双线盾构隧道穿越影响下的黄河堤防沉降监测研究  

Research on the Settlement Monitoring of the Yellow River Embankment Under the Influence of Double-Line Shield Tunnel Crossing

作　　者：刘阳 涂善波 李亚楠 Liu Yang;Tu Shanbo;Li Yanan(Yellow River Engineering Consulting Co.,Ltd.,Zhengzhou 450000,Henan)

机构地区：[1]黄河勘测规划设计研究院有限公司,河南郑州450000

出　　处：《陕西水利》2023年第10期135-138,共4页Shaanxi Water Resources

基　　金：水利部重大科技项目(SKR-2022027)。

摘　　要：盾构隧道建设会引起大堤地层变形,危及堤防工程安全,特别是双线盾构掘进,对堤防工程安全影响更大。依托济南济泺路穿黄隧道工程,采用数值模拟方法,建立双线盾构隧道穿越黄河大堤的数值模型,与盾构穿越黄河大堤全过程的大堤表面沉降和深层沉降监测数据进行对比分析,研究双线盾构隧道穿越黄河大堤的沉降规律。结果表明:大堤沉降主要发生在双线盾构掘进完成后的工后阶段,沉降槽中心明显偏于先穿越完成的隧道一侧,双线盾构隧道穿越的叠加扰动对大堤沉降的影响较大,表面沉降变化略滞后于相应位置的深层沉降变化,但整体差异不大。The construction of shield tunnel will cause the formation deformation of levee and endanger the safety of levee engineering,especially the double-line shield tunneling,which has a greater impact on the safety of levee engineering.The numerical model of double-line shield tunnel crossing the Yellow river levee was established by using the numerical simulation method,and the monitoring data of surface settlement and deep settlement of the levee during the whole process of shield tunnel crossing the Yellow river levee were compared and analyzed to study the settlement law of the double-line shield tunnel crossing the Yellow river levee.The results show that the settlement of the levee mainly occurs in the post-construction stage after the completion of the double-line shield tunneling,and the center of the sedimentation tank is obviously biased to the side of the tunnel passed through first.The superimposed disturbance of the double-line shield tunneling has a greater impact on the settlement of the levee,and the change of the surface settlement slightly lags behind the change of the deep settlement at the corresponding position,but the overall difference is not significant.

关 键 词：双线盾构隧道 黄河大堤 数值模拟 表面沉降 深层沉降 

分 类 号：U456.33[建筑科学—桥梁与隧道工程] TV871.4[交通运输工程—道路与铁道工程]