Abstract：Research purposes: Through the research of choose TBM， this paper supplied choose reference to this kind of project and handle key skill of choose TBM.
Research methods: This paper analysed the engineering geology and hydrography in BEIJING ZJX. Aiming to different TBM's characteristic，this paper put up feasibility analyse and argumentation. And through analysis to the relation of TBM type and stratum osmosis，clay content, grain graduation，this paper put up detailed expatiate and project compare form excavated surface mechanism，earth surface sedimentation，assembly power, cut tool abrasion，construction ex- pense and construction progress.
Research results: Through the analysis to different type of TBM，this paper finished choosing of TBM which can fit for BEIJING metro ZJX project，and discussed the key skill of TBM construction.
Research conclusions: Through the analysis to project geology and hydrography，slurry TBM is the most fit method to BEIJING metro ZJX project.
2007, Vol. 24 
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