鋼波紋管兩側(ce)不對稱回填(tian)導致(zhi)(zhi)鴨蛋圓，嚴重的導致(zhi)(zhi)塌垮。楔(xie)形(xing)(xing)部(bu)回填(tian)不密實，導致(zhi)(zhi)管(guan)(guan)體底(di)部(bu)變平。波紋(wen)涵管(guan)(guan)兩側(ce)填(tian)土不密實，導致(zhi)(zhi)變形(xing)(xing)過(guo)大。

這樣做鋼波紋管的防腐工作效果非常好

瀝(li)青(qing)與(yu)煤(mei)油的拌和物(wu)涂(tu)(tu)料(liao)：涂(tu)(tu)料(liao)瀝(li)青(qing)與(yu)煤(mei)油之配(pei)合比(bi)為(wei)54: 46，使(shi)用此涂(tu)(tu)料(liao)時應(ying)涂(tu)(tu)刷(shua)(shua)(shua)2遍，使(shi)涂(tu)(tu)刷(shua)(shua)(shua)層總厚度達到0.4mm—0.5mm，涂(tu)(tu)刷(shua)(shua)(shua)用量0.6kg/m2。有條件時用噴槍噴涂(tu)(tu)，效果更好，涂(tu)(tu)刷(shua)(shua)(shua)在廢水(shui)浸(jin)泡(pao)或常水(shui)位以下部分的鋼波(bo)紋涵管(guan)。

一些個別的(de)小公司(si)不(bu)注重(zhong)回(hui)填部(bu)分(fen)，因此波紋涵管受(shou)到嚴重(zhong)損壞，管身變(bian)形的(de)事情也偶(ou)爾發生，下面(mian)簡單(dan)列舉五種(zhong)情形，希望在施(shi)工過程中加(jia)強管理，引起(qi)高度(du)重(zhong)視：

體楔形(xing)部(bu)及兩側局部(bu)有大石塊，導致局部(bu)波紋涵管有硬(ying)割傷(shang)或凸(tu)起。管體50cm內兩側回填材(cai)料達不到要(yao)求(qiu)，應(ying)填沙性材(cai)料，施(shi)工時卻填筑了黃(huang)土(tu)、膨(peng)脹(zhang)土(tu)等材(cai)料，遇水變軟，無承載能力，導致管體橫向變形(xing)過(guo)大。

鋼波(bo)紋涵(han)管(guan)(guan)(guan)是由鋼板(ban)制成(cheng)波(bo)形(xing)(xing)板(ban)后(hou)卷扎(zha)而(er)成(cheng)或者拼裝而(er)成(cheng)的涵(han)洞(dong)用(yong)管(guan)(guan)(guan)，應用(yong)于公(gong)路(lu)、鐵(tie)路(lu)涵(han)洞(dong)等工(gong)(gong)程，也可(ke)以(yi)半圓(yuan)或其他(ta)曲線方式(shi)做成(cheng)跨線通(tong)(tong)道(dao)、隧道(dao)和巷(xiang)道(dao)頂護(hu)。鋼波(bo)紋涵(han)管(guan)(guan)(guan)沿管(guan)(guan)(guan)長方向呈波(bo)形(xing)(xing)，有非常(chang)強(qiang)的適應縱(zong)向變形(xing)(xing)能(neng)力，能(neng)避(bi)免因地基(ji)不均勻沉降從而(er)造成(cheng)破壞，在(zai)不增(zeng)加材料用(yong)量(liang)的情(qing)況下(xia)，可(ke)以(yi)將管(guan)(guan)(guan)的徑向承(cheng)載能(neng)力提高數倍，由于其優越的性能(neng)和適應能(neng)力被國外用(yong)于公(gong)路(lu)工(gong)(gong)程、鐵(tie)路(lu)工(gong)(gong)程、礦山(shan)巷(xiang)道(dao)、隧道(dao)工(gong)(gong)程、市政工(gong)(gong)程和軍事(shi)通(tong)(tong)道(dao)。國內使用(yong)推廣波(bo)紋涵(han)管(guan)(guan)(guan)技術，是2000年(nian)以(yi)后(hou)由上海(hai)市公(gong)路(lu)管(guan)(guan)(guan)理處、上海(hai)市政設計研究院、同(tong)(tong)濟大學、衡水益通(tong)(tong)公(gong)司等單位共同(tong)(tong)推動，2001-2006年(nian)在(zai)新疆、西藏、河北、山(shan)西、內蒙等省份多條高等級公(gong)路(lu)上應用(yong)，用(yong)戶普遍(bian)反映(ying)良(liang)好。 

鋼波紋管力(li)(li)學(xue)原理(li) 鋼波(bo)(bo)紋(wen)(wen)(wen)管(guan)(guan)(guan)周圍土體在荷載(zai)作用下(xia)形(xing)成(cheng)支(zhi)(zhi)撐(cheng)，土體與波(bo)(bo)紋(wen)(wen)(wen)管(guan)(guan)(guan)形(xing)成(cheng)一種組(zu)合結構(gou)，使(shi)波(bo)(bo)紋(wen)(wen)(wen)管(guan)(guan)(guan)能(neng)(neng)夠承受(shou)很大的(de)承載(zai)能(neng)(neng)力(li)(li)。鋼波(bo)(bo)紋(wen)(wen)(wen)管(guan)(guan)(guan)沿直徑方向(xiang)為圓形(xing)或(huo)拱(gong)(gong)(gong)形(xing)，而縱(zong)(zong)向(xiang)又是若干(gan)個(ge)小波(bo)(bo)紋(wen)(wen)(wen)拱(gong)(gong)(gong)，縱(zong)(zong)橫組(zu)成(cheng)雙曲拱(gong)(gong)(gong)，與我國雙曲拱(gong)(gong)(gong)橋的(de)性質(zhi)類似，由力(li)(li)學(xue)可(ke)知(zhi)，拱(gong)(gong)(gong)式在豎向(xiang)荷載(zai)作用下(xia)，支(zhi)(zhi)撐(cheng)處不僅產生(sheng)豎向(xiang)反力(li)(li)，而且產生(sheng)水平(ping)推(tui)力(li)(li)，由于(yu)水平(ping)推(tui)力(li)(li)的(de)存在，拱(gong)(gong)(gong)的(de)彎距將比(bi)相同跨徑的(de)梁或(huo)橋的(de)彎距小很多，而使(shi)整(zheng)個(ge)拱(gong)(gong)(gong)主要承受(shou)壓力(li)(li)，波(bo)(bo)紋(wen)(wen)(wen)管(guan)(guan)(guan)涵(han)四(si)周有(you)若干(gan)個(ge)支(zhi)(zhi)撐(cheng)點，形(xing)成(cheng)穩定的(de)承載(zai)能(neng)(neng)力(li)(li)。

鋼波紋涵管(guan)應該(gai)涂(tu)(tu)涮兩(liang)遍瀝青(qing)和(he)石油的拌(ban)和(he)物(wu)，以加強防腐蝕作用。從外觀看管(guan)壁(bi)內外均勻的涂(tu)(tu)成(cheng)了黑管(guan)即(ji)可，但(dan)是(shi)必(bi)須要(yao)等到瀝青(qing)晾干(gan)后方(fang)可安裝。瀝青(qing)涂(tu)(tu)層的厚(hou)度保持在0.4—0.5mm內。

涂(tu)(tu)(tu)涮(shuan)方法(fa)如下(xia)(xia): 含(han)有石棉纖維的厚瀝青(qing)涂(tu)(tu)(tu)料：涂(tu)(tu)(tu)料的溶(rong)劑(ji)是高質量的瀝青(qing)，石棉粉的含(han)量≥30%。噴(pen)涂(tu)(tu)(tu)方法(fa)可用氣壓噴(pen)涂(tu)(tu)(tu)，或(huo)毛刷(shua)涂(tu)(tu)(tu)刷(shua)，每次噴(pen)涂(tu)(tu)(tu)層厚7mm—8mm，噴(pen)涂(tu)(tu)(tu)用量為lkg/m2左右(you)。被(bei)噴(pen)涂(tu)(tu)(tu)物表面(mian)應(ying)特別干爽，無油污。涂(tu)(tu)(tu)刷(shua)在廢(fei)水浸泡或(huo)常水位以(yi)下(xia)(xia)部(bu)分(fen)的鋼波紋(wen)涵(han)管。