资料内容仅供您学习参考，如有不当或者侵权，请联系改正或者删除。Contents目录Projectoverview工程概况.........................................................1-3Fabricationreference编制依据.........................................................3-3三、Constructionprinciple施工准备.........................................................3-3四、Undergroundengineeringconstructionprocess地下工程施工流程..............................................4-9五、Undergroundengineeringconstructionprocessandconstructionmethods地下工程施工工艺及施工方法...........................................9-13六、Safetyattentions安全注意事项....................................................16-16一、ProjectOverview工程概况ThisprojectisLindeHuayi(Chongqing)GasesCo.,Ltd1BillionNm3/yearSyngasCO/H2project,locatedinChongqing(Changshou)ChemicalIndustryPark,andthemainworkcontainssubstation、office、partsstock、compressionunit、powerabsorptionunit、washingunit、rawmaterialgascompressorunit、hightemperatureshiftunitetc..本项目为林德化医(重庆)气体有限公司10亿Nm3/年合成气制备CO/H2项目,位于重庆(长寿)化工园区内,其中主体工作包括变电所、办公楼、备件仓库、压缩单元、变电吸附单元、洗涤单元、原料气压缩单元、高温变换单元等。Theundergroundengineeringprojectsinclude:undergroundpipelinecomprisesacirculatingwatersystem,watersystem,watersupplyanddrainagesystem,thetotalextensionofabout1950mpipeline.本项目地下工程包括:地下管道包括循环水系统、工业水系统、给排水系统,各管道共计延长米约1950m。Firefightingpipe:integrationoftheprojectintheprojectareaissetDN500ringfirefightingpipe,andisarrangedalongSS150/80-1.6groundoutdoorfirehydrantandaswitchingvalve.Thisprojectfromtheintegrationofannularfiretubeonlineleadsto4DN300firetube,alongtheborderarearoadpulling,andintheareaoffireringpipeisarrangedalong5SS150/80-1.6typeoutdoorgroundhydrantsandaswitchingvalve.消防管网:一体化项目在本项目界区外已设置DN500环状消防管网,并沿线设置SS150/80-1.6型地上式室外消火栓及切换阀门。本项目从一体化环状消防管网上引出4根DN300消防管,沿界区道路边敷设,并在界区内消防环管沿线设置5只SS150/80-1.6型室外地上式消火栓及切换阀门。Rainwaterdrainagepipenetwork:diameteroflessthan600ismadeofpolyethylene(PE)spiralcorrugatedtube,heatshrinkablebeltconnection.DN>600usesreinforcedconcretepipes,cementmortarsocketconnection.雨水排水管网:直径小于600采用聚乙烯(PE)螺旋波纹管,热收缩带连接。DN