制約長(chang)距離(li)頂管的一個重要因(yin)素是(shi)推力陽(yang)9’3引，頂管工程的設(she)計施工中(zhong)，工作(zuo)坑、管道材(cai)料、中(zhong)繼站、其他設(she)備，都要以頂管頂進阻…

1、當(dang)工(gong)具管前(qian)面(mian)刃(ren)腳切(qie)入(ru)土(tu)中(zhong)，會引起(qi)前(qian)方土(tu)體松動而坍塌，周圍(wei)土(tu)體也會松動。 2、每一次(ci)土(tu)體的取出，都(dou)是同(tong)過挖除(chu)工(gong)作面(mian)范圍(wei)…

1頂管施工時2根管道錯開頂進(jin)，錯開距離為100m左右，在(zai)一(yi)根頂進(jin)的同時另外一(yi)根進(jin)行拼裝焊接，以(yi)減少(shao)對土體的擾動(dong)。2初始頂…

土(tu)壓平衡(heng)式頂管是以土(tu)壓平衡(heng)為工(gong)(gong)作原理的(de)一種頂管施工(gong)(gong)方法(fa).在(zai)工(gong)(gong)作時,通過大(da)刀(dao)盤及仿形刀(dao)盤對機頭正面土(tu)體(ti)的(de)全端(duan)面切削,利用主…

泥水(shui)(shui)平衡(heng)頂(ding)管(guan)施(shi)工(gong)工(gong)法(fa)是用泥水(shui)(shui)平衡(heng)頂(ding)管(guan)機施(shi)工(gong)的一種(zhong)頂(ding)管(guan)施(shi)工(gong)工(gong)藝。它在施(shi)工(gong)時通過進(jin)水(shui)(shui)管(guan)向頂(ding)管(guan)機刀盤后的泥水(shui)(shui)艙(cang)內供給一定比重、…