當鋼波紋管涵(han)(han)處于(yu)軟(ruan)(ruan)土地(di)(di)基(ji)上時，需對軟(ruan)(ruan)土路基(ji)進(jin)行處理，然(ran)后，在其(qi)上填(tian)一層大于(yu)20cm厚的砂(sha)礫墊層，并夯實(shi)嚴(yan)密(mi)。承載才(cai)干不太(tai)高(gao)的普通地(di)(di)基(ji)，需設厚度(du)的基(ji)礎。但是，若將涵(han)(han)管底(di)基(ji)槽原狀土經(jing)嚴(yan)厲夯實(shi)（其(qi)夯實(shi)度(du)到(dao)重型擊(ji)實(shi)密(mi)實(shi)度(du)的90%以上）往后，也可(ke)直接將鋼制波紋管涵(han)(han)置于(yu)地(di)(di)基(ji)上。

When the steel corrugated pipe culvert is on the soft soil foundation, the soft soil subgrade shall be treated, and then a layer of gravel cushion with thickness of 20cm shall be filled on it and compacted tightly. For ordinary foundation with low bearing ability, it is necessary to set a foundation with thickness. However, if the undisturbed soil of culvert bottom foundation trench is severely compacted (its compaction degree is more than 90% of heavy compaction density), steel corrugated pipe culvert can also be directly placed on the foundation.

鋼波紋管

雙壁波(bo)紋管(guan)(guan)的水平鋪裝(zhuang)，銜接(jie)管(guan)(guan)道滑管(guan)(guan)和排氣閥門，排氣閥門比室外高20-50公(gong)分。結構簡(jian)單，修建施工方便快(kuai)捷。鋼(gang)波(bo)紋管(guan)(guan)涵不能(neng)直接(jie)置于巖(yan)石(shi)或混凝土基床上，因過于剛性的支承，不光(guang)會(hui)下降(jiang)管(guan)(guan)壁本身所具有的柔性，并(bing)且還會(hui)減小涵管(guan)(guan)的承載(zai)才干(gan)。

所以對巖石地基應挖掉一部分軟巖，換填一層土，并仔細夯實。出產制作特點好，安裝允許有轉角。按雙壁波紋管規范基(ji)坑矩形(xing)坑，墊層選用50mm混凝(ning)土。鋼(gang)波紋管等工藝也在(zai)不斷地前進與開(kai)展，逐漸開(kai)展出直口(kou)、剛度流水(shui)線、承(cheng)插孔(kong)和軟性流水(shui)線的這幾(ji)種(zhong)接口(kou)行事。

鋼波紋管

因(yin)為直口管和剛度流水線管工(gong)程(cheng)(cheng)施(shi)工(gong)效(xiao)率低，抗震(zhen)等(deng)級特(te)性(xing)差，路基(ji)移(yi)動會使插口翻(fan)開，形成(cheng)地上陷落(luo)危害。因(yin)而這(zhe)二種插口在工(gong)程(cheng)(cheng)項(xiang)目中(zhong)已基(ji)礎不選用。電纜載流量(liang)高，鋪裝指數值高過PVC管材10個(ge)百(bai)分數。

雙壁波紋管的安裝應與左右垂直面，外側高，視點低(視點5o)，以確保洗后沒有水。管道后端工程師與墻正中間的距離應在20-25厘米正中間。寒冷地區應在管道外蓋上補水保濕層，先用細砂夯實，再用2cm抹灰砂漿整平。分析化學特點安穩、不焦化、其抗拉強度隨時問提高而有所增加。//hanihanbj.com/