为研究隧道盾构施工条件下上覆大直径雨污管线的变形和内力特征，以北京市某典型地铁隧道盾构工程为例，采用模型试验方法和数值模拟计算方法对管隧平行条件下盾构施工引发上覆雨污管线变形与内力过程进行研究与验证，同时对管隧竖向净距l和管隧横向间距d的变化进行研究。研究表明： 1）盾构隧道施工引起的上覆雨污管线沉降基本呈现平缓分布，需在施工时对管节接口处加密布设监测点，提高监测频率。2）管线顶部与底部均出现受拉状态，需对各管节采取抗拉防护措施。3）隧道和管线都处于类似地层并采用盾构施工时，l在6D范围内（D为隧道直径）、d在4D范围内为管线变形敏感区，管线应力随l和d的增加而减小。

On the basis of typical metro shield tunneling in Beijing, the model test and numerical simulation are applied in order to study and verify the characteristics of deformation and inner force of largediameter overlying rainsewage pipeline. And then, the variation of vertical net distance between tunnel and pipe (l) and horizontal distance between tunnel and pipe (d) is studied. The results demonstrate that: (1) The settlement curve of pipeline distributes mild, as a result, the monitoring points should be laid out densely within the scope of joints of pipeline; and the monitoring frequency should be increased. (2) For every segment should be added with antitension measures because the top and bottom of pipeline are under tension. (3) The areas where l within 6D, where D is tunnel diameter, and d within 4D are sensitive to deformation when tunnel and pipeline are in the similar stratum; and where the stress of pipeline decreases with l and d increase.