跨孟姜女河专项施工方案.doc

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基坑开挖安全防护·································5
基坑施工的其它安全防护
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墩柱施工安全防护措施································7
脚手架安全防护措施·······························7
墩柱模板施工安全措施·····························9
高空作业安全防护措施····························11
连续梁施工安全防护措施·····························12
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挂篮施工的其它安全防护··························14
石武客专河南段项目部四分部
跨孟姜女河连续梁专项安全施工方案
1 编制说明
为预防连续梁施工现场意外事故的发生,保证连续梁施工安全,特编制此专项施工方案,以指导现场安全施工。
2 编制依据
《客运专线铁路桥涵工程施工质量验收暂行标准》
《客运专线铁路桥涵工程施工技术指南》
《铁路混凝土工程施工质量验收补充标准》
《石武客专施工图设计文件》
3 适用范围
本方案适用于中铁十九局集团有限公司石武客专河南段项目部四分部史凹跨济东高速公路特大桥的跨孟姜女河连续梁部分,具体墩号为42#至45#。
4 工程概况
设计概况
四分部史凹跨济东高速公路特大桥的跨孟姜女河连续梁部分起讫里程分别为DK594+~DK594+,为预应力现浇连续梁。
承台都为矩形两层台,其中42#、45#××,××;43#、44#主墩承台尺寸为1
××3m,××2m。
42#~45#、、、。43#、44#两个主墩的承台基坑采用四周打拉森钢板桩进行防护的方式,而42#、45#两个主墩的承台基坑则采用平行路线方向的两边打槽钢,另外两边放坡进行防护的方式。
墩柱采用双线圆端型桥墩,~,全部属高空作业。桥墩采用搭设脚手架进行施工。
梁体为单箱单室、斜腹板、变高度、变截面结构。,~。,计算跨度为(32+48+32)m,,,,,梁底下缘按二次抛物线变化,。采用悬臂挂篮施工的方法。
工程地质情况
根据铁道第三勘察设计院集团有限公司施工图所示,连续梁地处地震烈度为VIII度,。
5 确定安全措施
连续梁