掘进急转弯是盾构施工的难点之一,由于盾构配套设备的转弯能力、设计线路的转弯半径等条件限制,急转弯段隧道成型质量往往难以保证,即使线型符合要求,台车变形脱轨一般比较严重。为解决这一难题,本文提出一种盾构后配套在急转弯段的施工台车车轮脱轨的解决方法,并介绍了多转向车轮组的设计原理。 Driving a sharp turn is one of the difficulties in shield construction. Due to the turning ability of the shield supporting equipment and the turning radius of the design line, the forming quality of the tunnel in a sharp turning section is often difficult to guarantee. Even if the line meets the requirements, the deformation of the trolley derails Generally more serious. In order to solve this problem, this paper presents a solution to the derailment of the construction trolley wheels supporting the sharp turns after the shield, and introduces the design principle of the multi-steering wheel set.