根據施(shi)工(gong)(gong)(gong)地點，條件不(bu)同(tong)而不(bu)同(tong)，建筑(zhu)工(gong)(gong)(gong)程須全(quan)封(feng)(feng)(feng)閉(bi)(bi)(bi)(bi)(bi)，市(shi)區主要道(dao)路或(huo)人流大的不(bu)得低于2.5米，其(qi)余不(bu)得低于1.8米，一(yi)般半(ban)封(feng)(feng)(feng)閉(bi)(bi)(bi)(bi)(bi)多(duo)見(jian)于市(shi)政工(gong)(gong)(gong)程，所(suo)謂(wei)的半(ban)封(feng)(feng)(feng)閉(bi)(bi)(bi)(bi)(bi)指兩面(mian)(mian)(mian)或(huo)三面(mian)(mian)(mian)設立(li)(li)圍(wei)(wei)擋，一(yi)面(mian)(mian)(mian)或(huo)兩面(mian)(mian)(mian)開放(fang)，便于施(shi)工(gong)(gong)(gong)機具材(cai)料(liao)的進出(chu)。具體要怎(zen)么(me)(me)設置根據招(zhao)標文件、圖紙、現場環境，施(shi)工(gong)(gong)(gong)組(zu)織設計在保證安全(quan)的情況(kuang)下來確定。舉(ju)個例子(zi)，假設市(shi)政工(gong)(gong)(gong)程在鬧市(shi)，一(yi)個道(dao)路維(wei)修(xiu)(xiu)工(gong)(gong)(gong)程，半(ban)幅(fu)開放(fang)交通，半(ban)幅(fu)維(wei)修(xiu)(xiu)，這個時候就(jiu)需要全(quan)封(feng)(feng)(feng)閉(bi)(bi)(bi)(bi)(bi)，保證不(bu)會(hui)有(you)行人誤入而引發危(wei)險。再假設一(yi)條新建道(dao)路位于郊區，一(yi)端與老路相(xiang)接，另一(yi)端為(wei)野地，那么(me)(me)只需要在新老路交接處設立(li)(li)單面(mian)(mian)(mian)的圍(wei)(wei)墻和一(yi)扇門(men)即可(ke)(ke)，其(qi)余三面(mian)(mian)(mian)可(ke)(ke)以(yi)不(bu)封(feng)(feng)(feng)閉(bi)(bi)(bi)(bi)(bi)。全(quan)封(feng)(feng)(feng)閉(bi)(bi)(bi)(bi)(bi)圍(wei)(wei)擋：將(jiang)整個施(shi)工(gong)(gong)(gong)范圍(wei)(wei)用硬(ying)質材(cai)料(liao)圍(wei)(wei)起來，組(zu)成(cheng)全(quan)封(feng)(feng)(feng)閉(bi)(bi)(bi)(bi)(bi)圍(wei)(wei)墻半(ban)封(feng)(feng)(feng)閉(bi)(bi)(bi)(bi)(bi)：有(you)一(yi)面(mian)(mian)(mian)或(huo)多(duo)個面(mian)(mian)(mian)不(bu)設圍(wei)(wei)擋的，即為(wei)半(ban)封(feng)(feng)(feng)閉(bi)(bi)(bi)(bi)(bi)。

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