贵南路冬期施工组织设计

西宁市贵南路（桥）市政工程 冬季施工专项方案

目 录

一、编制依据 ····························································································································· 1

1.1编制依据 ······················································································································ 1 二、工程概况 ····························································································································· 2

2.1总体工程概况 ··············································································································· 2 2.2冬季施工工程概况 ······································································································· 3 三、冬季施工组织 ····················································································································· 5 3.1冬施项目组织管理及人员配置计划············································································· 5

3.2 施工作业队及劳动力组织 ··························································································· 9 3.3冬季物资准备情况 ······································································································· 9 四、冬季施工安排 ··················································································································· 11

4.1冬季施工的一般规定 ································································································· 11 4.2冬季施工作业内容： ································································································· 11 4.3冬季施工作业内容施工时间安排 ·············································································· 11 4.4工程准备情况 ············································································································· 12 五、冬季施工方案 ··················································································································· 13

5.1钢筋工程 ···················································································································· 13 5.2 3号桩基、承台、墩柱混凝土冬季施工方案 ··························································· 14 5.3冬季砼养护温度应急措施 ·························································································· 15 5.4 河道满堂支架膺架螺旋管临时支墩体系施工 ·························································· 15 5.5大体积混凝土冬期施工要求 ······················································································ 18 5.6冬季河道螺旋支墩施工方案 ······················································································ 19 5.7冬季排水管道施工方案 ······························································································ 22 5.8搅拌站冬季施工保温措施 ·························································································· 23 5.9 冬季施工混凝土搅拌站的要求 ················································································· 24 5.10冬季施工测温规定和要求 ························································································ 26 5.11 项目部测温管理 ······································································································ 27 六、冬季施工质量管理 ············································································································ 29

6.1质量管理体系 ············································································································· 29 6.2质量保证措施 ············································································································· 29 6.3施工保证措施 ············································································································· 30 七、冬季施工安全管理 ············································································································ 31

7.1项目安全管理目标及管理机构 ·················································································· 31 7.2冬季施工管理 ············································································································· 31

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西宁市贵南路（桥）市政工程 冬季施工专项方案

一、编制依据

1.1编制依据:

(1)《西宁市贵南路（桥）施工图纸》；

(2)《公路桥涵施工技术规范》（JTJ F80—2008）； (3)《建筑工程冬期施工规程》（JGJ/T 104—2011）； (4) 冬期施工手册 中国建筑工业出版社

(5) 西宁市建设工程质量站文件宁质监（2012）026号文件《关于建设工程冬期施工的通知》

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西宁市贵南路（桥）市政工程 冬季施工专项方案

二、工程概况

2.1总体工程概况：

西宁市贵南路（桥）工程位于西宁市城东区，南起八一路，北至朱家庄，起始点桩号K0+000—K1+391.308，道路全长1391.308米，为城市次干道，其中桥长135.21米，规划宽度26米（车行道16米+人行道235米），主要建设内容有：道路、桥梁、排水、照明、绿化、交通及附属设施等。

1、桥梁工程：贵南桥设计起点桩号为：K0+071.37，终点桩号为：K0+206.58，总长135.21米，横断面布置为5米（人行道）+16米（行车道）+5米（人行道），桥宽26米。桥梁采用（22+18+35+35+18）米的变截面预应力混凝土连续梁。箱梁采用预应力混凝土现浇连续箱梁，单箱五室断面，梁高1.7米—2.4米，边腹板为弧形。桥梁下部桥墩采用顺河道布置，每一支承点处为3根直径为1.5米圆柱墩。3号墩柱端部扩大直径1.8米，桩与墩之间设置2.0米和2.5米厚的承台，尺寸6.5*2米，承台下设2根1.5米的桩，横桥向承台由系梁连接成“王”字型。桥台采用钢筋混凝土柱式桥台，台后接路基。基础均采用直径为1.5米的钻孔灌注桩。

箱涵及U型槽：因下穿兰西铁路和付东路，设置箱涵2座，一是下穿兰青铁路，桩号K0+925.324—K0+951.039，全长25.715米；一是下穿付东路公路箱涵，桩号K1+008.354—K1+063.358，全长55.00米。箱涵横断面净宽17米，顶板厚1.1米，侧墙厚1.2米，底板厚1.3米，现浇钢筋砼结构。在两个箱涵的进出口处均设置U型槽，U型槽起点桩号为K0+800.00，终点桩号为：K1+225.00（其中K0+925.73—K0+951.40为下穿铁路箱涵段）总长399.33米。U型槽断面净宽17米，侧墙、底板均厚0.8米，现浇钢筋砼结构。根据道路横断面，U型槽分为A、B、C、D四类。

2、道路工程：贵南路南起八一路与贵南路交叉路口，北至付东路北侧400米。设置主线一条，四条辅道。主线路面宽度：16米车行道+2*5米人行道=26米；A、B、C、D辅道宽度12米—22米不等。

3、排水工程：贵南路雨、污水工程，全线共设一条主线，A、B、C、D四条辅道。雨水管道共分为A、A1、B、C、D五段。其中主线A、A1由南向北排入湟水河，辅道B、C、D三段由北向南排入沙塘川河内。雨、污管道设计管径d500mm—d800mm。污水管道：污水管道设计起点位于兰西高速路南侧，污水由北向南排放，终点接入

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西宁市贵南路（桥）市政工程 冬季施工专项方案

滨河路已设计d800cm污水干管，设计管径d400mm,设计管道长度458.40m。设计污水管道位于设计道路中线西侧9.5米处。雨、污管材均采用Ⅰ、Ⅱ级抗硫酸盐水泥砼管，基础均采用120°和180°混凝土基础。

2.2冬季施工工程概况：

2.2.1、桥梁工程：

3号桩基6根，桩基直径150cm，设计长度34米；3号承台1个，长度18.5米，宽度6.5，高度2.5米，“王”字型结构；3号墩柱3根，直径150cm，顶端1.5米渐变为扩大直径为2.0米。混凝土强度等级采用C35抗硫混凝土。

2.2.2、桥梁跨湟水河河道膺架体系施工：

（1）河道围堰施工：因3号墩在现状河道中央、跨湟水河河道膺架螺旋管支墩施工需要进行河道围堰，按照项目部编制的河道施工方案，河道围堰需进行两阶段施工，第一阶段在北岸设置围堰，将水引入南侧，进行3号桩基、承台、墩柱和河道条形扩大基础和螺旋管支墩施工，第二阶段设置围堰在南岸，将水引入北岸，进行南侧河道条形扩大基础和螺旋管支墩施工。 （2）条形扩大基础及螺旋管支墩施工

根据施工方案，河道内共设置8道临时墩，第一阶段围堰，进行4—8号条形扩大基础及螺旋管支墩的施工；第二阶段围堰，进行1—3号条形扩大基础及螺旋管支墩的施工。

（3）工字钢横梁、贝雷架组装、安装。 2.2.3、排水管道施工： （1）雨水管道：

污水管道施工YA29—YA33四个井段，施工长度147.7米，接入现状湟水河河道内。管道采用D1000mmⅡ级抗硫酸盐钢筋砼承插口管。基础采用120°混凝土基础。

（2）污水管道：

污水管道施工W11—W14三段，施工长度137米，接入现状污水管道。污水管道采用D500mm管道Ⅰ抗硫酸盐钢筋砼承插口管。基础采用120°和180°混凝土基础。

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西宁市贵南路（桥）市政工程 冬季施工专项方案

（3）雨、污检查井：

雨、污水检查井采用圆形混凝土（盖板式）、矩形混凝土现浇，基础采用砼基础。

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