为研究斜向双线隧道近距离开挖对周围土工环境的影响，依托上海市轨道交通11号线徐家汇站—上海体育馆站区间隧道盾构开挖工程，基于Mohr-Coulomb弹塑性土体模型，采用有限元数值计算软件，模拟斜向双线隧道盾构施工相互影响工况。以隧道相对位置为变量，对隧道施工引起的周边地层变形进行模拟，分析双线隧道斜向3种工况下隧道施工对周围土体变形的影响，得到以下结论： 1）地表沉降曲线在双线隧道水平距离较小时，主要呈单峰状态，且两隧道竖直距离越大，单峰效果越明显； 随着其水平距离增大，逐渐出现双峰效果。2）埋深较浅的隧道施工对地表沉降的影响较大，且隧道中心线以上的土体受扰动程度较大。3）3种斜向工况均在土体表面及较浅隧道附近出现较大的水平位移。

In order to study the influence of excavation of oblique close doubleline tunnels on surrounding geotechnical environment, the interaction conditions of the oblique close doubleline shield tunneling in Xujiahui StationShanghai Stadium Station on Shanghai Rail Transit Line No. 11 is simulated by MohrCoulomb elastoplastic soil model and finite element numerical simulation method. With the relative position of the tunnels as variables, the surrounding ground deformation caused by tunneling is simulated. The soil deformation induced by tunneling is analyzed under three conditions in oblique alignment. Some conclusions are drawn as follows. (1) The ground surface settlement curve mainly presents single peak when the horizontal distance between doubleline tunnels is small; and the unimodality will be more evident with the increase of vertical distance of the doubleline tunnels; the bimodality gradually appears as the horizontal distance increase. (2) There is greater influence that caused by the construction of the shallower tunnel on ground surface subsidence; and the soil above the centerline of the tunnel is affected much. (3) Larger horizontal displacements take place at the soil surface and near the shallower tunnel in three oblique conditions.