根據施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)地(di)點(dian)，條件不(bu)同(tong)而(er)不(bu)同(tong)，建(jian)筑工(gong)(gong)(gong)(gong)(gong)程須全(quan)(quan)封(feng)閉(bi)，市(shi)區主要道(dao)路(lu)或(huo)人流(liu)大的不(bu)得低(di)于(yu)(yu)2.5米，其余(yu)不(bu)得低(di)于(yu)(yu)1.8米，一(yi)(yi)般半封(feng)閉(bi)多見于(yu)(yu)市(shi)政工(gong)(gong)(gong)(gong)(gong)程，所謂的半封(feng)閉(bi)指(zhi)兩面(mian)或(huo)三面(mian)設(she)(she)立(li)圍(wei)(wei)擋(dang)，一(yi)(yi)面(mian)或(huo)兩面(mian)開(kai)放(fang)，便于(yu)(yu)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)機具(ju)材(cai)(cai)料的進出。具(ju)體要怎么設(she)(she)置根據招標文件、圖紙、現場(chang)環境，施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)組(zu)織(zhi)設(she)(she)計在保(bao)證安全(quan)(quan)的情況下來(lai)確(que)定。舉個例子，假(jia)設(she)(she)市(shi)政工(gong)(gong)(gong)(gong)(gong)程在鬧市(shi)，一(yi)(yi)個道(dao)路(lu)維修工(gong)(gong)(gong)(gong)(gong)程，半幅開(kai)放(fang)交通，半幅維修，這個時候(hou)就(jiu)需要全(quan)(quan)封(feng)閉(bi)，保(bao)證不(bu)會有行人誤入(ru)而(er)引發危險。再假(jia)設(she)(she)一(yi)(yi)條新建(jian)道(dao)路(lu)位于(yu)(yu)郊區，一(yi)(yi)端與老(lao)路(lu)相接，另(ling)一(yi)(yi)端為野地(di)，那么只需要在新老(lao)路(lu)交接處設(she)(she)立(li)單面(mian)的圍(wei)(wei)墻(qiang)和一(yi)(yi)扇門即(ji)可(ke)，其余(yu)三面(mian)可(ke)以不(bu)封(feng)閉(bi)。全(quan)(quan)封(feng)閉(bi)圍(wei)(wei)擋(dang)：將(jiang)整個施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)范圍(wei)(wei)用硬質材(cai)(cai)料圍(wei)(wei)起來(lai)，組(zu)成(cheng)全(quan)(quan)封(feng)閉(bi)圍(wei)(wei)墻(qiang)半封(feng)閉(bi)：有一(yi)(yi)面(mian)或(huo)多個面(mian)不(bu)設(she)(she)圍(wei)(wei)擋(dang)的，即(ji)為半封(feng)閉(bi)。

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