On June 27, the composite TBM for the left line of the section from Kuangjiatang Station to Zhuyuancun Station of Phase I of Chongqing Metro Line 24 successfully launched, completing the construction milestone 30 days ahead of schedule and laying a solid foundation for full-line breakthrough. At present, construction work on the right line of this section has also been carried out simultaneously.

The total length of the line in this section is approximately 1347.7 m. The tunnel in this section mainly passes through sandstone and argillaceous sandstone strata. The overall length of the equipment is approximately 82 m, the length of the main machine is approximately 8 m, and the installed power is 1750 kW.