(精品)钢筋混凝土圆管涵施工方案.doc

We will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication "zero resistance". 　　To constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure "zero." 　　To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of "zero risk". To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. 　　To further standardize trading, and strive to achieve "according to law, standardize and fair." Innovation of performance management, to ensure that potential employees "zero fly". To strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in "five type Enterprise" construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening "four good" leadership construction, full play levels cadres in enterprise development in the南水北调跨渠桥梁工程SG7标圆管涵工程施工技术方案与措施南水北调SG7标项目经理部 2012年3月26日圆管涵工程施工技术方案与措施目 录一.工程概况二.施工工艺三.测量放线四.基坑开挖及基底处理五.基础浇筑六.关节安装七.侧墙、八字墙、截水墙及洞口铺砌砌筑八.涵背回填九.质量保证措施十.安全保证措施十一.环境保护措施十二.文明施工措施十三.施工计划与安排十四.资源配置钢筋混凝土圆管涵施工方案一、 工程概况：本标段钢筋混凝土圆管涵位于跨渠桥梁两侧，共计22道。

汇总如下表：桥 名圆管涵中心桩号交 角 (°)涵径涵长（m）备注郭河生产桥K0+180.811210016.5　K0+296.410016.5　薛庄生产桥K0+069.77510018　K0+17410024.5　南高峒交通桥K0+078.99010015.5　K0+182.710016.5　岳洼生产桥K0+044.9571152009.5　K0+169.07620021　大峪庄生产桥K0+134.58910520025　K0+27820025　薛三陵交通桥K0+83.7965510015.5　K0+228.0410015　三陵乡交通桥K0+147.0910010026.5　K0+246.58810031　陈三陵生产桥K0+044.64611810010　K0+167.70211810018　西官庄交通桥K0+064.22811010010　K0+205.01610019　西袁庄交通桥K0+111.29010014　K0+212.410017　南两岗生产桥K0+120.3310710019　K0+24.82710016　二、施工工艺 钢筋混凝土圆管涵施工工艺框图测量放样开挖基坑砂砾垫层浇基底混凝土安放管节回填白灰土回填白灰土回填白灰土浇管底两侧混凝土基础侧墙、八字墙截水墙、洞口铺砌砌筑 涵背回填 三、施工放样 使用全站仪对涵位进行定位，施工前放出中桩涵洞轴线并四角及基础边线。

施工前详细审核图纸并计划 如沉降缝位置 四、基坑开挖及基底处理 按基坑范围用机械开挖至设计基底标高上30cm再用人工精细找平并按要求修整清至设计标高后用轻型触探仪检测地基承载力，如不能达到设计要求的承载力需报请变更进行地基加固处理如满足要求可继续施工砂砾垫层分层夯实，每层厚度不大于30cm五、基础浇筑 根据涵洞基础尺寸将基坑两侧整理成型或用模板进行浇筑管基分两次进行浇筑第一次浇至管底外壁下2~3cm，待强度达到设计强度的50％后进行管节安装，安装完毕后再进行二次浇筑 混凝土由拌合站按设计要求拌制运至工地第一次浇筑应使砼顶面符合设计坡度表面平整第二次浇筑前应将顶面打毛，在管节两侧进行对称浇筑六、管节安装 管节预制完成，强度达到70％后方可进行安装安装时由中间沉降缝处向两侧进行，确保管端与沉降缝处在同一垂直断面上同时在管底垫2~3cm水泥砂浆，确保管节顺直、稳定安装完成后，管节间缝隙按设计要求使用麻绳、4层沥青浸制麻布及粗铅丝绑扎七、侧墙、八字墙、截水墙及洞口铺砌砌筑侧墙基础、八字墙、截水墙及洞口铺砌均为M7.5浆砌片石，侧墙、缘石为M7.5浆砌块石片石砌体应成行铺砌，并砌成大致水平层次，镶面石应按一丁一顺砌筑，任何层次石块应与邻层石块搭接至少80mm，砂浆砌筑缝宽应不大于30mm。

先铺砌角隅石及镶面石，然后铺砌帮衬石，最后铺砌腹石角隅石或镶面石应与帮衬石互相锁合，帮衬石与腹石应互相锁合帮衬石及腹石的竖缝应相互错开，砂浆砌筑平缝宽度不应大于30mm，竖缝宽度不。