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余榮春 ，黃艷暉 ，劉   強

 

（廣西工業(yè)職業(yè)技術(shù)學(xué)院 ，南寧 530001)

摘   要 ：為了研究噴射混凝土本構(gòu)模型對深埋隧道噴射混凝土殼體位移和應(yīng)力預(yù)測的影響，采用新奧法開 挖深埋隧道的二維有限元模擬 ，討論了不同噴射混凝土模型導(dǎo)致的殼體位移和應(yīng)力預(yù)測演變的差異。模擬結(jié)果表明，線性彈性模型可能高估殼體剛度，而考慮時間相關(guān)特性的模型更能反映實際情況。SCDP 和 Sch注dlich模型在短期響應(yīng)上結(jié)果相似，Meschke 模型則顯示出較高的剛性響應(yīng)，但其蠕變限制了應(yīng)力狀態(tài)。通過比較不同噴射 混凝土模型對深埋隧道殼體力學(xué)性能的影響，提供了更準(zhǔn)確的預(yù)測方法，有助于優(yōu)化隧道施工和設(shè)計，提高工 程的安全性和可靠性。

關(guān)鍵詞：巖體 ；深埋隧道 ；噴射混凝土 ；塑性損傷模型 ；Hoek - Brown 屈服準(zhǔn)則

中圖分類號：U455           

文獻標(biāo)志碼：A            

文章編號： 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 Sch?dlich 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

作者簡介： 余榮春  (1981 —) , 男 ，碩士， 副教授，研究方向 ：巖土工程。

通信作者 ，黃艷暉  (1979—) , 女，碩士， 工程師，研究方 向 ：建筑與土木工程。

收稿日期：2023 - 01 - 05