在中國公路建設過程中,鋼波紋涵管涵(han)(han)洞(dong)作為(wei)(wei)一(yi)種主要的(de)和常見的(de)構造舉措措施(shi),一(yi)般為(wei)(wei)滿足排(pai)水、通道的(de)要求,多(duo)年來一(yi)向選用鋼(gang)筋(jin)混凝(ning)土(tu)(tu)或(huo)圬工構造的(de)涵(han)(han)洞(dong),但該類涵(han)(han) 洞(dong)存在規(gui)劃繁瑣、施(shi)工周(zhou)期長、易呈現沉(chen)陷及(ji)跳車等(deng)缺點,即使選用鋼(gang)筋(jin)混凝(ning)土(tu)(tu)管涵(han)(han)也存在管節(jie)組合體(ti)及(ji)銜(xian)接部位強度不(bu)夠等(deng)缺點;此(ci)外,在多(duo)年凍土(tu)(tu)、季節(jie)性(xing)凍土(tu)(tu)、脹大土(tu)(tu)、軟土(tu)(tu)等(deng)特別地區,鋼(gang)筋(jin)混凝(ning)土(tu)(tu)涵(han)(han)洞(dong)在使用過程(cheng)中一(yi)般將呈現不(bu)同程(cheng)度的(de)損壞(huai),更為(wei)(wei)嚴重(zhong)的(de)是當地基或(huo)根底不(bu)平均沉(chen)降將致(zhi)使涵(han)(han)洞(dong)的(de)全體(ti)損壞(huai),形成路基大范圍(wei)的(de)沉(chen)陷,給(gei)公路行車帶來極為(wei)(wei)嚴重(zhong)的(de)安全隱患(huan)。

不同情況的路基應該調整鋼波紋涵管的施工方案

鋼波(bo)紋管(guan)(guan)涵是一種柔性(xing)構造,波(bo)紋管(guan)(guan)在(zai)構造上具有(you)橫向抵償位移的(de)(de)特性(xing),可充分施(shi)展鋼材(cai)抗拉(la)功能強,具有(you)較大(da)的(de)(de)抗變形和抗沉降才能,施(shi)工(gong)(gong)(gong)過程中重(zhong)量輕、裝置利便快捷、施(shi)工(gong)(gong)(gong)簡便等很多長處(chu)。該文以(yi)某(mou)工(gong)(gong)(gong)程實例為研(yan)討(tao)目(mu)標,對鋼波(bo)紋管(guan)(guan)涵的(de)(de)施(shi)工(gong)(gong)(gong)工(gong)(gong)(gong)藝、工(gong)(gong)(gong)程造價等方面進行比照研(yan)討(tao),發現該類(lei)管(guan)(guan)涵具有(you)別(bie)的(de)(de)傳統(tong)涵洞(dong)無與倫(lun)比的(de)(de)優(you)勝性(xing),可為鋼波(bo)紋管(guan)(guan)涵在(zai)公路建設中的(de)(de)推廣應用提供(gong)有(you)益的(de)(de)參閱。

金屬波(bo)紋涵管(guan)的(de)波(bo)紋結構(gou)(gou)可使涵洞路面受力公道，荷載分(fen)布平均，并(bing)具有一定(ding)的(de)抗變形(xing)能(neng)力，能(neng)解決北方嚴寒地區（霜凍）對橋梁和(he)涵管(guan)砼結構(gou)(gou)的(de)破壞題目；使路表面沒(mei)有伸縮縫，進步行車(che)恬靜。而(er)且也有利于(yu)(yu)改善軟土地基結構(gou)(gou)與路堤接壤處的(de)“錯臺”現(xian)象，進步行車(che)安全性。波(bo)紋涵管(guan)的(de)工后營運(yun)、養護本錢低(di)，工程實際造價也低(di)于(yu)(yu)同類跨徑的(de)橋梁、涵洞。

鋼波紋涵管的(de)防(fang)(fang)(fang)水(shui)(shui)(shui)及(ji)(ji)排水(shui)(shui)(shui)施工(gong)中(zhong)為(wei)防(fang)(fang)(fang)止波(bo)(bo)紋(wen)(wen)涵管(guan)(guan)外發生的(de)水(shui)(shui)(shui)壓(ya)(ya)，有必要(yao)(yao)設(she)置(zhi)排水(shui)(shui)(shui)設(she)備盡量降(jiang)低水(shui)(shui)(shui)壓(ya)(ya)（按(an)捺發生水(shui)(shui)(shui)壓(ya)(ya)會加(jia)重(zhong)波(bo)(bo)紋(wen)(wen)涵管(guan)(guan)填(tian)(tian)土部(bu)位(wei)(wei)的(de)載荷，會影響(xiang)波(bo)(bo)紋(wen)(wen)涵管(guan)(guan)的(de)變位(wei)(wei)）為(wei)了防(fang)(fang)(fang)止從(cong)鋼板連接部(bu)及(ji)(ji)螺(luo)栓孔滲水(shui)(shui)(shui)，在(zai)螺(luo)栓連接部(bu)和鋼板重(zhong)疊部(bu)選擇密封材料(liao)進行表面防(fang)(fang)(fang)水(shui)(shui)(shui)處理地(di)下通道在(zai)組裝完畢后，回(hui)填(tian)(tian)之前實(shi)施表面防(fang)(fang)(fang)水(shui)(shui)(shui)防(fang)(fang)(fang)水(shui)(shui)(shui)處理后待防(fang)(fang)(fang)水(shui)(shui)(shui)材料(liao)充分(fen)硬化后開始回(hui)填(tian)(tian)、回(hui)填(tian)(tian)及(ji)(ji)壓(ya)(ya)實(shi)（1）波(bo)(bo)形鋼板構造(zao)(zao)物的(de)回(hui)填(tian)(tian)與(yu)壓(ya)(ya)實(shi)對構造(zao)(zao)物的(de)不亂性(xing)及(ji)(ji)耐久性(xing)起著重(zhong)要(yao)(yao)的(de)作用。波(bo)(bo)形鋼板是一種彈性(xing)結構，所(suo)以填(tian)(tian)土特別重(zhong)要(yao)(yao)。

金(jin)屬(shu)波(bo)(bo)紋(wen)涵(han)(han)(han)管按地中構造物使用(yong)時(shi)，土體(ti)和波(bo)(bo)形(xing)鋼板有合成作用(yong)能(neng)承受(shou)外(wai)部載(zai)荷(he)(he)，因此(ci)金(jin)屬(shu)波(bo)(bo)紋(wen)涵(han)(han)(han)管及(ji)土體(ti)共同承受(shou)載(zai)荷(he)(he)的(de)(de)作用(yong)。金(jin)屬(shu)波(bo)(bo)紋(wen)管涵(han)(han)(han)也叫波(bo)(bo)紋(wen)管涵(han)(han)(han)或鋼制(zhi)波(bo)(bo)紋(wen)涵(han)(han)(han)管，是指鋪埋在公路(lu)，鐵路(lu)下面的(de)(de)涵(han)(han)(han)洞用(yong)螺紋(wen)波(bo)(bo)紋(wen)管，它是由(you)波(bo)(bo)形(xing)金(jin)屬(shu)板卷(juan)制(zhi)成或用(yong)半(ban)圓波(bo)(bo)形(xing)鋼片拼制(zhi)成的(de)(de)圓形(xing)波(bo)(bo)紋(wen)管，應用(yong)于公路(lu)，鐵路(lu)，小(xiao)橋，通道，擋土墻以(yi)及(ji)各種礦場，巷道擋墻支(zhi)護等工程中的(de)(de)涵(han)(han)(han)洞（管）

金屬(shu)波(bo)(bo)紋(wen)(wen)涵(han)(han)(han)管具(ju)有(you)施工(gong)工(gong)期短、造價低、對(dui)地(di)(di)基(ji)擾動小、對(dui)基(ji)礎要求(qiu)低、適應變形(xing)機(ji)(ji)(ji)能(neng)(neng)好等長(chang)處(chu),特(te)(te)別合用于邊遠地(di)(di)區和(he)多(duo)年凍土(tu)、軟土(tu)等特(te)(te)殊地(di)(di)基(ji)區域的(de)(de)道(dao)路涵(han)(han)(han)洞工(gong)程.目前,作(zuo)為(wei)(wei)一種新型(xing)的(de)(de)道(dao)路涵(han)(han)(han)洞形(xing)式.對(dui)鋼(gang)波(bo)(bo)紋(wen)(wen)管涵(han)(han)(han)洞進行(xing)野(ye)外現場力(li)(li)學(xue)機(ji)(ji)(ji)能(neng)(neng)測試(shi)存在(zai)很多(duo)局(ju)限(xian)(xian)性(xing),為(wei)(wei)了克服其局(ju)限(xian)(xian)性(xing),本文(wen)在(zai)鋼(gang)波(bo)(bo)紋(wen)(wen)管涵(han)(han)(han)洞野(ye)外現場力(li)(li)學(xue)機(ji)(ji)(ji)能(neng)(neng)測試(shi)的(de)(de)基(ji)礎上,利(li)用有(you)限(xian)(xian)元力(li)(li)學(xue)分析程序對(dui)鋼(gang)波(bo)(bo)紋(wen)(wen)管涵(han)(han)(han)洞的(de)(de)受力(li)(li)變形(xing)作(zuo)計(ji)算分析,將計(ji)算結果和(he)野(ye)外現場實測值進行(xing)比較(jiao)分析,建立公(gong)道(dao)的(de)(de)有(you)限(xian)(xian)元力(li)(li)學(xue)模型(xing),運用有(you)限(xian)(xian)元法系統地(di)(di)分析鋼(gang)波(bo)(bo)紋(wen)(wen)管涵(han)(han)(han)洞的(de)(de)力(li)(li)學(xue)機(ji)(ji)(ji)能(neng)(neng)成為(wei)(wei)可行(xing).