鋼波紋管有(you)(you)利于(yu)改(gai)(gai)進(jin)軟土地(di)基結構物與(yu)路堤交界(jie)處的(de)(de)“錯臺”現(xian)象(xiang),不只(zhi)可以減少工(gong)后營運(yun)、維(wei)護本錢(qian),還能(neng)夠有(you)(you)效(xiao)進(jin)步行車(che)的(de)(de)舒服度(du)與(yu)安全性。鋼波紋管具有(you)(you)的(de)(de)路用性能(neng),不只(zhi)對(dui)地(di)基要求(qiu)低,能(neng)有(you)(you)效(xiao)縮(suo)短工(gong)期,還具有(you)(you)施工(gong)簡單(dan)、能(neng)快速裝置的(de)(de)特色,比(bi)一般(ban)涵管具有(you)(you)更多的(de)(de)優勢,在公(gong)路新改(gai)(gai)建工(gong)程(cheng)、路基維(wei)護工(gong)程(cheng)中(zhong)將發揮(hui)的(de)(de)效(xiao)果。
鶴崗鋼波紋管涵施工方法及洞口做法有哪些?
波峰和波谷在管(guan)頂、管(guan)底、管(guan)側均為應力集中處,各管(guan)徑(jing)大等效(xiao)應力的(de)方位與荷載關系近有關。鋼波紋管(guan)洞大應變剖析(xi)(xi)與小應變剖析(xi)(xi)的(de)結果非常接近,擬(ni)訂(ding)的(de)邊界條件與反開(kai)槽回填法開(kai)工(gong)(gong)工(gong)(gong)藝接合較(jiao)好,密度滿意要求。
在某(mou)些區(qu)域砂礫材(cai)料少或(huo)砂礫級配較差時,也可(ke)換填(tian)(tian)(tian)碎石(shi)、礫石(shi)或(huo)河(山)砂及(ji)碎石(shi)土,但(dan)要(yao)(yao)(yao)滿意壓實要(yao)(yao)(yao)求(qiu)(qiu)、填(tian)(tian)(tian)料小(xiao)強(qiang)度要(yao)(yao)(yao)求(qiu)(qiu)、更大粒(li)徑要(yao)(yao)(yao)求(qiu)(qiu)和抗凍要(yao)(yao)(yao)求(qiu)(qiu)。在冰(bing)冷(leng)區(qu)域,兩邊及(ji)頂(ding)部(bu)必定(ding)范圍內(如0.5-2m)回(hui)填(tian)(tian)(tian)材(cai)料要(yao)(yao)(yao)求(qiu)(qiu)同根底材(cai)料要(yao)(yao)(yao)求(qiu)(qiu),頂(ding)部(bu)必定(ding)范圍以(yi)外可(ke)選用(yong)路基(ji)填(tian)(tian)(tian)筑材(cai)料。非冰(bing)冷(leng)區(qu)域,兩邊及(ji)頂(ding)部(bu)回(hui)填(tian)(tian)(tian)材(cai)料可(ke)選用(yong)路基(ji)填(tian)(tian)(tian)筑材(cai)料。
鶴崗鋼波紋管涵施工方法及洞口做法有哪些?
強度高,軸向柔性好,同時具有(you)剛(gang)性和(he)柔性。鋼波(bo)紋管強度為(wei)水泥管的(de)(de)1.5~3倍。《公路涵洞規劃細則(ze)》指出,鋼波(bo)紋管適用于(yu)地基承載力較低(di)或有(you)較大沉降與變形的(de)(de)路基。有(you)利于(yu)改(gai)進軟(ruan)土地基結(jie)構物與路堤交界處的(de)(de)錯(cuo)臺現象,進步行車安全性與舒服性。
施工(gong)(gong)(gong)快捷,工(gong)(gong)(gong)期短。鋼波紋管(guan)選用(yong)(yong)工(gong)(gong)(gong)廠標準規模化出(chu)產(chan),質量安穩、可靠。管(guan)壁薄、重量輕,便(bian)于運送(song)、存放。現場裝置便(bian)利,不需運用(yong)(yong)大型設備。工(gong)(gong)(gong)期短,不受時(shi)節(jie)及地(di)質情況影響(xiang),便(bian)利快捷。舊涵內襯鋼波紋管(guan)進行維修加固,不影響(xiang)路面交通。
根(gen)(gen)底(di)材(cai)料和埋置深度(du):因為鋼波紋(wen)管(guan)洞為金屬結構,其(qi)習慣變形才能較強(qiang),但其(qi)對根(gen)(gen)底(di)材(cai)料要(yao)求相對不(bu)高,一般不(bu)需要(yao)選(xuan)用混凝(ning)土(tu)根(gen)(gen)底(di),采取砂礫(li)換(huan)填即可(ke)。在軟土(tu)區域、多年凍土(tu)區等處選(xuan)用混凝(ning)去根(gen)(gen)底(di)鋼波紋(wen)管(guan)洞的(de)服(fu)務性能不(bu)必定比(bi)砂礫(li)根(gen)(gen)底(di)的(de)強(qiang)。http://hanihanbj.com/
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