某高速公路跨线桥施工安全技术措施及交通组织方案_secret[1]

《某高速公路跨线桥施工安全技术措施及交通组织方案_secret[1]》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、红南二级公路乌湾桥梁施工安全技术措施及组织方案红南二级级公路乌湾桥梁，在红南二级公路K32+230处，为确保施工期间安全，根据《公路工程施工安全技术规程(JTJ076—95)》和《道路交通标志和标线(GB5768—1998)》规程和《道路作业交通安全标志(GA182-1998)》等有关的规定，结合施工现场实际情况，制定本方案。一、施工现场设计红南二级公路乌湾桥起讫桩号为红南二级公路K32+230～K32+330，左幅桥长142.24m、右幅桥长138.12m，上部结构：36+60+36m预应力混凝土连续箱梁，以中单孔跨越深汕高速公路。下

2、部结构为柱式桥墩，肋式桥台，钻孔灌注桩基础；桥下设计净空8.5m。设计荷载：汽—超20，挂—120，设计行车速度80km/h。1、桥梁桩基采用人工挖孔作业。2、临时建筑物。施工现场设工地值班室、料库、钢筋加工场。4、施工用电、用水。施工用电从乌湾至团脑线侧高压杆处搭接，安装250KVA变压器，使用电缆敷设进入。施工用水接用自来水，不再建临时蓄水设施。5andmasonryonthecorneroffice,inprinciple.Staggered,two-storeybrickverticalseamson25mm.Halfabric

3、kusedseparately.(3)infrontofthewall,firstinstallcounting,countingpolesmarkthebrickthicknessofmortarjointthickness,doorandwindowelements,suchasdeepposition,countingpolesstandonthecorner.Statelevelwhencopyingflat,floorelevationsinleatherbardesignelevationposition.(4)whenbr

4、icksfirstalignment,masonrybricksaccordingtoguidelines.Apartfromhalfabrickwall,anddouble,tobettercontrolthewallflatness.(5)whenbuilt,the"31"masonrymethod,thatis,"anashshovel,brick,kneadandknead"methodofoperation.Verticalrollmethodisused.Verticalseamsofthemortarasfullaspos

5、sible,ventilationarenotallowed.Brickwallsofhorizontalmortarjointthicknessandverticalmortarjointwidthcontrolinthe8~12mmrange.Horizontalmortarjointmortarfullsizemustbegreaterthan80%.(6)fromcornerorpositioningatbegan,bothinsideandoutsidewallwhilemasonry,aspectwallstaggeredt

6、akereceived;outsidewallcorneratisstrictlyprohibitedleftstraightrub,shouldbefromtwoaaspectswhilemasonry;wallbodytemporarycontinuousatshouldmasonryintoobliqueCha,obliqueChalengthnotshouldislessthanheightof2/3(Generalbyastepscaffoldingheightcontrol);asleftobliqueChahasdiffi

7、cult,exceptwallcorneratandtheseismicfortificationarea,wallbodytemporarycontinuousatnotshouldleftstraightChaoutside,canfromwallsurfaceout200mmmasonryintoyinandYangCha,andalongwallhigheachthreeskinblock(600mm),Atiebarorsteelmesh.Chasiteshouldbedeferredtothejambs.(7)thebric

8、kwallsandcolumnsper50cmsettingφ6thruwallshouldertiebar,halfbrickwallsmustbesetone,andatleastnotlessthan