站内电缆沟开挖安全技术交底ContentofDisclosure：交底内容：TechnicalDisclosure：1、挖沟时施工人员之间应保持3~5m的距离。在有地下光、电缆和管路的地方挖沟、坑时，应了解地下设施的用途、埋设位置，并与有关部门联系，做好防护后再施工。Itisnecessarytokeepadistanceof3to5metersfromtheplacewhereexcavationisperformed.Whentrenchintheplaceswherethereareundergroundopticalcables,electricalcablesandpipes,itisnecessarytounderstandthepurposeandlocationoftheundergroundfacilities,contactwiththerelevantdepartments,andcarryoutgoodprotectionbeforeconstruction.2、当挖沟、坑影响行人妨碍交通或站内作业时，应在施工地点3~5m处加设防护，并应当天回填夯实。如需过夜时，需搭人行便桥、通车便道，并设防护栏和警示灯，必要时应派专人监守。在有倒塌危险的房屋、围墙附近开挖时应对其临时加固。Whentrenchaffectstrafficorstationoperations,setupprotectionfacilities3-5metersfromtheconstructionsiteandbackfillandcompactthetrenchthesameday.Incaseofovernight,itisneedtotaketemporarydeckingacrossopentrench,setfencesandwarninglights,andsendsomeonetotakecareofitwhennecessary.Whentrenchinthevicinityofhousesandfencesareatriskofcollapsing,itisnecessarytoreinforcethemtemporarily.3、严禁在影响路基稳定的范围内挖沟、坑，在铁路沿线或穿越铁路挖沟、坑时，摆放的料具和挖出的土石严禁侵入基本建筑限界，并应采取防止塌落的措施。Itisprohibitedtotrenchwithintheareawhichwouldimpactstabilityofroadbed.Whentrenchalongtherailwayorcrossingtherailway,relatedmaterials,tools,excavatedearthandrockarenotallowedtoputintotheconstructionboundaryandmeasuresshouldbetakentopreventcollapse.4、电缆、光缆敷设需通过铁路、公路、繁忙车道时开挖时间尽量选择在车辆最低峰进行，并应采取安全防护措施。Ifopticalandelectricalcablehavetoacrosstherail,road,andbusylane,trytoavoidrushhoursandshouldtakesafetymeasures.5、挖沟、坑的弃土应距沟、坑边0.4m以外。堆土高度不应高于1.5m。Trenchspoilpitshouldbeplacedawayfromthetrenchbyatleast0.4meterwithaheightoflessthan1.5m.6、在土质松软地带挖沟、坑时应按斜坡形开挖，坡度的大小应根据土壤的性质、湿度及坑深确定，宜符合下表的规定：Whentrenchinsoftsoilarea,excavateaslopewithitsanglebasedonthenature,moistureofthesoilandpitdepth.Theslopeshouldmeetthefollowingrequirements:沟、坑的坡度表Tableofslopeoftrenchandpit土壤性质Typeofsoil坡度Slope砂土、淤泥Sandysoil,silt1：0.75砂质黏土Sandyclay1：0.5黏土及黄土ClayandLoess1：0.3坚土Pansoil1：0.157、挖水沟、坑及流沙沟、坑时应采用防护板或沉箱等加固措施。Diggingditches,pitsandsandyditch,pit,reinforcementmeasureslikeprotectionshieldorcaissonshouldbetaken.8、防护板的安装或撤除应有人监护。严禁将防护板一次全部撤除。强流沙地带不宜撤防护板。Installationorremovalofprotectionshieldshouldbeguarded.Itisprohibitedtoremovealloftheprotectiveshieldsatonetime.Itisnotgoodtoremoveprotectiveshieldinheavyquicksandareas.9、在架空线路附近开挖沟槽时，应防止架空线路的杆塔倾斜、悬倒。Whenperformtrenchexcavationinthevicinityofoverheadlines,payattentiontopreventslantandhangingdownofpoleandtowerforoverheadlines.10、坑底面积小于1.5m2时，坑内不得有两人及以上人员同时作业。沟、坑深大于1m时，不得一人单独作业。Ifbottomareaislessthan1.5m2,onlyonepersoncanworkinit.Whenthedepthoftrenchandpitdepthismorethan1meter,apersoncannotworkalone.11、当发生挖坏光、电缆及其它管路事故后，施工负责人应立即通知项目负责人，并同时与设备管理单位联系，确定接续、抢修办法。Ifbreakoptical,electricalcableandotherpipelinewhentrench,thepersoninchargeofconstructionshallimmediatelyn...
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