榆次ⅳ场灯桥施工技术方案 16页

榆次Ⅳ场灯桥施工技术方案一、工程概况榆次Ⅳ场灯桥共3组，均为单跨跨越Ⅳ场8股道，立柱分别位于Ⅰ-2道间和9道外，立柱高度均为15米，梁顶结构上沿距基础面18米，建造结构为桁架钢，横梁均由5节组成。二、总体方案：因Ⅳ场线路及接触网开通前其场地为铺架基地，不具备施工条件，故将灯桥安装安排在接触网开通后进行。Ⅳ场接触网为8股道软横跨结构，在1#和3#灯桥处软横跨跨距小于灯桥横梁长度。灯桥序号位置（里程）横梁跨度（m）横梁总长（m）软横跨跨距（m）1#灯桥K208+13048.9554.9534.52#灯桥K208+43045.5551.55543#灯桥K208+84045.451.444.3areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 1#灯桥现场情况：2#灯桥现场情况：3#灯桥现场情况：areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 根据榆次IV场的实际状况，为了保证灯桥起吊不受接触网影响并减轻单次起吊重量，特与路局商定：在每组灯桥7、6道间居中浇制钢柱基础，加设格构式钢柱作为架梁时的支撑支柱，整组灯桥分两次架设，支撑钢柱在灯桥架设完毕且焊接完成后拆除。示意如下图（以2#灯桥为例）：三、中间支柱过渡方案：在6、7道间浇筑临时基础，安装临时支撑钢柱，如下图：areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 因6、7道间线间距仅有5m，故设定支柱宽度为600mm，居中安装后限界≥2.15m。过渡支柱组立后6、7道停止接发超限列车，直至拆除。顺线路方向垂直线路方向临时支柱必须便于架梁后灯桥弛度调整及支柱拆除，过渡钢柱顶部设一个1200*600mm（钢板采用厚度为10mm）施工平台，施工平台钢板上固定一个1300*250mm托梁，托梁与支柱采用螺栓固定，同时在施工平台上固定两台小型10T千斤顶，配合调整灯桥主梁的高度及驰度，托梁事先安装在过渡钢柱上。顺线路方向垂直线路方向areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 横梁调整并焊接完成后，先拆除千斤顶，然后拆除托梁，最后利用安装列车拆除临时钢柱，6、7道恢复接发超限列车。四、灯桥进场方案：1、运梁方案：灯桥主梁构件占用榆次站修所站台组装并调整好弛度，按计划拆成2节，分别装载安装列车运进现场，以最大构件1#灯桥Ⅰ~6道部分为例，灯桥长34.4米，重6.2吨。首先租用换长1.3型平车3辆，装载时在中间平车上采用两个支点，两支点间距12m，支点垫木高度500mm。两个支点处采用钢丝绳加手板葫芦打v型拉线将横梁固定牢固，两端平车上悬空不固定，以便适应曲线及道岔处运行要求。装载高度不大于4.5米。梁车运行时应运行平稳，不得急起急停，通过曲线及铁路道岔时限速20Km/h。2、梁车通过曲线核算：设定：换长1.3+1.3+1.3计3辆平车装载设定最小曲线半径：R=200m1.3平车总长：14.0m灯桥最大构件长：34.4m（按35m计算）areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 灯桥构件半宽度：L1=0.6m平车半宽度：L=1.5m装载方式如下图所示：计算：（1）R=200m情况下相邻两平车水平夹角：α=360°×14.0m÷(3.14×2×200)m=4.013°（2）R=200m情况下灯桥端部偏心值：L偏=tan4.013°×10.5m=0.75m（3）R=200m情况下平车装载余量：L余=L-L1-L偏=1.5m-0.6m–0.75m=0.15m（4）核算结果：采用换长1.3+1.3+1.3计3辆平车装载灯桥最大构件后，通过极限R=200m曲线半径线路时，灯桥端部边沿位于平车边沿内侧0.15m，故满足运送要求。3、梁车通过变坡点核算：运输线路最大变坡率3.5‰最大构件支点距梁端11.5mareasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 支点高度L=0.5m梁端下沿低于支点高度差l=0.17m梁端最大对地距离变化值l变=11.5m×3.5‰=0.04m梁端下沿对平车最小距离l最小=L-l-l变=0.29m核算结果：梁端下沿对平车最小距离0.29m，故满足变坡率3.5‰线路运输要求。五、构件吊装方案：1、汽车吊装载：灯桥主梁吊装时因安装列车16t轨道吊吨位不够，需采用25t汽车吊装载到安装列车平板车上运抵现场后起吊作业。利用榆次站榆次西场货物站台将汽车吊开上平板车，按照装载规定将汽车档位打到起步档，在靠紧汽车吊前、后轮前后放置三角型挡木并钉固，前、后轮分别利用钢丝绳和手搬葫芦配合打V型拉线，将汽车吊牢固的固定在平板车上。浦沅25吨汽车吊外型尺寸：长13米*宽2.5米*高3.5米，自重29吨，该车在平车上装载高度为4.7米，不超限；装载后吊车重心≤3米。车辆装载固定时向榆次站有关专业人员征求意见，现场检查并确认安全。安装列车装载25吨汽车吊运行时应运行平稳，不得急起急停，通过铁路道岔时限速20Km/h。2、吊机及构件相关参数：1#灯桥各构件构件吊装参数：构件名称柱高/横梁长度（mm）重量（T）吊臂就位高度吊机选择立柱150003.8/单柱19.6米安装列车16吨轨道吊过渡钢柱147601.119.6米areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 安装列车16吨轨道吊横梁第一节10426.71.8820米安列装载25吨吊机1台横梁第二节120002.16横梁第三节120002.16横梁第四节120002.16横梁第五节8523.31.542#灯桥各构件构件吊装参数：构件名称柱高/横梁长度（mm）重量（T）就位高度备注立柱150003.8/单柱19.6米安装列车16吨轨道吊过渡钢柱147601.119.6米安装列车16吨轨道吊横梁第一节90001.6220米安列装载25吨吊机1台横梁第二节120002.16横梁第三节120002.16横梁第四节95501.72横梁第五节90001.623#灯桥各构件构件吊装参数：构件名称柱高/横梁长度（mm）重量（T）就位高度备注立柱150003.8/单柱19.6米安装列车16吨轨道吊过渡钢柱147601.119.6米安装列车16吨轨道吊横梁第一节90001.6220米安列装载25吨吊机1台横梁第二节120002.16横梁第三节120002.16横梁第四节94001.69areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 横梁第五节90001.62受力计算及机索具的选择：设备吊装过程的受力，按主辅吊车最大为计算依据吊车载荷：G=（G1+G2）K取安全系数:5破断拉力:PP=3.5*5=17.5T钢丝绳取一弯两股,据钢丝绳性能P钢丝绳取一弯两股,据钢丝性能选取:φ2025吨汽车起重机起重性能表（主臂）：工作半径(m)吊臂长度(m)10.213.7517.320.8524.427.9531.532517.5     3.520.617.512.29.5   41817.512.29.5   4.516.315.312.29.57.5  514.514.412.29.57.5  5.513.513.212.29.57.57 612.312.211.39.27.575.16.511.21110.58.87.575.1710.2109.88.57.275.17.59.49.29.18.16.86.75.188.68.48.47.86.66.45.18.587.97.87.46.37.259 7.276.866.14.810 65.85.65.65.34.412 44.14.14.23.93.714  2.933.12.9316   2.22.32.22.318   1.61.81.71.720    1.31.31.322    10.9124     0.70.826     0.50.528      0.429      0.330       (注:本表内红字及红字以上栏目的数字为吊臂强度所决定,其下面栏目数字为倾翻力矩决定)25吨汽车起重机起重性能表（副臂）：主臂主角7.5副臂areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 副臂倾角5度副臂倾角30度80度2.51.2575度2.51.2570度2.051.1565度1.751.160度1.551.0555度1.31.050度1.050.83、灯桥吊装技术方案：构件名称1~6道部分长度（m）/重量（T）7~9道部分长度（m）/重量（T）1#灯桥34.4/6.220.5/3.72#灯桥33/5.9418.5/3.343#灯桥33/5.9418.4/3.3（1）1#灯桥1~6道部分吊车对位及支腿：软横跨障碍位置运梁车及吊车停车作业位置见下图，吊车位置与起吊位置（梁车上灯桥中心）和灯桥就位位置顺线路方向距离基本相等，为5.0米。吊机位置吊装就位位置5.0m5.0m8.8m17.2m起吊位置吊装场地进行平整，整理垫木以便吊车在地面打好支腿，采用加工钢质整体垫体方式，从安列卸车后直接支腿，简化现场作业。吊装参数核算：最大距离：吊机重心≤3.0m,就位时横线路距离≤3.25m，就位时顺线路距离≤6.5m，吊臂就位高度≤25m；吊装半径√－（3.252+52）=6m；areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 吊臂长度√－［62+（25-3）2］=22.8m；25吨汽车起重机起重性能表中上述条件允许起吊重量为7.5t，大于构件重量6.2t，满足吊车性能要求，方案成立。（2）2#灯桥1~6道部分吊车对位及支腿：软横跨障碍位置运梁车及吊车停车作业位置见下图，吊车位置与起吊位置（梁车上灯桥中心）和灯桥就位位置顺线路方向距离基本相等，为6.0米。吊机位置吊装就位位置6.0m6.0m5m16.5m起吊位置吊装场地进行平整，整理垫木以便吊车在地面打好支腿，采用加工钢质整体垫体方式，从安列卸车后直接支腿，简化现场作业。吊装参数核算：最大距离：吊机重心≤3.0m,就位时横线路距离≤3.25m，就位时顺线路距离≤6.5m，吊臂就位高度≤25m；吊装半径√－（3.252+62）=6.8m；吊臂长度√－［6.82+（25-3）2］=23m；25吨汽车起重机起重性能表中上述条件允许起吊重量为7.2t，大于构件重量5.94t，满足吊车性能要求，方案成立。（3）3#灯桥1~6道部分吊车对位及支腿：areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 运梁车及吊车停车作业位置见下图，吊车位置与起吊位置（梁车上灯桥中心）和灯桥就位位置顺线路方向距离基本相等，为6.0米。软横跨障碍位置吊机位置吊装就位位置5.5m5.5m6m16.5m起吊位置吊装场地进行平整，整理垫木以便吊车在地面打好支腿，采用加工钢质整体垫体方式，从安列卸车后直接支腿，简化现场作业。吊装参数核算：最大距离：吊机重心≤3.0m,就位时横线路距离≤3.25m，就位时顺线路距离≤6.5m，吊臂就位高度≤25m；吊装半径√－（3.252+5.52）=6.4m；吊臂长度√－［6.42+（25-3）2］=23m；25吨汽车起重机起重性能表中上述条件允许起吊重量为7.5t，大于构件重量5.94t，满足吊车性能要求，方案成立。（4）3组灯桥7~9道部分（略）。六、作业过程1、准备过程（1）灯桥材料由厂家运抵现场，选择在榆次站修所站台完成主梁、钢立柱、过渡钢柱的组装。（2）准备好各工种的人员及现场安装用具、器材，并在施工前进行安装技术及安全交底工作，完成培训，areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 贯彻落实确保工程质量与安全目标的具体措施。同时配发现场安装的安全帽、安全带、安全标示工作服等安全用具。设制安装现场的安全警示标志。（3）准备好施工所需的对讲机等通信设备。（4）每个灯桥支柱处需准备三相电源和300A以上电焊机，便于架设灯桥后的焊接工作。（5）为了整组灯桥能分两次架设，在6、7道间做格构式支柱基础3个，基础类型见施工方案，施工过程中采用A类施工，6、7道列车限速通行；因6、7道间线间距为5米，过渡钢柱定做截面为600*1200mm，确保立柱后6、7道能通行不超限列车（限界≥2.15米）；基础螺栓外露80mm。（6）过渡钢柱顶部设一个1200*600mm（钢板采用厚度为10mm）施工平台，施工平台钢板上固定一个1300*250mm托梁。同时在施工平台上固定两台小型10T千斤顶（配合调节调整灯桥主梁的高度及主梁架设时调整驰度），在场外安装在过渡钢柱施工平台上。2、Ⅰ-2道间3根支柱组立点前将在场外组装好的钢立柱装上接触网安装列车运行至2道进行准备；场内停电后至下行正线停电间的30分钟完成安装列车吊装准备及架空地线处理；下行正线停电后完成下行正线和2道间灯桥钢立柱的吊装及整正，接触网专业负责在灯桥支柱上安装肩架固定架空地线，完成后进行吊车复位、现场清理工作，送电消令。支柱整立后满足技规及下行正线大机养护规定限界要求。3、6-7道间3根过渡支柱组立点前接触网安装列车装载3根过渡支柱进入7道准备，停电后完成7、6道间3组灯桥过渡支撑钢柱组立及整正，完成后送电消令。支柱组立完成后6、7道禁止通行超限列车（CX≥2.15米），直至灯桥架设完成后将3根过渡钢柱撤除完毕，方能恢复正常行车。areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 4、Ⅰ-6道部分3组灯桥横梁架设（1）将25T汽车吊开行至安装列车平板车上并按规范固定。（2）天窗前将安装列车分解，吊车部分进入3道对位并准备，运梁部分进入4道对位准备，平整场地并整理垫木，吊车打好支腿。（3）场内停电后将晃绳穿越接触网绑好横梁两端，做好灯桥起吊准备，同时将3道上方接触网向2道方向拨移1米，使灯桥能在3、4道间顺利起吊。（4）下行正线停电后横梁起吊，吊车司机和拉晃绳人员听从作业负责人统一指挥掌握好横梁平衡，横梁从3、4道间顺线路起吊至接触网上方后转向，升至两立柱上方完成架设并穿螺栓固定牢靠，其中6道侧架于过渡支撑钢柱的托梁上，用过渡钢柱顶部施工平台上固定的两台小型10T千斤顶将主梁调整好位置，并用螺丝和压板固定好。完成后解下晃绳，下行正线送电消令。（5）然后将3道接触网恢复，复测作业范围接触网状态并调整悬挂，进行吊车复位、现场清理工作，完成后场内送电消令。5、9道外3根灯桥支柱整立点前接触网安装列车装载钢柱进入9道准备，停电后完成支柱组立及整正，接触网专业负责在灯桥支柱上安装肩架固定架空地线，完成后送电消令。支柱组立后满足铁路技规限界要求。6、7-9道部分3组灯桥横梁架设（1）将25T汽车吊开行至安装列车平板车上并按规范固定。（2）天窗前将安装列车分解，吊车部分进入8道对位并准备，运梁部分进入9道对位准备，平整场地并整理垫木，吊车打好支腿。（3）停电后将晃绳穿越接触网绑好横梁两端，做好灯桥起吊准备，同时将8道上方接触网向7道方向拨移1米，使灯桥能在8、9道间顺利起吊。areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 （4）横梁起吊，吊车司机和拉晃绳人员听从作业负责人统一指挥掌握好横梁平衡，横梁从8、9道间顺线路起吊至接触网上方后转向，升至两立柱上方完成架设并穿螺栓固定牢靠，其中7道侧架于过渡支撑钢柱的托梁上，用过渡钢柱顶部施工平台上固定的两台小型10T千斤顶将主梁调整好位置，并用螺丝和压板固定牢固并解下晃绳。（5）将8道接触网恢复，复测作业范围接触网状态并调整悬挂，进行吊车复位、现场清理工作，完成后送电消令。7、后续工作灯桥组装后的焊接、涂漆、安装9道外爬梯、电气安装、调试，尽可能占用上述天窗同时进行；剩余工作，视具体情况进行天窗或天窗外A类施工作业完成工作。申请A类施工5天，Ⅳ场内各股道（不含下行正线）列车限速通行，期间穿插施工封锁点，接触网停电，进行爬梯安装及主梁焊接工作8、拆除过渡支撑钢柱点前接触网安装列车进入7道准备，停电后先利用10T千斤顶拆下过渡支撑上平台的托梁座，安列吊车将3根过渡支撑钢拆除并装上安装列车，完成后送电消令。拆除后6、7道恢复接发超限列车。七、施工组织（略）八、安全质量保证措施（略）九、应急预案（略）十、执行规范标准及文件（略）中铁电气化局一公司太中银项目部areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15 2011年10月areasoftheintroductionofsocialcapital,improveurbanmanagementefficiencyandeffectiveness.Third,wemustadheretothe"concernedaboutfacesaving"and"theimportanceoflining"combined.PremierLiKeqiangoncepointedout:"thefaceisthestyleofthecity,andtheliningistheconscienceofthecity.Intheimprovementoftheurbanenvironment,notonlytoattentiontoface,weshouldpaymoreattentiontothelining.Todoagoodjobofenvironmentalhealth,Jeeves,trafficorderrectification,andbuiltundergroundpipenetwork,combinedundergroundroadnetwork,undergroundparking,enhancingtheoverallimageofthecity.Fourth,wemustadheretothecombinationof"scientificplanning"and"finemanagement".City"building,sevenincharge".Tocontinuetoimprovetheurbandevelopmentplanningandtheoveralllayout,coordinateandpromotetheconstructionofthenew,transformationoftheoldcity,centercitybythepullframeworktoimprovethefunction,dominatedbygovernmentorientedsociety,bylayingasolidfoundationtogatherpopularitychange.Atthesametime,toadheretoexcellencetograspthemanagement.Theestablishmentofheadquartersspecificallyatechnicalstandardsgroup,isresponsibleforthisthingcatch.Includingstreetlightingdesignandplaquesize,elevationbrushwhatcolorshouldbecarefulplanning,elaboratedesign,carefulmanagement.15