基于张吉怀铁路隧道衬砌缺陷控制的新型信息化衬砌台车研究与应用

为有效解决、控制和减少衬砌开裂、掉块、脱空等质量缺陷，保障隧道工程建设安全和运营安全，系统地研发了新型信息化衬砌台车，并形成了以衬砌施工信息为基础的隧道二次衬砌病害控制方法。采用旋转式对接快速分料系统，解决了混凝土离析和施工冷缝问题，提高了混凝土浇注施工效率；采用自动振捣系统，减少了漏振、欠振现象，有利于保证混凝土的密实度；采用V型槽零搭接装置，克服了顶裂施工缝的问题；采用可伸缩式堵头板解决了超欠挖时端模封堵的难题；采用信息采集与控制系统，实现了自动化和信息化施工。试验证明，采用新型信息化衬砌台车能够减少开裂、掉块、脱空等衬砌质量缺陷，有效提高衬砌施工质量。

A New Type of Informatized Lining Trolley Based on Control Method of Lining Disease in Zhangjiajie Jishou Huaihua Railway Tunnel and Its Application

In order to effectively solve, control and reduce the quality defects of tunnel lining, i.e. cracks, drops, cavities, etc., and ensure the safety of tunnel construction and operation, a new type of informatized lining trolley is systematically developed, and the control method of tunnel secondary lining disease is formed based on the lining construction information. The application of rotary butt fast material distribution system solves the problems of concrete segregation and construction cold joint, and improves the construction efficiency of concrete pouring. The use of automatic vibration and ramming system reduces the phenomenon of lost vibration and insufficient vibration and ensures the compactness of concrete. The zero lap joint device of V shaped groove is adopted to solve the problem of top crack construction joints. The expandable end template is used to block the end model when overcutting and undercutting. The information acquisition and control system is used to realize automatic and informatized construction. The test shows that the adoption of new informatized lining trolley can reduce the quality defects of lining, i.e., cracks, drops and cavities, and effectively improve the quality of lining construction.