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1、PAGE PAGE 29 TOC o 1-3 h z u HYPERLINK l _Toc397700785 一、工程概况 PAGEREF _Toc397700785 h 2 HYPERLINK l _Toc397700786 二、编制依据 PAGEREF _Toc397700786 h 2 HYPERLINK l _Toc397700787 三、桥墩高度统计 PAGEREF _Toc397700787 h 3 HYPERLINK l _Toc397700788 四、高墩砼施工方案 PAGEREF _Toc397700788 h 13 HYPERLINK l _Toc397700789 4.1

2、脚手架的搭设 PAGEREF _Toc397700789 h 14 HYPERLINK l _Toc397700790 4.2模板 PAGEREF _Toc397700790 h 14 HYPERLINK l _Toc397700791 4.3砼浇筑 PAGEREF _Toc397700791 h 16 HYPERLINK l _Toc397700792 4.4拆模 PAGEREF _Toc397700792 h 17 HYPERLINK l _Toc397700793 4.5混凝土养生 PAGEREF _Toc397700793 h 17 HYPERLINK l _Toc397700794

3、4.6桥墩模板示意图 PAGEREF _Toc397700794 h 17 HYPERLINK l _Toc397700795 五、 危险源辨识及分析 PAGEREF _Toc397700795 h 17 HYPERLINK l _Toc397700796 5.1 高墩施工危险源类别 PAGEREF _Toc397700796 h 18 HYPERLINK l _Toc397700797 5.2高墩作业危险源防范措施 PAGEREF _Toc397700797 h 18 HYPERLINK l _Toc397700798 六、高墩施工安全保证 PAGEREF _Toc397700798 h 1

4、9 HYPERLINK l _Toc397700799 七、 高墩施工安全技术措施 PAGEREF _Toc397700799 h 25 HYPERLINK l _Toc397700800 八、 高墩施工应急预案 PAGEREF _Toc397700800 h 26高墩施工安全专项方案一、工程概况本施工段共设特大桥2座(青弋江左绕特大桥、青弋江右绕特大桥)。其中青弋江左绕特大桥2.658km(DK1+862.159DK4+520.289),青弋江右绕特大桥7.797km(YDK0+757.118YDK8+554.583)。青弋江左绕特大桥桥跨布置为81-32米简支梁;桥中心里程为DK3+187

5、.979;桥梁全长2658.13米。全桥桥墩80个,平均墩高6.25米,最大墩高10.5米;桥台一个,桥台台前里程为DK4+513.799,台后里程为DK4+520.289。桥梁基础为钻孔桩+承台;全桥钻孔桩486根,桩径为1米,最长桩长36.6米。青弋江右绕特大桥桥跨布置为1-33米现浇简支梁+80-32米简支梁+上跨宁安城际(48+80+48)米连续梁+48-32米简支梁+2-24米简支梁+9-32米简支梁+2-24米简支梁+30-32米简支梁+3-24米简支梁+1-32米简支梁+上跨芜马高速(40+64+40)米连续梁+1-32米简支梁+2-24米简支梁+22-32米简支梁+1-24米简

6、支梁+1-26米简支梁+28-32米简支梁。全桥中心里程为YDK4+655.85;桥梁全长为7797.465米。全桥桥墩236个,平均墩高12.92米,最大墩高23米。本分部施工范围内地势较为平坦开阔,局部地方略有起伏,少量低山。沿线水系发育发育,水塘较多。本分部施工区域属亚热带湿润季风气候区,气候温和,雨量丰沛,季风明显。由于受季风气候的影响,冷暖气团交锋频繁,天气多变,降水年际变化大,年内梅雨显著,夏雨集中,常有灾害气候发生。流域多年平均气温为16度,其中一月最低,平均气温23度;7月最高,平均气温为3233度。极端最高气温41.5度,极端最低气温-16.1度。年平均风速1.23.3m/s

7、,全年主导风向为华北或东北偏东风。芜湖多年平均降水量为1304.7mm;历年最大降水量1863mm;最小降水量为634.9mm;多年平均蒸发量为1637.6mm。二、编制依据中华人民共和国安全生产法(中华人民共和国主席令13号)建筑工程安全生产管理条例(国务院393号令)高速铁路桥涵工程施工技术指南铁建设【2010】241号;铁路混凝土工程施工技术指南铁建设【2010】241号;高速铁路桥涵工程施工质量验收标准TB10752-2010;铁路混凝土工程施工质量验收标准TB10424-2010;铁路工程基本作业施工安全技术规程(TB10301-2009)生产安全事故报告和调查处理条例(国务院493

8、号令)施工现场临时用电安全技术规范(JGJ46-2005)皖赣铁路扩能改造工程指导性施工组织设计;中铁二十四局集团皖赣扩能改造工程I标实施性施工组织设计;青弋江左绕特大桥、青弋江右绕特大桥相关施工图纸。本公司具备的人员、设备、技术力量、施工组织能力及创新能力;相关法律法规,国家、地方及行业规范。三、桥墩高度统计青弋江左绕特大桥桥墩号里程(m)梁长(cm)桥墩高(米)是否高低墩墩身比率图号备注002#DK1+894.899326032606是003#DK1+927.6393260326050肆桥(2011)4207-I-09004#DK1+960.379326032604.50肆桥(2011)4

9、207-I-09005#DK1+993.119326032604.50肆桥(2011)4207-I-09006#DK2+025.859326032604.50肆桥(2011)4207-I-09007#DK2+058.5993260326050肆桥(2011)4207-I-09008#DK2+091.3393260326050肆桥(2011)4207-I-09009#DK2+124.0793260326050肆桥(2011)4207-I-09010#DK2+156.8193260326040肆桥(2011)4207-I-09011#DK2+189.5593260326040肆桥(2011)420

10、7-I-09012#DK2+222.2993260326040肆桥(2011)4207-I-09013#DK2+255.039326032603.50肆桥(2011)4207-I-09014#DK2+287.779326032603.50肆桥(2011)4207-I-09015#DK2+320.519326032603.50肆桥(2011)4207-I-09016#DK2+353.259326032603.50肆桥(2011)4207-I-09017#DK2+385.999326032603.50肆桥(2011)4207-I-09018#DK2+418.739326032603.50肆桥(20

11、11)4207-I-09019#DK2+451.4843260326030肆桥(2011)4207-I-09020#DK2+484.234326032603.50肆桥(2011)4207-I-09021#DK2+516.9843260326040肆桥(2011)4207-I-09022#DK2+549.7343260326040肆桥(2011)4207-I-09023#DK2+582.4793260326040肆桥(2011)4207-I-09024#DK2+615.2193260326030肆桥(2011)4207-I-09025#DK2+647.959326032603.50肆桥(2011

12、)4207-I-09026#DK2+680.699326032604.50肆桥(2011)4207-I-09027#DK2+713.4393260326050肆桥(2011)4207-I-09028#DK2+746.1793260326040肆桥(2011)4207-I-09029#DK2+778.919326032604.50肆桥(2011)4207-I-09030#DK2+811.659326032604.50肆桥(2011)4207-I-09031#DK2+844.3993260326040肆桥(2011)4207-I-09032#DK2+877.1393260326030肆桥(2011

13、)4207-I-09033#DK2+909.8793260326030肆桥(2011)4207-I-09034#DK2+942.6193260326030肆桥(2011)4207-I-09035#DK2+975.359326032604.50肆桥(2011)4207-I-09036#DK3+008.0993260326060肆桥(2011)4207-I-09037#DK3+040.839326032605.50肆桥(2011)4207-I-09038#DK3+073.5793260326060肆桥(2011)4207-I-09039#DK3+106.319326032605.50肆桥(2011

14、)4207-I-09040#DK3+139.0593260326050肆桥(2011)4207-I-09041#DK3+171.7993260326050肆桥(2011)4207-I-09042#DK3+204.539326032605.50肆桥(2011)4207-I-09043#DK3+237.279326032603.50肆桥(2011)4207-I-09044#DK3+270.0193260326060肆桥(2011)4207-I-09045#DK3+302.759326032607.50肆桥(2011)4207-I-09046#DK3+335.4993260326080肆桥(2011

15、)4207-I-09047#DK3+368.2393260326090肆桥(2011)4207-I-09048#DK3+400.9793260326090肆桥(2011)4207-I-09049#DK3+433.719326032609.50肆桥(2011)4207-I-09050#DK3+466.459326032609.50肆桥(2011)4207-I-09051#DK3+499.199326032609.50肆桥(2011)4207-I-09052#DK3+531.939326032609.50肆桥(2011)4207-I-09053#DK3+564.679326032609.50肆桥(

16、2011)4207-I-09054#DK3+597.419326032609.50肆桥(2011)4207-I-09055#DK3+630.15932603260100肆桥(2011)4207-I-09056#DK3+662.89932603260100肆桥(2011)4207-I-09057#DK3+695.6393260326010.50肆桥(2011)4207-I-09058#DK3+728.37932603260100肆桥(2011)4207-I-09059#DK3+761.11932603260100肆桥(2011)4207-I-09060#DK3+793.8593260326010

17、0肆桥(2011)4207-I-09061#DK3+826.59932603260100肆桥(2011)4207-I-09062#DK3+859.339326032608.50肆桥(2011)4207-I-09063#DK3+892.079326032607.50肆桥(2011)4207-I-09064#DK3+924.819326032608.50肆桥(2011)4207-I-09065#DK3+957.559326032608.50肆桥(2011)4207-I-09066#DK3+990.299326032608.50肆桥(2011)4207-I-09067#DK4+023.0393260

18、32609.50肆桥(2011)4207-I-09068#DK4+055.7793260326080肆桥(2011)4207-I-09069#DK4+088.5143260326070肆桥(2011)4207-I-09070#DK4+121.244326032606.50肆桥(2011)4207-I-09071#DK4+153.9693260326060肆桥(2011)4207-I-09072#DK4+186.689326032607.50肆桥(2011)4207-I-09073#DK4+219.409326032608.50肆桥(2011)4207-I-09074#DK4+252.12432

19、60326090肆桥(2011)4207-I-09075#DK4+284.834326032607.50肆桥(2011)4207-I-09076#DK4+317.544326032607.50肆桥(2011)4207-I-09077#DK4+350.2493260326070肆桥(2011)4207-I-09078#DK4+382.949326032608.50肆桥(2011)4207-I-09079#DK4+415.649326032608.50肆桥(2011)4207-I-09080#DK4+448.349326032607.50肆桥(2011)4207-I-09081#DK4+481.0

20、493260326050肆桥(2011)4207-I-09082#DK4+513.7993260桥台青弋江右绕特大桥桥墩号里程(m)梁长(cm)桥墩高(米)是否高低墩墩身比率图号备注002#YDK0+791.570331532603.5是003#YDK0+823.088326032603.50肆桥(2011)4207-I-09004#YDK0+855.803326032603.50肆桥(2011)4207-I-09005#YDK0+888.508326032603.50肆桥(2011)4207-I-09006#YDK0+921.208326032603.50肆桥(2011)4207-I-090

21、07#YDK0+953.908326032603.50肆桥(2011)4207-I-09008#YDK0+986.608326032603.50肆桥(2011)4207-I-09009#YDK1+019.3083260326050肆桥(2011)4207-I-09010#YDK1+052.0083260326060肆桥(2011)4207-I-09011#YDK1+084.7083260326060肆桥(2011)4207-I-09012#YDK1+117.4083260326040肆桥(2011)4207-I-09013#YDK1+150.108326032604.50肆桥(2011)420

22、7-I-09014#YDK1+182.808326032604.50肆桥(2011)4207-I-09015#YDK1+215.5083260326050肆桥(2011)4207-I-09016#YDK1+248.2083260326050肆桥(2011)4207-I-09017#YDK1+280.908326032605.50肆桥(2011)4207-I-09018#YDK1+313.6083260326060肆桥(2011)4207-I-09019#YDK1+346.3133260326060肆桥(2011)4207-I-09020#YDK1+379.023326032606.50肆桥(2

23、011)4207-I-09021#YDK1+411.733326032606.50肆桥(2011)4207-I-09022#YDK1+444.4483260326070肆桥(2011)4207-I-09023#YDK1+477.168326032606.50肆桥(2011)4207-I-09024#YDK1+509.8883260326080肆桥(2011)4207-I-09025#YDK1+542.6083260326080肆桥(2011)4207-I-09026#YDK1+575.333326032608.50肆桥(2011)4207-I-09027#YDK1+608.0633260326

24、090肆桥(2011)4207-I-09028#YDK1+640.793326032609.50肆桥(2011)4207-I-09029#YDK1+673.528326032609.50肆桥(2011)4207-I-09030#YDK1+706.268326032609.50肆桥(2011)4207-I-09031#YDK1+739.0083260326010.50肆桥(2011)4207-I-09032#YDK1+771.7483260326010.50肆桥(2011)4207-I-09033#YDK1+804.48832603260110肆桥(2011)4207-I-09034#YDK1+

25、837.22832603260110肆桥(2011)4207-I-09035#YDK1+869.96832603260110肆桥(2011)4207-I-09036#YDK1+902.70832603260120肆桥(2011)4207-I-09037#YDK1+935.44832603260110肆桥(2011)4207-I-09038#YDK1+968.18832603260110肆桥(2011)4207-I-09039#YDK2+000.9283260326011.50肆桥(2011)4207-I-09040#YDK2+033.6683260326011.50肆桥(2011)4207-I

26、-09041#YDK2+066.4083260326012.50肆桥(2011)4207-I-09042#YDK2+099.1483260326012.51:45肆桥(2011)4207-I-10043#YDK2+131.88832603260141:45肆桥(2011)4207-I-10044#YDK2+164.6283260326014.51:45肆桥(2011)4207-I-10045#YDK2+197.3683260326014.51:45肆桥(2011)4207-I-10046#YDK2+230.1083260326013.51:45肆桥(2011)4207-I-10047#YDK2

27、+262.84832603260151:45肆桥(2011)4207-I-10048#YDK2+295.5883260326015.51:45肆桥(2011)4207-I-10049#YDK2+328.3283260326015.51:45肆桥(2011)4207-I-10050#YDK2+361.06832603260151:45肆桥(2011)4207-I-10051#YDK2+393.8083260326014.51:45肆桥(2011)4207-I-10052#YDK2+426.5483260326014.51:45肆桥(2011)4207-I-10053#YDK2+459.28832

28、60326014.51:45肆桥(2011)4207-I-10054#YDK2+492.02832603260151:45肆桥(2011)4207-I-10055#YDK2+524.76832603260151:45肆桥(2011)4207-I-10056#YDK2+557.5083260326017.51:45肆桥(2011)4207-I-10057#YDK2+590.24832603260161:45肆桥(2011)4207-I-10058#YDK2+622.98832603260161:45肆桥(2011)4207-I-10059#YDK2+655.72832603260161:45肆桥

29、(2011)4207-I-10060#YDK2+688.4683260326016.51:45肆桥(2011)4207-I-10061#YDK2+721.20832603260171:45肆桥(2011)4207-I-10062#YDK2+753.9483260326016.51:45肆桥(2011)4207-I-10063#YDK2+786.6883260326017.51:45肆桥(2011)4207-I-10064#YDK2+819.42832603260171:45肆桥(2011)4207-I-10065#YDK2+852.16832603260181:45肆桥(2011)4207-I

30、-10066#YDK2+884.90832603260171:45肆桥(2011)4207-I-10067#YDK2+917.64832603260181:45肆桥(2011)4207-I-10068#YDK2+950.3883260326018.51:45肆桥(2011)4207-I-10069#YDK2+983.12832603260191:45肆桥(2011)4207-I-10070#YDK3+015.8683260326019.51:45肆桥(2011)4207-I-10071#YDK3+048.60832603260201:45肆桥(2011)4207-I-10072#YDK3+08

31、1.34832603260201:45肆桥(2011)4207-I-10073#YDK3+114.0883260326021.51:45肆桥(2011)4207-I-11074#YDK3+146.82832603260221:45肆桥(2011)4207-I-11075#YDK3+179.5683260326022.51:45肆桥(2011)4207-I-11076#YDK3+212.3083260326022.51:45肆桥(2011)4207-I-11077#YDK3+245.0483260326022.51:45肆桥(2011)4207-I-11078#YDK3+277.78832603

32、260231:45肆桥(2011)4207-I-11079#YDK3+310.52832603260231:45肆桥(2011)4207-I-11080#YDK3+343.2683260326022.51:45肆桥(2011)4207-I-11081#YDK3+376.00832603260231:45肆桥(2011)4207-I-11082#YDK3+408.7483260486522连续梁083#YDK3+457.4984865800019.5连续梁084#YDK3+537.4988000486519连续梁085#YDK3+586.2484865326022连续梁086#YDK3+618.

33、9883260326022.51:45肆桥(2011)4207-I-11087#YDK3+651.72832603260221:45肆桥(2011)4207-I-11088#YDK3+684.46832603260221:45肆桥(2011)4207-I-11089#YDK3+717.2083260326021.51:45肆桥(2011)4207-I-11090#YDK3+749.9483260326021.51:45肆桥(2011)4207-I-11091#YDK3+782.68832603260211:45肆桥(2011)4207-I-11092#YDK3+815.428326032602

34、0.51:45肆桥(2011)4207-I-11093#YDK3+848.16832603260211:45肆桥(2011)4207-I-11094#YDK3+880.90832603260201:45肆桥(2011)4207-I-10095#YDK3+913.6483260326019.51:45肆桥(2011)4207-I-10096#YDK3+946.3883260326019.51:45肆桥(2011)4207-I-10097#YDK3+979.1283260326019.51:45肆桥(2011)4207-I-10098#YDK4+011.86832603260201:45肆桥(20

35、11)4207-I-10099#YDK4+044.60832603260191:45肆桥(2011)4207-I-10100#YDK4+077.34832603260191:45肆桥(2011)4207-I-10101#YDK4+110.08832603260191:45肆桥(2011)4207-I-10102#YDK4+142.8283260326018.51:45肆桥(2011)4207-I-10103#YDK4+175.5683260326018.51:45肆桥(2011)4207-I-10104#YDK4+208.3083260326018.51:45肆桥(2011)4207-I-10

36、105#YDK4+241.04832603260181:45肆桥(2011)4207-I-10106#YDK4+273.78832603260181:45肆桥(2011)4207-I-10107#YDK4+306.52832603260181:45肆桥(2011)4207-I-10108#YDK4+339.2683260326017.51:45肆桥(2011)4207-I-10109#YDK4+372.0083260326017.51:45肆桥(2011)4207-I-10110#YDK4+404.7483260326018.51:45肆桥(2011)4207-I-10111#YDK4+437

37、.4883260326019.51:45肆桥(2011)4207-I-10112#YDK4+470.22832603260181:45肆桥(2011)4207-I-10113#YDK4+502.9683260326017.51:45肆桥(2011)4207-I-10114#YDK4+535.7083260326017.51:45肆桥(2011)4207-I-10115#YDK4+568.4483260326018.51:45肆桥(2011)4207-I-10116#YDK4+601.1883260326016.51:45肆桥(2011)4207-I-10117#YDK4+633.9283260

38、3260161:45肆桥(2011)4207-I-10118#YDK4+666.6683260326015.51:45肆桥(2011)4207-I-10119#YDK4+699.40832603260151:45肆桥(2011)4207-I-10120#YDK4+732.1483260326014.51:45肆桥(2011)4207-I-10121#YDK4+764.89332603260141:45肆桥(2011)4207-I-10122#YDK4+797.64332603260141:45肆桥(2011)4207-I-10123#YDK4+830.39332603260141:45肆桥(2

39、011)4207-I-10124#YDK4+863.1433260326014.51:45肆桥(2011)4207-I-10125#YDK4+895.8933260326013.50肆桥(2011)4207-I-09126#YDK4+928.6383260326013.50肆桥(2011)4207-I-09127#YDK4+961.3783260326012.50肆桥(2011)4207-I-09128#YDK4+994.1183260326011.50肆桥(2011)4207-I-09129#YDK5+026.85832603260110肆桥(2011)4207-I-09130#YDK5+0

40、59.59832603260100肆桥(2011)4207-I-09131#YDK5+092.33832603260100肆桥(2011)4207-I-09132#YDK5+125.0783260326010.50肆桥(2011)4207-I-09133#YDK5+157.8183260246011.50肆桥(2011)4207-I-43134#YDK5+182.55324602460120肆桥(2011)4207-I-05135#YDK5+207.28824603260120肆桥(2011)4207-I-43136#YDK5+240.02832603260120肆桥(2011)4207-I-

41、09137#YDK5+272.76832603260120肆桥(2011)4207-I-09138#YDK5+305.5083260326012.50肆桥(2011)4207-I-09139#YDK5+338.2483260326012.50肆桥(2011)4207-I-09140#YDK5+370.9883260326012.50肆桥(2011)4207-I-09141#YDK5+403.72832603260130肆桥(2011)4207-I-09142#YDK5+436.4683260326012.50肆桥(2011)4207-I-09143#YDK5+469.2083260326012

42、.50肆桥(2011)4207-I-09144#YDK5+501.9483260246012.50肆桥(2011)4207-I-43145#YDK5+526.6832460246012.50肆桥(2011)4207-I-05146#YDK5+551.4182460326012.50肆桥(2011)4207-I-43147#YDK5+584.1583260326013.50肆桥(2011)4207-I-09148#YDK5+616.89832603260130肆桥(2011)4207-I-09149#YDK5+649.6383260326011.50肆桥(2011)4207-I-09150#YD

43、K5+682.3783260326010.50肆桥(2011)4207-I-09151#YDK5+715.11832603260100肆桥(2011)4207-I-09152#YDK5+747.8583260326080肆桥(2011)4207-I-09153#YDK5+780.59832603260140肆桥(2011)4207-I-09154#YDK5+813.33832603260140肆桥(2011)4207-I-09155#YDK5+846.07832603260140肆桥(2011)4207-I-09156#YDK5+878.8183260326014.50肆桥(2011)4207

44、-I-09157#YDK5+911.55832603260160肆桥(2011)4207-I-09158#YDK5+944.29832603260160肆桥(2011)4207-I-09159#YDK5+977.03832603260130肆桥(2011)4207-I-09160#YDK6+009.7783260326013.50肆桥(2011)4207-I-09161#YDK6+042.51832603260130肆桥(2011)4207-I-09162#YDK6+075.2583260326012.50肆桥(2011)4207-I-09163#YDK6+107.99832603260120

45、肆桥(2011)4207-I-09164#YDK6+140.1383260326011.50肆桥(2011)4207-I-09165#YDK6+173.478326032608.50肆桥(2011)4207-I-09166#YDK6+206.218326032608.50肆桥(2011)4207-I-09167#YDK6+238.9583260326090肆桥(2011)4207-I-09168#YDK6+271.6933260326010.50肆桥(2011)4207-I-09169#YDK6+304.42332603260130肆桥(2011)4207-I-09170#YDK6+337.1

46、533260326014.51:45肆桥(2011)4207-I-10171#YDK6+369.87832603260151:45肆桥(2011)4207-I-10172#YDK6+402.5983260326013.51:45肆桥(2011)4207-I-10173#YDK6+435.3283260326013.51:45肆桥(2011)4207-I-10174#YDK6+468.03832603260140肆桥(2011)4207-I-09175#YDK6+500.7533260326011.50肆桥(2011)4207-I-09176#YDK6+533.4633260246010.50肆

47、桥(2011)4207-I-43177#YDK6+558.1732460246010.50肆桥(2011)4207-I-05178#YDK6+582.87824602460130肆桥(2011)4207-I-05179#YDK6+607.57824603260151:45肆桥(2011)4207-I-44180#YDK6+640.2783260406015连续梁181#YDK6+680.9784060640013连续梁182#YDK6+744.9786400406013连续梁183#YDK6+785.6784060326015.5连续梁184#YDK6+818.37832602460151:4

48、5肆桥(2011)4207-I-44185#YDK6+843.07824602460151:45肆桥(2011)4207-I-06186#YDK6+867.7782460326014.51:45肆桥(2011)4207-I-44187#YDK6+900.4783260326014.51:45肆桥(2011)4207-I-10188#YDK6+933.1783260326014.51:45肆桥(2011)4207-I-10189#YDK6+965.87832603260141:45肆桥(2011)4207-I-10190#YDK6+998.5783260326013.51:45肆桥(2011)4

49、207-I-10191#YDK7+031.28332603260141:45肆桥(2011)4207-I-10192#YDK7+063.9933260326013.51:45肆桥(2011)4207-I-10193#YDK7+096.70332603260141:45肆桥(2011)4207-I-10194#YDK7+129.41332603260141:45肆桥(2011)4207-I-10195#YDK7+162.1283260326013.51:45肆桥(2011)4207-I-10196#YDK7+194.8483260326012.51:45肆桥(2011)4207-I-10197#

50、YDK7+227.5683260326012.51:45肆桥(2011)4207-I-10198#YDK7+260.28832603260121:45肆桥(2011)4207-I-10199#YDK7+293.0133260326011.51:45肆桥(2011)4207-I-10200#YDK7+325.7433260326010.50肆桥(2011)4207-I-09201#YDK7+358.47332603260100肆桥(2011)4207-I-09202#YDK7+391.20332603260110肆桥(2011)4207-I-09203#YDK7+423.938326032601

51、2.50肆桥(2011)4207-I-09204#YDK7+456.6783260326070肆桥(2011)4207-I-09205#YDK7+489.418326032607.50肆桥(2011)4207-I-09206#YDK7+522.158326032607.50肆桥(2011)4207-I-09207#YDK7+554.8983260326080肆桥(2011)4207-I-09208#YDK7+587.6333260246080肆桥(2011)4207-I-43209#YDK7+612.35824602551.580210#YDK7+637.9782551.5326080211#

52、YDK7+670.71332603260100肆桥(2011)4207-I-09212#YDK7+703.4533260326010.50肆桥(2011)4207-I-09213#YDK7+736.193326032609.50肆桥(2011)4207-I-09214#YDK7+768.933326032609.50肆桥(2011)4207-I-09215#YDK7+801.6733260326090肆桥(2011)4207-I-09216#YDK7+834.41332603260100肆桥(2011)4207-I-09217#YDK7+867.1533260326080肆桥(2011)420

53、7-I-09218#YDK7+899.893326032609.50肆桥(2011)4207-I-09219#YDK7+932.6333260326080肆桥(2011)4207-I-09220#YDK7+965.373326032607.50肆桥(2011)4207-I-09221#YDK7+998.1133260326070肆桥(2011)4207-I-09222#YDK8+030.8533260326070肆桥(2011)4207-I-09223#YDK8+063.593326032605.50肆桥(2011)4207-I-09224#YDK8+096.333326032606.50肆桥

54、(2011)4207-I-09225#YDK8+129.0733260326070肆桥(2011)4207-I-09226#YDK8+161.813326032606.50肆桥(2011)4207-I-09227#YDK8+194.553326032606.50肆桥(2011)4207-I-09228#YDK8+227.2933260326090肆桥(2011)4207-I-09229#YDK8+260.033326032606.50肆桥(2011)4207-I-09230#YDK8+292.773326032606.50肆桥(2011)4207-I-09231#YDK8+325.508326

55、032606.50肆桥(2011)4207-I-09232#YDK8+358.238326032606.50肆桥(2011)4207-I-09233#YDK8+390.9683260326060肆桥(2011)4207-I-09234#YDK8+423.6983260326060肆桥(2011)4207-I-09235#YDK8+456.4233260326060肆桥(2011)4207-I-09236#YDK8+489.1433260326050肆桥(2011)4207-I-09237#YDK8+521.863326032605.50肆桥(2011)4207-I-09四、高墩砼施工方案施工工

56、艺:平整场地原材料进场施工放样脚手架搭设凿毛承台与墩柱连接处混凝土复查墩柱尺寸位置绑扎钢筋立墩柱第一层模板(着重检查模板平面位置、)尺寸、垂直度、加固和钢筋绑扎、保护层)灌注墩柱混凝土凿毛绑扎钢筋立墩柱第二层模板灌注墩柱混凝土拆第一层模板、养生凿毛绑扎钢筋立墩柱第三层模板灌注墩柱混凝土拆第二层模板、养生拆模养生施工准备搭设脚手架钢筋安装安装模板检查钢筋模板调整浇注砼砼养护焊接主筋拆模修整墩面、模型翻模砼拌制模板加工钢筋加工合格不合格4.1脚手架的搭设高墩施工时,必须搭设外部施工支架以满足施工需要。(详细方案见单独编制的脚手架施工方案)4.2模板 a、墩身主要有三大类型,比率为0的桥墩、比率为1

57、:45、以及连续梁桥墩三种类型。模板设计图纸有肆桥(2011)4207-I-05、肆桥(2011)4207-I-06、肆桥(2011)4207-I-09、肆桥(2011)4207-I-10、肆桥(2011)4207-I-11、肆桥(2011)4207-I-43、肆桥(2011)4207-I-44,以及(48+80+48)米连续梁、(40+64+40)米连续梁中墩和边墩图纸。采用定型钢模。模板采用分节、分块拼装。0.45至4米一节,桥墩外型两侧半圆段单独成块,与顺桥向前后直线段模板拼装成型。模板主要结构为钢面板、背楞槽钢、对拉螺栓、斜拉螺杆等。b、模板加工:除调节块外,每块模板的面积2m2,每块

58、模板重量大于1.5t,模板刚度及强度经验算满足施工要求,模板内金属连接件或锚固件的拆除不损伤混凝土,模板加工尺寸,长、高偏差0 -1mm,肋高偏差5mm,面板端偏斜0.5mm,连接杆件孔眼偏差0.6mm,板面局部不平1mm,板面与板侧挠度1mm。 c、模板安装:施工前对施工人员进行技术交底,使施工人员熟悉和掌握钢模板的施工与操作技术。钢模板的布置与施工操作程序均应按照模板的施工设计及技术措施的规定进行。模板在运至施工现场前,在厂内进行预拼装,对各部位几何尺寸、平整度作严格检查,正确无误后方可运至施工现场进行立模,每次安装前将模板表面及接缝处清理干净,用脱模剂或脱模油涂抹均匀。模板用汽车吊提升与

59、安装。在起吊模板前,要根据编号,按拼装先后顺序把模板运到墩下。吊装模板应由专人指挥,防止模板在起吊过程中晃动过大与墩身或脚手架碰撞,同时严禁墩下站人,以确保安全。安装模板时,至少要有两名模板工,在模板起吊到安装高度时,用特制的钢筋拉勾把模板拉向墩身,工人分站模板两侧,用手扶持钢模与持力模板联接,固定好对拉螺杆。如此反复循环至到安装好一层模板后,再安装下一层模板。整体拼装再穿上对拉杆,调整校正后浇注砼。重复以上步骤,直至墩顶。 d、模板校正:模板安装好后,对其轴线位置、水平标高,各部分尺寸、垂直度进行检校,直到符合设计及规范要求。高墩施工最主要的是垂直度的控制,本工程利用垂球吊垂线及竖直度检测尺

60、来控制竖直度,通过模板间的拉杆和连接螺栓来实现结构断面尺寸调整。模板整体的校正通过模板顶端的揽风绳来控制。最后再用全站仪与水平仪复核模板的坐标及高程e、当混凝土强度达到1015MPa后方可在混凝土上立模。模板检查允许偏差和检验方法序号项目允许偏差(mm)检验方法1前后、左右距中心线尺寸10测量检查每边不少于2处2表面平整度31m靠尺检查不少于5处3相邻模板错台1尺量检查不少于5处4同一梁端两垫石高差2测量检查5墩台支撑垫石顶面高程0,-56预埋件和预留孔位置4.3砼浇筑 砼运输:采用罐车运输,混凝土泵车泵送入模,通过串筒导入。 砼施工应注意以下几点: a、对进场(砂、碎石、水泥等)原材料进行严

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