當前位置：
頂管施工(gong)的原(yuan)理(li)及工(gong)作方法(fa)--內蒙古頂管施工
頂管(guan)(guan)施(shi)工(gong)(gong)是繼盾構施(shi)工(gong)(gong)之后(hou)而發(fa)展(zhan)起來(lai)的(de)一種(zhong)(zhong)地下(xia)管(guan)(guan)道施(shi)工(gong)(gong)方(fang)法，它不需要(yao)開挖面(mian)層，并且能夠穿(chuan)越公路、鐵道、河川、地面(mian)建(jian)筑物、地下(xia)構筑物以(yi)及(ji)各種(zhong)(zhong)地下(xia)管(guan)(guan)線等(deng)。頂管(guan)(guan)施(shi)工(gong)(gong)借助(zhu)于(yu)主頂油缸(gang)及(ji)管(guan)(guan)道間中(zhong)繼間等(deng)的(de)推力，把工(gong)(gong)具(ju)管(guan)(guan)或掘進機從工(gong)(gong)作井內(nei)穿(chuan)過土層一直推到(dao)接收井內(nei)吊(diao)起。與此同(tong)時，也就(jiu)把緊隨工(gong)(gong)具(ju)管(guan)(guan)或掘進機后(hou)的(de)管(guan)(guan)道埋(mai)設(she)在兩井之間，以(yi)期實現非(fei)開挖敷設(she)地下(xia)管(guan)(guan)道的(de)施(shi)工(gong)(gong)方(fang)法。
頂管(guan)(guan)施工常用的方法(fa)(fa)(fa)有：人(ren)工、機械或水力掘進(jin)頂管(guan)(guan)，或不(bu)(bu)(bu)出土(tu)的擠(ji)壓土(tu)層(ceng)頂管(guan)(guan)。近幾年，隨著施工技術的不(bu)(bu)(bu)斷(duan)進(jin)步和(he)發(fa)展(zhan)，出現(xian)了許多針對(dui)不(bu)(bu)(bu)同(tong)現(xian)場(chang)情(qing)況(kuang)而(er)創立(li)的新方法(fa)(fa)(fa)，如(ru)導向鉆進(jin)鋪管(guan)(guan)法(fa)(fa)(fa)，混凝(ning)土(tu)方（拱）管(guan)(guan)涵(han)頂進(jin)等(deng)方法(fa)(fa)(fa)。采用何種方法(fa)(fa)(fa)，則(ze)要(yao)根據管(guan)(guan)徑大小、土(tu)層(ceng)性質、管(guan)(guan)線長度及(ji)其它因(yin)素來決定。
