1)搭(da)設拼裝支架(jia)(jia):搭(da)設腳(jiao)手架(jia)(jia)根據波紋管(guan)(guan)的(de)直徑提前(qian)確定,采用管(guan)(guan)扣連(lian)接鋼管(guan)(guan)的(de)方(fang)式搭(da)設腳(jiao)手架(jia)(jia),形式分A型(xing)和B型(xing)腳(jiao)手架(jia)(jia)

長(chang)度(du)一般長(chang)25m、克(ke)0.6m、高為2d3(d為波紋管直徑(jing)),B型腳手架一般克(ke)為25m高依據波紋管直徑(jing)大小拼(pin)裝接(jie)縫位(wei)置確(que)定尺寸。腳手架按上述尺寸搭設最(zui)便于施工.

(2)拼裝類型與搭(da)接(jie)方式

拼裝以(yi)中(zhong)心軸線(xian)為基準,由(you)中(zhong)心向兩端對稱進行安裝,直至兩端。1斷(duan)(duan)(duan)面(mian)(奇數斷(duan)(duan)(duan)面(mian))、Ⅱ斷(duan)(duan)(duan)面(mian)(偶數斷(duan)(duan)(duan)面(mian))、加強斷(duan)(duan)(duan)面(mian)(偶數斷(duan)(duan)(duan)管管片）

(3)波紋管拼裝

采用刻槽法施(shi)工的地基，安(an)(an)裝(zhuang)(zhuang)(zhuang)吊車依據刻槽深(shen)度，依次安(an)(an)裝(zhuang)(zhuang)(zhuang)底部(bu)管(guan)(guan)(guan)片(pian)(pian)。底部(bu)管(guan)(guan)(guan)片(pian)(pian)安(an)(an)裝(zhuang)(zhuang)(zhuang)完成后對剩余(yu)管(guan)(guan)(guan)片(pian)(pian)進行安(an)(an)裝(zhuang)(zhuang)(zhuang)。管(guan)(guan)(guan)片(pian)(pian)安(an)(an)裝(zhuang)(zhuang)(zhuang)同平基上的鋼波紋管(guan)(guan)(guan)施(shi)工。

首圈波紋管(guan)圈為奇數斷(duan)面,拼裝時(shi)應將(jiang)管(guan)片(pian)立于地上(shang)安裝,使用鐵鉤的一端勾住I斷(duan)面第一片(pian)(1#管(guan)片(pian))波紋管(guan)管(guan)片(pian)螺(luo)絲囗,用12噸

的吊車勾住鐵鉤的另一端(duan),將波(bo)紋管片(pian)立于墊層上,然后使用同(tong)樣(yang)的辦法將第二(er)片(pian)(6#管片(pian))波(bo)紋管管片(pian)按圖3.21斷面所(suo)示的搭接方式(shi)放

置,使(shi)用撬棍將(jiang)(jiang)管片的螺(luo)栓(shuan)口對齊(qi),將(jiang)(jiang)提前(qian)準備(bei)好(hao)的螺(luo)栓(shuan)螺(luo)紋部涂上渢滑劑,由內冋外插入孔位;波紋管外側套上凹墊圈(quan)(quan)或凸(tu)墊圈(quan)(quan),遇(yu)波

使用凸(tu)墊圈,遇波(bo)峰使用凹墊圈

墊圈外(wai)側(ce)旋上螺母(mu),在用套筒扳(ban)手預緊螺母(mu),然后使用電(dian)動(dong)扳(ban)手緊固螺母(mu)

兩塊板片

洤全部(bu)安裝完畢(bi);波(bo)紋管的螺(luo)栓(shuan)安裝完畢(bi)后,需采用(yong)專用(yong)注膠槍于端部(bu)接(jie)合處、緊回件連接(jie)的螺(luo)栓(shuan)孔空隙處涂抹(mo)中性(xing)硅酮耐候膠。緊接(jie)

著按(an)2#管(guan)片(pian)(pian)、5#管(guan)片(pian)(pian)、3#管(guan)片(pian)(pian)、4#管(guan)片(pian)(pian)的施(shi)工拼(pin)裝(zhuang)順(shun)序,拼(pin)裝(zhuang)好首圈波紋管(guan)

圖36偶數(shu)、奇(qi)數(shu)斷面交替拼裝順序

(6)加強斷面拼裝

當波(bo)紋(wen)管涵(han)直徑較大、填土高度(du)較高時,必須(xu)設置加(jia)(jia)強管片,稱(cheng)為加(jia)(jia)強圈”,加(jia)(jia)強斷面的管片安裝工序