公路鋼波紋管定位(wei),要(yao)以(yi)波(bo)紋管底為基準,按照(zhao)設計圖(tu)中(zhong)預應力筋的(de)曲線坐標進行(xing)定位(wei)。鑲(xiang)石(shi)(shi)棉(mian)墊:由于現(xian)場地勢等原因,有時(shi)相鄰(lin)兩(liang)法(fa)蘭(lan)之間(jian)(jian)(jian)間(jian)(jian)(jian)距較小,這時(shi)用(yong)(yong)手錘、鑿子把(ba)兩(liang)法(fa)蘭(lan)之間(jian)(jian)(jian)鑿開大約1cm的(de)縫隙(xi),用(yong)(yong)螺(luo)絲刀把(ba)石(shi)(shi)棉(mian)墊鑲(xiang)在兩(liang)法(fa)蘭(lan)之間(jian)(jian)(jian),有時(shi)管子頂部兩(liang)法(fa)蘭(lan)間(jian)(jian)(jian)距較大,石(shi)(shi)棉(mian)墊鑲(xiang)嵌困(kun)難,用(yong)(yong)綁絲把(ba)石(shi)(shi)棉(mian)墊綁在螺(luo)栓上固(gu)定,然(ran)后工(gong)人開始對稱鎖緊螺(luo)絲。
收藏方便以后查閱公路(lu)波紋涵管(guan)安裝(zhuang)前檢查的內容有哪(na)些?
使(shi)其兩根管法蘭上的(de)螺栓孔(kong)對正,這時(shi)從第二(er)節(jie)(jie)管的(de)另一端用(yong)撬杠撬動管節(jie)(jie),使(shi)其縱向(xiang)平移,使(shi)兩法蘭間(jian)距在2cm左右(you),然后全部穿上螺栓,擰(ning)上螺絲,帶(dai)平扣即可。此后依此方式(shi)逐節(jie)(jie)依次(ci)連(lian)接,每道涵洞中間(jian)管節(jie)(jie)無先后次(ci)序,可以隨意連(lian)接。
鋼制波(bo)紋(wen)管(guan)涵
直(zhi)至(zhi)從外觀(guan)看(kan)兩法蘭之(zhi)間只有2—3mm的縫隙即可。連接安(an)(an)裝波紋涵(han)管(guan):根據(ju)涵(han)洞實際情(qing)況,排放涵(han)管(guan)。如果涵(han)洞兩側(ce)進出水(shui)(shui)口是與(yu)路基(ji)同坡度(du)(du)的斜(xie)口形式,安(an)(an)裝時先(xian)安(an)(an)裝中間管(guan)節(jie),在基(ji)礎長度(du)(du)方向(xiang)留出進出水(shui)(shui)口的位置。中間管(guan)節(jie)全部安(an)(an)裝完畢,校正就位后(hou)再安(an)(an)裝兩側(ce)進出水(shui)(shui)口。
金屬波(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)安(an)裝前(qian),要(yao)對(dui)外觀進行檢查,防(fang)(fang)止變(bian)形的,有沙眼的波(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)皮安(an)裝在里面。兩根金屬波(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)接頭(tou)接縫處,要(yao)保(bao)證接頭(tou)長不小于30厘米(mi),兩端距離相(xiang)等,接縫處用(yong)(yong)密(mi)封膠(jiao)帶封好(hao),嚴防(fang)(fang)漏漿。金屬波(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)在澆筑政(zheng)的過程中會產生上(shang)浮現象,因此,波(bo)(bo)(bo)紋(wen)(wen)管(guan)(guan)就位后(hou),可在管(guan)(guan)上(shang)綁(bang)一根“n”型鋼筋,并(bing)與托(tuo)(tuo)架鋼筋焊接牢固,間距一般為60厘米(mi),托(tuo)(tuo)架焊在箍筋上(shang),箍筋下面用(yong)(yong)墊付塊墊實(shi)。
金屬波紋管(guan)運(yun)到施工(gong)現(xian)場,要進入(ru)倉庫房堆放(fang),下(xia)部用木板墊高,不能淋雨,防(fang)止生銹。安裝(zhuang)時(shi)從一側排放(fang)根(gen)管(guan)節(jie),使其管(guan)子中心和基(ji)礎縱向中心線(xian)平(ping)行,同樣把第二(er)根(gen)管(guan)放(fang)置就位,當兩根(gen)管(guan)相(xiang)鄰(lin)法蘭間(jian)相(xiang)距3—5cm的縫隙時(shi),用小撬棍對準法蘭上的螺(luo)栓(shuan)孔。
金屬波(bo)紋(wen)管(guan)(guan)在安(an)裝過程(cheng)中要避免(mian)反復(fu)彎曲出(chu)現管(guan)(guan)壁開裂,影響(xiang)施工質(zhi)量。在焊接(jie)時(shi)應(ying)當(dang)做好防范(fan)掩(yan)護(hu),避免(mian)電焊火花燒(shao)傷管(guan)(guan)壁。金屬波(bo)紋(wen)管(guan)(guan)與(yu)預埋鋼板連接(jie)時(shi),管(guan)(guan)伸人錨(mao)(mao)墊板喇叭孔內不小于5厘米,波(bo)紋(wen)管(guan)(guan)和錨(mao)(mao)墊板四周要用(yong)海棉塞緊,防止水(shui)泥砂漿流(liu)入錨(mao)(mao)墊板內。(hanihanbj.com)
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