根(gen)據(ju)施工(gong)(gong)(gong)(gong)地點，條件(jian)不(bu)同(tong)而不(bu)同(tong)，建(jian)筑工(gong)(gong)(gong)(gong)程須全封(feng)(feng)閉(bi)，市(shi)區主(zhu)要(yao)道(dao)路(lu)或(huo)人流大的不(bu)得(de)低(di)于(yu)(yu)2.5米，其余不(bu)得(de)低(di)于(yu)(yu)1.8米，一(yi)(yi)般(ban)半封(feng)(feng)閉(bi)多見于(yu)(yu)市(shi)政工(gong)(gong)(gong)(gong)程，所(suo)謂的半封(feng)(feng)閉(bi)指(zhi)兩面(mian)(mian)或(huo)三(san)面(mian)(mian)設(she)立圍(wei)(wei)擋(dang)，一(yi)(yi)面(mian)(mian)或(huo)兩面(mian)(mian)開放，便(bian)于(yu)(yu)施工(gong)(gong)(gong)(gong)機具材料的進出(chu)。具體要(yao)怎么設(she)置根(gen)據(ju)招標文(wen)件(jian)、圖紙、現場環境，施工(gong)(gong)(gong)(gong)組織(zhi)設(she)計在(zai)保(bao)證安全的情況下來確定。舉個(ge)例子，假(jia)設(she)市(shi)政工(gong)(gong)(gong)(gong)程在(zai)鬧市(shi)，一(yi)(yi)個(ge)道(dao)路(lu)維(wei)(wei)修工(gong)(gong)(gong)(gong)程，半幅(fu)開放交(jiao)通，半幅(fu)維(wei)(wei)修，這個(ge)時候就(jiu)需(xu)要(yao)全封(feng)(feng)閉(bi)，保(bao)證不(bu)會有行人誤入(ru)而引發危險(xian)。再假(jia)設(she)一(yi)(yi)條新建(jian)道(dao)路(lu)位于(yu)(yu)郊區，一(yi)(yi)端(duan)與老路(lu)相接，另(ling)一(yi)(yi)端(duan)為(wei)野地，那么只需(xu)要(yao)在(zai)新老路(lu)交(jiao)接處設(she)立單面(mian)(mian)的圍(wei)(wei)墻和一(yi)(yi)扇門即可，其余三(san)面(mian)(mian)可以不(bu)封(feng)(feng)閉(bi)。全封(feng)(feng)閉(bi)圍(wei)(wei)擋(dang)：將整個(ge)施工(gong)(gong)(gong)(gong)范圍(wei)(wei)用硬質材料圍(wei)(wei)起來，組成全封(feng)(feng)閉(bi)圍(wei)(wei)墻半封(feng)(feng)閉(bi)：有一(yi)(yi)面(mian)(mian)或(huo)多個(ge)面(mian)(mian)不(bu)設(she)圍(wei)(wei)擋(dang)的，即為(wei)半封(feng)(feng)閉(bi)。

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