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1、东门大桥墩柱施工方案第一章编制依据及原则1.1编制依据1、2 、我国现行公路、桥涵工程施工规范及质量检验评定标准； 、公路桥涵施工技术规范JTG/T F50-2011 ; 、公路施工手册桥涵（上册）； 、公路工程集料试验规程-E42-2005 ; 、公路工程质量检验评定标准-JTGF80_1-2004 ; 、钢筋焊接及验收规范-JGJ 18-2003 ;3.福建省咼速公路标标准化指南4 、现场实际情况和通过调查所掌握的有关资料信息；5 、我公司的综合实力、机械设备能力、技术力量和多年来类似工程建设所积累的 丰富施工经验。1.2编制原则1、严格遵循招标、投标文件的内容及设计文件要求，确定本工程的
2、创优规划，并 据此来编制施工方案。2、仔细考察工程实地，认真研究招标、投标文件、设计图纸和有关规定，充分考 虑本桥的特点、场地、交通、水文、运输、料源、民情、水电供应、气候等实际情况的 基础上编制。第二章工程概况2.1设计概况东门大桥横跨松溪河及204省道，省道204为水泥砼路面，路面宽为8.5米，靠近 山体一侧边沟为矩形断面，深 0.3米，底宽0.4米。松溪此处与桥梁轴线正交，交叉处 河道宽约140m，河道纵向顺直，河滩较宽，河床上主要为磨圆度较高的卵石，混杂有 砂砾，河中水流较急。桥址区处于二级水源保护区，距下游建瓯市东门水厂取水口1050米。为保证水源不受污染，在设计中采用加宽桥梁断面，
3、设置双护栏，并且加高、设置防抛网等措施来 保证即使车辆发生事故不至于坠入河中而污染水源。同时桥梁设置集中排水系统，让桥 面污水排入净化池中。通过工程钻孔和地质调绘表明，桥位区内未发现滑坡、泥石流、崩塌及地下采空区 等不良地质作用，新构造运动不强烈，两岸边坡稳定。整个桥位区处于稳定区域。东门大桥大桥跨径组合为12X 25+12X 35，桥梁全长727.6m。桥梁按正交布设；上 部结构采用25、35m跨径的装配式预应力混凝土连续 T梁；桥梁下部结构采用柱式墩， 柱式桥台，基础采用钻孔灌注桩基础。桥梁采用预制吊装的施工方法。22主要工程数量主要工程数量见下表东门大桥墩柱工程量表墩 号柱径（m墩高（m
4、砼方量（n3）钢筋（kg）备 注光圆钢筋螺纹钢筋1-11.5915.55170.551431.651-21.5915.55170.551431.651-31.54.57.6107.25877.951-41.54.57.6107.25877.952-11.514.525.27244.8752117.842-21.514.525.27244.8752117.842-31.59.516.435176.051489.42-41.59.516.435176.051489.43-11.51729.69280.652423.553-21.51729.69280.652423.553-31.512.5217.
5、35217.351869.853-41.512.5217.35217.351869.854-11.51831.455294.42539.054-21.51831.455294.42539.054-31.512.5217.35217.351869.854-41.512.5217.35217.351869.855-11.51933.22308.152671.555-21.51933.22308.152671.555-31.58.514.665162.31373.95-41.58.514.665162.31373.96-11.514.525.27244.8752117.846-21.514.525.
6、27244.8752117.846-31.5610.25129.31051.26-41.5610.25129.31051.27-11.514.525.27244.8752117.847-21.514.525.27244.8752117.847-31.58.514.665162.31373.97-41.58.514.665162.31373.98-11.515.527.035258.652233.358-21.515.527.035258.652233.358-31.58.514.665162.31373.98-41.58.514.665162.31373.99-11.515.527.03525
7、8.652233.359-21.515.527.035258.652233.359-31.58.514.665162.31373.99-41.58.514.665162.31373.910-11.514.525.27244.8752117.8410-21.514.525.27244.8752117.8410-31.57.512.9148.551241.410-41.57.512.9148.551241.411-11.512.5217.35217.351869.8511-21.512.5217.35217.351869.8511-31.57.512.9148.551241.411-41.57.5
8、12.9148.551241.412-1219.359.69421.155019.512-2219.359.69421.155019.512-3219.359.69421.155019.512-4219.359.69421.155019.513-1229.391.105607.557289.3513-2229.391.105607.557289.3513-3229.391.105607.557289.3513-4229.391.105607.557289.3514-1229.391.105607.557289.3514-2229.391.105607.557289.3514-3229.391.
9、105607.557289.3514-4229.391.105607.557289.3515-1229.892.6756157395.615-2229.892.6756157395.615-3229.892.6756157395.615-4229.892.6756157395.616-1231.397.39644.87743.316-2231.397.39644.87743.316-3231.397.39644.87743.316-4231.397.39644.87743.317-1233.3103.675606.558197.317-2233.3103.675606.558197.317-3
10、233.3103.675606.558197.317-4233.3103.675606.558197.318-1233.8105.245689.558303.5518-2233.8105.245689.558303.5518-3233.8105.245689.558303.5518-4233.8105.245689.558303.5519-1233.3103.675682.18197.319-2233.3103.675682.18197.319-3233.3103.675682.18197.319-4233.3103.675682.18197.320-1232.8102.1670.98091.
11、0520-2232.8102.1670.98091.0520-3232.8102.1670.98091.0520-4232.8102.1670.98091.0521-1229.892.6756157395.621-2229.892.6756157395.621-3229.892.6756157395.621-4229.892.6756157395.622-1219.861.26428.65125.7522-2219.861.26428.65125.7522-3219.861.26428.65125.7522-4219.861.26428.65125.7523-1216.350.265365.2
12、54324.0523-2216.350.265365.254324.0523-3216.350.265365.254324.0523-4216.350.265365.254324.05合 计6275.1636939415507.52第三章主要施工方法3.1 施工工艺对于高墩柱施工采用分节分段进行施工。只有1道墩柱间系梁的情况：我部采用分 三步施工的方法进行施工：1.施工第一节至墩间系梁底；2.施工墩间系梁；3.施工第二 节墩柱。有2道墩间系梁的情况：我部采用分五步施工的方法进行施工： 1.施工第一节 至墩间系梁底；2.施工第一道墩间系梁；3.施工第二节墩柱至第二道墩间系梁底；4.施 工第二道墩
