岩土工程学报2025，Vol.47Issue(8)：1595-1606,12.DOI:10.11779/CJGE20240345
侧部注浆点布设对盾构隧道受荷变形影响分析
Influence of lateral grouting points on deformation of shield tunnels under loads
摘要
Abstract
As a deformation treatment technology for on-excavated tunnels,the rectification grouting of shield tunnel has been applied in engineering,but there is no basis for the layout of rectification grouting points,and there is no relevant analysis.In order to analyze the influences of different rectification grouting points on deformation rectification effect of tunnels,a model for lateral grouting is established on the basis of indoor model tests,and the influences of rectification grouting points on a shield tunnel are analyzed.Based on the established model,several working conditions of single-point grouting mode and multi-point grouting mode at the side are simulated,and the unit horizontal axial force,additional earth pressure,diameter change and deflection deformation data of the tunnel under different working conditions are read and analyzed.The smaller the net distance between the grouting point and the tunnel,the greater the maximum horizontal earth pressure generated by grouting at the tunnel side,but the smaller the influence range of the additional earth pressure of grouting.When the rectification range is small,it is recommended to adopt single-point grouting.Under the same grouting quantity,uniform grouting at multiple grouting points is beneficial to the uniform distribution of the additional earth pressure of the shield tunnel.When the rectification range is large,it is recommended to adopt multi-point simultaneous grouting mode.关键词
隧道工程/注浆模式/数值模拟/盾构隧道/注浆纠偏/模型试验Key words
tunnel engineering/grouting mode/numerical simulation/shield tunnel/rectification grouting/model test分类
交通工程引用本文复制引用
黄大维,陈后宏,赵梽錡,徐长节,耿大新,江强波..侧部注浆点布设对盾构隧道受荷变形影响分析[J].岩土工程学报,2025,47(8):1595-1606,12.基金项目
国家自然科学基金项目(52378398) （52378398）
江西省主要学科学术和技术带头人领军人才项目(20232BCJ22009) （20232BCJ22009）
江西省自然科学基金项目(20242BAB26077)This work was supported by the National Natural Science Foundation of China(Grant No.52378398),the Jiangxi Province Major Discipline Academic and Technical Leader Leading Talent Project(Grant No.20232BCJ22009),and the Jiangxi Provincial Natural Science Foundation(Grant No.20242BAB26077). （20242BAB26077）
