h就地冷再生基层施工工法(91-2003word版本)

environmentnegativetubewiringshouldbeusedinlow-voltagetransmissionfluidusedweldinggalvanizedsteelpipe.Electricalequipment,steelpipeandsteelpipe,steelpipeandsteelpipeandsteelpipeconnectionbetweenthethreadedconnectionsshouldbeusedintheannex,shallnotadopttelescopic,pipediameterfor25mmandbelowshouldnotbelessthan5buttons,exposedscrewshouldnotbetoolong.4.1.12transformerinstallation4.1.12.1check4.1.12.1.1beforeinstallationcheck:transformerinstallationconstructionbasesbeforesizeandbasemountingdimensionsoftransformercheckbasewaterlevelshouldbeformed,withembeddedironshouldbecomplete,installthesuppliedcalibrationTabletcoresandelevation,thedesigndrawingsrequirements.4.1.12.1.2transformersarrivedatthescenerightoutoftheboxtocheckinventoryofaccessoriesandsparepartsarecomplete,whilerecognizingthetransformernameplateonmodels,specifications,attachments,sparepartsforcompliancewithdesigndrawingsandtechnicaldocuments.Checkreviewsshouldselectasunnywindlessweatherandsurroundingscleanandthegroundsaredust-proofandrainmeasures.4.1.12.2checkerand4.1.12.2.1oil:beforetheliftingofironcoreintransformerwindingsshouldbefirstreleasedpartoftransformeroilinthetank,thetopcoversealrubbergasketstopreventtransformeroilspillswhenyouremovefueltankcapboltsandinsodoingtopreventoilspillsorspillstotheground.4.1.12.2.2hangingcore:operatorsshouldtakecaretoavoidobjectsfallingintothetank,andprotectivemeasures.Intheinstallationprocesstoensurethatcorewindingsmoothhangingoutofthetankshallnotcollidewithtank,againstdamagetotheinsulation,afterwindingupthefueltankoftheironcore,thenoverallonaclean高速公路泡沫沥青就地冷再生基层施工工法湖南望新建设集团股份有限公司汤彦武刘月升李九苏戴聆春[关键词]泡沫沥青；就地再生；节约资源；再生机械封闭自动控制添加系统1前言目前，沥青路面再生有4种常用方法：现场冷再生技术、现场热再生技术、厂拌热再生技术和厂拌冷再生技术。泡沫沥青就地冷再生技术属于用泡沫沥青作为主要结合料的就地冷再生技术，由于其不需加热、经济性好、减轻环境污染、施工方便等诸多优点，自20世纪80年代后期在路面冷铣刨工艺的基础上迅速发展起来。国内推动的路面再生工法以热再生为主，但从生态环境保护、经济性等角度而言，沥青路面再生工法是“冷拌胜过热拌，就地优于厂拌”。冷再生技术常使用的稳定剂有水泥、乳化沥青和泡沫沥青等。水泥作为稳定剂，在掺量较高时，很容易产生收缩裂缝，而且需要进行较长时间的养生才能开放交通。乳化沥青和泡沫沥青作为稳定剂不会带来水泥稳定类材料容易引起的收缩裂缝问题，有一定的优越性。而泡沫沥青和乳化沥青相比，泡沫沥青只需要消耗普通石油沥青和少量的水就可以制备，不需要添加乳化剂，有一定的成本优势，因此受到越来越多的重视。尽管公路沥青路面再生技术规范已经于2008年7月1日实施，但是作为沥青路面再生技术中的“新成员”，泡沫沥青就地冷再生基environmentnegativetubewiringshouldbeusedinlow-voltagetransmissionfluidusedweldinggalvanizedsteelpipe.Electricalequipment,steelpipeandsteelpipe,steelpipeandsteelpipeandsteelpipeconnectionbetweenthethreadedconnectionsshouldbeusedintheannex,shallnotadopttelescopic,pipediameterfor25mmandbelowshouldnotbelessthan5buttons,exposedscrewshouldnotbetoolong.4.1.12transformerinstallation4.1.12.1check4.1.12.1.1beforeinstallationcheck:transformerinstallationconstructionbasesbeforesizeandbasemountingdimensionsoftransformercheckbasewaterlevelshouldbeformed,withembeddedironshouldbecomplete,installthesuppliedcalibrationTabletcoresandelevation,thedesigndrawingsrequirements.4.1.12.1.2transformersarrivedatthescenerightoutoftheboxtocheckinventoryofaccessoriesandsparepartsarecomplete,whilerecognizingthetransformernameplateonmodels,specifications,attachments,sparepartsforcompliancewithdesigndrawingsandtechnicaldocuments.Checkreviewsshouldselectasunnywindlessweatherandsurroundingscleanandthegroundsaredust-proofandrainmeasures.4.1.12.2checkerand4.1.12.2.1oil:beforetheliftingofironcoreintransformerwindingsshouldbefirstreleasedpartoftransformeroilinthetank,thetopcoversealrubbergasketstopreventtransformeroilspillswhenyouremovefueltankcapboltsandinsodoingtopreventoilspillsorspillstotheground.4.1.12.2.2hangingcore:operatorsshouldtakecaretoavoidobjectsfallingintothetank,andprotectivemeasures.Intheinstallationprocesstoensurethatcorewindingsmoothhangingoutofthetankshallnotcollidewithtank,againstdamagetotheinsulation,afterwindingupthefueltankoftheironcore,thenoverallonaclean2层施工工法的建立和实施有其突出的意义。2工法特点2.1旧路面废料能100%回收再生，既利于环保，又节约大量投资。2.2泡沫沥青混合料存贮时间长，不需加热，碾压成型迅速。全部工序采用机械化施工，铣刨、破碎、添加、拌和及摊铺可一次完成,施工工序简化、工期短。2.3运用新技术浇铺的路面强度、抗疲劳度、抗水性更胜一筹，使用寿命更长。2.4路面标高可以不抬高或抬高较少，可以有效解决大中修工程中一味往上加高尤其是穿镇路段不被老百姓所接受的尴尬局面，从而减少挡墙、边沟、绿化带等附属设施的加高费用。2.5再生机械所具有的封闭式自动控制添加系统,不仅配比精确,而且防止了粉尘的飞扬,从根本上满足环境保护的要求。因此,它是一项绿色的(公路维修改造)工法。3适用范围本施工工法目前可适用于沥青混合料经再生后，用于进行大修、改建的各种等级公路的底基层和二级及二级以下公路、城市出口路基层的施工。4工艺原理泡沫沥青就地冷再生基层的工法原理主要是对旧沥青路面（包括沥青面层和部分基层）进行铣刨，根据得到的回收路面材料（RAP和湖南望新建设集团股份有限公司省级工法会审资料environmentnegativetubewiringshouldbeusedinlow-voltagetransmissionfluidusedweldinggalvanizedsteelpipe.Electricalequipment,steelpipeandsteelpipe,steelpipeandsteelpipeandsteelpipeconnectionbetweenthethreadedconnectionsshouldbeusedintheannex,shallnotadopttelescopic,pipediameterfor25mmandbelowshouldnotbelessthan5buttons,exposedscrewshouldnotbetoolong.4.1.12transformerinstallation4.1.12.1check4.1.12.1.1beforeinstallationcheck:transformerinstallationconstructionbasesbeforesizeandbasemountingdimensionsoftransformercheckbasewaterlevelshouldbeformed,withembeddedironshouldbecomplete,installthesuppliedcalibrationTabletcoresandelevation,thedesigndrawingsrequirements.4.1.12.1.2transformersarrivedatthescenerightoutoftheboxtocheckinventoryofaccessoriesandsparepartsarecomplete,whilerecognizingthetransformernameplateonmodels,specifications,attachments,sparepartsforco