1、上海联合异氰酸脂工程项目Shanghai Integrated Isocyanates Project (IIP)地下电缆施工方案Installation Scheme for Underground Cable合同号：A0ZH00- SB-C2041D/ A0ZH00- SL-C3041D编 制Edit： 冯启胜审 核Review： 邱祥明安 全safety： 王建生南化集团建设公司上海工程项目部NCIGCC Shanghai Project DepartmentJuly 2005目 录ContentsA.工程概况General3B.编制依据 Edit reference3C.施工程序及施工2、技术措施 Construction Procedure and Technical Measure of Construction3A.工程概况General该工程由我单位承建的电缆安装部分主要包括：SBPC部分，电缆沟从配电室B541到A523(区域范围E1745.000),10KV,接地和控制电缆从配电室B541到A523, 电缆沟从配电室B541到A628(区域范围E1780.500),10KV,接地和控制电缆从配电室B541到A628, 包括10KV,接地 控制电缆的电缆沟从配电室B541到A520冷却水HV马达, 电缆沟从配电室B541到MMDI区域的应急槽的马达, 电缆沟从管廊P.3、R.73到达B609,B620和B648建筑物以及SILC北电缆沟等；SLIC-N部分，从B341到A300部分电缆沟（区域范围N1248.4以北）B341至B330电缆沟,B341至B342.B301.B325的电缆及分支电缆沟,B341至B320的电缆及电缆沟,另外还有B200的路灯电缆及电缆沟,装置SBPCSILC区域B300，B400,B500,B600,A400,A500和A600的通讯电缆沟及所有电缆沟的标记.Cabling work covers: cable trench from B541 to A523(E1745.000),10KV,earthing and contro4、l cable from B541 to A523, cable trench from B541to A628(E1780.500),10KV, earthing and control cable from B541 to A628,including 10kv,earthing and control cable trench from B541to A520 cooling water HV motor, cable trench from B541to MMDI emergency tank motor, cable trench from PR73 to B609,B620,B645、8 and cable trench in SLIC-N; For SLIC-N, cable trench from B341 to A300(North to N1248.4),cable trench from B341 to B330, cable trench from B341 to B342,B301 and B325, cable trench from B341 to B320, B200 street lighting cable and cable trench. Telecom cable trench and trench marker in B300，B400,B56、00,B600,A400,A500 and A600.B.编制依据 Edit reference 1. 由中国成达工程公司提供的相关施工图及配套的安装图集 AFC and Typical DWG2. 电气装置安装工程电缆线路施工及验收规范GB50168-92 GB standard C.施工程序及施工技术措施 Construction Procedure and Technical Measure of Construction1 施工前准备：Preparation1） 首先组织施工班组及有关人员熟悉有关施工图、资料、规范、标准等，主管技术人员向施工班组作技术交底并作好技术交底资料，使施工人员7、熟悉该工程的技术要求及要领，以便顺利完成电气安装工作。Technical orientation for any requirement on AFC, Specification and Standard.2） 勘察电缆线路所经地段的地形及有无障碍物，核对和记录各地段的长度Underground obstacle investigation and record it. 3） 事先与各有关单位联系，了解及核对地下设施，防止在施工中误伤各种地下管线.Prevent any damage on underground facility.4） 确定电缆穿越各路口的地下涵管已施工完毕Verify t8、he road across sleeve is installed.5） 根据电缆路径的特点和每盘电缆的长度，制定技术措施和安全措施，确定挖沟和敷设电缆的方法和次序set up the trench excavation and cable pulling sequence.6） 准备好必要的工具、材料，主要为挖沟用的挖机、铁锹、镐以及敷设电缆用的保护砖块、细砂、警示带和锯断电缆用的断线钳、钢锯等Tool and equipment preparation, including brick, sand and warning line. 2 电缆沟槽的开挖 Trench Excavation9、 1） 开挖前向作业人员进行施工交底 Construction orientation to workers2） 在开挖前向施工部门提出申请，对施工内容作出风险评价，采取防范措施，报HSE部门批准. PTW approved for excavation and risk analysis assessed and approved by HSE.3） 画线 首先根据根据施工图纸确定电缆沟的走向，然后根据沟内电缆根数、电缆间的距离确定电缆沟的宽度 Line out the trench and determine the width of trench based of the quantit10、y of cables and the interval distance between cables.4） 挖沟 根据图纸要求确定电缆沟的挖掘深度（如图所示），当路面不成型时，应考虑规划路面的标高，以保证路面修好后电缆的深度能满足规程的规定，与管线交叉时，应根据实际条件加深电缆沟或加保护设施. Excavation depth shall follow the DWG. In case the road not yet formed, the excavation depth shall also consider the final road elevation and the dept11、h shall meet the specification. Where cabling conflicts underground pipe, necessary protection or deeper excavation would be applied.5） 挖沟时应将路面的坚硬材料与下层的细土分散电缆沟两旁，以便电缆敷设后从沟旁取细土覆盖电缆（或将余土外运至现场外）；沟两侧应各留0.3m宽的走道，以利工作人员通行，并防止沟边石块等硬物掉入沟内Excavated materials shall be tipped along the both edge of trench and 12、hard material and find soil shall be separated. Find soil will be used for cable bury ( surplus excavated material will be shipped out of site). 0.3m wide walkway on both edge inside trench shall be provided.6） 挖沟时应考虑土质情况及临近建筑设施，作好措施，防止塌方和危及临近建筑的安全Measure shall be taken to prevent collapse and any d13、amage to buildings in vicinity. 7） 挖沟时还应根据交通安全的要求设置围栏、警告标志、夜间设红灯Barricade and warning mark shall be set up. Red light shall be provided at night time.3 敷设电缆 Cable Pulling1） 电缆敷设常用的有两种方法，即人工敷设和机械牵引敷设。无论采用哪种敷设方法为了保证施工人员的安全和电缆施工质量，都得先将电缆盘稳妥地架设在放线架上（或用起重机将电缆盘吊起）。架设电缆线盘，要将电缆线盘按线盘上的箭头方向滚至预定地点，再将钢轴穿于线盘轴孔中，14、钢轴的强度和长度应与电缆线盘重量和宽度相结合，使线盘能活动自如。我方拟采用人力敷设电缆，首先根据路径的长短，组织劳力由人扛着电缆沿电缆沟走动敷设，也可以站在沟中不走动用手抬着电缆传递敷设。敷设路径较长时，应将电缆放在滚轮上，用人力拉电缆，引导电缆向前移动，如图所示.Cable pulling usually would be by manual or by mechanical pulling. Safety and quality shall be guaranteed in both cases. Cable reel shall be placed on a roller or lift15、ed by crane. Rotate the cable reel and place the arrow shown on reel at the designated position. Insert roller into the reel and the roller shall satisfy with the weight and width of cable reel. TC plans to pull cable by manual. Roller will be provided for cable pulling. 2） 直埋电缆敷设前，应在铺平夯实的电缆沟先铺一层10016、mm 厚的细砂或软土，作为 电缆的垫层.Before placing cable on trench, 100mm thick find sand or soft soil shall be paved on the bottom of trench which shall be compacted.3） 在检查所有过路涵管中无异物堵塞后，穿好绳索、铁丝，有多根电缆平行敷设时，应核对和查清电缆位置，防止穿错. Clean up any obstacle in sleeves. Check the cable rout and the sleeves in case multiple cable17、s will go through the sleeves.4） 按所需数量在电缆沟旁放好保护砖块和细砂Place brick and find sand along the trench edge.5） 严格分工，指定电缆线盘、电缆牵引头、各过路管、电缆转弯处等各项工作的负责人、联络人和现场安全负责人，并布置各岗位的职责Designated personnel shall be provided at cable reel, sleeve and bending.6） 指定专人核实电缆敷设长度及预留长度 Check the length and provide sufficient allo18、wable length. 7） 电缆施放完后，核对长度及位置无误，并对电缆进行外观检查，多根电缆并列敷设时，应将电缆按规定的距离排好，电缆在电缆沟内不必拉直，应有适当的松弛，以免承受拉力Check the length of position of each cable and the distance between cables shall be properly provided. Cable on trench cant be stiff and shall be loose instead to prevent any stress on it.8） 电缆放于沟底后，上面应覆盖1019、0mm的细土或细砂，然后盖保护砖块并按要求放置警示带，保护砖块应超过电缆外径两侧各50mm Place 100mm fine sand and soil on top of cable and brick and waning tape installed. 9） 直埋电缆在直线段每隔50100m,处、电缆接头处、转弯处、进入建筑物等处，应设置明显的方位标志或标示桩。以便于电缆检修时查找和防止外来机械损伤. Cable stake and marker shall be provided for every 50-100m straight length cable and also be p20、rovided at bend, connection and building entrance, for future cabling inspection and preventing mechanical damage. 10） 电缆放完锯断后，电缆端部要密封，防止进水受潮Cable end on reel shall be sealed and moisture prevented. 11） 直埋电缆回填土前，应经隐蔽工程验收合格。对电缆的埋深、走向、坐标、起止点及埋入方法等作好隐蔽工程记录. Before backfill, any records shall be filled up and signed off. 其中：土方量1800 m3；保护砖块1000；细砂 700m3Earth work: 1800 m3；Brick:1000；Find sand: 700m3附件1、300、500、600区域地下电缆敷设进度计划表Attachment 1: U/G cable pulling schedule for 300、500、600 Area附件2、300、500、600区域地下电缆平面图Attachment 2: U/G Cable Layout DWG for 300、500、600 Area