CAJ | 학술논문

以福建省九龙江北引引水隧道下穿铁路线为研究对象，采用软件FLAC3D分析双洞引水隧道的下穿开挖对鹰厦铁路双线、厦深高铁双线的铁路路基的影响，通过模拟路基未加固和加固2种工况下，隧道单线贯通及双洞贯通后的路基的沉降情况。计算结果表明：最大沉降位于两隧道中心线正上方，路基未加固：右洞开挖对路基沉降的贡献64％左右，左洞贡献36％左右；路基加固：线开挖对路基沉降的贡献66％左右，左洞贡献34％左右。对比实测数据较为一致，证明拟合较好。
이복건성구룡강북인인수수도하천철로선위연구대상，채용연건FLAC3D분석쌍동인수수도적하천개알대응하철로쌍선、하심고철쌍선적철로로기적영향，통과모의로기미가고화가고2충공황하，수도단선관통급쌍동관통후적로기적침강정황。계산결과표명：최대침강위우량수도중심선정상방，로기미가고：우동개알대로기침강적공헌64％좌우，좌동공헌36％좌우；로기가고：선개알대로기침강적공헌66％좌우，좌동공헌34％좌우。대비실측수거교위일치，증명의합교호。
Based on the draw water tunnel of the Jiulong river across railway in Fujian Province as the research object,the finite element analysis software FLAC3D was used to analysis the double draw water tunnel excavation influence of the subgrade,to the double railway of Yingtan -Xiamen and the double railway of Xiamen -Shenzhen. Through simulation the two condition of subgrade unreinforcement and subgrade reinforcement,the situation of settlement of subgrade was analysed when in single tunnel perforation and double tunnel perforation.Research shows that:the position of maximum settlement is just above the the tunnel centerline,the proportion of subgrade settlement caused by the right line excavation is 64% and caused by the left is 36% when subgrade unreinforcement,the proportion of subgrade settlement caused by the right line excavation is 66% and caused by the left is 34% when subgrade reinforcement.The results fit well with monitoring data.