白马河惠河连续梁专项方案.doc

目 录
1.编制阐明 1
1.1.编制根据 1
1.2.编制原则 1
2.工程概况 2
2.1.设计阐明 2
2.2.持续箱梁构造形式 3
2.3.支座布置 4
2.4.重要工程量表(双桥全幅总工程数量) 4
3.总体施工安排及工艺流程图 5
4.工程管理组织机构设立 8
5.施工队伍设立 9
6. 本工程所用重要机械设备及物资 10
6.1 重要机械设备 10
6.2 重要测试设备表 11
6.3 重要周转材料表 12
7.重要施工方案及施工工艺 13
7.1 施工环节 13
7.2 0#块施工 16
7.2.1 暂时固结支墩施工 16
7.2.2支座垫石及支座安装 18
7.2.3 支撑体系 19
7.2.4 模板支撑架安装 22
7.2.5 支架预压 22
7.2.6 模板施工 24
7.2.7 钢筋施工 24
7.2.8混凝土浇筑 25
7.2.9 0#块落架 26
7.3 箱梁悬浇段施工 27
7.3.1挂篮构成 27
7.3.2挂篮安装 27
7.3.3 悬浇挂篮预压 35
7.3.4 钢筋加工 38
7.3.5梁段砼浇筑 38
7.3.6 预应力筋张拉 39
7.3.7孔道压浆 40
7.3.8 挂篮施工注意事项 40
7.3.9 挂篮拆除 42
7.3.10挂篮前移 45
7.4边跨现浇段施工 46
7.4.1 地基解决 46
7.4.2 支架布置 46

7.4.3 钢筋、模板以及砼浇筑 47
7.5合拢段施工 48
7.5.1合拢段及体系转换顺序 48
7.5.2合拢段暂时锁定 48
7.5.3合拢段施工要点 49
7.5.4钢筋、模板以及砼浇筑 50
7.5.5 通长束留孔、穿索、张拉、压浆 50
7.6 桥面施工 52
7.6.1、高程及平整度控制  53
7.7 现场施工控制 53
8、施工重要办法 55
8.1安全防护办法 55
8.2质量保证办法 56
8.3季节施工质量保证办法 58
8.4 线形控制技术办法 69
8.5工期保证办法 69
8.6安全文明保证办法 70
8.7环保办法 71
8.8重要安全管理办法 72
8.8.1.消防安全管理办法 72
8.8.2.高空坠落防止办法 75
8.8.3.现场漏电防止办法 76
8.8.4.夜间施工安全防范办法 80
8.8.5．张拉压浆安全管理办法 83
8.8.6通行安全防护办法： 84
8.9突发事件应急救援预案 85
8.9.1.突发事件应急救援管理组织机构 85
8.9.2.应急断电和混凝土供应 85
8.9.3.突发事件应急救援培训制度 86
8.9.4.寻常检查和演习 86
8.9.5.救援物资准备 87
8.9.6.伤亡事故 87

附件1、0#块支架计算书
附件2、边跨支架计算书
附件3、挂篮施工设计计算书

白马河大桥、惠河大桥（35+55+35）m 持续梁专项施工方案

1.编制阐明
1.1.编制根据
1.1.1.山东省交通规划设计院编制两阶段施工图设计及有关配套图纸；
1.1.2.中铁二十三局编制《济鱼高速公路LQSG-5标段实行性施工组织设计》。
1.1.3.现场踏勘调查所获得工程地质、水文地质、本地资源、交通状况及施工环境等调查资料。

1.1.4.交通部现行各种技术规范、验收原则。
1.1.5.国家现行其她关于法律、法规。
1.1.6.业主、总监办及驻地办对本工程安全、质量、工期规定。
1.2.编制原则
1.2.1.严格按照业主提出工期规定，科学安排施工进度、作业程序，认真组织劳动力，采用平行和交叉作业施工办法，控制施工进度，保证施工工期。
1.2.2.合理配备生产资源，采用先进技术装备，做好机具选型配套，提高施工机械化水平，实行原则化作业，减少工程成本支出。
1.2.3.采用成熟施工技术和先进施工工艺。
2.工程概况
2.1.设计阐明
2.1.1.白马河大桥为规划五级航道，跨越白马河主跨上部采用（35+55+35）m悬浇箱梁，主跨桥墩采用薄壁墩。该持续梁为预应力混凝土持续箱梁，采用悬臂法施工。与白马河相交88°。
该桥主墩基本均由6根φ1.8m钻孔桩构成，桩长53m；承台为12m×7.5m×2.5 m；主墩均为圆端形薄壁墩。边墩基本由4根φ1.5m钻孔桩构成，桩长45m，承台尺寸10m×6.25m×2m；边墩均为矩形薄壁墩。
主线方向白马河大小桩号堤坝均为土路，水深2.2～4.0米。
桥台采用肋式台，桥台处使用D80伸缩缝，分联墩、共用墩处使用D80或D160伸缩缝，大小桩号桥台均设立搭板，小里程侧长12米，大里程侧长10米。
引桥25m小箱梁均采用圆板式橡胶支座，联端采用GYZ350×66mm、GYZF4250×65mm滑板支座；主跨悬浇箱梁采用盆式支座。
桥梁内、外侧均采用SA级防撞护栏，宽0.5m。
2.1.2.惠河大桥为规划五级航道，跨越惠河主跨上部采用（35+55+35）m悬浇箱梁，主跨桥墩采用薄壁墩。该持续梁为预应力混凝土持续箱梁，采用悬臂法施工。与惠河相交78°。
该桥主墩基本均由6根φ1.8m钻孔桩构成，桩长52m；承台为12m×7.5m×2.5 m；主墩均为圆端形薄壁墩。边墩基本由4根φ1.5m钻孔桩构成，桩长52m，承台尺寸10m×6.25m×2m；边墩均为矩形薄壁墩。
主线方向白马河大小桩号堤坝均为土路，水深2.2～4.0米。
桥台采用肋式台，桥台处使用D80伸缩缝，分联墩、共用墩处使用D80或D160伸缩缝，大小桩号桥台均设立搭板，长度均为10米。
引桥35m小箱梁均采用圆板式橡胶支座，联端采用GYZ425×88mm、GYZF4300×76mm滑板支座；主跨悬浇箱梁采用盆式支座。
桥梁内、外侧均采用SA级防撞护栏，宽0.5m。
2.2.持续箱梁构造形式
由于白马河大桥和惠河大桥悬灌梁构造同样，如下方案两座桥均合用。
梁体为单箱单室、变高度、变截面构造。箱梁顶宽13.25m，底宽7.25m。顶板厚度30～85cm；底板厚度30～110cm，按直线线性变化；腹板厚50～80cm，按折线变化。底板、腹板、顶板局部向内侧加厚全联在端支点、中跨跨中及中支点处共设5个横隔板，横隔板设有孔洞，供检查人员通过。
本联箱梁全长125m，计算跨度为（34.92+55+34.92）m，中支点处截面中心线处梁高3.8m，跨中直线段及边跨直线段截面中心处梁高2m，梁底下缘按二次抛物线变化。箱梁顶面从中心线向两边6.625m范畴内呈三角形坡度，坡度为2%。
全梁采用悬臂浇筑法施工，边跨梁长35m，分为8个梁段，中跨梁长55m，分为12个梁段，4主墩顶各设一节0#梁段，全梁共30个梁段。
梁段内设立了纵、横、竖三向预应力筋体系，纵向、横向预应力体系采用fpk=1860MPa，弹性模量为Ep=195GPa，公称直径为15.2mm高强度、低松弛，钢绞线，符合GB/T5224国标；竖向预应力采用fpk=930MPa，弹性模量为Ep=200GPa预应力混凝土用螺纹钢筋。管道形成采用塑料波纹管，锚具应符合《预应力锚具、夹具和连接器》（GB/T14370-）。
2.3.支座布置
支座安装时支座下板摆十字线与支承垫石十字线重叠，支座上板安装时需要设立纵向预偏量。支座采用盆式橡胶支座。
1
2
3
4
1
2
5
6
1-GPZ(Ⅱ)4SX(双向活动支座) 4- GPZ(Ⅱ)GD(固定支座)
2-GPZ(Ⅱ)4DX(单向活动支座) 5- GPZ(Ⅱ)12.5SX(双向活动支座)
3-GPZ(Ⅱ)12.5DX(单向活动支座) 6- GPZ(Ⅱ)12.5DX(单向活动支座)

2.4.重要工程量表(双桥全幅总工程数量)
序号
工程项目
阐明
单位
数量
1
C50混凝土
梁体
m³
6262.1
2
φS15.2钢绞线
fpk=1860MPa
t
179
3
JL32精轧螺纹钢
全梁
t
45.2
4
YM15-19锚具

套
400
5
YM15-22锚具

套
48
6
BM15-3锚具
横向束张拉端
套
1008
7
BMP15-3锚具
横向束固定端
套
1008
8
YGM-32锚具
竖向束
套
2080
9
SBG-100Y塑料波纹管
纵向束
m
1514
10
SBG-55B塑料波纹管
横向束
m
12166.6
11
SBG-50Y/57Y塑料波纹管
竖向束
m
6478.12
12
HRB400钢筋
梁体
t
2085.42
13
Q235钢板

t
37.6
14
盆式橡胶
支座
4000KN
单向/双向
套
8/8
15

12500KN
固定/单向
套
4/4
16

12500KN
单向/双向
套
4/4
17
梁端伸缩缝
伸缩量160mm
m/道
102.8/4
3.总体施工安排及工艺流程图
白马河大桥持续梁工程筹划于11月25日开工，依照最短需要工期，梁部合拢时间为5月15日，总工期170天，主体施工工期155天。
惠河大桥持续梁工程筹划于11月10日开工，依照最短需要工期，梁部合拢时间为4月30日，总工期170天，主体施工工期155天。

白马河大桥主桥施工进度安排
序号
项目名称
筹划开工时间
筹划竣工时间
备注
3
0#块
/11/25
/12/15

4
流水段（6段）
/12/16
/03/28

5
边跨合拢
/03/29
/04/13

6
中跨合拢
/04/14
/05/15

7
转换体系，移除挂蓝
/05/16
/05/30

惠河大桥主桥施工进度安排
序号
项目名称
筹划开工时间
筹划竣工时间
备注
3
0#块
/11/10
/11/30

4
流水段（10段）
/12/1
/03/28

5
边跨合拢
/03/29
/04/13

6
中跨合拢
/04/14
/04/30

7
转换体系，移除挂蓝
/5/1
/5/15

总体工艺流程图
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