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重庆某轻轨高架车站施工组织设计(清水混凝土)《重庆市****轻轨站工程建筑、结构、安装设计图纸》(2009年6月、B版)
《西南地区现行建筑标准设计通用图》
《混凝土结构施工图平面整体表示方法制图规则和构造详图》(03G101)
DB34/T 1589-2020 民用建筑外门窗工程技术标准 附条文说明.pdf编制依据·························································2
第一章工程概况···················································4
1、工程建设基本概况··················································4
2、工程地质及自然条件概述···········································4
3、工程设计概况······················································5
4、现场施工条件······················································5
5、主要分部分项工程量·················································5
6、工程特点、难点、重点···············································6
第二章施工组织与部署················································7
1、管理目标··························································7
2、施工组织机构·······················································7
3、施工部署···························································9
第三章施工准备及资源配置计划········································11
1、施工准备···························································12
2、各种资源配置计划···················································12
第四章施工进度计划··················································14
1、总工期····························································14
2、施工各节点计划及说明··············································14
3、工期保证措施·······················································14
第五章施工平面布置·················································15
1、平面布置原则······················································15
2、现场平面布置及说明·················································15
3、现场布置图·························································16
第六章主要施工方案·················································16
1、清水混凝土系统施工方案·············································16
2、钢筋工程施工方案·················································60
3、外脚手架施工方案··················································72
4、砌体工程··························································77
第七章工程质量保证措施·············································81
1、质量保证体系框图···················································82
2、保证质量奖罚办法···················································83
3、加强施工检测·······················································83
4、工程质量验收·······················································83
5、施工阶段性的质量控制措施···········································84
第八章工期保证措施·················································84
1、组织管理措施·······················································84
2、过程管理措施·······················································84
3、施工进度计划的管理················································84
4、物资供应保证·······················································84
第九章安全文明施工措施·············································85
1、安全目标···························································85
2、安全保证体系·······················································85
3、安全生产策划·······················································86
4、管理制度···························································87
变电所设备层、站厅层、站台板下夹层、站台层共四层
本工程±0.000相当于绝对标高为225.758m
C25、C30、C50
HPB235、HRB335
500*1400、2200*1800
2、工程地质及自然条件概述
2.1、地形地貌及地层岩性
根据重庆市勘测院《****车站岩土工程详细勘察报告》,场地地处长江南岸岸坡中上部,原始地貌属河谷侵蚀斜坡沟谷地貌。岩层呈单斜产出,区内无断层,地质构造简单。场地内沿途层序正常,无滑坡、崩塌、危岩等地质现象,场地稳定,适宜建设本工程。
车站范围内的气象特征具有空气湿润,春早夏长,冬暖多雾、秋雨绵绵的特点,年无霜期349天左右。
湿度:多年平均相对湿度约79%,绝对湿度17.1Hpa左右。
风向:主要风向为北风,全年平均风速为1.3m/s左右,最大风速为26.1mm。
本场地为丘陵斜坡地貌,临近长江河谷岸坡,地表水系不发育,地表水排泄畅通,水文地质条件简单。场地地下水可分为松散层空隙水和基岩裂隙水,由大气降水补给,基岩裂隙水以脉状或网形似储存,本场地以砂质泥岩为主,裂隙不发育,基岩裂隙水量小。根据****长江大桥****立交工程在钻孔内采集的水样水质分析成果,本场地地下水对混凝土无腐蚀性。
本车站场地地质条件较好,在拟建场地范围未发现断层、滑坡、软弱夹层等不良地质现象。
建筑重要性等级为一级,防火等级为一级,抗震等级为三级,为无障碍设计。
本工程外墙、站厅公共区与设备区的分隔墙、地面一层轻轨备用房与变电所分隔墙均采用300mm清水混凝土墙,设备区内填充墙采用陶粒空心砖,M7.5水泥砂浆砌至该屋顶板地。
本工程主要承重结构为建桥合一三层框架体系,六跨,上行线跨径分别为19.016m,20.109mX4,18.089m。主体结构为门墩结构(QTYD01~QTYD07),QTYD01墩柱间距为8.6m,其余门墩墩柱间距为13.4m。
4.2、季节性施工条件
本工程预计开工时间为2009年10月份,正处于重庆市秋雨绵绵时期,但车站处于大桥下方,一般情况下不会受到下雨的影响。
本车站东北面为高边坡,高度10m左右,南面为桥墩,西面为脚手架搭设的人行天桥,东、南、北面均无法形成有效施工道路,现目前已在西面人行天桥下方外架处留设了宽4.5m的临时施工道路,施工现场内由于场地狭窄,无法形成环线,材料只能运至施工现场西面,预计在主体大面积施工时交通运输比较紧张。
5、主要分部分项工程量
6、工程特点、难点、重点
6.1、本工程场地呈长条形,场内只有西面靠近人行天桥处有施工道路,且为单行道,导致材料进场困难。
解决方案:进行分段施工及夜间作业,材料尽量控制在夜间进场。
6.2、场地复杂,位于****大桥引桥匝道下方,四面均有桥墩,且施工场地净高受到限制,不利于塔吊作业。
解决方案:拟采用两台4210塔吊以确保能覆盖70%的水平作业面积,能完成吊装高度第三层(站台下夹层)231.258M的模板安装就位,231.258M以上的材料先用塔吊吊至位于231.258M层的卸料平台上,再用人工进行垂直运输与水平运输;塔吊安装位置进行精确定位,使塔顶的位置置于原有两桥梁间隔净高最高处,确保能达到最大吊装高度,其余塔吊覆盖死角部位采用汽车吊与人工相配合。
重庆市****一期工程12标
6.3、本工程外墙、站厅公共区与设备区的分隔墙、地面一层轻轨备用房与变电所分隔墙均采用300mm清水混凝土墙,该类清水混凝土在****三号线是首次使用,均无相关施工经验,故难度相当大。解决方案:项目部在轨道公司、设计单位、监理单位的全力支持下,联合科研院所、国建华清咨询公司,分析了本工程及重庆市具体情况,制订了切实可行的专项施工方案,可以确保清水混凝土工程的工程质量。
(1)、质量目标:合格。
(2)、进度目标:确保能在业主方规定日期内完成竣工验收。
(3)、文明施工目标:确保重庆市文明施工样板工地。
(5)、环境目标:施工现场目视无扬尘,无有毒有害物质污染环境。
(6)、成本管理目标:计划成本控制范围之内。
2.1、项目组织机构图:(见下页)
代表法人管理整个项目日常工作
协调资源组织生产,对接业主、监理、安监等职能部门
负责技术工作,对接业主、监理、设计、质监等单位
负责预算、合约、成本、签证
负责给排水、电气、消防、暖通、弱电等专业安装
协助生产经理负责现场施工管理工作
协助主施工员负责现场施工管理工作
定位、水平、沉降观测等测量工作
协助项目经理材料采购、租赁;负责保管、发放、返还
协助商务经理,负责预算、合约、成本、签证工作
负责安全教育、培训、现场安全管理、安全检查
负责材料进场、施工质量控制、检查以及成品保护
2.4、劳务队伍的安排
项目经理部根据本工程的工程量、合同工期、施工进度计划,编制劳动力需用计划。从我公司长期合作信誉较好的劳务队伍中择优选择劳务企业,向其发出项目劳务招标书,由公司组织劳务招标。劳务企业实行专业队长负责制,并建立与之相适应的管理体系且配备足额相应的管理人员。由公司与之签订劳务合同,明确各自的权力与义务,以合同为杠杆,以节点工期目标、质量目标、安全文明施工目标为考核标准,以优质优价、严格奖罚为手段,确保各项施工任务按合同要求圆满完成。劳务企业业务上接受区段施工管理人员的管理,同时接受项目经理部的指导、监督、管理、控制。
根据现场实际特点、材料周转及堆码合理组织施工,本工程以伸缩缝为界,将工程划分为三个施工区段,组织流水施工(详见下页施工区段划分图)。
总体施工顺序为:先施工3区电缆夹层,然后2区和3区平行施工,待2区、3区结构基本完成时穿插施工1区。
各区段施工顺序为:普通梁柱混凝土标号一致时在竖向及水平结构钢筋、模板支设完之后采取整体浇筑。竖向结构施工顺序:钢筋绑扎→模板支设→混凝土浇筑;水平结构施工顺序:底模支设→绑扎钢筋→侧模支设→混凝土浇筑。
墩柱和盖梁浇筑时,支撑脚手架受力必须传至地面,即通层搭设支撑架。
SH/T 3123-2017标准下载3.3、主要施工方法的选择
(1)、钢筋连接方式的选择:为了确保钢筋连接质量,积极响应重庆市建委关于《重庆市建设领域限制、禁止使用落后技术的通告》(第二号)的要求:梁板水平筋及柱墙竖钢筋直径Φ16及以上统一均采用剥肋滚轧直螺纹连接,直径Φ14的Ⅱ、Ⅲ级钢筋采用焊接连接,其它钢筋采用搭接连接。
(2)、模板体系的选择:模板体系详清水混凝土系统施工方案,普通混凝土模板采用木胶合板(18㎜厚),支撑体系采用碗扣式满堂脚手架。
(3)、混凝土供料方式:采用商品混凝土,用汽车泵进行浇筑,局部汽车泵覆盖不到的区域用人工配合塔吊转运。
(5)、防护及脚手架选择:采用落地式钢管脚手架,满布安全网。
第三章施工准备及资源配置计划
1.熟悉和审查施工图纸
2.工程资料的收集和整理
建标 112-2018 城镇供热厂工程项目建设标准3.向工程师提交工程量月报