根(gen)據(ju)施工(gong)(gong)(gong)地點，條件不(bu)(bu)同(tong)而不(bu)(bu)同(tong)，建筑工(gong)(gong)(gong)程(cheng)須全封(feng)(feng)閉(bi)，市區主要道路或(huo)(huo)(huo)人流大的(de)(de)不(bu)(bu)得低于(yu)2.5米，其(qi)余(yu)不(bu)(bu)得低于(yu)1.8米，一(yi)般半(ban)(ban)封(feng)(feng)閉(bi)多見于(yu)市政工(gong)(gong)(gong)程(cheng)，所謂的(de)(de)半(ban)(ban)封(feng)(feng)閉(bi)指兩面(mian)(mian)或(huo)(huo)(huo)三面(mian)(mian)設(she)立圍(wei)(wei)擋(dang)，一(yi)面(mian)(mian)或(huo)(huo)(huo)兩面(mian)(mian)開放，便于(yu)施工(gong)(gong)(gong)機具材料的(de)(de)進出(chu)。具體(ti)要怎么設(she)置根(gen)據(ju)招標文件、圖紙、現場環(huan)境，施工(gong)(gong)(gong)組織設(she)計(ji)在(zai)保證安(an)全的(de)(de)情況下來確(que)定。舉個(ge)例子，假設(she)市政工(gong)(gong)(gong)程(cheng)在(zai)鬧市，一(yi)個(ge)道路維修(xiu)工(gong)(gong)(gong)程(cheng)，半(ban)(ban)幅開放交(jiao)(jiao)通(tong)，半(ban)(ban)幅維修(xiu)，這個(ge)時候就(jiu)需要全封(feng)(feng)閉(bi)，保證不(bu)(bu)會有行人誤入(ru)而引(yin)發危險(xian)。再假設(she)一(yi)條新建道路位(wei)于(yu)郊區，一(yi)端與老路相(xiang)接，另(ling)一(yi)端為(wei)野地，那么只需要在(zai)新老路交(jiao)(jiao)接處設(she)立單面(mian)(mian)的(de)(de)圍(wei)(wei)墻(qiang)和一(yi)扇門(men)即可，其(qi)余(yu)三面(mian)(mian)可以不(bu)(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)范圍(wei)(wei)用硬質材料圍(wei)(wei)起來，組成(cheng)全封(feng)(feng)閉(bi)圍(wei)(wei)墻(qiang)半(ban)(ban)封(feng)(feng)閉(bi)：有一(yi)面(mian)(mian)或(huo)(huo)(huo)多個(ge)面(mian)(mian)不(bu)(bu)設(she)圍(wei)(wei)擋(dang)的(de)(de)，即為(wei)半(ban)(ban)封(feng)(feng)閉(bi)。

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