公司：Company深圳市天然气高压输配系统环观南路（观天路~雪坂大道）天然气高压管道城区施工方案文件号：A09/05/30供参考Rev.A版次Date日期Issuedby编制人Checkedby审核人ProjectApprova批准人目录1.工程概况......................................................................................................................................................22.编制依据......................................................................................................................................................23.工程量..........................................................................................................................................................34.资源配置......................................................................................................................................................45.进度计划......................................................................................................................................................76.施工方案.....................................................................................................................................................76.1施工准备...........................................................................................................................................76.2临时堆管场的设置...........................................................................................................................86.3安装隔离围护...................................................................................................................................86.4设置施工警示标志和临时过桥.......................................................................................................96.5管沟开挖.........................................................................................................................................106.6运输及布管.....................................................................................................................................126.7组对、焊接.....................................................................................................................................126.8补口补伤.........................................................................................................................................136.9回填及地貌恢复.............................................................................................................................137.穿越方案...................................................................................................................................................147.1大开挖公路.....................................................................................................................................147.2泥水平衡顶管穿越方案.................................................................................................................157.2.1方案说明..............................................................................................................................157.2.2施工工艺流程......................................................................................................................157.2.3平面布置、井内布置及管内布置......................................................................................167.2.4出土方案............
