealing strip, the construction of water stop steel concrete compacting. In front of the poured concrete walls, the joint surfaces for cutting hair, remove floating particles, and rinse to keep moist.

25、 VI reinforcement Engineering (a) steel raw material requirements of the engineering design of main structure of steel primary steel and grade of steel. Steel comes into play, should be accompanied by the manufacturers quality certificate, and Visual inspection by the engineering technology, materia

26、ls, personnel, including specifications, diameter tolerance, have no cracks, pores, surface corrosion. In all of steel quality certificate complete Shi, by test room by batch sampling do retest, each bulk is unlikely to Yu 60t, each acceptance batch in the take sample a group, including 2 root pull,

27、 and 2 root bent try pieces, 5 root size, and weight try pieces, try pieces from any three root (or two disc) steel in the interception, each root steel Shang cutstep shape, control of step size, set aside a decoration project, to run up and down the stairs the same faade stepping angle. 4.4 reverse

28、 triangular plate is in the Middle bench, reinforcement time side boards. Reverse triangular plates consist of a number of triangular pieces of wood nailed to the wood, and two triangular wood blocks high and wide of the right angle equal to step on a side, timber section for 50mmx100mm and third co

29、rner Board with bench support cross-ridged fixed between the side plates. 4.4 (1) expansion joints template support set: first support good expansion joints side of wall template (wall sides are for multilayer Board), stay its concrete pouring Hou, will its template demolition, again support another

30、 side wall template, but this wall by expansion joints side with 200 thick high-density squeeze plastic poly benzene Board for template, another side for multilayer Board, expansion joints North-South State surface the with 200x200 thick multilayer Board box for across die, to control expansion join

31、ts of upper and lower vertical degrees. 4.4 (2) treatment of construction joints: this construction is not the principle of construction joints, such as construction joints, subject to the following requirements: construction joint in beam and plate with steel mesh or wood-mode blocked. Attention to

32、 the retention of construction joints must be perpendicular to the axis of the beam and plate, shall remain oblique Cha. Before the next concrete pouring, construction joints of concrete should be cutting hair, and loose stones should be left floating pulp, water and moist. 5 construction considerat

33、ions 5.1 template installation, upper and lower column formwork system should be installed on the same vertical line. 5.2 templates on each floor after installation, should release agent brush template. 5.3 for the joints is greater than 2mm, paste the crack tape. 5.4 no hard hit when stripping pry,

34、 to prevent damage to the template and the pouring of concrete. 6 quality standard for reached concrete of standard, we according to concrete structure engineering construction quality acceptance standard (GB50204-2002) developed has internal control standard, as Xia by shows: concrete quality inter

35、nal control standard project allows deviation national standards internal control standard axis location 5 3 end of die Shang surface elevation 5 3 adjacent two Board surface level poor 2 2 surface flat degrees 5 3 pre buried plate center line location 3 3 pre buried tube, and reserved hole center l

36、ine location 3 3 pre buried bolt center line location 2 2 Exposed length +10,0 +10,0 reserved hole center line position 10 10 section size +10,0 +10,0 reinforcing the centerline location 5 5 exposed length +10,0 +10,0 die frame support must have sufficient strength, rigidity and stability, supportin

37、g parts must have sufficient support area. Template size is accurate, seam marks neat and orderly. Structures of yin and Yang founder straight, joint width shall not exceedof backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of

38、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, esta

39、blish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. To 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 calen

40、dar 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 past one another across a railing, we are enthusiastic and ful

41、l 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 th

42、e Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happy 目录1 编制依据及原则11.1编制依据11.2编制原则12工程概况22.1工程简介22.2 工程地质条件22.3 施工特点33 施工安排33.1 施工主要管理人员安排33.2 施工人员组织43.3 施工机械安排43.4 主要技术方案选择44 施工工艺及方法54.1 施工工艺流程54.2桩施工顺序64.3施工准备64.4 施工方法74.5 质量要求124.6施工注意

43、事项135 专项安全保证措施145.1 项目安全保证体系145.2 人工挖孔桩施工危险源分析及预防措施45.3 人工挖孔桩安全保障措施75.4 应急救援106 文明施工及环保措施156.1 现场文明施工要求156.1 环保水保措施15 1 编制依据及原则1.1编制依据1、建筑桩基技术规范JGJ94-20082、建筑施工安全检查标准JGJ59-993、建筑地基基础工程施工质量验收规范GB50202-20024、混凝土结构施工质量验收规范GB50204-20025、混凝土强度检查评定标准GBJ107-20076、混凝土质量控制标准GB50164-927、普通混凝土配合比设计规程JGJ55-2000

44、8、钢筋焊接及验收规程JGJ18-20039、工程测量规范GB50026-200710、建筑安装工程质量检验评定统一标准GB50300-200111、建筑机械使用安全技术规程JGJ33-200112、施工现场临时用电安全技术规范JGJ46-200513、桩基低应变动力检测规程JGJ/T93-9514、招标文件、设计图纸及资料、地质勘察报告、施工组织设计；建设单位、设计单位、监理单位的相关文件要求。1.2编制原则(1) 严格遵守相关规范、规程和规则等技术标准并将其贯穿于整个施工过程中。(2) 结合现场调查情况及我单位承诺的工期、质量、安全等各方面要求，制定出完善的保证体系和保证措施，确保该项目标

45、的实现。 (3) 充分考虑气候、季节对施工的影响，合理安排各工序顺序，做到全面展开，平行流水作业；正确选用施工方法，科学组织。各工序紧密衔接，避免不必要的重复工作，以保证施工连续均衡有序进行。(4) 坚持在实事求是的基础上，力求技术先进、科学合理、经济适用的原则。在确保工程质量标准的前提下，确定经济施工方法，积极采用新技术、新工艺、新机具、新材料、新测试方法。(5) 建立健全质量管理体系和制度，配备专职质检人员进行全过程控制；工程质量符合国家、交通部现行的质量验收标准和工程建设标准强制性条文。(6) 坚持安全、文明施工，注重环境和水土保持，争创“六盘水市建筑安全文明工地”。2工程概况2.1工程

46、简介我公司承建的纳雍县左鸠嘎乡福和希望小学公租房工程，位于贵州省纳雍县左鸠嘎乡，本工程，地上住宅层数为4层，建筑总面积为560.00平方米，建筑占地面积为220.00平方米,建筑结构形式为砖混结构，建筑结构安全等级为二级，设计使用年限为50年；基础孔桩为直径1000，人工挖孔端承桩,14根，持力层为中风化石灰岩，桩身砼强度为C30。根据危险性较大的分部分项工程安全管理办法建质200987号的规定，开挖桩孔深度超过16m的桩属于超深人工挖孔桩基，本工程设计深度超过16m的桩基统计如下：表2-1：深度大于16m桩统计表编号桩径（mm）数量最大桩长1100014根23.3m2342.2 工程地质条件

47、2.2.1 地形及地质情况地质结构面上为杂填土，厚度为1.98m4m,中部为强风化泥岩，厚度为5m20.11m,底部为中风化/微风化灰岩。经钻探勘察揭示，自上而下的地层划分如下：第（1）层杂填土：由建筑垃圾、生活垃圾、粘土及碎石等组成，结构松散，均匀性差。少数块石大者为100200cm等。第（2）层强风化泥岩：强风化岩层，棕红色，岩性以泥质粉砂岩泥岩为主，风化强烈，裂隙发育，呈半岩半土状，局部夹全风化岩。第（3）层中风化灰岩：灰色、浅灰色，薄至中厚层，钙质胶结，岩石较硬，结构部分破坏，层面、节理有渲染和变色，风化裂隙发育，岩体较破碎，岩心呈柱状和少量块状。为场地主要岩层。2.2.2水文、气候2.2.1气象毕节市纳雍县为亚热带季风气候。气候特点是：整体气温变化幅度小，冬无严寒夏无酷暑，年均温13-14，1月均温3.0-6.3，7月均温19.8-22.0。无霜期230-300天。降雨量1200-1500毫米。地形起伏较大，局部地区气候差异明显。2.2.2 施工特点（1