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余荣春 ，黄艳晖 ，刘   强

 

（广西工业职业技术学院 ，南宁 530001)

摘   要 ：为了研究喷射混凝土本构模型对深埋隧道喷射混凝土壳体位移和应力预测的影响，采用新奥法开 挖深埋隧道的二维有限元模拟 ，讨论了不同喷射混凝土模型导致的壳体位移和应力预测演变的差异。模拟结果表明，线性弹性模型可能高估壳体刚度，而考虑时间相关特性的模型更能反映实际情况。SCDP 和 Sch注dlich模型在短期响应上结果相似，Meschke 模型则显示出较高的刚性响应，但其蠕变限制了应力状态。通过比较不同喷射 混凝土模型对深埋隧道壳体力学性能的影响，提供了更准确的预测方法，有助于优化隧道施工和设计，提高工 程的安全性和可靠性。

关键词：岩体 ；深埋隧道 ；喷射混凝土 ；塑性损伤模型 ；Hoek - Brown 屈服准则

中图分类号：U455           

文献标志码：A            

文章编号： 1005- 8249  (2025)  01- 0098- 07 

DOI:10. 19860/j.cnki.issn1005 - 8249.2025 .01 .019

 

YU Rongchun ,  HUANG Yanhui ,  LIU Qiang

(Guangxi Vocational & Technical Institute of Industry ,  Nanning 530001 ,   China)

Abstract: To investigate the impact of shotcrete constitutive models on the prediction of displacement and stress in shotcrete shells of deep-buried tunnels, a two-dimensional finite element simulation was conducted based on the New Austrian Tunneling Method (NATM). The study analyzed the differences in displacement and stress evolution predictions resulting from various shotcrete models. The simulation results indicate that the linear elastic model may overestimate the shell's stiffness, whereas models accounting for time-dependent characteristics better reflect actual conditions. The SCDP and Schädlich models exhibit similar results in short-term responses, while the Meschke model demonstrates higher rigidity; however, its creep effect limits the stress state. By comparing the influence of different shotcrete models on the mechanical performance of shotcrete shells, the study provides a more accurate predictive approach, contributing to the optimization of tunnel construction and design and enhancing the safety and reliability of engineering projects.

Key words: rock mass; deep tunneling; shotcrete; damage-plasticity model; hoek-brown failure criterion

作者简介： 余荣春  (1981 —) , 男 ，硕士， 副教授，研究方向 ：岩土工程。

通信作者 ，黄艳晖  (1979—) , 女，硕士， 工程师，研究方 向 ：建筑与土木工程。

收稿日期：2023 - 01 - 05