分類:行(xing)業新聞發布時間(jian):2018/02/05
眾所周知,混凝土輸送泵的管道布置(zhi)方式是混凝土輸(shu)送(song)的重要環(huan)節,那(nei)么混凝土輸(shu)送(song)泵到底應(ying)該如何科(ke)(ke)學布管呢?下面三民小編就來(lai)為(wei)大家詳介紹一(yi)下不同情況下混凝土輸(shu)送(song)泵科(ke)(ke)學布管的方式
1、垂直向上(shang)的管(guan)路布置(zhi)
垂(chui)直向上(shang)的(de)(de)(de)(de)輸(shu)送(song)管(guan)(guan)(guan)(guan)路(lu)(lu)(lu)可以(yi)沿電梯井,腳手架(jia)向上(shang)布置(zhi),也可從樓面預留孔中(zhong)穿過,這便于管(guan)(guan)(guan)(guan)路(lu)(lu)(lu)拆(chai)裝。垂(chui)直向上(shang)的(de)(de)(de)(de)輸(shu)送(song)管(guan)(guan)(guan)(guan)路(lu)(lu)(lu)必(bi)須用新(xin)管(guan)(guan)(guan)(guan),高(gao)度較大時,底部應(ying)使(shi)用厚(hou)壁(bi)管(guan)(guan)(guan)(guan)下面的(de)(de)(de)(de)彎(wan)(wan)(wan)管(guan)(guan)(guan)(guan)應(ying)為(wei)厚(hou)壁(bi)管(guan)(guan)(guan)(guan),且易于拆(chai)卸。垂(chui)直管(guan)(guan)(guan)(guan)路(lu)(lu)(lu)不(bu)能使(shi)用彎(wan)(wan)(wan)管(guan)(guan)(guan)(guan)做支撐(cheng)(cheng),每(mei)根管(guan)(guan)(guan)(guan)都應(ying)設1-2個支撐(cheng)(cheng)。直管(guan)(guan)(guan)(guan)及(ji)彎(wan)(wan)(wan)管(guan)(guan)(guan)(guan)需夾子固(gu)定,即固(gu)定于墻(qiang)上(shang),腳手架(jia)上(shang)、塔機塔身或電梯井內,使(shi)管(guan)(guan)(guan)(guan)路(lu)(lu)(lu)及(ji)輸(shu)送(song)的(de)(de)(de)(de)混(hun)凝土料(liao)的(de)(de)(de)(de)重力由支撐(cheng)(cheng)點傳到建筑物上(shang)。垂(chui)直管(guan)(guan)(guan)(guan)路(lu)(lu)(lu)隨著高(gao)度的(de)(de)(de)(de)增加(jia),被輸(shu)送(song)的(de)(de)(de)(de)混(hun)凝土有回流的(de)(de)(de)(de)趨勢,對S管(guan)(guan)(guan)(guan)產生沖擊,為(wei)減弱這種沖擊力,應(ying)在(zai)攪拌拖泵和垂(chui)直管(guan)(guan)(guan)(guan)路(lu)(lu)(lu)間鋪(pu)設一定長度的(de)(de)(de)(de)水平管(guan)(guan)(guan)(guan)路(lu)(lu)(lu),以(yi)保證有足夠的(de)(de)(de)(de)阻(zu)力阻(zu)止混(hun)凝土回流。水平管(guan)(guan)(guan)(guan)路(lu)(lu)(lu)的(de)(de)(de)(de)長度一般應(ying)不(bu)小于垂(chui)直管(guan)(guan)(guan)(guan)道長度的(de)(de)(de)(de)15%,高(gao)層泵送(song),應(ying)在(zai)攪拌拖泵的(de)(de)(de)(de)水平管(guan)(guan)(guan)(guan)路(lu)(lu)(lu)中(zhong)設置(zhi)管(guan)(guan)(guan)(guan)路(lu)(lu)(lu)截(jie)止閥。
2、垂直向下的管路布置(zhi)
垂直向下輸送(song)(song)混(hun)(hun)凝土(tu),當落差(cha)大于6mm時,為防止混(hun)(hun)凝土(tu)離析,應按下圖(tu)來布(bu)管,并且(qie)攪拌拖泵在(zai)泵送(song)(song)時,應在(zai)相隔20-30m的(de)不同(tong)高度的(de)管路中裝入海(hai)綿球以保證泵送(song)(song)順利。
水(shui)(shui)平(ping)泵送(song)混凝土管(guan)(guan)(guan)道(dao)(dao)(dao)布置的(de)一般(ban)要求:管(guan)(guan)(guan)道(dao)(dao)(dao)應(ying)盡可(ke)能平(ping)整,管(guan)(guan)(guan)道(dao)(dao)(dao)只能用木料等較(jiao)軟(ruan)的(de)物件(jian)與管(guan)(guan)(guan)件(jian)接(jie)觸(chu)支撐(cheng),每個(ge)管(guan)(guan)(guan)件(jian)都應(ying)有(you)一、兩(liang)個(ge)牢固的(de)支點,管(guan)(guan)(guan)件(jian)要避免同巖(yan)石、混凝土建(jian)筑物及(ji)鋼鐵直接(jie)摩擦。在布置水(shui)(shui)平(ping)管(guan)(guan)(guan)時(shi),應(ying)使(shi)泵處于(yu)稍低位置,管(guan)(guan)(guan)道(dao)(dao)(dao)略為向上,泵送(song)為有(you)利。
在隧(sui)洞混凝土襯(chen)(chen)砌(qi)施工中,問題較多的(de)是隧(sui)洞頂拱(gong)(gong)(gong)襯(chen)(chen)砌(qi),頂拱(gong)(gong)(gong)襯(chen)(chen)砌(qi)的(de)后階段是封拱(gong)(gong)(gong),因(yin)此(ci)在頂拱(gong)(gong)(gong)澆注的(de)輸送管道布置時(shi),必須考慮封拱(gong)(gong)(gong)的(de)方法,在平洞施工中,根據輸送管末一段尾管的(de)布置,分為水平封拱(gong)(gong)(gong)和垂直封拱(gong)(gong)(gong)兩種封拱(gong)(gong)(gong)方式。
以上是三民小編為(wei)大家(jia)講(jiang)解的(de)混凝土(tu)輸送(song)泵科學布管(guan)方式,希(xi)望大家(jia)能(neng)認真學習,認真操作!