Shield tunnel model lining for centrifugal model test and manufacturing method thereof

The invention discloses a shield tunnel model lining for a centrifugal model test and a manufacturing method of the shield tunnel model lining, and relates to the technical field of shield tunnel model tests.The manufacturing method comprises the steps that (1) the geometric similarity ratio of the model test is selected; (2) selecting a proper model lining material; (3) calculating the lining thickness, the cutting groove depth and the bolt diameter size of the model; (4) processing and splicing lining rings; and (5) structure waterproof measures. The technical problems that a traditional shield lining and test method cannot effectively simulate a shield joint, the material similarity degree is low, and the mechanical state of a shield tunnel in a soil body cannot be truly restored can be solved. 本发明公开了一种用于离心模型试验的盾构隧道模型衬砌及其制作方法，涉及盾构隧道模型试验技术领域，其中制作方法包括：(1)选定模型试验几何相似比；(2)选择合适模型衬砌材料；(3)计算模型的衬砌厚度、割槽深度、螺栓直径尺寸；(4)衬砌环加工及拼装；(5)结构防水措施。本发明可以解决传统的盾构衬砌及试验方法无法有效模拟盾构接缝、材料相似程度较低、无法真实还原盾构隧道在土体中的力学状态等技术问题。