护盾式全断面岩石掘进机隧洞施工的围岩适宜性分类

Suitability Classification of Wall Rock When Tunnel Constructed by Shielded Full Face Rock TBM

中国目前的地下工程围岩分类法,其核心为围岩稳定性,对于全断面岩石掘进机施工并不完全适用。从隧洞掘进机施工的特点和总结影响护盾式掘进机施工的地质因素入手,尝试提出以岩性及岩性组合、围岩完整程度、地下水为主要衡量指标的掘进机施工适宜性分类方法,并介绍了山西引黄工程隧洞护盾式掘进机施工的实践,可供同类工程勘察、衬砌设计参考。

At present,the core of our classification of wall rock in underground engineering is the stability of rock.It＇s not suit for shielded full face rock TBM constructing.In this paper,the characteristics of TBM and the summary of geological factors which impact TBM constructing were studied,and then the suitability classification method by lithology and lithological composition,integrity of wall rock,undergroundwater as the main measure of TBM was adviced.At last,the practice which construct tunnel by TBM in Shanxi Yellow River Diversion Project was introduced.It will be referenced by similar projects and lining design.