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Zhejiang Province Chimney Writing and Drawing Company Chimney Painting Aviation Logo Paint Unit

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锦峰高空
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JiangsuYancheng City
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Jiangsu Jinfeng Aerial Engineering Co

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Product Details
浙江省烟囱写字画图公司烟囱涂刷航空标志油漆单位

烟囱新建单位工程施工人工机械拆除钢筋混凝土烟囱

浙江省杭州人工拆除钢筋混泥土烟囱施工公司,宁波温州拆除水泥砼结构混凝土烟囱施工单位,绍兴湖州人工拆除废弃旧砖烟囱施工厂家,嘉兴烟囱加固维修安装,台州专业施工30米—240米烟囱工程施工措施及施工方案,丽水资质证书齐全。

1、建设单位:南京雨润集团苏州热电有限公司

2、施工单位:江苏锦峰高空工程有限公司 

3、工程名称:180米钢筋混凝土烟囱拆除工程

4、建设地点:南京雨润集团苏州热电有限公司院内

5、项目经理:刘界新 技术咨询:183 0510 2533  

锦峰高空工程资质具备:

安全生产许可证一级

高空作业工程专业承包;

高耸构筑物工程专业承包;

机电设备安装工程专业承包;

防腐保温工程专业承包;

建筑防水工程专业承包;

每位施工员工具备高处作业证、电工证,氧气焊工证,同时具备意外伤害保险单一份

拆除工程特点及针对性措施:
1
、拆除烟囱高度达120米,筒身混凝土为300号的硅酸盐水泥,结构坚固,采用人工拆除需在烟囱外围搭施工脚手架。搭设120米环形贴壁施工脚手架,如果全部采用落地式脚手架不能满足JGJ130-2001扣件式钢管脚手架的安全技术要求。人工拆除采用的工具主要为风镐,风镐通过空压机供气。从地面直接供气,难度较大。
针对性措施:
施工脚手架高度达120米,采用分段搭设,50米以下采用落地式钢管脚手架,以上分4段悬挑搭设即在50米、68米、86米、104米增设工字钢托架。
将风管外包钢管垂直固定在施工脚手架上,这样可以保证供气压力,解决人工拆除的风镐使用问题。
2
、拆除烟囱时要尽量减小粉尘的影响,人工拆除是采用风镐对烟囱自上而下粉碎性拆除,高空扬尘较大。
针对性措施:
在施工脚手架的外侧悬挂绿色2000目安全网,该安全网具有一定的强度,既可减轻粉尘的影响还可遮挡碎渣。
3
、安全隐患大,120米烟囱拆除时可分两部分,30米以上部位采用人工拆除,30米以下部分可采用机械拆除。人工拆除全部为高空作业,安全隐患大。
针对性措施:
搭(拆)脚手架必须由经安全技术教育的架子工承担,架子工持证上岗。所有参与烟囱拆除施工的人员定期进行体格检查,凡患有高血压、心脏病等不适应高空作业者,不得上脚手架作业。
脚手架搭设过程中增设避雷设施。
搭设人货升降梯并搭设相应的隔离棚。
5
级风以上天气不施工包括搭拆脚手架。
雷雨天不施工包括搭拆脚手架。
一、人工拆除方案
1
、施工顺序:
施工脚手架搭设→人货升降梯安放→人工拆除筒身并拆至30米→拆除全部施工脚手架→改用机械拆除(液压剪及镐头机配合)。

2、施工方法:
(1)搭设由地面至顶部的全封闭钢管脚手架(高出烟囱1.5米)并经验收合格后,人工开始拆除,人工拆除至地面30米改用机械拆除;
(2)人工拆除前,将通风口作为出渣口,采用小挖掘机出渣。
(3)施工人员立在脚手架上,安全带挂在钢管上后,用风镐、手锤由外向内将筒体逐块拆除,使碴块全由筒体内部落下;
(4)晚上严禁拆除作业,晚上可安排清渣,利于白天继续拆除。严禁拆除与清渣同时进行;
(5)脚手架随施工面的降低同时降低,但脚手架必须始终保持高出施工面1.5米至2米,以防止渣块飞出脚手架防护层;
(6)氧气、乙炔瓶置于作业平台上,仅气割枪在施工面上,边拆边烧断避雷天线(截断长度不大于1米)。
3
、主要施工工艺:
人工拆除120米烟囱最主要的难点就是施工脚手架的搭设,搭设120米环形贴壁施工脚手架,如果全部采用落地式脚手架不能满足JGJ130-2001扣件式钢管脚手架的安全技术要求。可采用分段搭设,50米以下采用落地式钢管脚用架,以上分4段悬挑搭设即在50米、68米、86米、104米增设工字钢托架。
3
.1搭设构造:
(1)落地式扣件钢管脚手架。
脚手架为双排脚手架,搭设高度为50米,20米以下采用双管立杆,20米以上采用单管立杆,搭设尺寸为:内外立杆中心距1.05m,立杆纵距1.6m,步距高为1.8m,离地面0.2m处设置纵向及横向扫地杆,外排立杆每0.6m和1.2m高度处分别设置纵向拦杆,立杆跨越6根设置剪刀撑,斜杆与地面夹角在45度至60度之间,脚手架外侧设置密目安全网。架体与筒身结构的连墙杆以二步二跨设置一个拉结点,拉结点采用硬拉结,各点梅花型相错布置,两端部位拉结点应当加强。

 

江苏锦峰高空工程有限公司

地址:江苏省盐城市开发区新都路26号

邮编:224001

电话:0515-88722075

传真:0515-88722075

总经理:刘 界 新

手机:183 0510 2533

 

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