制約長距離(li)頂管的一個重(zhong)要因素是(shi)推力陽9’3引，頂管工(gong)(gong)程的設計(ji)施工(gong)(gong)中，工(gong)(gong)作坑、管道材料(liao)、中繼站、其(qi)他設備，都要以頂管頂進阻(zu)…

1、當工(gong)具管前面刃腳切入土(tu)中(zhong)，會(hui)引起前方土(tu)體(ti)松動(dong)而坍塌，周圍土(tu)體(ti)也(ye)會(hui)松動(dong)。 2、每一次土(tu)體(ti)的取出(chu)，都(dou)是(shi)同過挖除工(gong)作面范(fan)圍…

1頂(ding)(ding)管施工時(shi)2根(gen)管道錯開頂(ding)(ding)進，錯開距離為100m左(zuo)右，在(zai)一根(gen)頂(ding)(ding)進的同時(shi)另外一根(gen)進行拼(pin)裝焊接，以減少(shao)對土(tu)體(ti)的擾動。2初始頂(ding)(ding)…

土(tu)壓(ya)平衡式頂管(guan)是以(yi)土(tu)壓(ya)平衡為(wei)工(gong)作原理(li)的一種頂管(guan)施工(gong)方法(fa).在工(gong)作時,通過大刀(dao)盤及仿形刀(dao)盤對(dui)機頭正(zheng)面土(tu)體的全(quan)端面切削,利(li)用主…

泥(ni)水平(ping)(ping)衡頂(ding)管(guan)(guan)(guan)施工(gong)(gong)工(gong)(gong)法是用泥(ni)水平(ping)(ping)衡頂(ding)管(guan)(guan)(guan)機(ji)施工(gong)(gong)的(de)一(yi)種(zhong)頂(ding)管(guan)(guan)(guan)施工(gong)(gong)工(gong)(gong)藝。它在施工(gong)(gong)時通過進水管(guan)(guan)(guan)向頂(ding)管(guan)(guan)(guan)機(ji)刀(dao)盤(pan)后的(de)泥(ni)水艙(cang)內(nei)供給一(yi)定比(bi)重、…