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中文摘要：
成都地铁一号线一期工程区间隧道大多通过富水砂卵石地层，且含有少量大粒径漂石。结合地层这一特点，对成都地铁采用加泥式土压平衡盾构施工的几个关键问题——大漂石处理方案、刀盘刀具的耐磨性、喷涌防治等进行了分析和探讨。
英文摘要：
The first stage project of line 1 of Chengdu Metro mostly passes through water-rich sandy cobble ground, which contains a small amount of large boulders. In the paper, the authors make analysis and discussions on several key issues related to the application of mudding-type EPB shields to sandy cobble ground in Chengdu, which includes the treatment of the large boulders, the wearing of the cutter heads and the cutting tools and the prevention and control of mud bursting.
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