- CSCD核心中文核心科技核心
- RCCSE(A+)公路运输高质量期刊T1
- Ei CompendexScopusWJCI
- EBSCOPж(AJ)JST
隧道建设（中英文） ›› 2019, Vol. 39 ›› Issue (7): 1187-1200.DOI: 10.3973/j.issn.2096-4498.2019.07.017
ZHU Jinfeng1, LIAO Hongyan2, YUAN Shouqian1, *, YI Jue1, ZHU Baoshi1
朱劲锋1， 廖鸿雁2， 袁守谦1，*， 易觉1， 朱宝石1
摘要：
Two major concerns have been drawn in the process of shield construction: one is the difficulty in selecting a shield machine; the other is the high risk of opening for cutterhead changing. Based on the existing shield systems, a parallel dualmode shield with freezing cutterhead is developed by optimising internal structure and equipment and carrying the freezing device. The dualmode shield construction technology and freezing cutterhead technology are successfully carried out on project cases including Guangzhou Metro Line 9, Guangzhou Metro Line 21 and 220 kV ShijingHuanxi Electric Tunnel (Xiwan RoadShisha Road Section). The parallel dualmode slurry/EPB shield not only has the functions and advantages of slurry shield and EPB shield but also can switch into slurry/EPB mode for different strata and environments easily. Thus, it can achieve rapid shield tunneling. By combining the shield with the freezing system, the soil around cutterhead can be frozen to provide conditions for chamber opening under atmospheric condition. Meanwhile, it is also compatible with dualmode shield.
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