岩土工程学报2026，Vol.48Issue(9)：1917-1927,11.DOI:10.11779/CJGE20250381
隧道拱部钢波纹板-钢架组合初期支护结构及力学特征研究
Study on steel corrugated plate-steel frame composite primary support structure for tunnel vault and its mechanical characteristics
摘要
Abstract
To address the issues of high risk of block falling at the vault and low construction efficiency in traditional initial support technologies for super-large cross-section tunnels under complex geological conditions,this study investigates the mechanical characteristics and engineering applicability of the steel corrugated plate-steel frame composite initial support structure.Numerical simulations and model tests are conducted to validate its safety,deformation control capability,and synergistic bearing mechanism.The results indicate that:(1)The composite support performs similarly to traditional shotcrete-steel frame support in terms of surrounding rock deformation control and structural stress response.(2)It exhibits a higher failure threshold and smaller crack propagation range,with significantly enhanced structural integrity.(3)The corrugated plate demonstrates a differentiated stress mechanism,with compressive stress dominant at the peaks and tensile stress dominant at the valleys.(4)The axial force in the corrugated plate is primarily tensile;at the vault,the axial force increases to a peak tensile value and then decreases,eventually transitioning into compression.This composite structure offers both excellent support performance and high construction efficiency,making it suitable for soft rock,fractured zones,and rockburst-prone strata.关键词
隧道工程/钢波纹板-钢架组合初期支护/数值模拟/模型试验/波峰波谷/协同承载机制Key words
tunnel engineering/steel corrugated plate-steel frame composite primary support/numerical simulation/model test/corrugation peaks and valleys/synergistic bearing mechanism分类
建筑与水利引用本文复制引用
冯冀蒙,李艺飞,李涛,宋佳诚,周玉麟,张俊儒..隧道拱部钢波纹板-钢架组合初期支护结构及力学特征研究[J].岩土工程学报,2026,48(9):1917-1927,11.基金项目
国家自然科学基金项目(52478419)This work was supported by the National Natural Science Foundation of China(Grant No.52478419). （52478419）
