铁道建筑技术
鐵道建築技術
철도건축기술
RAILWAY CONSTRUCTION TECHNOLOGY
2014年
9期
18-20
,共3页
上软下硬地层%盾构掘进%风险对策%孤石
上軟下硬地層%盾構掘進%風險對策%孤石
상연하경지층%순구굴진%풍험대책%고석
soft under hard formation%shield tunneling%risk countermeasures%boulder
以东莞市轨道交通R2线2309标盾构区间为依托，分析了盾构在孤石及上软下硬地层中掘进的施工风险；通过采用提前破碎基岩、预设好换刀加固点和合理的掘进模式及参数等，妥善解决了该地层中的施工难题。
以東莞市軌道交通R2線2309標盾構區間為依託，分析瞭盾構在孤石及上軟下硬地層中掘進的施工風險；通過採用提前破碎基巖、預設好換刀加固點和閤理的掘進模式及參數等，妥善解決瞭該地層中的施工難題。
이동완시궤도교통R2선2309표순구구간위의탁，분석료순구재고석급상연하경지층중굴진적시공풍험；통과채용제전파쇄기암、예설호환도가고점화합리적굴진모식급삼수등，타선해결료해지층중적시공난제。
Based on the example of Bid 2309 of R2 line of Dongguan City Rail Line,the paper analyzes the construction risk of shielding in solitary stone and soft under the hard strata excavation.It properly solves the construction difficulties by advanced rock crushing,presetting blade change point and reasonable tunneling model and parameters.
