Lap joint structure of secondary lining trolley and secondary lining concrete

The utility model discloses a lap joint structure of a secondary lining trolley and secondary lining concrete, which comprises a tray, a rubber gasket and a base, the top surface of the tray is provided with a groove, and the rubber gasket is arranged in the groove; the tray is fixed to the base and used for fixing the tray to the end of the secondary lining trolley. According to the utility model, the tray is arranged on the secondary lining trolley, and the compressible rubber gasket is arranged in the tray, so that the soft lap joint between the lining trolley and the lap joint part of the poured upper plate concrete is realized, and the vault closed-loop crack of the poured lining caused by the in-place jacking of the secondary lining trolley can be prevented; slurry leakage and lining slab staggering in the pouring process can be effectively controlled, and the lining construction quality can be effectively guaranteed. Moreover, the lap joint structure provided by the utility model is simple in structure