6003维修站施工方案

工程概 .-2...............................................................................................................................-2...............................................................................................................................-2...........................................................................................................-2...........................................................................................................-3..........................................................................................................................................-3..................................................................................................................................-4..............................................................................................................................-4...............................................................................................................................-4.......................................................................................................................-5...............................................................................................................................-5.......................................................................................................................-5..................................................................................................................................-6...............................................................................................................................-6.......................................................................................................................-7...................................................................................................................-8...............................................................................................................................-9.............................................................................................................................-12.........................................................................................................................-14.............................................................................................................................-17.........................................................................................................-18........................................................................................................-19................................................................................................................................-20.....................................................................................................................-20.............................................................................................................-21.................................................................................................-23........................................................................................................-25领导小组及资 .-25HSE体系.............................................................................................................................-26.............................................................................................................-26.........................................................................................................-29.....................................................................................................................-31............................................................................................................-33.............................................................................................................................-33.............................................................................................................................-33............................................................................................................................-34.................................................................................................................-34.................................................................................................................-34......................................................................................................................................-34...................................................................................................................-34...................................................................................................................-35...........................................................................................................-35..................................................................................................................................-36..................................................................................................................................-38..........................................................................................................-3969m×18mJC-124个，垫层底标高-2.70m，JC-1短柱顶标高0.10mJC-24个，垫层底标高-2.70m，JC-2短柱顶标高-0.10mC35C20，混凝土50mm40mm。综合楼独立基础J-122个，垫层底标高-2.60m，J-29个，垫层底标高2.60m，J-39个，垫层底标高-2.60m，J-3a3个，垫层底标高-2.60m；基础、基之间（赤道附近）2932mm252.3mm。0.3kN/m2,A类。85%31%。场地地貌：本工程所在摩拉岛位于文莱—3米左右1.0m左右。表1.4- 工程施工特点重点和难 1GB50026—2JGJ8-3、《石油化工建（构）GB50453-4GB51004-5、《GB50202-6GB50204-7GB50666-8GB50300-9、《钢筋焊接及验收规程JGJ18-10JGJ107-11JGJ79-12、JGJ59-13JGJ130-14JGJ46-15、GB50484-16JGJ146-17、《安全生产许可证条例（2014修订）1819HSE202122、施工手册（第五版场地平整→定位测量→井点降水→土方开挖→基坑清理→修整找平→→混凝土垫层施工→基础施工→基础验收→土方回填→搞好“三通—平”(水通、电通、路通、场地平整)。修通场区主要运输干织土方工程的挖填、找平工作等。 1/20000。X=554200.Y=601619.

X=554200.Y=601670.X=554131.Y=601601.

X=554131.Y=601688.1.0m左右。因此对于大型、重型设备基础施工需要采取降水措施。本0.5m为宜。m=1/1，基础土方开挖2m3反铲挖掘机，自卸汽车装运至指定地点，回填所需的土方二次回运。基坑（槽）300mm采用人工清槽，防止基底工艺流程：基底清理→检验土质→分层铺土→碾压密实→找平验收50mm，含水率应符合规定。填土前50型装载机装土，自卸汽车运土。填土应分层夯实，每层虚350mm。采用小型压路机（立式打夯机配合）分层夯实，夯实应互相3遍，压实系数≥0.94。60吨。检查分两步进行：24台。筋做成@300的马凳，马登做成“几”字型，如下图所示。

a、焊接：直径大于28mm的带肋钢筋，其焊接应经试验确定。纵向受力钢35d（d为连接钢筋的较小直径）500mm50%，纵向受验收应符合《钢筋焊接及验收规程》JGJ18-2012要求。b、机械连接：纵向受力钢筋的机械连接接头应相互错开。钢筋机械连接接头II35d（d为连接钢筋的较小直径）；纵向受拉钢筋的接头面积百分率不宜大于50%，纵向受压钢筋的接头面积百分率可不受限术规程》JGJ107-2016要求。c、绑扎搭接：纵向受力钢筋的绑扎搭接接头应相互错开，钢筋绑扎搭接接头25%；对柱类构件不宜大于50%。d、在施工中，当需要以强度等级高的钢筋代替原设计中的纵向受力钢筋时，e、现浇框架钢筋焊接或绑扎接头不宜位于梁的中部，且宜避开梁端柱端的箍f、绑扎接头搭接处应用（20-22）号铁丝扎紧，扎紧在搭接部分中的中心和两→→→模内杂物清理→模板安装→方木支撑→调整尺寸、标高→模板验收→砼浇筑安装尺寸准确，防止凹凸不平，模板加固采用钢管支撑,柱模板根部定位（或内撑可在放完线后，在楼地面钻孔插Φ6或Φ8（或内撑），运输→浇筑→振捣→抹面→2大于振动半径的1.5倍（一般为300～400mm）。振捣上一层时，应插入下层约50mm。以消除两层间的接搓。当钢筋较密时，可以用ф30振动棒振捣作业。砼应连28天送检，同条件试件必须100lOOm3100lOOOm3200m3取样不得少于一次；(5)在施工缝处继续浇筑混凝土时,应符合下列规定已浇筑的混凝土,1.2MPa在已硬化的混凝土表面上,应清除水泥薄膜和松动石子以及软弱混凝土层并加以充分湿润和冲洗干净,且不得积水。即要做到:去掉