CAJ | 학술논문

依托谷城至竹溪高速公路小漩隧道，针对不同围岩段的特点，对隧道地表沉降、洞内收敛变形及拱顶下沉等项目进行了现场监测与分析，研究不同级别围岩变形时程曲线和纵向分布曲线的基本规律。并利用有限元分析软件ABAQUS模拟不同围岩级别隧道开挖过程，将数值模拟结果与现场监测数据结合，分析围岩级别对隧道围岩稳定性的影响。结果表明：围岩级别越高，隧道开挖过程中地表下沉和洞内变形越大，变形稳定的时间也越长。
의탁곡성지죽계고속공로소선수도，침대불동위암단적특점，대수도지표침강、동내수렴변형급공정하침등항목진행료현장감측여분석，연구불동급별위암변형시정곡선화종향분포곡선적기본규률。병이용유한원분석연건ABAQUS모의불동위암급별수도개알과정，장수치모의결과여현장감측수거결합，분석위암급별대수도위암은정성적영향。결과표명：위암급별월고，수도개알과정중지표하침화동내변형월대，변형은정적시간야월장。
The ground surface settlement,convergence and crown settlement of Xiaoxun tunnel Gu-zhu expressway is monitored and analyzed in accordance with the characteristics of the surrounding rocks of different grades.The basic law of the time-dependent curves and longitudinal distribution curves of the deformation of surrounding rocks of different grades are discussed.The excavation process of the tunnel in surrounding rocks of different grades is simulated by means of finite element software ABAQUS,and the influence of the surrounding rock grades on the stability of the surrounding rocks of the tunnel is analyzed by considering the numerical simulation results and the field monitoring data.The study results show that the higher the grade of the surrounding rocks is,the larger the ground surface settlement and the tunnel deformation during tunnel excavation will be,and the longer time it will take for the deformation to become stable.