為保證鋼波紋管的(de)距離和(he)順直,可(ke)用鋼(gang)筋支(zhi)架對波紋管(guan)進行點(dian)焊(han)固定(ding),防止澆(jiao)筑砼時左右位移。管(guan)道鋪(pu)設后,出于其(qi)它(ta)原因造成管(guan)壁呈(cheng)現局部(bu)損壞,當損壞程(cheng)度比(bi)較小(xiao)時,可(ke)經過焊(han)槍(qiang)修補處(chu)理,如環(huan)向、縱向裂縫小(xiao)于管(guan)周長的(de)112或孔(kong)徑60mm的(de)情況。
當(dang)損(sun)壞程(cheng)度(du)大于這些數(shu)據時(shi),宜經過換波紋管或(huo)基建筑(zhu)檢查井、連接井等修補方法處理(li)。雨(yu)期時(shi)節應留意(yi)防止(zhi)管材(cai)漂浮、位移(yi)等現(xian)象,當(dang)管道裝置完畢沒有覆(fu)土遇到水泡情況時(shi),應復(fu)測管底(di)與管中心高程(cheng),并(bing)做(zuo)好返工處理(li)辦法。
鋼(gang)波(bo)紋(wen)管(guan)(guan)安置和線盒(he)及預(yu)留洞處相協調,管(guan)(guan)線盒(he)盡可能安置在管(guan)(guan)間(jian)肋的(de)(de)位置。波(bo)紋(wen)管(guan)(guan)運工(gong)作面后,鋪放前應(ying)檢查(cha)管(guan)(guan)材的(de)(de)外形(xing)(xing)及管(guan)(guan)端的(de)(de)堵(du)頭封(feng)堵(du)是否嚴密(mi),對變形(xing)(xing)或裂口處進(jin)行修補。并對波(bo)紋(wen)管(guan)(guan)的(de)(de)外形(xing)(xing)和標準(zhun)進(jin)行檢查(cha),按標準(zhun)、型號分(fen)類平臥疊層堆(dui)放。
The placement of steel bellows shall be coordinated with wire box and reserved hole, and the wire box shall be placed at the position of ribs between pipes as far as possible. After the corrugated pipe is transported to the working face, the shape of the pipe and the sealing of the plug at the pipe end should be checked before laying, and the deformation or crack should be repaired. Check the shape and standard of the bellows, and stack them horizontally according to the standard and model.
依據放(fang)線位置(zhi)進行(xing)波(bo)(bo)紋管(guan)的(de)鋪(pu)設裝置(zhi),在裝置(zhi)過程中,應在管(guan)頂襯(chen)托木(mu)板作維護,不(bu)得直接踐踏波(bo)(bo)紋管(guan)。因波(bo)(bo)紋管(guan)底部(bu)砼層較薄(bo),在裝置(zhi)底部(bu)鋼筋時,有(you)必要安放(fang)并固(gu)定好墊塊(kuai)或馬凳筋,以保證底部(bu)砼層的(de)厚(hou)度(du)。
一般將(jiang)管(guan)拉結錨(mao)(mao)固(gu)在板(ban)底層鋼(gang)筋(jin)上,依據管(guan)徑(jing)巨細,每0.8-1.0米管(guan)長(chang)錨(mao)(mao)固(gu)一次鐵絲(si)(si),底筋(jin)的(de)錨(mao)(mao)固(gu)可別(bie)離放兩條通長(chang)鋼(gang)筋(jin)做壓筋(jin),然后用鐵絲(si)(si)將(jiang)鋼(gang)筋(jin)與模板(ban)支架拉結錨(mao)(mao)緊。壓筋(jin)和拉結鐵絲(si)(si)的(de)巨細、拉結錨(mao)(mao)固(gu)距離經(jing)核算后確認(ren)或由設計院給定。
在管材放入溝槽時,應依據施工設備、溝槽以及管徑巨細,且鄙人管過程中應留意不得與溝壁、溝底呈現劇烈磕碰現象,宜經過適宜的吊車等機械平穩下溝,一起吊裝時不得呈現穿心吊,應少有兩個支撐吊點。為防止澆筑砼時波紋管上浮,將波紋管拉結錨固。//hanihanbj.com/
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