根(gen)(gen)據(ju)施(shi)(shi)(shi)工(gong)(gong)(gong)地點，條(tiao)(tiao)件不(bu)同(tong)而不(bu)同(tong)，建筑工(gong)(gong)(gong)程(cheng)須全(quan)封(feng)(feng)(feng)(feng)閉(bi)，市區(qu)(qu)主要(yao)道路(lu)(lu)或(huo)人(ren)流大的(de)不(bu)得低于2.5米(mi)，其(qi)余(yu)不(bu)得低于1.8米(mi)，一(yi)(yi)般半(ban)封(feng)(feng)(feng)(feng)閉(bi)多(duo)(duo)見于市政(zheng)工(gong)(gong)(gong)程(cheng)，所(suo)謂的(de)半(ban)封(feng)(feng)(feng)(feng)閉(bi)指兩面(mian)或(huo)三面(mian)設(she)立圍(wei)(wei)擋，一(yi)(yi)面(mian)或(huo)兩面(mian)開放，便(bian)于施(shi)(shi)(shi)工(gong)(gong)(gong)機(ji)具(ju)材料(liao)的(de)進出。具(ju)體要(yao)怎么設(she)置根(gen)(gen)據(ju)招標(biao)文(wen)件、圖紙、現場環境，施(shi)(shi)(shi)工(gong)(gong)(gong)組(zu)織設(she)計在(zai)(zai)保證(zheng)安全(quan)的(de)情況下(xia)來確定(ding)。舉個例子，假(jia)設(she)市政(zheng)工(gong)(gong)(gong)程(cheng)在(zai)(zai)鬧市，一(yi)(yi)個道路(lu)(lu)維(wei)修工(gong)(gong)(gong)程(cheng)，半(ban)幅開放交通，半(ban)幅維(wei)修，這(zhe)個時候就需要(yao)全(quan)封(feng)(feng)(feng)(feng)閉(bi)，保證(zheng)不(bu)會(hui)有行人(ren)誤入而引發危險。再(zai)假(jia)設(she)一(yi)(yi)條(tiao)(tiao)新建道路(lu)(lu)位于郊區(qu)(qu)，一(yi)(yi)端(duan)與老路(lu)(lu)相(xiang)接，另一(yi)(yi)端(duan)為(wei)野(ye)地，那么只(zhi)需要(yao)在(zai)(zai)新老路(lu)(lu)交接處設(she)立單面(mian)的(de)圍(wei)(wei)墻和一(yi)(yi)扇門即可，其(qi)余(yu)三面(mian)可以不(bu)封(feng)(feng)(feng)(feng)閉(bi)。全(quan)封(feng)(feng)(feng)(feng)閉(bi)圍(wei)(wei)擋：將(jiang)整個施(shi)(shi)(shi)工(gong)(gong)(gong)范圍(wei)(wei)用硬質材料(liao)圍(wei)(wei)起來，組(zu)成全(quan)封(feng)(feng)(feng)(feng)閉(bi)圍(wei)(wei)墻半(ban)封(feng)(feng)(feng)(feng)閉(bi)：有一(yi)(yi)面(mian)或(huo)多(duo)(duo)個面(mian)不(bu)設(she)圍(wei)(wei)擋的(de)，即為(wei)半(ban)封(feng)(feng)(feng)(feng)閉(bi)。

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