盾构滚刀切削钢筋混凝土刀具荷载理论模型

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引用格式：，等.盾构滚刀切削钢筋混凝土刀具荷载理论模型[J].河北大学学报（自然科学版），2026，46（1）：22-33.DOI：10.3969/j. issn.1000-1565.2026.01.003

中图分类号：U455 文献标志码：A 文章编号：1000-1565（2026）01-0022-12

DOI：10.3969/j.issn.1000-1565.2026.01.003

Theoretical model of load on cutter blade of shield tunneling cutter cutting reinforced concrete

PENG Kaixi¹，WANG Zhansheng²，CHENG Cheng¹，SHI Peixin1 （1.School of Rail Transit，Soochow University，Suzhou 2l5l37，China; 2.Suzhou Rail Transit Construction Co.，Ltd.，Suzhou 215oo5，China）

Abstract：Accurately assessing the cutter load during the process of shield tunneling cuter cutting reinforced concrete is crucial for controlling structural deformation，adjusting excavation parameters，and optimizing cutter design. Currently，there is no systematic theoretical model to guide the cutting of reinforced concrete by disc cuters，and the actual construction performance is mainly evaluated through indirect fedback of construction parameters. To address this，this study establishes a dynamic load model fordisc cuters cutting reinforced concrete by integrating rock-breaking load theory and the failure characteristics of projectile erosion into reinforced concrete materials.Acalculation method for the cuter load under dynamic cutting conditions is proposed，and its feasibility is discussed based on previous experimental results.The findings show that the vertical force of the disc cutter first increases to a peak and then gradually decreases within a complete cuting cycle. When cutting smaler-diameter steel bars，the disc cutter operates more stably，and the peak vertical force is smaler.Disc cuters closer to the center experience more stable loads compared to those at the edge. The calculated results obtained from the proposed theoretical model are consistent with experimental values，with a peak vertical force error of around 10% ，validating the accuracy of the model.

Key words：tunnel engineering；shield machine cutting wall； theoretical model；cavity expansion theory; cutter load

随着地下空间施工技术的不断演进与发展，盾构法因其安全可靠、高效快捷、施工影响小等显著优势，在隧道开挖工程中的应用日益广泛[1-2].然而，随着交通线网的日益加密和城市用地的紧张，盾构掘进过程中常会遇到钢筋混凝土障碍物，例如桥桩、地下连续墙等[3-5].相较于传统清障手段，盾构直接切削穿越障碍物的方式更加经济高效.盾构刀盘通常采用切刀、刮刀、滚刀的不同组合来应对不同环境下的清障需求[6-7]。（剩余11619字）