鋼波(bo)紋涵管涵(han)洞施工工藝流程(cheng)可分為(wei)路堤法和反開(kai)槽(cao)回填法，下(xia)面主要介紹后者，因其在施工過(guo)程(cheng)中不影響路基施工整體的進度 在山區修建高(gao)速公路，為(wei)達到(dao)終(zhong)的設計要求，深挖高(gao)墳這種情況(kuang)經常能遇到(dao)，因此(ci)產生的髙墳方路堤下(xia)的涵(han)洞工程(cheng)越(yue)來(lai)越(yue)多。
鍍(du)鋅波紋管涵
進岀口(kou)(kou)可采(cai)用由(you)制造的(de)金(jin)屬波(bo)紋管(guan)節(jie)，有(you)直(zhi)管(guan)和與路(lu)基邊坡同(tong)坡率的(de)斜口(kou)(kou)兩(liang)種(zhong)形(xing)式；也(ye)可根據所在(zai)地區的(de)具體情況采(cai)用漿砌(qi)片(pian)石或干砌(qi)片(pian)石砌(qi)筑。一(yi)般在(zai)寒(han)冷(leng)地區，采(cai)用金(jin)屬波(bo)紋管(guan)節(jie)或干砌(qi)片(pian)石。 金(jin)屬波(bo)紋涵管(guan)應用于公(gong)路(lu)養護工程時。
待(dai)涵(han)身及洞(dong)口主體部件運至施工(gong)(gong)(gong)(gong)現場后(hou)(hou)，施工(gong)(gong)(gong)(gong)單位才(cai)能開始(shi)拆除舊涵(han)洞(dong)的(de)(de)工(gong)(gong)(gong)(gong)作，在拆除舊涵(han)洞(dong)的(de)(de)同時(shi)，抓緊基(ji)礎材料的(de)(de)備(bei)(bei)料工(gong)(gong)(gong)(gong)作，備(bei)(bei)料完成(cheng)，并經(jing)檢驗合(he)格(ge)后(hou)(hou)方可進行基(ji)坑的(de)(de)開挖(wa)工(gong)(gong)(gong)(gong)作。金屬波紋涵(han)管應(ying)用于新建公路(lu)工(gong)(gong)(gong)(gong)程時(shi)，在定(ding)購金屬波紋涵(han)管的(de)(de)同時(shi)可抓緊基(ji)礎材料的(de)(de)備(bei)(bei)料和基(ji)坑的(de)(de)開挖(wa)工(gong)(gong)(gong)(gong)作。（hanihanbj.com）
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