完整版旧桥维修施工方案.docx
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完整版旧桥维修施工方案
桥梁维修工程）
专项施工方案
编制单位：
**建设集团有限公司
编制人：
审核人：
审批人：
编制日期：
二〇一四年月
1······························································································第一章编制依据··········1··························································································第二章工程概况···············1·······················································································第一节工程概况及地理位置
1····················································································第三章施工部署····················1···············································································第一节·人员组织··················2···························································第二节··················施工准备·····················2······································第三节···································材料用量计划···················3························第四节··············································劳动力需用计划···················4···········第五节························································主要施工机具计划···················4···第六节······························································主要施工进度计划·····················4······························································第四章施工工艺、方法和技术························4···························································第一节处理方案···········································
：
1.B2桥根据设计提出的桥梁现状病害，桥维修内容如下4··························································桥根据设计提出的桥梁现状病害，桥维修内容如下：
2.B65··························································5···················································第二节维修材料及指标··········································
混凝土1.5·················································································································································钢材2.5·····················································································································································浆砌片石3.5·············································································································································．注入水泥原浆45···································································································································．垫层砾（碎石）55·······························································································································5······················································第三节施工工艺、方法和技术要求························
．墩台基础处理5····································································································1·······························．墩台身处理7···················································································2····················································．上部结构8······································································································································3·····４．附属设施01·······································································································································10································································第五章施工工期保障措施···························10·················································································施工组织实施的保障第一节···
11····································劳动力、材料、设备供应保障第二节····································
1
11·····································································第六章保证质量的技术组织措施·········11··································································第一节建立健全质量保证体系············11····················································第二节············确保工程质量的措施·················12··································第三节···························施工中材料质量的保证措施···········13··························第四节·································成品保护措施·······························13························································第七章安全保障制度········································13·····················································第一节安全保证目标········································
13·················································安全保证体系第二节············································
15··············································第三节施工安全保证措施·········································
15···········································机具设备安全保证措施第四节······································
16···················································································第五节应注意的安全事项·····
17·············································································第八章夏季施工措施···················17·······································································第一节夏季施工的组织管理·············
17·································································第二节雨季施工措施·····························
17···························································第三节夏季施工措施···································
17·····················································第九章现场文明施工措施·····································18···············································第十章施工现场环境保护措施·····································18·········································第一节防止破坏景观生态的保护措施································
18····································施工现场及临设环境卫生措施····································第二节
19·······························第十一章施工现场消防保卫、料俱、突发事故处理措施·····················19·························································第一节现场施工管理措施······························
19·············································施工现场料具管理措施第二节····································
19······································································突发事故处理措施第三节·················
22···············································B2附一桥现状示意图：
···········································
23···············································桥现状示意图：
B6附二···········································
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第一章编制依据
1.施工单位与建设单位签订的施工合同；
2.本工程的招标文件；
3.适用本工程的其他国家标准。
4.《城市桥梁工程施工与质量验收规范》（CJJ2-2008）；
5.《定安县南丽湖冷泉高尔夫球场桥梁工程》设计文件及图纸；
6.《施工现场临时用电安全技术规范》（JGJ46-2005）；
7、《钢筋混凝土用钢第一部分：
热扎光圈钢筋》（GB1499.1-2008）和《钢筋混凝土用钢第二部分：
热扎带筋钢筋》（GB1499.2-2007）；
9、《公路桥涵施工技术规范》（JTG/TF50-2001）；
第二章工程概况
第一节工程概况及地理位置
1.**为一现状桥梁，B2桥为两跨盖板涵，台身及基础为浆砌片石结构，基础受洪水冲击出现缺陷，台后塌方泥土流失；B6桥为11孔土路面石拱桥，墩台基础为浆砌片石扩大基础。
7、8号桥墩迎水面受洪水冲击，断面毁损已经接近50%，桥面坑洼不平，拱圈及墩身出现松散现象。
2.*******镇境内，本工程为景区内道路，桥梁为跨越天然排洪小溪和**湖泄洪主河流。
第二节维修设计标准
B2桥：
1、行车速度：
15km/h。
2、设计荷载：
公路Ⅱ级折减（折减系数为0.8）。
3、设计基准期：
100年。
4、结构环境类别：
Ⅱ类
5、行车道：
单车道。
6、限载：
15t。
B6桥：
2。
3.45kPa/m1、设计荷载：
人群荷载2、设计基准期：
100年。
3、结构环境类别：
Ⅱ类。
4、设计洪水频率：
漫水桥。
第三章施工部署
第一节人员组织
1
根据本工程的特点，结合我单位进行类似工程的丰富经验，公司将安排一个有专业石匠、风钻工、模板工、混凝土工和钢筋工的专业队伍。
指派有相关经验的施工技术人员现场精心管理和指导。
在项目部的领导下投入施工生产。
项目领导本着对业主负责对社会负责的态度，确保相邻单位和配套工程的道路畅通，服从建设单位及现场监理的管理，从严控制工程质量，同时抓好安全生产和文明施工，责任到人，实行目标管理，精心组织施工，以一流的质量回报业主。
以一个整体素质优良、质量进度意识强、经营管理水平高的形象展开对本工程的组织、指挥。
要求施工作业人员具有工种上岗证和相应的岗位职称，有胜任本工程管理的能力承担工程施工任务。
在项目经理的领导下，各岗位人员分工明确，责任明确。
第二节施工准备
1.根据工程进度计划、工程量、施工现场实际情况，做好人员、机械设备及物料进场工作，班组操作人员必须经过培训方可上岗，特殊工种操作人员持证上岗。
2.施工前项目总工组织施工技术员、质量检查员、测量员、安全员等有关人员认真熟悉施工图纸及有关技术资料，结合现场实际情况掌握施工的重点、难点，提出设计中存在的问题，为图纸自审、会审做好准备。
3.施工前技术负责人向操作人员详细技术交底，使全体操作人员领会设计意图，明明白白操作。
4.必须熟悉技术规范、标准及施工方法。
5.提前进行原材料的采样送检试验，为施工中的材料供应奠定基础。
第三节材料用量计划
垫层级配碎石（砂砾）、片石、钢筋、混凝土、水泥等在开工前十天洽谈妥善，并在开工前三天将水泥、石料、钢筋进入现场。
据现场调查，已对B2、B6桥维修工程数量做了汇总，请各有关方面人员核实，以便于采购和对施工班组发包。
2
材料工程数量表
序号项目单位数量备81.6碎石（砂砾148.片m4479.1钢12.46mC35混凝239.64mC35片石混凝闸m1.C35钢纤维混凝4.4mC20混凝56M15砂m52.φ38成52.注10.1：
1原浆水151钢埋在砼41扣21顶215.m1河床土挖43清洗岩m139.桥面土挖m1141桥面清m391勾m89.0m2拱圈批32锥坡清mm2锥坡挖2m2锥坡及台后填4ｍ2道路设12桥梁标212围314.41k2护栏不锈钢复合15.8k2护栏基座钢2φ5PVC2.m3水泥稳定
劳动力需用计划第四节根据施工计划针对技术工种，B2和B6桥准备穿插安排施工，计划总人数17人。
B2、B6维修桥用工计划表
序号工种人数备注
21现场管理人员21试验工
32风钻工1注浆工4
5石匠2
模板工61
7电工1
挖机手81
9钢筋工2
混凝土工210
111普工汽车司机12
1
3
第五节主要施工机具计划
机械准备：
对所有施工机械进行全面的清洁、保养、调试、检查和维修。
并配齐了生产施工过程中部分机械的易损备件，保证各类机械运转处于良好状态。
施工机具进场表
序机械名单数备
1挖1
12空压
1风钻3
4注浆1
5抽水1
16振捣器7台木工机1
8钢筋切断机1台
1台9电焊机
台110弯铁机
辆1
泥头车11
计划主要施工进度第六节
1.围堰及基础2014年2月16日~2014年2月19日4
2.墩台身注浆：
2014年2月18日~2014年2月23日6
3.墩台身加固：
2014年2月21日~2014年2月26日6
4.桥面及护栏：
2014年2月27日~2014年3月10日12
5.附属结构：
2014年3月5日~2014年3月15日11
施工进度计划横道图（总工期28天）
第四章施工工艺、方法和技术
第一节处理方案
1.B2桥根据设计提出的桥梁现状病害，桥维修内容如下：
（1）新增桥面板跨越涵洞，搁置于原旧板上，增强结构均衡受力。
（2）台后护砌段重新砌筑，设置锥坡，增加河道铺砌层。
（3）对墩台身重新勾缝。
（4）清除桥梁范围内杂物。
4
（5）加强桥梁范围内排水工作。
2.B6桥根据设计提出的桥梁现状病害，桥维修内容如下：
（1）更换桥面填料。
（2）对拱圈孔洞进行注浆加固，勾缝均进行重新施工，拱圈下表面进行抹面。
（3）对墩台身注浆加固，重新勾缝。
（4）对墩台基础重新注浆后，设置整体基础。
（5）硬化河道，增设桥台锥坡。
（6）河道迎水侧设置防护体。
第二节维修材料及指标
1.混凝土
C35砼：
桥面板、栏杆座。
3。
75Kg/mC35钢纤维砼：
拱上填料，钢纤维含量为
C35片石混凝土：
基础、河道铺砌。
C20混凝土：
河道铺砌。
3，最大水灰比为0.5混凝土要求最小水泥用量不小于300kg/m，混凝土最大氯离3。
3Kg/m子含量不得大于0.15%，最大含碱量为2.钢材
钢筋：
HPB300钢筋应符合国家标准《钢筋混凝土用钢-热轧光圆钢筋》（GB1499.1-2008）的规定，HRB400钢筋应符合国家标准《钢筋混凝土用钢-热轧带肋钢筋》（GB1499.2-2007）的规定。
钢板：
应采用《碳素结构钢》（GB/T700-2006）规定的Q235-B钢板。
3.浆砌片石
M7.5浆砌片石：
锥坡，石材强度等级为MU30。
4．注入水泥原浆
．垫层砾（碎石）5施工工艺、方法和技术要求第三节
．墩台基础处理1）处理原则（1a加强墩台基础的整体性。
减少水流对基础的冲刷。
b不减少过桥断面的过水面积。
c应减少对原结构损伤。
d扩大基础加固
（2）施工步骤如下：
a1）施工围堰，排水；河道清理、整平硬化减少流水阻力；）基础表面的松散砂浆、浮渣、杂物等清洗干净；缝隙内部未能清洗部位用高25
压水枪冲洗。
3）对裂缝处填筑合适大小块石，并采用快速凝固防水砂浆进行外层封闭处理；
4）采用小孔道注浆法对基础加固；
5）墩台基础采用C35片石混凝土连成整体。
b材料要求
1）片石石材要求结构密实、质地均匀、不易风化且其抗压强度不低于30MPa，片石的尺寸不小于15~25cm，其中一边应大于30cm。
2）砂浆强度不低于M10；
3）水泥应采用高品质的强度等级为42.5的硅酸盐水泥。
c施工工艺
1）小孔道注浆
对处理范围内裂缝进行普查并对裂缝宽度、长度及裂缝数量进行标记和记录。
墩台为砌体结构，结构较为松散，采用小孔道低压注浆加固。
在墩台钻25~38mm小孔，横向间距90~120cm。
小孔道为低压注浆0~0.5MPa，仅在孔道注浆量小时，可适当采取加压措施，但是最大出口压力应小于0.8MPa。
为了达到较好的加固效果，每个注浆孔应分2~3
次间歇注浆,注浆间歇时间取45分钟，注浆过程中应随时注意注浆压力的变化。
注浆过程中出现注浆终止条件中的一条，就可以终止注浆工序：
Ⅰ、注浆稳定压力达到设计要求，可终止。
Ⅱ、注浆孔附近砌缝开始大量冒浆，或附近注浆孔开始出现喷浆现象，在出现上述现象后，经间歇反复3~5次注浆仍存在，可终止。
2）片石基础施工
原来部分基础未连接成整体，新增片石混凝土将原基础连接成一个整体，片石掺入量不超过混凝土体积的20%，片石应具体抗风化及抗侵蚀性。
d
升级会员 