This study aims to identify optimal layout designs and specifications for maximizing the advance rate of tunnel boring machines (TBMs) in soft ground tunneling projects. Field data from numerous projects were analyzed, utilizing a database compiled by the author over the past 20 years. The paper discusses the classification of ground types, center opening types, and scraper layout designs based on the information available in the database. The major design parameters of soft ground TBM cutterheads, including average opening ratio, opening ratio along the radius, and opening width along the radius, are extracted and correlated with TBM diameter, ground type, and center opening type. The findings provide valuable insights for the design of optimal openings in soft ground excavation conditions.

中文翻译：

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基于现场数据分析的软土地基条件下TBM刀盘的最优设计规范


本研究旨在确定最佳布局设计和规格，以最大限度地提高软土地基隧道工程中隧道掘进机 （TBM） 的掘进速度。利用作者在过去 20 年中编制的数据库，分析了来自众多项目的现场数据。本文根据数据库中的可用信息讨论了地面类型、中心开口类型和刮板布局设计的分类。提取了软土TBM刀盘的主要设计参数，包括平均开孔比、沿半径的开口比和沿半径的开口宽度，并与TBM直径、地面类型和中心开口类型相关联。这些发现为在软土地基开挖条件下设计最佳开口提供了宝贵的见解。