铁道建筑技术
鐵道建築技術
철도건축기술
RAILWAY CONSTRUCTION TECHNOLOGY
2011年
8期
30-32
,共3页
中粗砂地层%土压平衡盾构机%刀盘扭矩%刀盘开口率
中粗砂地層%土壓平衡盾構機%刀盤扭矩%刀盤開口率
중조사지층%토압평형순구궤%도반뉴구%도반개구솔
stratum of coarse sand%earth pressure balance shield%cutter head torque%open ratio of cutter head
盾构法施二已成为开挖城市地铁隧道的主要工法。但盾构施工中,刀盘驱动扭矩过大,始终是制约施工进度的主要因素。从盾构机刀盘驱动系统、土仓内切削土体、泡沫系统、刀盘开口率、刀具选型等5个方面对盾构机刀盘驱动扭矩过大的原因进行了分析,提出了切实可行的解决办法,并在沈阳地铁一号线云沈区间盾构施工中得到了成功的应用。
盾構法施二已成為開挖城市地鐵隧道的主要工法。但盾構施工中,刀盤驅動扭矩過大,始終是製約施工進度的主要因素。從盾構機刀盤驅動繫統、土倉內切削土體、泡沫繫統、刀盤開口率、刀具選型等5箇方麵對盾構機刀盤驅動扭矩過大的原因進行瞭分析,提齣瞭切實可行的解決辦法,併在瀋暘地鐵一號線雲瀋區間盾構施工中得到瞭成功的應用。
순구법시이이성위개알성시지철수도적주요공법。단순구시공중,도반구동뉴구과대,시종시제약시공진도적주요인소。종순구궤도반구동계통、토창내절삭토체、포말계통、도반개구솔、도구선형등5개방면대순구궤도반구동뉴구과대적원인진행료분석,제출료절실가행적해결판법,병재침양지철일호선운침구간순구시공중득도료성공적응용。
The shielc method has been popularly applied in the excavation of city subway tunnels.But the oversized cutting wheel drive torque has always been the main factor restricting the construction speed in shield construction process.This paper analyses the reasons of the oversized cutting wheel drive torque from five aspects,namely,the cutting wheel drive system of the shield machine,the soil cutting system,the foam system,the open ratio of cutter head,and the selection of cutting tools.A feasible solution has been proposed and successfully applied in the shield construction of Yunfeng north street station-Shenyang station of Shenyang Metro Line One.
