在中國公路建設過程中,鋼波紋涵管涵洞(dong)(dong)作(zuo)為(wei)(wei)(wei)一種主要(yao)的(de)和常見的(de)構(gou)(gou)造舉(ju)措措施(shi),一般為(wei)(wei)(wei)滿足排水、通道(dao)的(de)要(yao)求,多年(nian)(nian)來一向選用(yong)(yong)鋼筋混(hun)凝土(tu)(tu)(tu)或(huo)圬工構(gou)(gou)造的(de)涵洞(dong)(dong),但(dan)該類涵 洞(dong)(dong)存(cun)在規劃繁瑣、施(shi)工周(zhou)期(qi)長、易(yi)呈現沉(chen)(chen)陷(xian)及跳車等缺(que)點(dian),即使選用(yong)(yong)鋼筋混(hun)凝土(tu)(tu)(tu)管(guan)(guan)涵也存(cun)在管(guan)(guan)節組(zu)合體(ti)及銜接部位強度不(bu)(bu)夠等缺(que)點(dian);此外,在多年(nian)(nian)凍(dong)土(tu)(tu)(tu)、季節性凍(dong)土(tu)(tu)(tu)、脹大土(tu)(tu)(tu)、軟(ruan)土(tu)(tu)(tu)等特別地區,鋼筋混(hun)凝土(tu)(tu)(tu)涵洞(dong)(dong)在使用(yong)(yong)過程中一般將呈現不(bu)(bu)同程度的(de)損壞,更為(wei)(wei)(wei)嚴重(zhong)的(de)是(shi)當地基或(huo)根底不(bu)(bu)平均沉(chen)(chen)降將致(zhi)使涵洞(dong)(dong)的(de)全體(ti)損壞,形成(cheng)路(lu)基大范圍的(de)沉(chen)(chen)陷(xian),給公路(lu)行車帶來極為(wei)(wei)(wei)嚴重(zhong)的(de)安全隱患。

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(wen)管(guan)涵(han)(han)是一種柔性構(gou)造,波(bo)紋(wen)管(guan)在構(gou)造上具(ju)有橫(heng)向(xiang)抵償位(wei)移(yi)的(de)(de)特性,可充分施(shi)展(zhan)鋼材抗拉功(gong)能強(qiang),具(ju)有較(jiao)大的(de)(de)抗變形(xing)和抗沉降才能,施(shi)工(gong)(gong)(gong)過程中(zhong)重量(liang)輕、裝置利便快(kuai)捷、施(shi)工(gong)(gong)(gong)簡便等很(hen)多(duo)長處。該文以某工(gong)(gong)(gong)程實例(li)為研討(tao)目標,對鋼波(bo)紋(wen)管(guan)涵(han)(han)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(jin)行比照研討(tao),發現(xian)該類管(guan)涵(han)(han)具(ju)有別的(de)(de)傳統(tong)涵(han)(han)洞無與(yu)倫比的(de)(de)優勝性,可為鋼波(bo)紋(wen)管(guan)涵(han)(han)在公路建設(she)中(zhong)的(de)(de)推廣應(ying)用提供有益的(de)(de)參閱。

金屬(shu)波(bo)紋(wen)涵(han)管(guan)的(de)(de)波(bo)紋(wen)結(jie)構(gou)可使(shi)涵(han)洞路面受力(li)公道(dao)，荷載(zai)分布平均，并具有一定的(de)(de)抗變(bian)形能力(li)，能解決(jue)北方嚴寒地區（霜凍）對橋梁和涵(han)管(guan)砼結(jie)構(gou)的(de)(de)破壞題目；使(shi)路表(biao)面沒有伸縮縫，進(jin)步(bu)行(xing)(xing)車恬(tian)靜。而(er)且也(ye)有利于(yu)改善軟土地基(ji)結(jie)構(gou)與路堤(di)接壤處的(de)(de)“錯臺”現象，進(jin)步(bu)行(xing)(xing)車安全(quan)性。波(bo)紋(wen)涵(han)管(guan)的(de)(de)工后營運、養護本錢低，工程實際造價也(ye)低于(yu)同類跨徑(jing)的(de)(de)橋梁、涵(han)洞。

鋼波紋涵管的(de)(de)(de)防(fang)(fang)(fang)水(shui)及(ji)排水(shui)施工中(zhong)為防(fang)(fang)(fang)止(zhi)波(bo)(bo)紋(wen)涵(han)(han)管(guan)外發生(sheng)的(de)(de)(de)水(shui)壓(ya)，有必要(yao)設置排水(shui)設備盡量降低水(shui)壓(ya)（按捺發生(sheng)水(shui)壓(ya)會加重波(bo)(bo)紋(wen)涵(han)(han)管(guan)填(tian)土部(bu)位(wei)的(de)(de)(de)載荷(he)，會影響波(bo)(bo)紋(wen)涵(han)(han)管(guan)的(de)(de)(de)變位(wei)）為了防(fang)(fang)(fang)止(zhi)從(cong)鋼(gang)板(ban)連接(jie)部(bu)及(ji)螺栓孔滲水(shui)，在(zai)螺栓連接(jie)部(bu)和鋼(gang)板(ban)重疊部(bu)選擇密封材料(liao)進行表面防(fang)(fang)(fang)水(shui)處理地下通(tong)道在(zai)組裝完畢(bi)后(hou)，回填(tian)之前實施表面防(fang)(fang)(fang)水(shui)防(fang)(fang)(fang)水(shui)處理后(hou)待防(fang)(fang)(fang)水(shui)材料(liao)充分硬(ying)化后(hou)開始(shi)回填(tian)、回填(tian)及(ji)壓(ya)實（1）波(bo)(bo)形(xing)鋼(gang)板(ban)構(gou)(gou)造(zao)物的(de)(de)(de)回填(tian)與壓(ya)實對(dui)構(gou)(gou)造(zao)物的(de)(de)(de)不亂性及(ji)耐久性起著重要(yao)的(de)(de)(de)作用。波(bo)(bo)形(xing)鋼(gang)板(ban)是一種(zhong)彈性結構(gou)(gou)，所以填(tian)土特別重要(yao)。

金(jin)屬波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)涵(han)(han)管(guan)按地中構造物使用(yong)時，土體和波(bo)(bo)(bo)(bo)(bo)形鋼板有合成(cheng)作用(yong)能承受外(wai)部(bu)載荷(he)，因此金(jin)屬波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)涵(han)(han)管(guan)及土體共同承受載荷(he)的作用(yong)。金(jin)屬波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)管(guan)涵(han)(han)也叫波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)管(guan)涵(han)(han)或鋼制(zhi)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)涵(han)(han)管(guan)，是(shi)指(zhi)鋪埋在(zai)公(gong)路(lu)，鐵路(lu)下面的涵(han)(han)洞(dong)用(yong)螺紋(wen)(wen)(wen)波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)管(guan)，它是(shi)由波(bo)(bo)(bo)(bo)(bo)形金(jin)屬板卷制(zhi)成(cheng)或用(yong)半圓(yuan)波(bo)(bo)(bo)(bo)(bo)形鋼片拼制(zhi)成(cheng)的圓(yuan)形波(bo)(bo)(bo)(bo)(bo)紋(wen)(wen)(wen)管(guan)，應用(yong)于公(gong)路(lu)，鐵路(lu)，小橋，通(tong)道，擋土墻(qiang)以及各種(zhong)礦(kuang)場(chang)，巷道擋墻(qiang)支護等工程中的涵(han)(han)洞(dong)（管(guan)）

金屬波(bo)紋涵管(guan)具有(you)施工(gong)工(gong)期短(duan)、造(zao)價低(di)、對(dui)地(di)基擾動小、對(dui)基礎要求低(di)、適應變形機能好等(deng)長(chang)處,特別合用(yong)于邊遠地(di)區(qu)和多年凍土(tu)、軟土(tu)等(deng)特殊地(di)基區(qu)域的(de)(de)道(dao)路(lu)涵洞(dong)工(gong)程.目前,作(zuo)為(wei)一種新型的(de)(de)道(dao)路(lu)涵洞(dong)形式.對(dui)鋼波(bo)紋管(guan)涵洞(dong)進行野外(wai)現(xian)場力(li)(li)(li)學機能測(ce)試存(cun)在很多局限(xian)(xian)性,為(wei)了克服其局限(xian)(xian)性,本文在鋼波(bo)紋管(guan)涵洞(dong)野外(wai)現(xian)場力(li)(li)(li)學機能測(ce)試的(de)(de)基礎上,利用(yong)有(you)限(xian)(xian)元(yuan)力(li)(li)(li)學分析程序對(dui)鋼波(bo)紋管(guan)涵洞(dong)的(de)(de)受力(li)(li)(li)變形作(zuo)計(ji)算(suan)分析,將計(ji)算(suan)結果和野外(wai)現(xian)場實測(ce)值(zhi)進行比較分析,建立公道(dao)的(de)(de)有(you)限(xian)(xian)元(yuan)力(li)(li)(li)學模(mo)型,運用(yong)有(you)限(xian)(xian)元(yuan)法(fa)系統(tong)地(di)分析鋼波(bo)紋管(guan)涵洞(dong)的(de)(de)力(li)(li)(li)學機能成為(wei)可行.