大直徑鋼波紋管拼裝方法你知道嗎?
1、搭設拼裝支架:搭設腳(jiao)(jiao)手(shou)架根據波紋管(guan)(guan)的(de)直徑提前確定(ding),采用管(guan)(guan)扣(kou)連接(jie)(jie)鋼管(guan)(guan)的(de)方(fang)式搭設腳(jiao)(jiao)手(shou)架,形式分(fen)A型和B型腳(jiao)(jiao)手(shou)架長度(du)一般(ban)長25m、克(ke)0、6m、高(gao)為2d3(d為波紋管(guan)(guan)直徑),B型腳(jiao)(jiao)手(shou)架一般(ban)克(ke)為25m高(gao)依據波紋管(guan)(guan)直徑大(da)小拼裝接(jie)(jie)縫位置確定(ding)尺(chi)寸。腳(jiao)(jiao)手(shou)架按上(shang)述尺(chi)寸搭設便于施工、
2、拼裝類型與搭接(jie)方式:拼裝以(yi)中心軸線為基準,由中心向兩端對稱進行安裝,直至(zhi)兩端。1斷(duan)(duan)面(奇數(shu)斷(duan)(duan)面)、Ⅱ斷(duan)(duan)面(偶(ou)數(shu)斷(duan)(duan)面)、加強斷(duan)(duan)面(偶(ou)數(shu)斷(duan)(duan)管管片)
3、波紋管(guan)(guan)拼裝(zhuang)(zhuang):采用刻槽法施工的(de)地基,安裝(zhuang)(zhuang)吊車(che)依(yi)據刻槽深度(du),依(yi)次安裝(zhuang)(zhuang)底部(bu)管(guan)(guan)片(pian)(pian)。底部(bu)管(guan)(guan)片(pian)(pian)安裝(zhuang)(zhuang)完成后對剩(sheng)余管(guan)(guan)片(pian)(pian)進行(xing)安裝(zhuang)(zhuang)。管(guan)(guan)片(pian)(pian)安裝(zhuang)(zhuang)同平基上(shang)的(de)鋼波紋管(guan)(guan)施工。
首圈波(bo)紋(wen)(wen)管圈為奇(qi)數斷(duan)(duan)面,拼(pin)裝(zhuang)時應將(jiang)(jiang)(jiang)管片(pian)(pian)立于(yu)地上(shang)安(an)裝(zhuang),使(shi)用(yong)鐵鉤的(de)(de)(de)一端勾(gou)住(zhu)I斷(duan)(duan)面片(pian)(pian)(1#管片(pian)(pian))波(bo)紋(wen)(wen)管管片(pian)(pian)螺絲囗(wei),用(yong)12噸(dun)的(de)(de)(de)吊車(che)勾(gou)住(zhu)鐵鉤的(de)(de)(de)另(ling)一端,將(jiang)(jiang)(jiang)波(bo)紋(wen)(wen)管片(pian)(pian)立于(yu)墊(dian)層上(shang),然(ran)后使(shi)用(yong)同樣的(de)(de)(de)辦法將(jiang)(jiang)(jiang)第二(er)片(pian)(pian)(6#管片(pian)(pian))波(bo)紋(wen)(wen)管管片(pian)(pian)按圖3、21斷(duan)(duan)面所示的(de)(de)(de)搭接(jie)方式放置,使(shi)用(yong)撬(qiao)棍(gun)將(jiang)(jiang)(jiang)管片(pian)(pian)的(de)(de)(de)螺栓口對齊,將(jiang)(jiang)(jiang)提前準備(bei)好的(de)(de)(de)螺栓螺紋(wen)(wen)部(bu)涂(tu)上(shang)渢滑劑,由內冋外(wai)(wai)插入孔位;波(bo)紋(wen)(wen)管外(wai)(wai)側套上(shang)凹墊(dian)圈或凸墊(dian)圈,遇波(bo)使(shi)用(yong)凸墊(dian)圈,遇波(bo)峰使(shi)用(yong)凹墊(dian)圈墊(dian)圈外(wai)(wai)側旋上(shang)螺母(mu),在用(yong)套筒扳手預緊(jin)螺母(mu),然(ran)后使(shi)用(yong)電(dian)動扳手緊(jin)固(gu)螺母(mu)兩(liang)塊板片(pian)(pian)洤全(quan)部(bu)安(an)裝(zhuang)完(wan)畢;波(bo)紋(wen)(wen)管的(de)(de)(de)螺栓安(an)裝(zhuang)完(wan)畢后,需采(cai)用(yong)專用(yong)注膠槍于(yu)端部(bu)接(jie)合處、緊(jin)回件(jian)連接(jie)的(de)(de)(de)螺栓孔空隙(xi)處涂(tu)抹(mo)中性硅酮耐候(hou)膠。緊(jin)接(jie)著按2#管片(pian)(pian)、5#管片(pian)(pian)、3#管片(pian)(pian)、4#管片(pian)(pian)的(de)(de)(de)施工拼(pin)裝(zhuang)順序,拼(pin)裝(zhuang)好首圈波(bo)紋(wen)(wen)管圖36偶數、奇(qi)數斷(duan)(duan)面交替(ti)拼(pin)裝(zhuang)順序
4、加強斷面拼裝
當波紋管(guan)涵(han)直徑較大、填土高度較高時,必(bi)須設置加強(qiang)(qiang)管(guan)片(pian),稱(cheng)為加強(qiang)(qiang)圈(quan)”,加強(qiang)(qiang)斷面的管(guan)片(pian)安裝(zhuang)工序。
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