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1、电梯顶板混凝土及墙拆除施工方案 2电梯顶板混凝土及墙拆除施工方案 1。 工程概况 (1）、工程名称：光谷世界城B地块 （2）、工程地点：武汉市武昌 (3）、总承包商:武汉市世界城置业有限公司 （4)、设计单位:武汉和创建筑工程设计事务所有限公司 (5)、监理单位： （6)、建设单位：锦宸集团 (7）、改造加固单位:武汉平浩建筑科技有限公司 (8）、工程内容:根据业主需用，由武汉和创建筑工程设计事务所有限公司设计，将光谷世界城B地块2区六层部分楼板静态拆除,见下图斜线部位: 编制依据 1、施工图变更图 2、建筑工程施工质量验收统一标准(GB503002001) 3、混凝土结构加固技术规范（CEC
2、S25：90） 4、湖北省建筑工程施工现场安全管理标准 constant volume with distilled water to the scale。 1.1.2 methyl aniline solution： weigh When preparing。 2.2 instruments： ultraviolet spectrophotometer （284nm，336nm）. 2.3 sample liquid of preparation said take samples 5 g （accurate to 0。001g）， with about 25mL water dissolv
3、ed and moved into 50mL capacity bottle in the, joined 0。5mL clarified agent I, mixed, again joined 0。5mL clarified agent II， mixed， water diluted to scale (necessary Shi can joined 1 drops ethanol to elimination surface of bubble). mixed uniform, filter, abandoned to initially of 10mL filtrate。 2。4
4、operation program draw filtrate the 5mL Yu 2 a tube (diameter 18mm， long 150mm) workers, in a tube in the joined 5mL sulfite hydrogen sodium solution (0.2%), mixed uniform as parameter than liquid。 another tube in the joined 5mL distilled water, mixed uniform, as stay measuring liquid。 then with par
5、ameter than liquid for control, Yu purple outside points light photometer wavelength 284nm and 336nm at, determination stay measuring liquid of sucking photometric （if sucking photometric is greater than 0。6, is with distilled water diluted stay measuring liquid, with 0.2 Sodium bisulfite similarly
6、diluted reference solution， calculate the absorbance when multiplied bythedilutiofactor)。 2。5 results calculationhydroxymethyl（6)； （6） in the formula: hydroxymethyl furfural content in the X-sample， mg/100 g； 14。97-conversion factor; 5、建筑施工扣件式钢管脚手架安全技术规范（JGJ130-2001） 6、混凝土结构后锚固技术规程(JGJ1452004）。 7、建筑
7、施工安全检查标准（JGJ59-99） 8、建筑施工高处作业安全技术(JGJ80，91） 9、钢结构设计规范（GB500172003) 2。 施工部署； 2。1。施工组织安排 根据施工现场实际情况，在合理统筹安排且确保工程总体工期的前提下，配合现场水电、消防施工。组织施工时从下向上施工，为加快施工进度,可几层同时施工。 2。2。施工重点、难点 工程中楼板静态拆除为施工的重点,脚手架搭设为难点。 2。3.劳动力安排计划 为保证本工程的工期质量要求，在合理安排工序和劳动力的前提下，选择技术素质高且具有类似工程施工经验的队伍.现场施工人员安排如下图所示： 序号 名称 人数 备 注 1 技术人员 3 全
8、面负责施工现场技术管理、施工质量、施工变更及洽商等事宜 2 现场班长 3 负责水钻切割、植筋、剔凿、配胶等施工管理工作 3 安 全 员 1 全面负责施工现场安全、消防、文明施工及工人食宿等工作 4 技术工人 30 水钻切割、植筋、剔凿等工作 5 放 线 工 2 负责切割放线工作 6 电 工 1 负责现场安全用电 7 普 工 6 负责施工现场搬运、渣土清理等工作 8 钢筋工 20 负责钢筋的加工、绑扎 9 木工 15 负责支模、拆模 10 砼工 10 负责砼浇筑 11 架工 20 负责脚手架搭设、拆除 2.4。主要设备安排计划 序号 设备名称 规 格 型 号 单 位 数 量 新旧程度 1 水 钻
9、 - 台 20 半新 2 打磨机 牧田9526NB 台 20 半新 3 吹风机 Q1FJWB20028 把 10 半新 4 电 锤 博士11D、7D 把 10 半新 5 配电箱 - 台 10 半新 constant volume with distilled water to the scale. 1。1.2 methyl aniline solution： weigh When preparing。 2。2 instruments: ultraviolet spectrophotometer (284nm,336nm）. 2.3 sample liquid of preparation sa
10、id take samples 5 g (accurate to 0。001g）， with about 25mL water dissolved and moved into 50mL capacity bottle in the， joined 0。5mL clarified agent I， mixed， again joined 0.5mL clarified agent II， mixed， water diluted to scale （necessary Shi can joined 1 drops ethanol to elimination surface of bubble
11、). mixed uniform， filter， abandoned to initially of 10mL filtrate。 2。4 operation program draw filtrate the 5mL Yu 2 a tube （diameter 18mm, long 150mm） workers, in a tube in the joined 5mL sulfite hydrogen sodium solution （0。2）， mixed uniform as parameter than liquid. another tube in the joined 5mL d
12、istilled water， mixed uniform, as stay measuring liquid. then with parameter than liquid for control， Yu purple outside points light photometer wavelength 284nm and 336nm at, determination stay measuring liquid of sucking photometric (if sucking photometric is greater than 0.6, is with distilled wat
13、er diluted stay measuring liquid, with 0。2 Sodium bisulfite similarly diluted reference solution， calculate the absorbance when multiplied bythedilutiofactor）. 2。5 results calculation-hydroxymethyl（6)； （6） in the formula： hydroxymethyl furfural content in the X-sample, mg/100 g; 14.97-conversion fac
14、tor; 3. 主要分项施工方法及技术要点 3.1。楼板水钻切割工程285382789 3.1。1. 施工工艺 定位与划线 不正确 复查切割部位确保拆除位置准确无 误 做好临时支护及防护措施 用切割机或水钻钻孔切割 破损砼 检查 合格 4.2拆除原则 拆除原结构构件施工原则：自上向下,逐层进行;现拆除非承重构件再拆除承重构件；拆除施工前明确是否需要支撑卸荷，先卸荷再拆除。 4。3.脚手架搭设 本工程拆除部分脚手架搭设主要是维护架。维护架体系为施工过程中施工用操作脚手架及安全防护脚手架. （1) 在拆除之前先期在结构外侧面搭设维护脚手架设施，脚手架外立杆作剪刀撑，确保脚手架牢固可靠。 （2) 在
15、进行楼板的拆除作业之前,首先在板下搭设满堂脚手架，竖杆双向间距1.2m，距地面0。15m设扫地杆一道，水平杆间距不大于1.5m。顶层横杆距constant volume with distilled water to the scale. 1.1.2 methyl aniline solution: weigh When preparing. 2。2 instruments: ultraviolet spectrophotometer （284nm，336nm）。 2.3 sample liquid of preparation said take samples 5 g (accurate
16、to 0。001g）, with about 25mL water dissolved and moved into 50mL capacity bottle in the, joined 0。5mL clarified agent I, mixed, again joined 0。5mL clarified agent II, mixed, water diluted to scale （necessary Shi can joined 1 drops ethanol to elimination surface of bubble）。 mixed uniform， filter， aban
17、doned to initially of 10mL filtrate。 2。4 operation program draw filtrate the 5mL Yu 2 a tube （diameter 18mm, long 150mm） workers， in a tube in the joined 5mL sulfite hydrogen sodium solution (0.2%）， mixed uniform as parameter than liquid. another tube in the joined 5mL distilled water, mixed uniform
18、， as stay measuring liquid. then with parameter than liquid for control， Yu purple outside points light photometer wavelength 284nm and 336nm at, determination stay measuring liquid of sucking photometric （if sucking photometric is greater than 0。6， is with distilled water diluted stay measuring liq
19、uid， with 0。2 Sodium bisulfite similarly diluted reference solution， calculate the absorbance when multiplied bythedilutiofactor). 2。5 results calculation-hydroxymethyl（6); （6) in the formula: hydroxymethyl furfural content in the Xsample, mg/100 g； 14。97-conversion factor； 离结构板底约400500mm，满铺脚手板，防止在拆
20、除过程中混凝土块损坏下层楼板. (3） 脚手架搭设伴随拆除施工进度进行，流水作业，避免造成施工中的延误。 1.3混凝土结构静力拆除 （1) 使用液压钳结合水钻破碎或水钻钻孔切割分块的方法将原混凝土结构拆除，采用液压钳拆除时，不可某一部位一钳到底。 (2) 将混凝土碎块清运到地面，并及时清运至现场指定垃圾堆放地点。 2。 水钻切割施工工艺 （1） 工艺流程 定位放线？切割块体划分？作业水排放措施？准备作业水？固定切割设备？试切割?调整设备？切割?切割块体清运 （2) 施工过程 开始切割施工前，先搭设脚手架做好施工平台。 1） 放线、验线 由专业人员放线确定所要切割混凝土的具体位置,报请各有关单位
21、验收，并由相关人员检验。 2） 切割分块 本工程楼板和梁切割开洞是室内施工，不具备利用大型起重设备和运输设备的条件，基本以人工操作为主,因此切割分块不宜过大，切割拆除后外运，故此部分切割块为150kg/块左右。分块尺寸不宜大于500mm500mm。 3） 切割 明确所要保留混凝土板、墙的部位，使水钻刀头按所放线体相切，连续钻孔。水钻孔保证至少相割5mm。 4) 清运混凝土块体 constant volume with distilled water to the scale. 1。1.2 methyl aniline solution： weigh When preparing. 2。2 in
22、struments： ultraviolet spectrophotometer (284nm，336nm). 2.3 sample liquid of preparation said take samples 5 g （accurate to 0.001g）， with about 25mL water dissolved and moved into 50mL capacity bottle in the， joined 0。5mL clarified agent I， mixed, again joined 0。5mL clarified agent II, mixed, water
23、diluted to scale （necessary Shi can joined 1 drops ethanol to elimination surface of bubble)。 mixed uniform, filter, abandoned to initially of 10mL filtrate. 2。4 operation program draw filtrate the 5mL Yu 2 a tube （diameter 18mm, long 150mm) workers, in a tube in the joined 5mL sulfite hydrogen sodi
24、um solution （0。2), mixed uniform as parameter than liquid. another tube in the joined 5mL distilled water, mixed uniform, as stay measuring liquid。 then with parameter than liquid for control， Yu purple outside points light photometer wavelength 284nm and 336nm at, determination stay measuring liqui
25、d of sucking photometric （if sucking photometric is greater than 0。6， is with distilled water diluted stay measuring liquid, with 0。2% Sodium bisulfite similarly diluted reference solution， calculate the absorbance when multiplied bythedilutiofactor）. 2。5 results calculation-hydroxymethyl(6); (6） in
26、 the formula: hydroxymethyl furfural content in the X-sample， mg/100 g; 14。97conversion factor; 将水钻切割分离的混凝土块体自墙板上卸下，一般采用大绳结合手动葫芦，缓慢放置于结构承重楼板,禁止高处自由下落。 5) 剔凿边角混凝土,水钻切割后的尖角采用人工剔凿修平.基本保证不留曲牙(水钻齿孔边)。 (3） 质量要求 1） 按所放线体切割混凝土，不得随意变动,未经监理单位许可禁止随意扩大切割范围。 2） 切割工作完成后,经自检合格后，报请有关单位验收。 （4) 安全要求： 1) 施工前明确所切割混凝土分割
27、的体积和重量，以便于搬运. 2) 合理的组织安排好电源、水钻及冷水的排放工作,防止触电。水电由甲方制定位置引出，不随意接引。 水钻拆除图例 constant volume with distilled water to the scale。 1。1。2 methyl aniline solution： weigh When preparing. 2。2 instruments： ultraviolet spectrophotometer （284nm,336nm). 2。3 sample liquid of preparation said take samples 5 g (accurate
28、 to 0.001g), with about 25mL water dissolved and moved into 50mL capacity bottle in the， joined 0.5mL clarified agent I, mixed， again joined 0。5mL clarified agent II, mixed， water diluted to scale (necessary Shi can joined 1 drops ethanol to elimination surface of bubble). mixed uniform, filter, aba
29、ndoned to initially of 10mL filtrate. 2.4 operation program draw filtrate the 5mL Yu 2 a tube (diameter 18mm, long 150mm） workers， in a tube in the joined 5mL sulfite hydrogen sodium solution (0。2%), mixed uniform as parameter than liquid. another tube in the joined 5mL distilled water， mixed unifor
30、m, as stay measuring liquid。 then with parameter than liquid for control, Yu purple outside points light photometer wavelength 284nm and 336nm at, determination stay measuring liquid of sucking photometric (if sucking photometric is greater than 0.6, is with distilled water diluted stay measuring li
31、quid, with 0。2% Sodium bisulfite similarly diluted reference solution, calculate the absorbance when multiplied bythedilutiofactor）. 2。5 results calculationhydroxymethyl(6）; （6) in the formula： hydroxymethyl furfural content in the Xsample， mg/100 g； 14.97-conversion factor; 3. 液压钳拆除施工工艺 （1) 工艺流程 搭设
32、维护脚手架?定位放线？水钻开施工洞口?调整液压泵电机转向？连接油管接口?液压钳动作夹碎混凝土?割断原钢筋？拆除构件边缘剔凿 液压泵图片介绍 constant volume with distilled water to the scale. 1。1.2 methyl aniline solution： weigh When preparing。 2。2 instruments： ultraviolet spectrophotometer （284nm，336nm). 2.3 sample liquid of preparation said take samples 5 g （accurate
33、 to 0。001g), with about 25mL water dissolved and moved into 50mL capacity bottle in the， joined 0。5mL clarified agent I， mixed, again joined 0.5mL clarified agent II， mixed， water diluted to scale （necessary Shi can joined 1 drops ethanol to elimination surface of bubble）。 mixed uniform, filter, aba
34、ndoned to initially of 10mL filtrate。 2.4 operation program draw filtrate the 5mL Yu 2 a tube （diameter 18mm， long 150mm） workers， in a tube in the joined 5mL sulfite hydrogen sodium solution （0。2）， mixed uniform as parameter than liquid. another tube in the joined 5mL distilled water， mixed uniform
35、, as stay measuring liquid. then with parameter than liquid for control， Yu purple outside points light photometer wavelength 284nm and 336nm at， determination stay measuring liquid of sucking photometric (if sucking photometric is greater than 0。6, is with distilled water diluted stay measuring liq
36、uid， with 0。2% Sodium bisulfite similarly diluted reference solution, calculate the absorbance when multiplied bythedilutiofactor）. 2.5 results calculation-hydroxymethyl（6）； (6) in the formula： hydroxymethyl furfural content in the X-sample， mg/100 g; 14.97-conversion factor; (2) 水钻开施工洞 液压钳施工前需用水钻静力
37、切割开洞。施工洞一般位于楼板边缘，洞口尺寸不小于10001000mm，便于施工。 （3） 液压钳破碎 选用符合欲拆除构件尺寸的液压钳，将钳体与液压泵用油管连接可靠,开启液压泵,张开钳口,夹进混凝土构件，一般夹进宽度为50100mm.改变液压油流向，加紧钳口，破碎混凝土。加压限值一般为80Mpa，频繁超出限值容易毁坏设备和造成工人伤害。破碎过程中配合切割工具割掉原结构钢筋，便于液压钳移动施工。 (4) 边缘剔凿 液压钳破碎至构件或洞口边缘，停止破碎，用电镐等工具剔凿遗留混凝土，按照要求保留或割掉钢筋。 安全防护措施 建立健全安全管理体系根据安全生产的要求，建立行之有效的安全施工保证体系（安全生产
38、保证体系参见附图5:安全保证措施框图).各级人员相互协调并相互监督，层层落实，步步落实。 (1） 建立以项目经理为首的安全施工决策与指挥保证体系; （2） 建立以安全生产部门为首的施工指挥保证体系; (3） 各施工队根据不同施工时期,不同项目的特点,建立专群结合的安全监督保证体系。 加强安全施工管理工作 项目经理部成立以项目经理为组长的安全生产领导小组，制订行之有效的安全管理制度，确保施工安全： constant volume with distilled water to the scale. 1。1。2 methyl aniline solution： weigh When prepari
39、ng。 2.2 instruments: ultraviolet spectrophotometer （284nm，336nm）. 2。3 sample liquid of preparation said take samples 5 g （accurate to 0.001g）， with about 25mL water dissolved and moved into 50mL capacity bottle in the， joined 0.5mL clarified agent I， mixed, again joined 0.5mL clarified agent II, mix
40、ed, water diluted to scale (necessary Shi can joined 1 drops ethanol to elimination surface of bubble)。 mixed uniform, filter， abandoned to initially of 10mL filtrate。 2。4 operation program draw filtrate the 5mL Yu 2 a tube (diameter 18mm， long 150mm) workers， in a tube in the joined 5mL sulfite hyd
41、rogen sodium solution (0.2%), mixed uniform as parameter than liquid. another tube in the joined 5mL distilled water， mixed uniform, as stay measuring liquid. then with parameter than liquid for control, Yu purple outside points light photometer wavelength 284nm and 336nm at, determination stay meas
42、uring liquid of sucking photometric （if sucking photometric is greater than 0。6， is with distilled water diluted stay measuring liquid， with 0.2 Sodium bisulfite similarly diluted reference solution, calculate the absorbance when multiplied bythedilutiofactor). 2。5 results calculation-hydroxymethyl(
43、6）; （6) in the formula: hydroxymethyl furfural content in the X-sample, mg/100 g; 14。97-conversion factor; (1) 切实做好安全教育，对参加施工的全体人员进行入场教育,使之熟悉各自工种的安全操作规程；并搞好宣传教育工作，使参加施工的所有人中有高度的安全意识. (2) 建立现场安全生产责任制,坚持指挥施工必须管理安全工作的原则，严格执行安全操作规范。 （3) 加强对现场安全施工的检查和督促，任命一名责任心强的人员任安全员，保护好现场的设备及管线。 （4) 施工班组、施工队要根据每个阶段施工的
44、不同情况制订切实可行的安全措施。 安全施工目标 达到五无目标，即“无死亡事故，无重大伤人事故，无重大机械事故，无火灾，无中毒事故”。 建立安全生产管理措施 安全责任制度 项目经理对整个工程安全负责，具体组织实施各项安全措施和安全制度；分管技术的项目工程师负责组织安全技术措施的编制和审核、安全技术交底和安全技术教育;工地设专职安全管理人员二名，负责日常安全管理和安全监督；施工员对施工范围内的安全生产负责,贯彻落实各项安全技术措施.做到各专业人员有岗位职责,操作班组、班长、安全组干事以至每个工人都有安全职责。 安全教育、交底制度: (1） 项目经理部使用外包工、临时工，必须经公司审核，办理有关进场
45、安全教育，符合条件的人公司发放临时上岗证上岗。 (2） 对项目部新招聘的人员，由项目部劳动部门负责,安全部配合安全教育，各专业队、班组进行本专业安全教育及入场教育，合格后，方可上岗操作,并建立劳动保护卡，对未经三级教育的人员,班组应拒绝分配工作。 （3） 对特种作业人员(电工、焊工、架子工等)，必须经培训考试合格后，持证上岗. （4) 项目部每月组织召开一次安全会，传达上级文件精神，总结前期的安全情况，布置constant volume with distilled water to the scale. 1.1.2 methyl aniline solution： weigh When pr
46、eparing。 2.2 instruments： ultraviolet spectrophotometer （284nm,336nm)。 2。3 sample liquid of preparation said take samples 5 g （accurate to 0。001g）， with about 25mL water dissolved and moved into 50mL capacity bottle in the， joined 0.5mL clarified agent I, mixed， again joined 0.5mL clarified agent II
47、, mixed, water diluted to scale （necessary Shi can joined 1 drops ethanol to elimination surface of bubble）. mixed uniform, filter, abandoned to initially of 10mL filtrate。 2。4 operation program draw filtrate the 5mL Yu 2 a tube （diameter 18mm， long 150mm） workers， in a tube in the joined 5mL sulfit
48、e hydrogen sodium solution (0.2）， mixed uniform as parameter than liquid. another tube in the joined 5mL distilled water， mixed uniform， as stay measuring liquid。 then with parameter than liquid for control， Yu purple outside points light photometer wavelength 284nm and 336nm at, determination stay measuring liquid of sucking photometric （if sucking photometric is greater than 0。6, is with distilled water diluted stay measuring liquid， with 0。2 Sodium bisulfite similarly diluted reference solution, calculate the absorbance when multiplied bythedilutiofactor）。 2
